1 2022-10-05 Paulo Andrade <pcpa@gnu.org>
3 * check/lightning.c: Remove -Dmacro=value from usage and attempt
4 to parse it. It was buggy and not properly implemented. Now
5 it pass any extra options to the generated jit. To pass any
6 option starting with '-' need to also use '--'.
7 * check/collatz.e: New sample file showing an example of jit
10 2022-10-04 Paulo Andrade <pcpa@gnu.org>
12 * include/lightning/jit_private.h: Add new flag to jit_block_t.
13 * lib/lightning.c: Rewrite register liveness and state at block
14 entry code to avoid a very expensive and non scaling code path.
15 Now it attempts to do as few as possible recomputations when
16 merging state of adjacent blocks, still doing one extra nop pass
17 (in the sense that it will not find any changes) to make sure the
20 2022-09-30 Paulo Andrade <pcpa@gnu.org>
22 * include/lightning/jit_private.h: Implement new data structures
24 * lib/jit_disasm.c: Extra disassemble code for riscv constant pool.
25 * lib/jit_riscv-cpu.c: Modify movi to use constant pool if 3 or
26 more instructions are required to construct constant and modify
27 movi_p to use a pc relative load from a constant pool.
28 lib/jit_riscv-sz.c: Update for new constant pool code. Most
29 instructions that need 64 bit constants are significantly reduced.
30 * lib/jit_riscv.c: Implement most of the constant pool code.
31 * lib/jit_size.c: Update for estimate of code generation size.
32 * lib/lightning.c: Update for riscv specific code, and also make
33 sure to mprotect the constant pool as executable.
35 2022-09-08 Paulo Andrade <pcpa@gnu.org>
37 * lib/jit_fallback.c: Implement fallback compare and swap with
39 * check/Makefile.am: Update for new cas{r,i} simple test.
40 * check/catomic.c, check/catomic.ok: New test case for
41 simple compare and swap atomic operation.
42 * check/lightning.c: Add entries to be able to use
43 the new compare and swap atomic operation. Still missing
44 a general test, only the basic C version.
45 * include/lightning.h.in: Include pthread.h, even if not
46 needing a fallback compare and swap.
47 * include/lightning/jit_private.h: Add support for a register pair
48 in second argument. Required by the new casr and casi operations.
49 * lib/jit_aarch64-cpu.c, lib/jit_aarch64-sz.c, lib/jit_aarch64.c,
50 lib/jit_ppc-cpu.c, lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_x86-cpu.c,
51 lib/jit_x86-sz.c, lib/jit_x86.c: Implement inline code for compare
53 * lib/jit_arm-cpu.c, lib/jit_arm-sz.c, lib/jit_arm.c: Implement
54 inline code for compare and swap if cpu is armv7, otherwise, use
55 a fallback with pthreads.
56 * lib/jit_alpha-cpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c,
57 lib/jit_hppa-cpu.c, lib/jit_hppa-sz.c, lib/jit_hppa.c,
58 lib/jit_ia64-cpu.c, lib/jit_ia64-sz.c, lib/jit_ia64.c,
59 lib/jit_mips-cpu.c, lib/jit_mips-sz.c, lib/jit_mips.c,
60 lib/jit_riscv-cpu.c, lib/jit_riscv-sz.c, lib/jit_riscv.c,
61 lib/jit_s390-cpu.c, lib/jit_s390-sz.c, lib/jit_s390.c,
62 lib/jit_sparc-cpu.c, lib/jit_sparc-sz.c, lib/jit_sparc.c: Implement
63 fallback compare and swap with pthreads. At least some of these
64 should be updated for inline code generation.
65 * lib/jit_names.c, lib/jit_print.c: lib/lightning.c: Update for the
66 new compare and swap operation.
67 * doc/body.texi: Add simple documentation of the compare and swap
70 2022-08-12 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
73 * doc/body.texi: Add documentation for jit_align.
75 2022-05-14 Paulo Andrade <pcpa@gnu.org>
77 * include/lightning.h.in: Reorder jit_mov{n,z}r in instruction list.
78 * lib/jit_alpha.c, lib/jit_alpha-cpu.c, lib/jit_hppa.c,
79 lib/jit_hppa-cpu.c, lib/jit_ia64.c, lib/jit_ia64-cpu.c,
80 lib/jit_riscv.c, lib/jit_riscv-cpu.c, lib/jit_s390.c,
81 lib/jit_s390-cpu.c, lib/jit_sparc.c, lib/jit_sparc-cpu.c:
82 Implement fallback jit_mov{n,z}r. These are a somewhat cheap
83 implementation, but should be reviewed for the arches that already
84 have a proper conditional move.
85 * lib/jit_arm-sz.c, lib/jit_mips-sz.c: Add missing maximum size
86 estimative and reorder.
87 * lib/jit_aarch64-sz.c, lib/jit_x86-sz.c, lib/jit_ppc-sz.c:
88 Reorder entry to match definition order.
89 * lib/jit_aarch64-sz.c, lib/jit_alpha-sz.c, lib/jit_hppa-sz.c,
90 lib/jit_ia64-sz.c, lib/jit_riscv-sz.c, lib/jit_s390-sz.c,
91 lib/jit_sparc-sz.c: Add heuristic value, basically the sum of
92 the cost of a movr + beqr.
93 * lib/jit_names.c: Add entries for debug output of mov{n,z}r.
94 * lib/lightning.c: Use proper bitmask in jit_classify.
96 2021-04-03 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
98 * check/Makefile.am: Add test for the live instruction.
99 * check/live.ok: New file.
100 * check/live.tst: New file.
101 * doc/body.texi: Add documentation for the live instruction and
102 for jit_get_reg/jit_get_unreg. Fix menu entries.
103 * include/lightning.h.in (jit_get_reg, jit_unget_reg): Expose the
104 macros in the public header file.
105 * include/lightning/jit_private.h (jit_get_reg, jit_unget_reg):
106 Remove the macros from the private header file.
108 2021-04-03 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
110 * Makefile.am, check/Makefile.am, doc/Makefile.am,
111 lib/Makefile.am: Include $(top_builddir)/include in include paths
112 for the autoconf-generated header file lightning.h.
114 2021-04-03 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
116 * doc/.gitignore: Add version.texi to list of ignored files.
117 * doc/version.texi: Remove file from version control.
119 2020-18-04 Paulo Andrade <pcpa@gnu.org>
121 * lib/jit_x86-cpu.c, lib/jit_x86.c: Implement %rip relative
122 calls and jumps on x86_64. Currently very conservative, assuming
123 a jit block can be larger than 2G, so, if a jump or call is in
124 the same jit generation, but target is unknown, use an indirect
125 branch (could have an option to assume a jit code block is
126 never larger than 2G). Also a deoptimization is that now does
127 not always generate ip relative jmpi; previously implicitly
128 assumed jmpi would never be larger than 2G. Overall still an
131 2020-23-01 Paulo Andrade <pcpa@gnu.org>
133 * lib/lightning.c: Add a proper fix to the condition of considering
134 a register dead at entry of a block when it modifies the register
135 !after! a branch to a target where it is live.
136 The correction is just to split blocks on branches. It uses an
137 extra label per branch, but makes following the code simpler and
138 avoid costly searches.
140 2020-22-01 Paulo Andrade <pcpa@gnu.org>
142 * lib/lightning.c: Correct a special condition of a register
143 only assigned in a block, and incorrectly marked as dead before
144 a jump where the register is live.
146 2019-10-04 Paulo Andrade <pcpa@gnu.org>
148 * check/lightning.c, include/lightning/jit_private.h,
149 include/lightning/jit_x86.h, lib/jit_x86-cpu.c, lib/jit_x86-sz.c,
150 lib/jit_x86.c: Correct issues with MinGW64 that defines _WIN32
151 and needs long long for jit_word_t.
153 2019-09-16 Paulo Andrade <pcpa@gnu.org>
155 * lib/lightning.c: Do not add registers that are never modified
156 to the set of registers to scan for live range, what might
157 consume a lot of cpu time, doing nothing.
159 2019-09-16 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
161 * include/lightning/jit_x86.h, lib/jit_x86.c: Correct x86_64
162 backend, made %r12 a callee-save register as dictated by the
165 2019-09-16 Paulo Andrade <pcpa@gnu.org>
167 * Makefile.am: Do not force CFLAGS for the get_jit_size target.
168 * check/lightning.c: Drop __ppc__ check.
169 * include/lightning.h.in: Drop __ppc__ check. Add new
170 jit_flag_vararg flag, for special case in powerpc 32 bit using
171 the SYSV abi, and need to pass an extra argument during code
173 * include/lightning/jit_ppc.c: Drop __ppc_ check. Remove the
174 ABI_ELFv2 macro, as it now directly checks for the _CALL_ELF
175 value when/if appropriate.
176 * include/lightning/jit_private.h: Drop __ppc_ check. Check for
177 _CALL_AIXDESC to define extra data to handle function
179 * lib/jit_ppc-cpu.c: Update to check for _CALL_SYSV; assume
180 !_CALL_SYSV == (_CALL_AIX || _CALL_LINUX). Significant code
181 rework for the SYSV abi.
182 * lib/jit_ppc-sz.c: Update for the SYSV abi.
183 * lib/jit_ppc.c: Update for the SYSV abi. Add matching va_list
184 type. Drop __ppc__ check.
185 * lib/jit_size.c: Drop __ppc_ check.
186 * lib/lightning.c: Drop __ppc__ check. Add proper check for
187 __powerpc__ and _CALL_AIXDESC to manage function descriptors.
188 * lib/size.c: Update to drop __pppc_ check and SYSV abi.
190 2019-08-30 Paulo Andrade <pcpa@gnu.org>
192 * lib/jit_mips-cpu.c: Use JALR to get the same effect as JR, as
193 in mips32r6 JR generates an illegal instruction. Thanks to
194 Bruno Haible for providing a patch and the information, reported at
195 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925129
198 2019-08-29 Marc Nieper-Wißkirchen <marc@nieper-wisskirchen.de>
200 * include/lightning/jit_private.h: Move definition of offsetof
201 from the public header file here.
203 * configure.ac, include/Makefile.am, include/lightning.h,
204 include/lightning.h.in: Generate lightning.h from lightning.in.h
205 and remove the dependence on config.h from the public header file.
207 2019-06-04 Paulo Andrade <pcpa@gnu.org>
209 * include/lightning/jit_riscv.h, lib/jit_riscv-cpu.c,
210 lib/jit_riscv-fpu.c, lib/jit_riscv-sz.c, lib/jit_riscv.c:
211 Implement riscv port. Only 64 bit Linux supported. Built on
214 * check/all.tst, check/float.tst, configure.ac, include/lightning.h,
215 include/lightning/Makefile.am, include/lightning/jit_private.h,
216 lib/Makefile.am, lib/jit_disasm.c, lib/jit_size.c, lib/lightning.c:
217 Minor updates for the new riscv port.
219 2019-06-04 Paulo Andrade <pcpa@gnu.org>
221 * lib/jit_alpha.c lib/jit_ia64.c lib/jit_mips.c lib/jit_sparc.c:
222 Correct assertion of _jitc->regarg after emiting an instruction.
223 jit_carry may be set, but not an argument to the current instruction.
225 2019-06-01 Paulo Andrade <pcpa@gnu.org>
227 * lib/lightning.c: Correct assertion on jit_unget_reg when the
228 argument is jit_carry, and jit_carry was not used in the
231 2019-06-01 Paulo Andrade <pcpa@gnu.org>
233 * include/lightning/jit_private.h: Remove no longer need
234 setmask field of jit_block_t and blockmask from jit_compiler_t.
236 * lib/lightning.c: Rework of register live and unknown state
237 information during jit generation. It no longer recurses nor
238 do dangerous bit unset of registers in unknown state. The
239 only pitfall known, that must be taken care now is that jmpr
240 (or jmpi to not a jit node) is treated as a function call, as
241 otherwise it would need to consider all registers live, and
242 spill/reload during all jit generation.
244 2018-12-28 Paulo Andrade <pcpa@gnu.org>
246 * lib/jit_disasm.c: Release bfd handle. Thanks for patch to
247 Marc Nieper-Wißkirchen.
249 2018-08-30 Paulo Andrade <pcpa@gnu.org>
251 * lib/jit_disasm.c: Add hints to select hppa disassembler.
253 * lib/jit_hppa-cpu.c: Correct address of vastart when all
254 argument registers were used as non vararg arguments.
256 * lib/jit_hppa-fpu.c: Disable load/store of rv,ix,rb where
257 rv is the value, ix is an register or integer offset and rb
258 is a base register. These should be better tested, as they do
259 not work on all environments (fail on qemu-hppa).
261 2018-04-20 Paulo Andrade <pcpa@gnu.org>
263 * include/lightning/jit_private.h: Add new register classes to
264 flag float registers and double only registers, required for sparc64
265 where only low 32 bit fpr registers can be used for single precision
267 Add new 128 bit jit_regset_t type for sparc64 register set.
269 * include/lightning/jit_sparc.h, lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c,
270 lib/jit_sparc-sz.c, lib/jit_sparc.c: Update for 64 bits sparc.
272 * lib/lightning.c: Update for new jit_regset_t required for sparc64.
274 2018-02-26 Paulo Andrade <pcpa@gnu.org>
276 * check/lightning.c, include/lightning.h: Add the new jit_va_push
277 interface. That should be called when passing a va_list to a C
278 function. This is required because on Alpha a va_list is passed
279 by value, and lightning does not know about data types, so, cannot
280 understand it is pushing a va_list as argument.
282 * lib/jit_names.c, lib/lightning.c: Minor changes for the new
285 * check/cva_list.c: Update only test case using jit_va_push, to
286 pass a va_list to a C function.
288 doc/body.texi: Better documentation of the varargs interface.
290 * jit_alpha.c, jit_alpha-cpu.c: Update to properly push a
291 C va_list and correctly calculate varargs offset.
293 * lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-sz.c,
294 lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_hppa-sz.c, lib/jit_hppa.c,
295 lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-sz.c, lib/jit_mips.c,
296 lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390-sz.c, lib/jit_s390.c,
297 lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-sz.c, lib/jit_x86.c:
298 Update for the new jit_va_push interface.
300 2018-02-22 Paulo Andrade <pcpa@gnu.org>
302 * lib/jit_alpha-cpu.c: Always set t12 to the address of the
303 current function, to properly work on all systems. Previously
304 the shortcut did only work on Tru64. For Linux and glibc the
307 2018-02-22 Paulo Andrade <pcpa@gnu.org>
309 * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c,
310 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c:
311 Correct wrong logic in usage of jit_live in jit_retr. The
312 problem is that if a temporary is required during epilog,
313 the return register might be allocated, so, jit_live must always
316 2018-01-31 Paulo Andrade <pcpa@gnu.org>
318 * lib/lightning.c: Avoid deep recursions when computing live
321 2018-01-31 Paulo Andrade <pcpa@gnu.org>
323 * lib/jit_mips-cpu.c: Correct frame size and varargs
324 initialization for the n32 abi.
325 * lib/jit_mips.c, lib/jit_mips-fpu.c: Correct 32 bit abis
328 2017-09-13 Paulo Andrade <pcpa@gnu.org>
330 * configure.ac: Add check for binutils 2.29 prototype to the
331 disassembler function.
332 * lib/jit_disasm.c: Adapt for binutils 2.29 change.
334 2017-06-09 Paulo Andrade <pcpa@gnu.org>
336 * include/lightning/jit_private.h, lib/lightning.c: Add a
337 second pass from start when computing register live ranges.
338 This should be used temporarily, and is required for certain
339 loop constructs, with several consecutive blocks not referencing
342 2016-05-05 Paulo Andrade <pcpa@gnu.org>
344 * lib/lightning.c: Correct wrong movr simplification,
345 remove no longer needed code to set return registers live
346 and update live register set when reaching a label boundary,
347 but do not descend if the block has been already visited.
348 The later need some tuning for complex code generation, where
349 it will still have issues.
351 2015-11-30 Paulo Andrade <pcpa@gnu.org>
353 * doc/body.texi: Change documentation to no longer say
354 it is a variant of the Fibonacci sequence, and document
355 a proper implementation.
356 Thanks to Jon Arintok for pointing out that the Fibonacci
357 sequence generation was incorrect. It was documented, but
360 * check/fib.tst, check/fib.ok, check/bp.tst, check/bp.ok,
361 doc/ifib.c, doc/rbif.c: Implement a proper Fibonacci
362 sequence implementation.
364 2015-07-03 Paulo Andrade <pcpa@gnu.org>
366 * lib/jit_mips-cpu.c: Correct definition of htonr_ul.
367 Correct prolog/epilog/va* routines to work on o64 abi.
369 * lib/jit_mips-fpu.c: Correct load of double literal
370 argument when not using a data buffer.
371 Remove alignment correction in vaarg_d if using the
374 * lib/jit_mips.c: Correct code to allow creating variadic
375 jit functions when using the new mips abi.
377 * lib/jit_rewind.c: Minor adjust for rewind when using
378 the new mips abi, if there are varargs arguments in
381 2015-06-06 Paulo Andrade <pcpa@gnu.org>
383 * lib/jit_ia64-cpu.c: Search backward for the last output
384 register used, otherwise would stop too early if a float
385 argument used the slot.
386 Correct offset of first va_list argument, and use proper
389 * lib/jit_ia64-fpu.c: Add new functions to move a gpr
390 to a fpr register, to counterpart the ones that move a
391 fpr to a gpr. These are required to properly implement
392 jit_getarg*_{f,d} on complex prototypes, or variadic
395 * lib/jit_ia64-sz.c: Update for support to jit variadic
398 * lib/jit_ia64.c: Implement proper abi for variadic
401 2015-06-04 Paulo Andrade <pcpa@gnu.org>
403 * lib/jit_rewind.c: New file implementing generic functions
404 to "rewind", or rewrite IR code sequences.
406 * include/lightning.h: Add several new codes, that previously
407 were a function call, that would synthesize the operation.
408 Now, there is a code for the operation, and a new flag to
409 know an operation is synthesized.
411 * include/lightning/jit_private.h: Add several new macros to
412 help construct synthesized IR code sequences.
414 * lib/Makefile.am: Update for lib/jit_rewind.c.
416 * lib/jit_disasm.c: Update for a small rework on jit_node_t,
417 so that --enable-devel-disassembler does not need a change
418 in the layout of jit_node_t.
420 * lib/jit_names.c: Update for the new codes.
422 * lib/jit_print.c: Update to print more readable output, and
423 flag synthesized IR code sequences.
425 * lib/jit_aarch64-sz.c, lib/jit_aarch64.c,
426 lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_x86-sz.c,
427 lib/jit_x86.c: Update for new synthesized IR code sequences.
429 * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu., lib/jit_ppc-sz.c,
430 lib/jit_ppc.c, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c,
431 lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_s390-fpu.c,
432 lib/jit_s390-sz.c, lib/jit_s390.c: Update for new synthesized
433 IR code sequences and correct bugs in the initial varargs
434 implementation support.
436 * lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_hppa-sz.c,
437 lib/jit_hppa.c, lib/jit_ia64-sz.c, lib/jit_ia64.c,
438 lib/jit_sparc-sz.c, lib/jit_sparc.c: Add generic, untested
439 support for the new synthesized IR code sequences. Known
440 most likely broken right now, and should be corrected once
441 access to these hosts is available.
443 * lib/lightning.c: Update for new IR codes, and add support
444 for not yet existing instructions that change third argument.
446 * size.c: Change to use different tables for LE and BE PowerPC.
447 Correct a wrong endif for x32.
449 2015-05-25 Paulo Andrade <pcpa@gnu.org>
451 * check/cva_list.c: New file implementing a test to ensure
452 the value returned by jit_va_start is a valid C va_list.
454 * check/va_list.ok: New simple helper file, as now the
455 va_list.tst test is enabled.
457 * check/va_list.tst: Rewritten for an extensive variadic
460 * check/Makefile.am: Update for the new tests.
462 * lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c,
463 lib/jit_arm.c: Correct broken software float in a previous
464 commit. Note that the hard float abi implementation is known
465 broken at this time, for special cases involving variadic
466 functions, and should be corrected next.
468 lib/jit_x86-cpu.c, lib/jit_x86-sz.c, lib/jit_x86.c: Correct
469 the jit_va_list_t semantics to match C va_list.
471 2015-05-24 Paulo Andrade <pcpa@gnu.org>
473 * lib/Makefile.am: Bump library major. This is a preparation
474 for a rework that was due for quite some time, but that is
475 now required to properly implement variadic jit functions.
476 The rework is mainly required to know at prolog parsing, if
477 a function is variadic or not. This will benefit a few
478 backends, and is mandatory for the hard float arm abi.
479 The rework was already planned for quite some time, to
480 be able to use a variable stack framesize, and for leaf
481 functions optimization where applicable.
482 The change will be source compatible, but will change
483 some internals, and jit_code_t values, as some new will
485 The only behavior change is that, jit_arg_register_p may
486 change return value on hard float arm abi, if called before
487 or after jit_ellipsis. Common sense anyway, would say to
488 make that call after jit_ellipsis, but documentation
489 should be updated for it.
491 2015-05-24 Paulo Andrade <pcpa@gnu.org>
493 * lib/jit_aarch64-fpu.c, lib/jit_aarch64.c: Correct base
494 aarch64 varargs code.
496 2015-05-24 Paulo Andrade <pcpa@gnu.org>
498 * check/lightning.c: Clearly run check if clang is the system
501 2015-05-20 Paulo Andrade <pcpa@gnu.org>
503 * lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c, lib/jit_sparc.c:
504 Add base support to jit vararg functions to the sparc backend.
506 2015-05-20 Paulo Andrade <pcpa@gnu.org>
508 * lib/jit_alpha-cpu.c, lib/jit_alpha-fpu.c, lib/jit_alpha.c:
509 Add base support to jit vararg functions to the alpha backend.
511 2015-05-19 Paulo Andrade <pcpa@gnu.org>
513 * lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c, lib/jit_hppa.c:
514 Add base support to jit vararg functions to the hppa backend.
516 2015-05-10 Paulo Andrade <pcpa@gnu.org>
518 * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c:
519 Add base support to jit vararg functions to the ia64 backend.
521 2015-05-10 Paulo Andrade <pcpa@gnu.org>
523 * lib/jit_ia64-fpu.c, lib/jit_ia64.c: Correct movi_d_w
524 and movi_f_w implementation to work when not using a
525 data buffer. This causes the check varargs.tst to
526 work when passing "-d" to the lightning test tool.
528 2015-05-10 Paulo Andrade <pcpa@gnu.org>
530 * lib/jit_ia64.c: Implement inline assembly cache flush,
531 required on multiprocessor systems.
533 2015-05-06 Paulo Andrade <pcpa@gnu.org>
535 * lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c:
536 Add base support to jit vararg functions to the mips backend.
537 Currently only supported on the o32 abi, until access to a
538 n32 system is arranged.
540 2015-05-05 Paulo Andrade <pcpa@gnu.org>
542 * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c:
543 Add base support to jit vararg functions to the PowerPC backend.
545 2015-05-02 Paulo Andrade <pcpa@gnu.org>
547 * lib/jit_s390-cpu.c, lib/jit_s390-fpu.c, lib/jit_s390.c:
548 Add base support to jit vararg functions to the s390 backend.
550 2015-05-01 Paulo Andrade <pcpa@gnu.org>
552 * lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c,
553 lib/jit_arm.c: Add base support to jit vararg
554 functions to the arm backend.
556 2015-04-30 Paulo Andrade <pcpa@gnu.org>
558 * lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c,
559 lib/jit_aarch64.c: Add base support to jit vararg
560 functions to the aarch64 backend.
562 2015-04-27 Paulo Andrade <pcpa@gnu.org>
564 * include/lightning.h, include/lightning/jit_private.h,
565 lib/jit_names.c, lib/lightning.c: Add initial support
566 for the new jit_va_start, jit_va_arg, jit_va_arg_d, and
567 jit_va_end interfaces. The jit_va_start call is supposed
568 to return a va_list compatible pointer, but not yet
569 decided if it will be "declared" stdarg compatible,
570 as for now only x86 support has been added (and should
571 be compatible), but issues may arise on other backends.
573 * check/lightning.c: Add wrappers to call the new jit_va_*
576 * lib/jit_x86-cpu.c, lib/jit_x86.c: Implement the new
579 * lib/jit_x86-sz.c: Add fields, but not yet fully updated,
580 as this is an intermediate commit.
582 * lib/jit_aarch64-sz.c, lib/jit_aarch64.c,
583 lib/jit_alpha-sz.c, lib/jit_alpha.c,
584 lib/jit_arm-sz.c, lib/jit_arm.c,
585 lib/jit_hppa-sz.c, lib/jit_hppa.c,
586 lib/jit_ia64-sz.c, lib/jit_ia64.c,
587 lib/jit_mips-sz.c, lib/jit_mips.c,
588 lib/jit_ppc-sz.c, lib/jit_ppc.c,
589 lib/jit_s390-sz.c, lib/jit_s390.c,
590 lib/jit_sparc-sz.c, lib/jit_sparc.c: Prepare for the
591 new jit_va_* interfaces. Not yet implemented, and will
592 cause an assertion if used.
594 * check/va_list.tst: Simple early test case, that works
595 on x86_64, x32, ix86, cygwin, and cygwin64.
597 2015-02-17 Paulo Andrade <pcpa@gnu.org>
599 * include/lightning.h, include/lightning/jit_private.h,
600 lib/jit_aarch64-cpu.c, lib/jit_aarch64.c,
601 lib/jit_alpha-cpu.c, lib/jit_alpha.c,
602 lib/jit_arm-cpu.c, lib/jit_arm.c,
603 lib/jit_hppa-cpu.c, lib/jit_hppa.c,
604 lib/jit_ia64-cpu.c, lib/jit_ia64.c,
605 lib/jit_mips-cpu.c, lib/jit_mips.c,
606 lib/jit_ppc-cpu.c, lib/jit_ppc.c,
607 lib/jit_s390-cpu.c, lib/jit_s390.c,
608 lib/jit_sparc-cpu.c, lib/jit_sparc.c,
609 lib/jit_x86-cpu.c, lib/jit_x86.c: Implement the new
610 jit_allocar(offs, size) interface, that receives
611 two integer registers arguments, allocates space
612 dynamically in the stack, returns the offset in
613 the first argument, and uses the second argument
614 for the size in bytes of the memory to be allocated.
616 * check/allocar.ok, check/allocar.tst: New files
617 implementing test cases for the new jit_allocar
620 * check/Makefile.am, check/lightning.c: Update for
621 the new test case and interface.
623 * doc/body.texi: Add documentation of the new
626 2015-02-17 Paulo Andrade <pcpa@gnu.org>
628 * include/lightning/jit_x86.h, lib/jit_x86-cpu.c,
629 lib/jit_x86-x87.c: No longer make st(7) available.
630 Need to keep one x87 slots empty to avoid exceptions.
631 This has the side effect of no longer needing the
632 hackish emms instruction before a function call.
634 2015-02-16 Paulo Andrade <pcpa@gnu.org>
636 * lib/lightning.c: Remove the jit_regno_patch bitfield
637 register fields before actual emit, as it is only really
638 used before emit, otherwise, on special conditions it
639 may consider live registers as dead during code emit.
641 2015-02-15 Paulo Andrade <pcpa@gnu.org>
643 * lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c:
644 Correct encoding of ldxr* stxr* in the x32 abi. If the
645 displacement register is negative, it would generate
646 a 64 bit instruction with a 32 bit unsigned displacement.
648 * check/ranger.tst, check/ranger.ok: New files, implementing
649 a test case for negative loads and stores. This is range.tst
650 converted to use registers instead of immediate offsets.
652 check/Makefile.am: Update for the new test case.
654 2015-02-07 Paulo Andrade <pcpa@gnu.org>
656 * lib/jit_size.c: Preventively use at least 144 bytes
657 if JIT_INSTR_MAX is less than it. The logic is not
658 guaranteed to be 100% precise, it is mostly heuristics
659 to allocate a buffer with as close as possible size,
660 but a wrong value may cause code generation to write
661 past the end of the buffer.
663 2015-02-03 Paulo Andrade <pcpa@gnu.org>
665 * lib/lightning.c: Correct the reason the bug in
666 simplify_stxi was not triggered before, it was due to
667 incorrectly resetting the value->code field, what was
668 causing it to never properly optimize:
671 when Rb0 == Rb1, Rt0 == Rt1 and Im0 == Im1
672 There was another possible issue, that has been also
673 addressed in this commit, that would be the case of
674 Rbn == Rtn, where no redundancy removal is possible.
676 2015-02-03 Paulo Andrade <pcpa@gnu.org>
678 * lib/lightning.c: Correct wrong check in simplify_stxi.
679 The test was incorrectly comparing the target register
680 and the displacement offset. This was a time bomb bug,
681 that would trigger in code like:
684 if Rb0 == Rb1 && Rt0 == Rt1 && Im0 == Rt1, that is,
685 the wrong check was Im0 == Rt1, instead of the supposed
686 Im0 == Imm1 (that was what the code mean't to do). It
687 was removing the second stxi assuming it was redundantly
688 generated; as that is not uncommon pattern on
689 translators generating jit.
691 2015-02-02 Paulo Andrade <pcpa@gnu.org>
693 * configure.ac, include/lightning/jit_private.h,
694 lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c,
695 lib/jit_disasm.c, lib/jit_hppa.c, lib/jit_ia64.c,
696 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c,
697 lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c: Add a new
698 --enable-devel-disassembler option, that should be used
699 during development, or lightning debug. This option
700 intermixes previous jit_print and jit_disassemble
701 output, making it easier to visualize what lightning
702 call was used, and what code was generated.
704 2015-01-31 Paulo Andrade <pcpa@gnu.org>
706 * lib/jit_arm-cpu.c, lib/jit_arm.c: Only limit to 24 bit
707 displacement non conditional jump in the same jit_state_t.
709 2015-01-19 Paulo Andrade <pcpa@gnu.org>
711 * doc/body.texi: Reorder documentation, making jit_frame
712 and jit_tramp the lightning response to the need of
713 trampolines, continuations and tail call optimizations.
714 A pseudo code example of a factorial function was added.
715 Also added a section for description of the available
718 * doc/fact.c: New file, implementing a simple example of
719 a translation of a trivial, recursive, tail call optimization
720 into lightning calls. This is the conversion to functional C
721 code of the example in doc/body.texi.
723 * doc/Makefile.am: Update for the next test case.
725 2015-01-17 Paulo Andrade <pcpa@gnu.org>
727 * include/lightning.h, lib/jit_aarch64.c,
728 lib/jit_alpha.c, lib/jit_arm-vfp.c, lib/jit_arm.c,
729 lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c,
730 lib/jit_ppc.c, lib/jit_s390.c, lib/jit_sparc.c,
731 lib/jit_x86.c: Add the new jit_arg_register_p predicate.
732 The predicate is expected to be used to know if an
733 argument is in a register, what would need special
734 handling if code that can overwrite non callee save
735 registers is executed.
737 * check/carg.c: New test case to check consistency and
738 expected usage of jit_arg_register_p.
740 * check/Makefile.am: Update for new test case.
742 2015-01-17 Paulo Andrade <pcpa@gnu.org>
744 * include/lightning/jit_aarch64.h,
745 include/lightning/jit_alpha.h,
746 include/lightning/jit_arm.h,
747 include/lightning/jit_hppa.h,
748 include/lightning/jit_mips.h,
749 include/lightning/jit_ppc.h,
750 include/lightning/jit_s390.h,
751 include/lightning/jit_sparc.h,
752 include/lightning/jit_x86.h,
753 lib/jit_aarch64.c, lib/jit_alpha.c,
754 lib/jit_arm.c, lib/jit_hppa.c,
755 lib/jit_ia64.c, lib/jit_mips.c,
756 lib/jit_ppc.c, lib/jit_s390.c,
757 lib/jit_sparc.c, lib/jit_x86.c: Remove jit_arg_reg_p and
758 jit_arg_f_reg_p from a public header, and define it only
759 on port specific files where an integer offset is used
760 to qualify an argument identifier. Exported code expects
761 an opaque pointer (but of jit_node_t* type) to "qualify"
762 an argument identifier.
763 This patch, and the code review/simplification done during
764 it also corrected some bugs:
765 o Inconsistent jit_arg_d value of double argument after 3
766 integer arguments in arm for jit_functions; tested, C
767 functions were being properly called.
768 o Inconsistent use of getarg_{f,d} and putarg*_{f,d} on
769 s390 (32-bit) that happened to not have a proper test
770 case, as it would only happen for jit functions, and
771 tested, called C functions had proper arguments.
772 o Corrected a "last minute" correction that did not go
773 to the committed version, and would not compile on hppa,
774 due to bad _jit_putargi_d prototype definition.
776 2015-01-17 Paulo Andrade <pcpa@gnu.org>
778 * doc/body.texi: Correct wrong/outdated information for
779 hton*, pusharg* and ret*, and add missing documentation
780 for rsb*, qmul*, qdvi* and putarg*.
782 2015-01-15 Paulo Andrade <pcpa@gnu.org>
784 * configure.ac, lib/jit_disasm.c: Rewrite workaround
785 to apparent problem to initialize powerpc disassembler.
787 2015-01-15 Paulo Andrade <pcpa@gnu.org>
789 * include/lightning.h, lib/jit_aarch64.c,
790 lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c,
791 lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c,
792 lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c:
793 Implement jit_putarg*. It works as a mix of jit_getarg*
794 and jit_pusharg*, in the way that the first argument is
795 a register or immediate, and the second is a pointer
796 returned by jit_arg*. The use of the interface is to change
797 values of arguments to the current jit function.
799 * check/put.ok, check/put.tst: New test cases exercising
800 the new jit_putarg* interface.
802 * check/Makefile.am, check/lightning.c: Update for the
803 new test case and interface.
805 2015-01-08 Paulo Andrade <pcpa@gnu.org>
807 * include/lightning/jit_s390.h, lib/jit_s390-cpu.c,
808 lib/jit_s390-fpu.c, lib/jit_s390-sz.c, lib/jit_s390.c:
809 Renamed s390x* files to s390*.
811 * check/float.tst, check/lightning.c, configure.ac,
812 include/lightning.h, include/lightning/Makefile.am,
813 lib/Makefile.am, lib/jit_s390.c, lib/jit_size.c,
814 lib/lightning.c: Update for renamed files.
816 2015-01-08 Paulo Andrade <pcpa@gnu.org>
818 * include/lightning.h, include/lightning/jit_private.h,
819 include/lightning/jit_s390x.h, lib/jit_disasm.c,
820 lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x-sz.c,
821 lib/jit_s390x.c, lib/jit_size.c, lib/lightning.c:
822 Add support for generating jit for s390 32 bit. This change
823 also removed %f15 from the list of temporaries fpr registers;
824 it was not being used, but if were, it would corrupt the
825 stack frame because the spill address would overwrite grp
828 2014-12-26 Paulo Andrade <pcpa@gnu.org>
830 * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Correct some endianess issues
831 on the powerpc le backend.
833 2014-12-26 Paulo Andrade <pcpa@gnu.org>
835 * lib/jit_ppc-cpu.c: Add mcrxr instruction emulation,
836 as this instruction has been phased out, and should be
837 implemented as a kernel trap.
839 2014-12-26 Paulo Andrade <pcpa@gnu.org>
841 * lib/jit_arm.c: Better check for need to flush constants
842 before the pool being no longer reachable.
844 2014-12-25 Paulo Andrade <pcpa@gnu.org>
846 * include/lightning.h: Split jit_htonr in the new 3 interfaces
847 jit_htonr_us, jit_htonr_ui and jit_htonr_ul, the later only
848 available on 64 bit. The plain/untyped jit_htonr macro call
849 maps to the wordsize one.
850 * lib/jit_aarch64-cpu.c, lib/jit_aarch64-sz.c, lib/jit_aarch64.c,
851 lib/jit_alpha-cpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c,
852 lib/jit_arm-cpu.c, lib/jit_arm-sz.c, lib/jit_arm.c,
853 lib/jit_hppa-cpu.c, lib/jit_hppa-sz.c, lib/jit_hppa.c,
854 lib/jit_ia64-cpu.c, lib/jit_ia64-sz.c, lib/jit_ia64.c,
855 lib/jit_mips-cpu.c, lib/jit_mips-sz.c, lib/jit_mips.c,
856 lib/jit_ppc-cpu.c, lib/jit_ppc-sz.c, lib/jit_ppc.c,
857 lib/jit_s390x-cpu.c, lib/jit_s390x-sz.c, lib/jit_s390x.c,
858 lib/jit_sparc-cpu.c, lib/jit_sparc-sz.c, lib/jit_sparc.c,
859 lib/jit_x86-cpu.c, lib/jit_x86-sz.c, lib/jit_x86.c:
860 Update backends for the new jit_htonr*.
861 * check/lightning.c, lib/jit_names.c, lib/lightning.c:
862 Update for the new jit_htonr* interfaces.
863 * check/Makefile.am: Update for new test cases.
864 * check/hton.ok, check/hton.tst: New test cases.
866 2014-12-24 Paulo Andrade <pcpa@gnu.org>
868 * include/lightning/jit_private.h, include/lightning/jit_x86.h,
869 lib/jit_disasm.c, lib/jit_x86-cpu.c, lib/jit_x86-sse.c,
870 lib/jit_x86-sz.c, lib/jit_x86-x87.c, lib/jit_x86.c,
871 size.c: Implement support for the x32 abi. Built and
872 tested on Gentoo default/linux/amd64/13.0/x32 profile.
874 2014-12-24 Paulo Andrade <pcpa@gnu.org>
876 * lib/jit_names.c: Add missing rsbi_f and rsbi_d strings.
878 2014-12-21 Paulo Andrade <pcpa@gnu.org>
880 * lib/jit_arm.c: Call __clear_cache for every page.
881 This should only be required for older boards or
882 toolchain setup, but has been reported to be required
883 for lightning at some point.
885 2014-12-21 Paulo Andrade <pcpa@gnu.org>
887 * lib/jit_arm.c: Correct check to guard overflow of index
888 of constants from program counter.
890 2014-11-24 Paulo Andrade <pcpa@gnu.org>
892 * lib/lightning.c: Remove an optimization to calee save
893 registers that may incorrectly remove a jit_movr under
896 2014-11-20 Paulo Andrade <pcpa@gnu.org>
898 * include/lightning/jit_ppc.h, lib/jit_ppc-cpu.c,
899 lib/jit_ppc.c: Add initial powerpc le support.
901 2014-11-20 Paulo Andrade <pcpa@gnu.org>
903 * lib/jit_disasm.c: Change thumb or arm disassemble based on
904 jit code before disassembly.
906 * lib/jit_arm-cpu.c: Correct reversed arguments to LDRD and
907 STRD instructions, and correct checking for support of those.
909 * lib/jit_arm-swf.c: Correct wrong use of LDRD and STRD and
910 only use those if the register is even.
912 * check/check.arm.swf.sh, check/check.arm4.swf.sh: New files
913 to test LDRD and STRD, as well as the alternate code path
914 when those are not available, in the .arm4. test case.
916 * check/Makefile.am: Update for the new test cases.
918 2014-11-08 Paulo Andrade <pcpa@gnu.org>
920 * include/lightning/jit_private.h, lib/jit_aarch64.c,
921 lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c,
922 lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c,
923 lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c:
924 Implement a private jit_flush call, that flushes
925 the cache, if applicable, aligning down to the
926 previous and up to the next page boundary.
928 2014-11-08 Paulo Andrade <pcpa@gnu.org>
930 * check/ctramp.c: New file. It just repeats the test
931 of tramp.tst, but using two jit_state_t, what should
932 test possible issues with two contexts, and also validate
933 jit_tramp works on backends with function descriptions.
935 * check/Makefile.am: Update for new test case.
937 2014-11-03 Paulo Andrade <pcpa@gnu.org>
939 * include/lightning/jit_mips.h: Do not make the t9 register
940 JIT_R11 (or JIT_R7 for n32 or n64 abi) available. Previously
941 it cause problems if one expects it to not be changed in a
942 function call. For example, calling a jit function, where it
943 really does not need to be changed.
945 2014-10-26 Paulo Andrade <pcpa@gnu.org>
947 * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c,
948 lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c,
949 lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c: Add an
950 assertion to all code generation "drivers" to ensure
951 _jitc->regarg is empty or in an expected state, after
952 translation of a lightning instruction to native code.
953 This change was a brute force test to find out other cases
954 of a temporary not being release (like was happening with
955 _bmsi and _bmci on x86), but no other case was found,
956 after running make check, with assertions enabled, on all
959 2014-10-26 Paulo Andrade <pcpa@gnu.org>
961 * lib/jit_x86-cpu.c: Correct a register allocation leak in
964 2014-10-25 Paulo Andrade <pcpa@gnu.org>
966 * lib/jit_disasm.c: Do not cause an fatal error if init_jit
967 fails in the jit_init_debug call.
969 2014-10-24 Paulo Andrade <pcpa@gnu.org>
971 * lib/jit_ia64.c, lib/jit_ppc.c: Correct handling of function
972 descriptor when first prolog is a jit_tramp prolog. The
973 test case was using the same jit_context_t, so was not
974 triggering this condition.
976 * lib/jit_ppc-cpu.c: Properly handle jump displacements that
977 do not fit on 24 powerpc. This required changing from previous
978 "mtlr reg, blr" to "mtctr reg, bctr" to properly handle
979 the logic to "hide" function descriptors, but that would
980 also be required as the proper jit_jmpr when/if implementing
981 optimizations to leaf functions (was working with blr because
982 it is saved/reloaded in prolog/epilog).
984 2014-10-21 Paulo Andrade <pcpa@gnu.org>
986 * include/lightning.h, lib/lightning.c: Add three predicates
987 to query information about labels. jit_forward_p(label)
988 will return non zero if the label is "forward", that is
989 need a call to jit_link(label), jit_indirect_p(label)
990 that returns non zero if the label was created with the
991 jit_indirect() call, and jit_target_p(label) that will
992 return non zero if there is at least one jump patched
993 to land at that label.
995 2014-10-18 Paulo Andrade <pcpa@gnu.org>
997 * check/range.ok, check/range.tst: New test case designed
998 to catch incorrect code generation, usually due to incorrect
999 test of immediate size. The test checks a large amount of
1000 encodings in "power of two" boundaries. This test exorcises
1001 a significant amount of code paths that was previously not
1004 * check/Makefile.am: Add range test to make check target.
1006 * lib/jit_aarch64-cpu.c: Correct wrong address calculation
1007 for stxi_c, stxi_s, stxi_i and stxi_l when the offset is
1010 * lib/jit_mips-fpu.c: Correct wrong size test to check if
1011 an immediate can be encoded in a float or double store.
1013 * lib/jit_s390x-cpu.c: Correct inverted encoding to stxi_s
1014 when the offset cannot be encoded, and fallbacks to an
1015 alternate encoding in 2 instructions.
1017 2014-10-17 Paulo Andrade <pcpa@gnu.org>
1019 * check/alu_rsb.ok, check/alu_rsb.tst: New files implementing
1022 * check/Makefile.am, check/lightning.c, include/lightning.h,
1023 lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c, lib/jit_aarch64-sz.c,
1024 lib/jit_aarch64.c, lib/jit_alpha-cpu.c, lib/jit_alpha-fpu.c,
1025 lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_arm-cpu.c,
1026 lib/jit_arm-swf.c, lib/jit_arm-sz.c, lib/jit_arm-vfp.c,
1027 lib/jit_arm.c, lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c,
1028 lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-cpu.c,
1029 lib/jit_ia64-fpu.c, lib/jit_ia64-sz.c, lib/jit_ia64.c,
1030 lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips-sz.c,
1031 lib/jit_mips.c, lib/jit_names.c, lib/jit_ppc-cpu.c,
1032 lib/jit_ppc-fpu.c, lib/jit_ppc-sz.c, lib/jit_ppc.c,
1033 lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x-sz.c,
1034 lib/jit_s390x.c, lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c,
1035 lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-cpu.c,
1036 lib/jit_x86-sse.c, lib/jit_x86-sz.c, lib/jit_x86-x87.c,
1037 lib/jit_x86.c, lib/lightning.c: Implement jit_rsb*. This
1038 was a missing lightning 1.x interface, that on most
1039 backends is synthesized, but on a few backends (hppa and ia64),
1040 it can generate better code as on those there is, or the
1041 only instruction with an immediate is in "rsb" format
1044 2014-10-17 Paulo Andrade <pcpa@gnu.org>
1046 * lib/jit_names.c: New file with single definition of string
1047 representation of lightning IR codes.
1049 * size.c: Modified to append the code name in a C comment
1050 after the maximum instruction size.
1052 * lib/jit_print.c: Minor change to not duplicate jit_names.c
1055 * lib/jit_aarch64-sz.c, lib/jit_alpha-sz.c, lib/jit_arm-sz.c,
1056 lib/jit_hppa-sz.c, lib/jit_ia64-sz.c, lib/jit_mips-sz.c,
1057 lib/jit_ppc-sz.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c,
1058 lib/jit_x86-sz.c: Rewritten to add string representation of
1059 IR codes in a C comment.
1061 2014-10-14 Paulo Andrade <pcpa@gnu.org>
1063 * lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c,
1064 lib/jit_hppa-cpu.c, lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c,
1065 lib/jit_sparc-cpu.c: Implement or correct the internal
1066 nop(count) call that receives an argument that tells the
1067 modulo bytes to align the code for the next instruction.
1069 * include/lightning.h, lib/lightning.c, lib/jit_aarch64.c,
1070 lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c,
1071 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c,
1072 lib/jit_x86.c: Implement the new jit_align() call that receive
1073 an argument, that tells the modulo, in bytes, to align the
1074 next instruction. In most backends the only value that makes
1075 a difference is a value that matches sizeof(void*), as all
1076 other values usually are already automatically aligned in
1077 labels, but not guaranteed to be aligned at word size bytes.
1079 * check/align.ok, check/align.tst: New files, implementing
1080 a simple test for the new jit_align() interface.
1082 * check/Makefile.am, check/lightning.c, lib/jit_aarch64-sz.c,
1083 lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c,
1084 lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c,
1085 lib/jit_print.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c,
1086 lib/jit_x86-sz.c: Update for the new jit_code_align code and
1087 the jit_align() interface.
1089 2014-10-13 Paulo Andrade <pcpa@gnu.org>
1091 * include/lightning.h, lib/jit_size.c, size.c: Use a
1092 symbolic value for the last IR code.
1094 2014-10-12 Paulo Andrade <pcpa@gnu.org>
1096 * include/lightning.h, include/lightning/jit_private.h,
1097 lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c,
1098 lib/jit_hppa-cpu.c, lib/jit_ia64-cpu.c, lib/jit_mips-cpu.c,
1099 lib/jit_ppc-cpu.c, lib/jit_s390x-cpu.c, lib/jit_sparc-cpu.c,
1100 lib/jit_x86-cpu.c, lib/lightning.c: Implement the new
1101 jit_frame and jit_tramp interfaces, that allow writing
1102 trampoline like calls, where a single dispatcher jit buffer
1103 is written, and later other jit buffers are created, with
1104 the same stack frame layout as the dispatcher. This is the
1105 logic that GNU Smalltalk used in lightning 1.x, and is required
1106 to make a sane port for lighting 2.x.
1108 * jit_ia64-cpu.c: Implement support for jit_frame and jit_tramp,
1109 and also correct wrong encoding for B4 instructions, that
1110 implement jmpr, as well as correct reverse logic in _jmpr,
1111 that was moving the branch register to the jump register,
1113 Also, if a stack frame is to be assumed, always assume it may
1114 call a function with up to 8 arguments, regardless of the
1115 hint frame argument.
1117 * lib/jit_arm.c: Add a new must_align_p() interface to ensure
1118 function prologs are always aligned. This condition was
1119 previously always true, somewhat by accident, but with
1120 jit_tramp it is not guaranteed.
1122 * jit_ia64-cpu.c: lib/jit_ppc.c: Add minor special handling
1123 required to implement jit_tramp, where a function descriptor
1124 should not be added before a prolog, as jit_tramp means omit
1127 * check/lightning.c: Update test driver for the new interfaces.
1129 * check/Makefile.am, check/tramp.tst, check/tramp.ok: Add
1130 a simple test and example of the jit_frame and jit_tramp
1131 usage implementing a simple Fibonacci function using a
1132 simulation of an interpreter stack and how it would handle
1133 state in language specific variables.
1135 * doc/body.texi: Add documentation for jit_frame and
1138 2014-09-29 Paulo Andrade <pcpa@gnu.org>
1140 * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c,
1141 lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c,
1142 lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c,
1143 lib/jit_x86.c, lib/lightning.c: Allow jit_jmpi on a
1144 target that is not a node. This may lead to hard to
1145 debug code generation, but is a required feature for
1146 certain generators, like the ones that used lightning
1147 1.2x. Note that previously, but not really well
1148 documented, it was instructed to use:
1149 jit_movi(rn, addr); jit_jmpr(rn);
1151 jit_patch_abs(jit_jmpi(), addr);
1154 2014-09-24 Paulo Andrade <pcpa@gnu.org>
1156 * lib/jit_x86-sz.c: Generate information about instruction
1157 lengths for more precise calculation of buffer size on
1158 Windows x64. This change is specially important because
1159 the maximum instruction length is larger than other
1160 systems, what could cause an out of bounds write on
1161 special conditions without this update.
1163 2014-09-24 Paulo Andrade <pcpa@gnu.org>
1165 * check/lightning.c: Add workaround to conflicting global
1166 optind variable in cygwin binutils that have an internal
1167 getopt* implementation.
1169 * lib/jit_x86-cpu.c: Add a simple define ffsl ffs if building
1170 for 32 bit and there is no ffsl function.
1172 2014-09-24 Paulo Andrade <pcpa@gnu.org>
1174 * check/lightning.c: Add a hopefully temporary kludge to not use
1175 sprintf and sscanf returned by dlsym. This is required to pass
1178 * include/lightning/jit_private.h: Use symbolic name for first
1179 integer register argument, as this is different in sysv and
1182 * include/lightning/jit_x86.h: Add conditionals and definitions
1183 for Windows x64 (under __CYGWIN__ preprocessor conditional).
1185 * lib/jit_x86-cpu.c: Correct one instruction encoding bug, that
1186 was working by accident. Only use rax to rdx for some byte
1187 operations to work on compatibility mode (that is, to generate
1188 the proper encoding, instead of actually generating encoding
1189 for high byte registers, e.g. %bh).
1190 Add proper prolog and epilog for windows x64.
1192 * lib/jit_x86-sse.c: Correct a swapped rex prefix for float
1195 * lib/jit_x86.c: Adjust to support Windows x64 abi.
1197 * check/check.x87.nodata.sh: New file, previously used but that
1200 2014-09-07 Paulo Andrade <pcpa@gnu.org>
1202 * lib/lightning.c: Mark all registers advertised as live, as
1203 per jit_callee_save_p as live whenever reaching a jump that
1204 cannot be tracked. This is a rethink of the previous commit,
1205 and is a better approach, otherwise there would not be much
1206 sense on relying on jit_callee_save_p if it could not be
1209 * check/jmpr.tst, check/jmpr.ok: New files implementing a very
1210 simple test case, that would actually cause an assertion on
1211 code before the change to only mark as live when reaching a
1212 jump that could not tracked, the actually advertised as callee
1215 check/Makefile.am: Update for new jmpr test case.
1217 2014-09-01 Paulo Andrade <pcpa@gnu.org>
1219 * lib/lightning.c: Do not mark all registers in unknown state
1220 as live on jit_jmpr, or jit_jmpi to an absolute address. Instead,
1221 treat it as a function call, and only consider JIT_Vn registers
1224 2014-08-29 Paulo Andrade <pcpa@gnu.org>
1226 * doc/body.texi: Add a proper info menu entry for
1229 * doc/version.texi: Regenerate.
1231 2014-08-16 Paulo Andrade <pcpa@gnu.org>
1233 * lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c,
1234 lib/jit_arm-cpu.c, lib/jit_arm-vfp.c,
1235 lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c,
1236 lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c,
1237 lib/jit_mips-cpu.c, lib/jit_mips-fpu.c,
1238 lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c,
1239 lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c,
1240 lib/jit_s390x.c, lib/jit_sparc-cpu.c,
1241 lib/jit_x86-cpu.c, lib/jit_x86-sse.c,
1242 lib/jit_x86-x87.c: Review generation of all branch
1243 instructions and always adds the jit_class_nospill
1244 bitfield for temporary registers that cannot be spilled
1245 because the reload would be after a conditional jump; the
1246 patch only adds an extra assertion. These conditions do
1247 not happen on documented lightning usage, but can happen
1248 if one uses the not exported jit_get_reg and jit_unget_reg
1249 calls and cause enough register starvation.
1251 2014-08-16 Paulo Andrade <pcpa@gnu.org>
1253 * lib/jit_alpha.c: Correct wrong bitmask of most argument
1254 float register arguments, that were being set as callee
1255 save instead of argument registers class.
1257 2014-08-16 Paulo Andrade <pcpa@gnu.org>
1259 * lib/jit_arm-sz.c: Regenerate table of known maximum
1260 instruction sizes for the software float fallback,
1261 that implements "virtual" float registers in the stack
1262 and operations as calls to libgcc.
1264 * size.c: Correct typo in the generated jit_arm-sz.c file.
1266 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1268 * include/lightning/jit_alpha.h, lib/jit_alpha-cpu.c,
1269 lib/jit_alpha-fpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c:
1270 New files implementing a lightning Alpha port. Thanks
1271 to Trent Nelson and snakebit.net staff for providing access
1274 * check/float.tst, check/lightning.c, configure.ac,
1275 include/lightning.h, include/lightning/Makefile.am,
1276 include/lightning/jit_private.h, lib/Makefile.am,
1277 lib/jit_disasm.c, lib/jit_size.c, lib/lightning.c:
1278 Minor changes to adapt for the new Alpha port.
1280 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1282 * lib/lightning.c: Always mark JIT_RET and JIT_FRET as
1283 live in a function epilog. This is required because
1284 on some ports a complex sequence, allocating one or more
1285 registers, may be required to jump from a ret* to the
1286 epilog, and the lightning api does not have annotations
1287 to know if a function returns a value, or the type of
1290 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1292 * lib/lightning.c: Change the correct live bitmask of
1293 return registers after a function call in jit_update.
1295 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1297 * lib/lightning.c: Change assertions to have an int
1298 result and correct a bad bit mask assertion.
1300 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1302 * lib/jit_aarch64.c: Correct bad setup for assertion
1303 of consistency before a patch.
1305 2014-08-10 Paulo Andrade <pcpa@gnu.org>
1307 * lib/jit_mips-cpu.c: Correct typo in the jit_bmsr
1308 implementation that was using the wrong test result
1311 2014-07-28 Paulo Andrade <pcpa@gnu.org>
1313 * lib/jit_memory.c: Do not call free on NULL pointers.
1315 * include/lightning/jit_private.h, lib/jit_note.c,
1316 lib/lightning.c: Add a wrapper to memcpy and memmove
1317 to not actually call those functions with a zero size
1318 argument, and likely also a null src or dst.
1320 2014-07-27 Paulo Andrade <pcpa@gnu.org>
1322 * include/lightning/jit_private.h, lib/jit_disasm.c,
1323 lib/lightning.c: Remove the global jit_progname variable.
1324 It was being only used in jit_init_debug, that is called
1325 from init_jit, so, just pass an argument.
1327 2014-07-27 Paulo Andrade <pcpa@gnu.org>
1329 * doc/body.texi: Add note that jit_set_memory_functions
1330 should be called before init_jit, because init_jit
1331 itself may call the memory wrappers.
1333 2014-04-22 Paulo Andrade <pcpa@gnu.org>
1335 * lib/jit_arm.c: Do not get confused with default settings
1336 if /proc is not mounted on Linux specific code path.
1338 2014-04-09 Paulo Andrade <pcpa@gnu.org>
1340 * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h,
1341 include/lightning/jit_hppa.h, include/lightning/jit_ia64.h,
1342 include/lightning/jit_mips.h, include/lightning/jit_ppc.h,
1343 include/lightning/jit_private.h, include/lightning/jit_s390x.h,
1344 include/lightning/jit_sparc.h, include/lightning/jit_x86.h:
1345 Do not add jit_regset_t, JIT_RA0, and JIT_FA0 to the installed
1346 header file. These types and definitions are supposed to be
1347 only used internally.
1349 2014-04-05 Paulo Andrade <pcpa@gnu.org>
1351 * lib/jit_arm-cpu.c: Only adjust stack pointer in prolog if
1352 need stack space, that is, do not emit a nop instruction
1353 subtracting zero from the stack pointer.
1355 2014-04-04 Paulo Andrade <pcpa@gnu.org>
1357 * lib/jit_disasm.c: Correct a crash in the doc/printf example
1358 on arm due to releasing the data_info information in
1359 jit_clear_state. This is a special case for arm only, and
1360 actually, only armv5 or older uses the data_info buffer,
1361 or when forcing arm instruction set mode besides thumb
1364 2014-12-03 Paulo Andrade <pcpa@gnu.org>
1366 * doc/body.texi: Write detailed description and examples for
1367 jit_get_memory_functions, jit_set_memory_functions,
1368 jit_get_code, jit_set_code, jit_get_data and jit_set_data.
1370 2014-12-03 Paulo Andrade <pcpa@gnu.org>
1372 * include/lightning.h, include/lightning/jit_private.h,
1373 lib/lightning.c: Implement the new jit_set_data() interface,
1374 and the new jit_get_data() helper. Like jit_set_code(),
1375 jit_realize() should be called before jit_set_data().
1376 The most common usage should be jit_set_data(JIT_DISABLE_DATA
1377 | JIT_DISABLE_NOTE), to force synthesize any float/double
1378 constant in the stack and not generate any debug information.
1380 * lib/jit_note.c: Minor change to debug note generation as
1381 now it uses an alternate temporary data buffer during constants
1382 and debug generation to accommodate the possibility of the user
1383 setting an alternate data buffer.
1385 * lib/jit_hppa-fpu.c, lib/jit_s390x.c, lib/jit_s390x-cpu.c,
1386 lib/jit_s390x-fpu.c, lib/jit_sparc.c, lib/jit_sparc-fpu.c,
1387 lib/jit_x86-sse.c, lib/jit_x86-x87.c: Implement jit_set_data.
1389 * lib/jit_hppa-sz.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c,
1390 lib/jit_s390x-sz.c: Update for several instructions that now
1391 have a different maximum length due to jit_set_data.
1393 * lib/jit_mips-fpu.c: Implement jit_set_data, but missing
1394 validation on n32 and n64 abis (and/or big endian).
1396 * lib/jit_mips-sz.c: Update for changes in o32.
1398 * lib/jit_ppc-fpu.c: Implement jit_set_data, but missing
1399 validation on Darwin PPC.
1401 * lib/jit_ppc-sz.c: Update for changes in powerpc 32 and
1404 * lib/jit_ia64-fpu.c: Implement untested jit_set_data.
1406 * TODO: Add note to list ports that were not tested for the
1407 new jit_set_data() feature, due to no longer having access
1410 * check/nodata.c: New file implementing a simple test exercising
1411 several different conditions created by jit_set_data().
1413 * check/check.nodata.sh: New file implementing a wrapper
1414 over the existing *.tst files, that runs all tests without
1415 using a data buffer for constants; only meaningful (and
1416 enabled) on architectures that used to store float/double
1417 constants on a read only data buffer.
1419 * configure.ac, check/Makefile.am: Update for the new test
1422 * check/lightning.c: Implement the new "-d" option that
1423 sets an internal flag to call jit_set_data() disable
1424 constants and debug, that is, using only a pure code
1427 2014-11-03 Paulo Andrade <pcpa@gnu.org>
1429 * include/lightning.h, include/lightning/jit_private.h,
1430 lib/lightning.c: Implement the new jit_set_code() interface,
1431 that allows instructing lightning to use an alternate code
1432 buffer. The new jit_realize() function should be called
1433 before jit_set_code(), and usually call jit_get_code()
1434 to query the amount of bytes expected to be required for
1437 * lib/jit_size.c: Minor update to have less chances of
1438 miscalculating the code buffer by starting the counter
1439 with the size of the longest instruction instead of zero,
1440 as code emit fails if at any moment less than the longest
1441 instruction bytes are available.
1443 * check/setcode.c: New file implementing some basic tests
1444 of the new jit_set_code() interface.
1446 * check/Makefile.am: Update for newer test case.
1448 2014-06-03 Paulo Andrade <pcpa@gnu.org>
1450 * include/lightning.h, lib/lightning.c: Add the new
1451 jit_indirect() call, that returns a special label node,
1452 and tells lightning that the label may be the target of
1455 * doc/body.texi: Document the new jit_indirect() call, and
1456 add examples of different ways to create labels and branches.
1458 2014-23-02 Paulo Andrade <pcpa@gnu.org>
1460 * lib/jit_x86.c: Rewrite previous patch to inline save/restore
1461 because clobbering %ebx in x86 is treated as an error
1462 (jit_x86.c:239:5: error: PIC register clobbered by 'ebx' in 'asm').
1464 2014-19-02 Paulo Andrade <pcpa@gnu.org>
1466 * lib/jit_x86.c: Rewrite incorrect inline assembly that could
1467 truncate a variable in a callee save register. Now it simply
1468 tells gcc that the register is clobbered, instead of using a
1469 *32 bit* swap with a temporary variable. The problem only
1470 happens when compiling with optimization.
1472 2014-19-02 Paulo Andrade <pcpa@gnu.org>
1474 * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h,
1475 include/lightning/jit_hppa.h, include/lightning/jit_ia64.h,
1476 include/lightning/jit_mips.h, include/lightning/jit_ppc.h,
1477 include/lightning/jit_s390x.h, include/lightning/jit_sparc.h,
1478 include/lightning/jit_x86.h: Change jit_regset_t to an
1479 unsigned type, to allow safe right shift.
1481 * lib/lightning.c: Rewrite jit_regset_scan1 to allow easier
1482 compiler optimization.
1484 2013-12-03 Paulo Andrade <pcpa@gnu.org>
1486 * lib/jit_x86-x87.c: Correct wrong optimization when
1487 loading the log(2) constant.
1489 2013-12-03 Paulo Andrade <pcpa@gnu.org>
1491 * lib/jit_x86-cpu.c: Use the emms instruction before
1492 calling any function. This is particularly important
1493 when using c99 complex functions as it can easily
1494 overflow the x87 stack due to the way lightning uses
1495 the x87 stack as a flat register file.
1497 2013-12-02 Paulo Andrade <pcpa@gnu.org>
1499 * lib/jit_x86-x87.c: Correct wrong code generation due
1500 to comparing the base and not the value register with
1503 2013-12-02 Paulo Andrade <pcpa@gnu.org>
1505 * lib/jit_x86-x87.c, lib/jit_x86.c: Use 8 bytes aligned
1506 stack offset for float/double x87 to/from sse move.
1508 2013-11-27 Paulo Andrade <pcpa@gnu.org>
1510 * configure.ac, lib/jit_arm-swf.c, lib/jit_arm.c: Add
1511 changes that should at least allow building lightning
1514 2013-10-08 Paulo Andrade <pcpa@gnu.org>
1516 * lib/jit_ppc-cpu.c: Correct wrong shortcut for ldxi_l with
1517 a zero offset, that was calling ldr_i instead of ldr_l.
1519 2013-10-08 Paulo Andrade <pcpa@gnu.org>
1521 * include/lightning/jit_arm.h, lib/jit_arm-cpu.c: Do not use
1522 by default load/store instructions that map to ldrt/strt.
1523 There is already the long displacement version for positive
1524 offsets, and when using a (shorter) negative offset it does
1525 not map to ldrt/strt. At least on qemu strt may cause
1526 reproducible, but unexpected SIGILL.
1528 2013-10-08 Paulo Andrade <pcpa@gnu.org>
1530 * lib/jit_arm-vfp.c: Correct wrong load/store offset
1531 calculation when the displacement is constant but too
1532 large to use an instruction with an immediate offset.
1534 2013-10-07 Paulo Andrade <pcpa@gnu.org>
1536 * check/self.c: Extend tests to validate jit_callee_save_p
1537 does not cause an assertion on valid arguments, and test
1538 extra registers defined on some backends.
1540 * configure.ac: Do not ignore environment CFLAGS when
1541 checking if need to test runtime configurable options,
1542 like use x87 when sse2 is available, arm instruction set
1543 instead of thumb, etc.
1545 * include/lightning/jit_arm.h: Correct wrong jit_f macro
1548 * include/lightning/jit_ia64.h, include/lightning/jit_ppc.h:
1549 Correct wrong jit_r macro definition.
1551 * lib/jit_x86-x87.c, lib/jit_x86.c: Actually use the
1552 reserved stack space for integer to/from float conversion.
1553 The stack space was also changed to ensure it is 8 bytes
1554 aligned. Also, for Solaris x86 in 32 bit mode, an alternate
1555 truncr_d was implemented because for some reason it is
1556 failing with SIGILL if using the "fisttpl" instructions,
1557 that must be available on p6 or newer, but for the sake of
1558 making all tests pass, implement a 486 or newer sequence
1559 if "sun" is defined.
1561 2013-10-03 Paulo Andrade <pcpa@gnu.org>
1563 * include/lightning/jit_mips.h, lib/jit_mips-cpu.c,
1564 lib/jit_mips-sz.c, lib/jit_mips.c, size: Build and
1565 pass all test cases on Irix big endian mips using
1568 2013-10-02 Paulo Andrade <pcpa@gnu.org>
1570 * include/lightning/jit_mips.h: Add proper mips abi detection.
1572 2013-09-30 Paulo Andrade <pcpa@gnu.org>
1574 * lib/jit_print.c: Do not crash if calling jit_print from
1575 gdb before actually emitting code.
1577 * lib/lightning.c: Correct misplaced check for already
1578 visited blocks on conditional branches, what was preventing
1579 proper merge live bit masks of forward blocks.
1581 2013-09-30 Paulo Andrade <pcpa@gnu.org>
1583 * lib/jit_x86-cpu.c: Correct not properly tested case of using
1584 %r12 as index register, what was causing an invalid assertion.
1585 %r12 is mapped to the "extra" JIT_R3 register, and test cases
1586 only test "standard" lightning registers.
1588 2013-09-28 Paulo Andrade <pcpa@gnu.org>
1590 * lib/jit_ia64.c: Minor change to force collecting the maximum
1591 instruction length in the --enable-devel-get-jit-size build
1592 mode. The actual generated file did not change because the
1593 sampling was large enough that it had already collected proper
1594 information in the previously slightly buggy code (not forcing
1595 a sync of the instructions that could be combined).
1597 2013-09-27 Paulo Andrade <pcpa@gnu.org>
1599 * lib/jit_arm.c: Correct build when disassembler is
1602 2013-09-25 Paulo Andrade <pcpa@gnu.org>
1604 * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c: Correct some
1605 off by one range checks (that were only accepting values
1606 one less than the maximum allowed) and an invalid test
1607 condition check that was forcing it to always use
1608 indirect jumps even when reachable with an immediate
1611 2013-09-24 Paulo Andrade <pcpa@gnu.org>
1613 * lib/jit_aarch64-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c,
1614 lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c,
1615 lib/jit_s390x-sz.c, lib/jit_size.c, lib/jit_sparc-sz.c,
1616 lib/jit_x86-sz.c: New files implementing static tables
1617 with longest known instructions length generated to match
1618 a lightning instruction. These tables should make it easier
1619 to make it very unlikely to ever miscalculate, or by too
1620 much, the size of a code buffer.
1622 * lib/jit_size.c: New file that aids to either collect
1623 jit code size information, or use the information depending
1626 * size.c: New helper file that parses input for, and create
1627 an initial jit_$arch-sz.c file, that needs some minor edit
1628 for arches with multiple configurations.
1630 * configure.ac, Makefile.am: Add the new, devel mode only
1631 --enable-devel-get-jit-size configure option, that sets
1632 compile time flags to collect jit code size information,
1633 that will be used as input for the "noinst size program".
1635 * lib/jit_aarch64.c, lib/jit_arm.c, lib/jit_disasm.c,
1636 lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_memory.c,
1637 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c,
1638 lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c: Minor
1639 changes for the --enable-devel-get-jit-size build mode,
1640 as well as the "production build mode" with jit code
1643 2013-09-14 Paulo Andrade <pcpa@gnu.org>
1645 * include/lightning.h, lib/lightning.c: Add the new
1646 jit_pointer_p interface, that returns a boolean value
1647 telling if the pointer argument is inside the jit
1648 code buffer. This is useful to avoid the need to add
1649 extra labels and calls to jit_address to figure bounds
1650 of code buffer, and still keep internal data private.
1652 2013-09-13 Paulo Andrade <pcpa@gnu.org>
1654 * include/lightning.h, include/lightning/jit_private.h,
1655 lib/jit_note.c: Change the code argument of jit_get_note
1656 to a jit_pointer_t and make jit_get_note a public interface.
1657 It was intended so since start, as a way to map an offset
1658 in the code to a function name, file name and line number
1661 2013-09-11 Paulo Andrade <pcpa@gnu.org>
1663 * doc/body.texi: Correct reversed arguments in example of
1664 usage in a (possibly) multi threaded, multiple jit_state_t
1667 * include/lightning/jit_arm.h, include/lightning/jit_private.h,
1668 lib/jit_arm-cpu.c, lib/jit_arm.c: Make a previously, non
1669 documented, global state private to the related jit_state_t
1672 2013-09-10 Paulo Andrade <pcpa@gnu.org>
1674 * check/self.c, check/self.ok: New files implementing simple
1675 consistency check assertions. At first validating some macros
1676 that use values from different sources agree.
1678 * check/Makefile.am: Update for the new test case.
1680 * include/lightning.h, lib/lightning.c: Add the new
1681 jit_callee_save_p() call, that is intended to be used when
1682 writing complex code using lightning, so that one does not
1683 need to verify what backend is being used, or have access to
1684 private data, to query if a register is callee save or not;
1685 on several backends the scratch registers are actually callee
1688 * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h,
1689 include/lightning/jit_hppa.h, include/lightning/jit_mips.h,
1690 include/lightning/jit_ppc.h, include/lightning/jit_sparc.h,
1691 include/lightning/jit_x86.h: Add an explicit definition for
1692 JIT_R3-JIT_Rn, JIT_V3-JIT_Vn and JIT_F6-JIT_Fn when applicable.
1693 This allows one to write code based on "#if defined(JIT_XN)"
1694 and therefore, not need to check what is the current backend
1695 or have access to private data structures. This is particularly
1696 useful when writing virtual machines with several specialized,
1699 * lib/jit_ia64.c: Properly flag the callee save general
1700 purpose registers as such, so that jit_callee_save_p() works
1703 2013-09-10 Paulo Andrade <pcpa@gnu.org>
1705 * check/lightning.c, configure.ac: Conditionally use the
1706 code written to workaround a bug in the Hercules emulator,
1707 as isnan and isinf are not available at least on HP-UX ia64.
1709 2013-09-10 Paulo Andrade <pcpa@gnu.org>
1711 * lib/jit_s390x-cpu.c: Spill/reload correct callee save
1714 2013-09-10 Paulo Andrade <pcpa@gnu.org>
1716 * lib/jit_hppa-cpu.c: Correct code to call a function stored
1717 in a register or a patched function address.
1719 2013-09-10 Paulo Andrade <pcpa@gnu.org>
1721 * lib/jit_ia64-cpu.c: Correct incorrect logic when restoring
1722 the value of the "r2" callee save register.
1724 2013-08-29 Paulo Andrade <pcpa@gnu.org>
1726 * lib/jit_arm-cpu.c, lib/jit_arm.c: Correct wrong test and update
1727 of the thumb offset information, when checking if needing to
1728 patch a jump from arm to thumb mode. The problem would happen when
1729 remapping the code buffer, and the new address being lower than
1732 2013-08-26 Paulo Andrade <pcpa@gnu.org>
1734 * configure.ac: Extend FreeBSD test to also handle NetBSD.
1736 * lib/jit_x86-cpu.c: Correct wrongly defined offset type of
1737 ldxi_ui. Problem detected when building on NetBSD.
1739 * lib/lightning.c: Adjust code to handle NetBSD mremap,
1740 where arguments do not match Linux mremap.
1742 2013-08-26 Paulo Andrade <pcpa@gnu.org>
1744 * lib/jit_ppc.c: Correct C sequence point problem miscalculating
1745 the actual function address in a function descriptor. Problem
1746 happens with gcc 4.8.1 at least.
1748 2013-08-11 Paulo Andrade <pcpa@gnu.org>
1750 * lib/jit_s390x-cpu.c: Correct code checking if immediate
1751 fits instruction, but using the negated value.
1753 2013-07-28 Paulo Andrade <pcpa@gnu.org>
1755 * include/lightning/jit_s390x.h, lib/jit_s390x-cpu.c,
1756 lib/jit_s390x-fpu.c, lib/jit_s390x.c: New files
1757 implementing the new s390x port.
1759 * configure.ac, include/lightning.h,
1760 include/lightning/Makefile.am,
1761 include/lightning/jit_private.h,
1762 lib/Makefile.am, lib/jit_disasm.c, lib/lightning.c:
1763 Minor adaptation for the new s390x backend.
1765 * check/float.tst: Update for the s390x result of
1766 truncating +Inf to integer.
1768 * check/qalu_mul.tst: Add extra test cases to better test
1769 high word of signed multiplication as the result is
1770 adjust from unsigned multiplication on s390x.
1772 2013-07-28 Paulo Andrade <pcpa@gnu.org>
1774 * check/lightning.c: Do not assume casting a double NaN or
1775 Inf to float will produce the expected float NaN or Inf.
1776 This is not true at least under s390x.
1778 2013-07-28 Paulo Andrade <pcpa@gnu.org>
1780 * check/check.arm.sh, check/check.sh, check/check.swf.sh,
1781 check/check.x87.sh: Properly check test programs output,
1782 not just rely on the test program self testing the results
1785 2013-07-28 Paulo Andrade <pcpa@gnu.org>
1787 * lib/jit_aarch64.c: Remove unused macros left from cut&paste
1790 2013-07-16 Paulo Andrade <pcpa@gnu.org>
1792 * include/lightning/jit_aarch64.h, lib/jit_aarch64-cpu.c,
1793 lib/jit_aarch64-fpu.c, lib/jit_aarch64.c: New files
1794 implementing the new aarch64 port, as a new architecture,
1795 not as an expansion of the existing armv[4-7] port.
1797 * check/lightning.c: Add aarch64 support and a small
1798 change to recognize character constants as immediate
1801 * check/float.tst: Add aarch64 preprocessor conditionals
1802 to select proper expected value when converting [+-]Inf
1805 * include/lightning/jit_arm.h, lib/jit_arm.c: Minor changes
1806 to better match the new aarch64 files.
1808 * configure.ac, include/lightning.h,
1809 include/lightning/Makefile.am, include/lightning/jit_private.h,
1810 lib/Makefile.am, lib/lightning.c: Minor adjustments
1811 for the aarch64 port.
1813 2013-07-08 Paulo Andrade <pcpa@gnu.org>
1815 * NEWS, THANKS, configure.ac, doc/version.texi: Update for
1816 the 1.99a second alpha release.
1818 2013-06-25 Paulo Andrade <pcpa@gnu.org>
1820 * lib/jit_mips.c: Correct cut&paste error that caused wrong
1821 stack offset calculation for double arguments in stack in
1823 Correct typo in the __LITTLE_ENDIAN macro name, that came
1824 from cut&paste error in the original typo in lib/jit_ppc.c.
1826 * lib/jit_ia64.c, lib/jit_ppc.c: Correct typo in the
1827 __LITTLE_ENDIAN macro name.
1829 2013-06-22 Paulo Andrade <pcpa@gnu.org>
1831 * check/lightning.c, configure.ac, include/lightning.h,
1832 lib/lightning.c: Add tests and quirks to build/detect
1833 and/or work on Irix.
1835 * include/lightning/jit_mips.h, lib/jit_mips-cpu.c,
1836 lib/jit_mips-fpu.c, lib/jit_mips.c: Adapt code to run
1837 in big endian mips, using the n32 abi.
1839 2013-06-18 Paulo Andrade <pcpa@gnu.org>
1841 * include/lightning.h: Minor extra preprocessor testing
1842 to "detect" byte order on x86 solaris, that now builds
1843 and pass all test cases.
1845 2013-06-18 Paulo Andrade <pcpa@gnu.org>
1847 * lib/jit_sparc-cpu.c: Correct compiler warning of value
1848 used before assignment. The usage is bogus as the api
1849 requires always patching jumps, but the random value used
1850 could cause an assertion due to invalid displacement.
1852 * lib/jit_sparc.c: Always load and store double arguments
1853 in stack as 2 float loads or stores, for safety, as unaligned
1854 access is not allowed in Sparc Solaris.
1856 2013-06-14 Paulo Andrade <pcpa@gnu.org>
1858 * configure.ac: Force -mlp64 to CFLAGS on HP-UX ia64 port.
1859 It is the only supported mode, and expects gcc as C compiler.
1861 * include/lightning.h, lib/jit_ia64-cpu.c, lib/jit_ia64.c:
1862 Correct ia64 port to work on HP-UX that runs it in big endian
1865 2013-06-10 Paulo Andrade <pcpa@gnu.org>
1867 * lib/jit_hppa.c: Sanitize the cache synchronization inline
1868 assembly code that was doing twice the work and redundantly
1869 flushing the end address every loop iteration.
1871 2013-06-09 Paulo Andrade <pcpa@gnu.org>
1873 * configure.ac, check/Makefile.am, doc/Makefile.am: Do not
1874 explicitly link to -ldl, but instead autodetect the library
1875 with dlopen, dlsym, etc.
1877 * check/lightning.c: Add workaround to apparently buggy
1878 getopt in HP-UX that sets optind to the wrong index, and
1879 use RTLD_NEXT on HP-UX instead of RTLD_DEFAULT to dlsym
1882 * include/lightning.h: Rework definitions of wordsize and
1883 byte order to detect proper values on HP-UX.
1885 * lib/lightning.c: Minor correction to use MAP_ANONYMOUS
1886 instead of MAP_ANON on HP-UX.
1888 * lib/jit_hppa.c: Float arguments must be passed on integer
1889 registers on HP-UX, not only for varargs functions.
1890 Add code to properly clear instruction cache. This was
1891 not required on Debian hppa port, but may have been working
1894 * lib/jit_hppa-cpu.c: Follow pattern of HP-UX binaries and
1895 use bve,n instead of bv,n to return from functions.
1897 * lib/jit_hppa-fpu.c: For some reason "fst? frX,rX,(rY)" did
1898 not work on the tested computer (HP-UX B.11.23 U 9000/785 HP-UX)
1899 so the code was changed, at first for __hpux only to add the
1900 base and offset register and use the instruction with an
1901 immediate (zero) offset.
1903 2013-06-07 Paulo Andrade <pcpa@gnu.org>
1905 * check/lightning.c, lib/jit_disasm.c, lib/jit_ppc-cpu.c,
1906 lib/jit_ppc-fpu.c, lib/jit_ppc.c, include/lightning.h,
1907 include/lightning/jit_ppc.h, include/lightning/jit_private.h:
1908 Adapt code to work on 32 bit AIX ppc using gcc. Most changes
1909 are basically to adapt the elf64 logic to 32 bit, as it does
1910 not use the same convention of 32 bit Darwin ppc.
1912 * check/stack.tst: Add a fake memcpy function to the test
1913 case if running under AIX, as it is not available to dlsym.
1915 * configure.ac: Check for getopt.h header, not available in
1918 2013-06-01 Paulo Andrade <pcpa@gnu.org>
1920 * include/lightning/jit_hppa.h, lib/jit_hppa-cpu.c,
1921 lib/jit_hppa-fpu.c, lib/jit_hppa.c: New files implementing
1922 the hppa port. Built on Debian Linux PA-RISC 2.0, 32 bit.
1924 * check/float.tst: Add preprocessor for hppa expected
1925 values when converting NaN and +-Inf to an integer.
1927 * check/ldst.inc: Ensure double load/store tests use an
1928 8 byte aligned address by default.
1930 * lib/lightning.c: Correct a bug found during tests in
1931 the new port, where qmul* and qdiv* were not properly
1932 setting one of the result registers as modified in the
1933 function, what would be a problem if the only "write"
1934 usage were the qmul* or qdiv*.
1936 * check/varargs.tst, check/varargs.ok: Add one extra
1937 interleaved integer/double test to validate proper code
1938 generation in the extra case.
1940 * check/lightning.c, configure.ac, include/lightning.h,
1941 include/lightning/Makefile.am,
1942 include/lightning/jit_private.h, lib/Makefile.am,
1943 lib/jit_disasm.c: Update for the hppa port.
1945 2013-04-27 Paulo Andrade <pcpa@gnu.org>
1947 * check/varargs.tst: Correct misplaced .align directive
1948 that was causing the double buffer to not be aligned at
1950 * lib/jit_ia64-cpu.c:
1951 Properly implement abi for excess arguments passed on
1953 Simplify load/store with immediate displacement argument
1955 Simplify some calls to "subi" changing to "addi" with
1956 a negative argument.
1957 Remove some #if 0'ed code, that could be useful in
1958 special conditions, but the most useful one would be
1959 to "optimize" "static" jit functions, but for the sake
1960 of simplicity, jit functions are implemented in a way
1961 that can be passed back to C code as C function pointers.
1962 Add an attribute to prototypes of several unused functions.
1963 These functions are defined for the sake of implementing all
1964 Itanium documented instructions, but a significant amount of
1965 them is not used by lightning.
1966 * lib/jit_ia64-fpu.c: Simplify load/store with zero immediate
1967 displacement and add unused attribute for functions not used
1968 by lightning, but required to provide macros implementing all
1969 Itanium documented instructions.
1970 * lib/jit_ia64.c: Update for the properly implemented abi
1971 for stack arguments.
1972 * lib/lightning.c: Mark an unused function as such.
1974 2013-04-27 Paulo Andrade <pcpa@gnu.org>
1977 Correct immediate range check of integer comparisons when
1978 inverting arguments.
1979 Correct gei_u that was not decrementing immediate when
1980 inverting arguments.
1981 Correct b?add* and b?sub* that were not properly updating
1982 the result register.
1984 2013-04-27 Paulo Andrade <pcpa@gnu.org>
1986 * lib/jit_ia64-cpu.c: Correct wrong mapping of 2 instructions
1987 in "M-, stop, M-, stop" translation, that was ignoring the
1988 last stop (implemented as a nop I- stop).
1990 * lib/jit_ia64-fpu.c: Properly implement fnorm.s and fnorm.d,
1991 as well as the proper integer to float or double conversion.
1993 2013-04-27 Paulo Andrade <pcpa@gnu.org>
1995 * lib/jit_ia64-cpu.c: Correct bogus implementation of ldr_T
1996 for signed integers, that was using ld1.s, ld2.s and ld4.s.
1997 The ".s" stands for speculative load, not sign extend.
1999 * lib/jit_ia64-fpu.c: Correct bogus implementation of ldxr_T
2000 for float and double. The third (actually, second) argument
2001 is indeed added to the base register, but the base register
2002 is modified. The actual M7 implementation was already correct,
2003 just the ldxr_f and ldxr_d implementation that was kept in
2004 a prototype state, misinterpreting what M7 does.
2006 2013-04-27 Paulo Andrade <pcpa@gnu.org>
2008 * lib/jit_ia64-cpu.c: Correct X2 pattern matching by preventing
2009 it to attempt to require a stop between the L and the X
2010 instruction; that is, check the registers and predicates
2011 before emitting the L instruction, not after.
2013 * lib/jit_ia64-fpu.c: Slightly simplify and correct
2014 divr_f and divrd_d implementation.
2016 * check/lightning.c: Add __ia64__ preprocessor define
2019 * check/alu.inc, check/clobber.tst, check/float.tst: Define
2020 several macros conditionally to __ia64__. This is required
2021 because __ia64__ jit generation can use way too many memory,
2022 due to not implementing instruction reordering to avoid
2023 as much as possible "stops", what causes way too many nops
2024 to be generated, as well as the fact that division and
2025 remainder requires function calls, and float division
2026 requires significant code to implement.
2028 2013-04-27 Paulo Andrade <pcpa@gnu.org>
2030 * include/lightning.h: Add new backend specific movr_w_d,
2031 movr_d_w and movi_d_w codes as helpers to ia64 varargs
2032 functions arguments.
2034 * lib/jit_ia64-cpu.c:
2035 Correct wrong encoding of A5 small integers.
2036 Correct define of "mux" instruction modifiers.
2037 Correct ordering of arguments and predicates of cmp_xy
2038 implementation with immediate arguments; like most other
2039 codes with an immediate, the immediate is the second, not
2042 * lib/jit_ia64-fpu.c: Actual implementation of the code
2043 to move to/from gpr to/from fpr, to implement varargs abi.
2045 * lib/jit_ia64.c: Make fpr argument registers not allocatable
2046 as temporaries, no need for the extra checks when there are
2049 * lib/jit_print.c, lib/lightning.c: Minor updates for the
2050 new movr_w_d, movr_d_w and movi_d_w codes.
2052 2013-04-26 Paulo Andrade <pcpa@gnu.org>
2054 * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c: Correct code to
2055 also insert a stop to break an instruction group if a
2056 register is written more than once in the same group.
2057 This may happen if a register is argument and result of
2058 some lightning call (not a real instruction). The most
2059 common case should be code in the pattern:
2063 where "rn" would end up holding "largenum".
2064 But the problem possibly could happen in other circumstances.
2066 2013-04-26 Paulo Andrade <pcpa@gnu.org>
2068 * include/lightning/jit_ia64.h, lib/jit_ia64-cpu.c,
2069 lib/jit_ia64-fpu.c, lib/jit_ia64.c:
2070 Relocate JIT_Rn registers to the local registers, as, like
2071 float registers, div/rem and sqrt are implemented as function
2072 calls, and may overwrite non saved scratch registers.
2073 Change patch_at to receive a jit_code_t instead of a
2074 jit_node_t, so that it is easier to "inline" patches when
2075 some instruction requires complex code to implement, e.g.
2077 Correct arguments to FMA and FMA like instructions that,
2078 due to a cut&paste error were passing the wrong argument
2079 to the related F- implementation function.
2080 Rewrite ltgt to return the proper result if one (or both)
2081 of the arguments is unordered.
2083 2013-04-26 Paulo Andrade <pcpa@gnu.org>
2085 * include/lightning/jit_ia64.h, include/lightning/jit_private.h,
2086 lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c,
2087 lib/lightning.c: Rework code to detect need of a "stop" to
2088 also handle predicates, as if a predicate is written, it
2089 cannot be read in the same instruction group.
2090 Use a single jit_regset_t variable for all registers when
2091 checking need for a stop (increment value by 128 for
2093 Correct wrong "subi" implementation, as the code executed
2094 is r0=im-r1, not r0=r1-im.
2095 Use standard lightning 6 fpr registers, and rework to
2096 use callee save float registers, that may be spill/reloaded
2097 in prolog/epilog. This is required because some jit
2098 instructions implementations need to call functions; currently
2099 integer div/mod and float sqrt, what may change the value of
2100 scratch float registers.
2101 Rework point of "sync" of branches that need to return a
2102 patch'able address, because the need for a "stop" before a
2103 predicate read causes all branches to be the instruction
2104 in slot 0, as there is no template to "stop" and branch
2105 in the same instruction "bundle".
2107 2013-04-25 Paulo Andrade <pcpa@gnu.org>
2109 * include/lightning/jit_ia64.h, lib/jit_ia64-cpu.c,
2110 lib/jit_ia64-fpu.c, lib/jit_ia64.c: New files implementing
2111 the basic infrastructure of an Itanium port. The code
2112 compiles and can generate jit for basic hello world like
2115 * check/lightning.c, configure.ac, include/lightning.h,
2116 include/lightning/Makefile.am, include/lightning/jit_private.h,
2117 lib/Makefile.am, lib/lightning.c: Update for the Itanium
2120 * lib/jit_mips-cpu.c, lib/jit_mips.c: Correct typo and
2121 make the jit_carry register local to the jit_state_t.
2122 This matches code reviewed in the Itanium port, that
2123 should use the same base logic to handle carry/borrow.
2125 2013-04-10 Paulo Andrade <pcpa@gnu.org>
2127 * include/lightning/jit_private.h, lib/jit_arm.c,
2128 lib/jit_mips-cpu.c, lib/jit_mips.c, lib/jit_ppc-cpu.c,
2129 lib/jit_ppc.c, lib/jit_print.c, lib/jit_sparc-cpu.c,
2130 lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86.c,
2131 lib/lightning.c: Change all jit_regset macros to take
2132 a pointer argument, to avoid structure copies when
2133 adding a port to an architecture with more than 64
2136 2013-04-08 Paulo Andrade <pcpa@gnu.org>
2138 * lib/jit_arm.c, lib/jit_ppc.c: Do not rely on __clear_cache
2139 aligning to the next page boundary the end argument. It may
2140 actually truncate it.
2142 2013-03-29 Paulo Andrade <pcpa@gnu.org>
2144 * include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_memory.c,
2145 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c,
2146 lib/lightning.c: Do not start over jit generation if can grow
2147 the code buffer with mremap without moving the base pointer.
2149 2013-03-29 Paulo Andrade <pcpa@gnu.org>
2151 * lib/jit_memory.c: Implement a simple memory allocation wrapper
2152 to allow overriding calls to malloc/calloc/realloc/free, as well
2153 as ensuring all memory containing pointers is zero or points to
2156 * include/lightning.h, include/lightning/jit_private.h: Definitions
2157 for the memory allocation wrapper.
2159 * lib/Makefile.am: Update for new jit_memory.c file.
2161 * lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips.c, lib/jit_note.c,
2162 lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c:
2163 Use the new memory allocation wrapper code.
2165 2013-03-22 Paulo Andrade <pcpa@gnu.org>
2167 * configure.ac, include/lightning/jit_private.h, lib/lightning.c:
2168 Remove dependency on gmp. Only a simple bitmap was required, and
2169 that was not enough reason to force linking to gmp and possible
2170 complications caused by it.
2172 2013-03-10 Paulo Andrade <pcpa@gnu.org>
2174 * include/lightning.h: Add check for __powerpc__ defined
2175 in Linux, while Darwin defines __ppc__.
2177 * include/lightning/jit_ppc.h: Adjust register definitions
2178 for Darwin 32 bit and Linux 64 bit ppc usage and/or ABI.
2180 * include/lightning/jit_private.h: Add proper check for
2181 Linux __powerpc__ and an data definition for an workaround
2182 to properly handle code that starts with a jump to a "main"
2185 * lib/jit_disasm.c: Add extra disassembler initialization
2188 * lib/jit_ppc-cpu.c: Add extra macros and functions, and
2189 correct/adapt previous ones to handle powerpc64.
2191 * lib/jit_ppc-fpu.c: Adapt for 64 bit wordsize. Basically
2192 add conversion from/to int32/int64 and proper handling of
2193 load/store offsets too large for 32 bit.
2195 * lib/jit_ppc.c: Add calls to 64 bit codes and adaptation
2196 for the PowerPC 64 bit Linux ABI.
2198 * lib/jit_arm.c, lib/jit_mips.c, lib/jit_sparc, lib/jit_x86.c,
2199 lib/lightning.c: Correct off by one error when restarting jit
2200 of a function due to finding too late that needs to spill/reload
2201 some register. Problem was found by accident on a very special
2202 condition during PowerPC 64 code adaptation.
2204 2013-03-08 Paulo Andrade <pcpa@gnu.org>
2206 * check/lightning.c: Add missing ppc preprocessor definition.
2208 2013-03-06 Paulo Andrade <pcpa@gnu.org>
2210 * check/float.tst: Comment out the int to negative infinity
2211 test in mips for the moment because not all Loongson agrees
2214 * lib/jit_disasm.c: Add a test instead of an assertion
2215 when loading symbols for disassembly due to a failure with
2216 a simple binutils build in Debian mipsel64.
2218 2013-03-06 Paulo Andrade <pcpa@gnu.org>
2220 * include/lightning/jit_private.h, lib/jit_arm-cpu.c,
2221 lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips-cpu.c,
2222 lib/jit_mips.c, lib/jit_note.c, lib/jit_ppc-cpu.c,
2223 lib/jit_ppc.c, lib/jit_print.c, lib/jit_sparc-cpu.c,
2224 lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86.c,
2225 lib/lightning.c: Add an extra structure for data storage
2226 during jit generation, and release it after generating
2227 jit, to reduce a bit memory usage, and also to make it
2228 easier to understand what data is available during
2231 2013-03-06 Paulo Andrade <pcpa@gnu.org>
2233 * lib/lightning.c: Make data and code buffer readonly.
2235 2013-02-20 Paulo Andrade <pcpa@gnu.org>
2237 * doc/body.texi: Fool proof validate the examples of what
2238 an assembly-language programmer would write and correct the
2239 wrong sparc example.
2241 2013-02-19 Paulo Andrade <pcpa@gnu.org>
2243 * doc/body.texi: Add back the SPARC code generation example.
2245 2013-02-19 Paulo Andrade <pcpa@gnu.org>
2247 * check/lightning.c: Remove state flag to work with partial
2248 sparc port, by just disassembling if there was incomplete
2251 * jit_sparc-cpu.c: Correct wrong range check for immediate
2252 integer constants (off by one bit shift).
2253 Correct macro implementing equivalent "rd %y, rd" assembly.
2254 Implement qmul* and qdiv*.
2256 * jit_sparc.c: Update for qmul* and qdiv* and remove logic
2257 to handle incomplete code generation during sparc port.
2259 2013-02-18 Paulo Andrade <pcpa@gnu.org>
2261 * check/float.tst: Add sparc to list of known NaN and +-Inf
2262 to integer conversion.
2264 * check/lightning.c: Define __sparc__ to preprocessor in
2267 * include/lightning/jit_private.h: Correct wrong definition
2268 of emit_stxi_d, that has lived for a long time, but would
2269 cause problems whenever needing to spill/reload a float
2272 * include/lightning/jit_sparc.h: Can only use %g2,%g3,%g4
2273 for scratch variables, as other "global" registers are
2274 reserved for the system, e.g. libc.
2275 Reorder float register naming to make it easier to
2276 access odd float registers, so that generating code for
2277 pusharg and getarg is easier for the IR.
2279 * lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c: Update to match
2280 new code in jit_sparc-cpu.c. It must call jit_get_reg
2281 with jit_class_nospill if using the register to move
2282 an unconditional branch address to it, as the reload
2283 will not happen (actually could happen in the delay
2286 * lib/jit_sparc-cpu.c: Correct wrong macro definition for
2288 Properly implement div* and implement rem. Div* needs
2289 to use the y register, and rem* needs to be synthesized.
2290 Correct b?sub* macro definitions.
2292 * lib/jit_sparc-fpu.c: Correct reversed float to/from double
2294 Correct wrong jit_get_reg call asking for a gpr and then
2295 using the fpr with that number.
2296 Correct wrong branch displacement computation for
2297 conditional branches.
2299 * lib/jit_sparc.c: Correct getarg_d and pushargi_d implementation.
2300 Add rem* entries to the switch converting IR to machine code.
2302 * lib/lightning.c: Correct a problem detected when adding
2303 the jit_class_nospill flag to jit_get_reg, that was caused
2304 when having a branch to an "epilog" node, what would cause
2305 the code to think all registers in unknown state were live,
2306 while in truth, all registers in unknown state in the
2307 "just after return" point are actually dead.
2309 2013-02-17 Paulo Andrade <pcpa@gnu.org>
2311 * include/lightning/jit_sparc.h, lib/jit_sparc-cpu.c,
2312 lib/jit_sparc-fpu.c, lib/jit_sparc.c: New files implementing
2313 the basic framework of the sparc port.
2315 * configure.ac, include/lightning.h, include/lightning/Makefile.am,
2316 include/lightning/jit_private.h, lib/jit_disasm.c: Update
2317 for the sparc port framework.
2319 * lib/jit_mips.c: Correct reversed retr/reti logic.
2321 * lib/jit_ppc.c: Correct misspelled __LITTLE_ENDIAN.
2323 * lib/lightning.c: Always do byte hashing in hash_data, because
2324 the logic to "compress" strings causes large pointers to not
2325 be guaranteed aligned at 4 byte boundaries.
2326 Update for the sparc port framework.
2328 2013-02-11 Paulo Andrade <pcpa@gnu.org>
2330 * lib/jit_arm.c: Correct jit_pushargi_f in the arm hardfp abi.
2331 Most of the logic uses even numbered register numbers, so that
2332 a float and a double can be used in the same register, but
2333 the abi requires packing the float arguments, so jit_pushargi_f
2334 needs to allocate a temporary register to modify only the
2335 proper register argument (or be very smart to push two
2336 immediate arguments if applicable).
2338 2013-02-11 Paulo Andrade <pcpa@gnu.org>
2340 * include/lightning.h, lib/lightning.c: Implement the new
2341 jit_clear_state and jit_destroy_state calls. jit_clear_state
2342 releases all memory not required during jit_execution; that
2343 is, leaves only the mmap'ed data and code buffers allocated.
2344 jit_destroy_state releases the mmap'ed buffers as well as
2345 the jit_state_t object itself, that holds pointers to the
2346 code and data buffers, as well as annotation pointers (for
2347 disassembly or backtrace) in the data buffer.
2349 * lib/jit_note.c: Correct invalid vector offset access.
2351 * check/ccall.c, check/lightning.c, doc/ifib.c, doc/incr.c,
2352 doc/printf.c, doc/rfib.c, doc/rpn.c: Use the new jit_clear_state
2353 and jit_destroy_state calls, to demonstrate the new code to
2354 release all jit memory.
2356 * doc/body.texi: Add basic documentation and usage description
2357 of jit_clear_state and jit_destroy_state.
2359 2013-02-11 Paulo Andrade <pcpa@gnu.org>
2361 * include/lightning/jit_private.h, lib/jit_note.c, lib/lightning.c:
2362 Store all annotation information in the mmap'ed area reserved for
2363 read only data. This adds code to not allocate memory for jit_note_t
2364 objects, and to relocate jit_line_t objects and its contents after
2365 calculating annotation information. The jit_line_t objects are
2366 relocated because it is not possible to always calculate before
2367 hand data layout because note information may be extended or
2368 redundant entries removed, as well as allowed to be added in
2369 non sequential order.
2370 A bug was also corrected in _jit_set_note, that was causing it
2371 to allocate new jit_line_t objects when not needed. It was still
2372 working correctly, but allocating way more memory than required.
2374 2013-02-05 Paulo Andrade <pcpa@gnu.org>
2376 *include/lightning.h, lib/lightning.c: Add the new jit_live code
2377 to explicitly mark a register as live. It is required to avoid
2378 assuming functions always return a value in the gpr and fpr return
2379 register, and to avoid the need of some very specialized codes
2380 that vary too much from backend to backend, to instruct the
2381 optimization code the return register is live.
2383 * lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c,
2384 lib/jit_x86.c: Update for the new jit_live code.
2386 * check/ret.ok, check/ret.tst: New files implementing a simple
2387 test case that would previously fail at least in ix86/x86_64.
2389 * check/Makefile.am: Update for new "ret" test case.
2391 2013-02-05 Paulo Andrade <pcpa@gnu.org>
2393 * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Validate and correct
2394 problems in the qmul and qdiv ppc implementation.
2396 2013-02-04 Paulo Andrade <pcpa@gnu.org>
2398 * include/lightning.h, include/lightning/jit_private.h,
2399 lib/jit_arm-cpu.c, lib/jit_arm.c, lib/jit_mips-cpu.c,
2400 lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c,
2401 lib/jit_x86-cpu.c, lib/jit_x86.c, lib/lightning.c:
2402 Implement the new qmul and qdiv instructions that return signed
2403 and unsigned lo/hi multiplication result and div/rem division result.
2404 These should be useful for jit translation of code that needs to
2405 know if a multiplication overflows (no branch opcode added) or if
2406 a division is exact (easy check if remainder is zero).
2408 * check/lightning.c, lib/jit_print.c, check/Makefile.am,
2409 check/all.tst: Update for the new qmul and qdiv instructions.
2411 * check/qalu.inc, check/qalu_div.ok, check/qalu_div.tst,
2412 check/qalu_mul.ok, check/qalu_mul.tst: New files implementing
2413 simple test cases for qmul and qdiv.
2415 2013-01-30 Paulo Andrade <pcpa@gnu.org>
2417 * doc/body.texi: Correct "jmpi" description that incorrectly
2418 told it was possible to pass any address as jump target. The
2419 only way to do that is "movi+jmpr".
2421 2013-01-30 Paulo Andrade <pcpa@gnu.org>
2423 * lib/jit_x86-cpu.c: Correct undefined behavior code.
2424 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56143
2426 2013-01-29 Paulo Andrade <pcpa@gnu.org>
2428 * configure.ac: Use AC_CONFIG_HEADERS instead of AC_CONFIG_HEADER
2429 to have HAVE_CONFIG_H defined with latest aclocal.
2431 * include/lightning/jit_private.h, lib/lightning.c: Add new
2432 abstraction to use an heuristic to calculate amount of space
2433 required for jit generation, and code to reallocate buffer if
2434 did miscalculate it.
2436 * lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c:
2437 Update to use new code to estimate and resize of required buffer
2440 * lib/jit_x86-cpu.c: Minor cosmetic change to avoid adding a
2441 non required rex prefix when calling a function pointer stored
2444 2013-01-24 Paulo Andrade <pcpa@gnu.org>
2446 * check/Makefile.am: "make debug" target should pass only
2447 the main test tool program as argument for running gdb
2449 * configure.ac: Add the --enable-assertions options.
2451 * doc/Makefile.am, doc/body.texi, doc/lightning.texi:
2452 Major rewrite of the documentation to match the current
2455 * doc/version.texi: Automatic date update.
2457 * doc/ifib.c, doc/incr.c, doc/printf.c, doc/rfib.c, doc/rpn.c:
2458 Implementation of the documentation examples, that are also
2459 compiled during a normal build.
2461 * doc/p-lightning.texi, doc/porting.texi, doc/toc.texi,
2462 doc/u-lightning.texi, doc/using.texi: These files were
2463 renamed in the documentation rewrite, as the documentation
2464 was significantly trimmed due to full removal of the porting
2465 chapters. Better porting documentation should be added but
2466 for the moment it was just removed the documentation not
2467 matching the implementation.
2469 2013-01-18 Paulo Andrade <pcpa@gnu.org>
2471 * lib/jit_note.c: Correct bounds check and wrong code keeping
2472 a pointer that could be changed after a realloc call.
2474 2013-01-18 Paulo Andrade <pcpa@gnu.org>
2476 * check/3to2.tst, check/add.tst, check/allocai.tst, check/bp.tst,
2477 check/call.tst, check/ccall.c, check/clobber.tst, check/divi.tst,
2478 check/fib.tst, check/ldsti.tst, check/ldstr-c.tst, check/ldstr.tst,
2479 check/ldstxi-c.tst, check/ldstxi.tst, check/ldstxr-c.tst,
2480 check/ldstxr.tst, check/lightning.c, check/rpn.tst, check/stack.tst,
2481 check/varargs.tst, include/lightning.h,
2482 include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_disasm.c,
2483 lib/jit_mips.c, lib/jit_note.c, lib/jit_ppc.c, lib/jit_print.c,
2484 lib/jit_x86.c, lib/lightning.c: Extend the "jit_note" abstraction
2485 with the new "jit_name" call, that receives a string argument, and
2486 should usually be called to mark boundaries of functions of code
2487 generating jit (that is, it is not expected that the language
2488 generating jit map its functions to jit functions).
2490 2013-01-17 Paulo Andrade <pcpa@gnu.org>
2492 * check/add.tst, check/allocai.tst, check/bp.tst, check/divi.tst,
2493 check/fib.tst, check/lightning.c, include/lightning/jit_arm.h,
2494 include/lightning/jit_mips.h, include/lightning/jit_ppc.h,
2495 include/lightning/jit_private.h, include/lightning/jit_x86.h:
2496 Make JIT_RET, JIT_FRET and JIT_SP private. These should not be
2497 used in any operations due to frequently having special
2498 constraints (usually JIT_FRET). JIT_FP must be made available
2499 because it must be used as the base register to access stack
2500 space allocated with jit_allocai.
2502 2013-01-14 Paulo Andrade <pcpa@gnu.org>
2504 * include/lightning.h, lib/lightning.c: Add an extra align
2505 argument to the jit_data call (that should be made private),
2506 so that it should not align strings at 8 bytes.
2507 Correct the jit_note call to include the null ending byte
2508 when adding label/note names to the "jit data section".
2510 2013-01-11 Paulo Andrade <pcpa@gnu.org>
2512 * lib/jit_note.c: New file implementing a simple string+integer
2513 annotation, that should be used to map filename and line number
2514 to offsets in the generated jit.
2516 * include/lightning.h, lib/lightning.c: Update for the new
2518 Add an extra mandatory argument to init_jit, that is used
2519 as argument to bfd_openr.
2520 Change from generic void* to char* the argument to jit_note
2521 and add an extra integer argument, to map to filename and
2524 * check/ccall.c, check/lightning.c, include/lightning/jit_private.h,
2525 lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips.c, lib/jit_ppc.c,
2526 lib/jit_print.c, lib/jit_x86.c: lib/Makefile.am: Update for the
2527 new annotation code.
2529 * configure.ac, check/Makefile.am: Update to work with latest
2532 2013-01-09 Paulo Andrade <pcpa@gnu.org>
2534 * include/lightning.h, lib/jit_arm.c, jit_mips-fpu.c,
2535 lib/jit_mips.c, lib/jit_print.c, lib/jit_x86.c, lib/lightning.c:
2536 Remove the jit_code_getarg_{f,d} and jit_code_pusharg{i,r}_{f,d}
2537 calls, replacing them with the new, internal only, jit_movr_w_f,
2538 jit_mov{r,i}_f_w, jit_movr_ww_d, and jit_mov{i,r}_d_ww, that
2539 better describe the operation being done, and allow removing
2540 the hackish code to detect special conditions for arm when
2541 moving from/to vfp from/to a grp register pair.
2542 Rename jit_code_retval_{f,d} to jit_code_x86_retval_{f,d} as
2543 it is specific to 32 bit x86, and used to move abi return
2544 value in x87 register to a sse register.
2546 2013-01-05 Paulo Andrade <pcpa@gnu.org>
2548 * check/cccall.c, check/ccall.ok: New test case to validate
2549 interleaved calls from/to C code and jit.
2551 * check/Makefile.am: Update for the new ccall test case.
2553 * include/lightning.h, lib/lightning.c: Add the new jit_address
2554 call that returns the real/final address of a "note" in the
2555 generated jit. It requires a jit_node_t as returned by the
2556 jit_note call, and is only valid after calling jit_emit.
2557 Add an intermediate solution to properly handle arm
2558 soft and softfp modes that move a double to an integer register
2559 pair. Currently it just adds extra tests for the condition,
2560 but the proper solution should be to have extra lightning
2561 codes for these conditions, codes which should be only used
2562 by the backends that need it, and merged with the existing
2565 * include/lightning/jit_private.h: Add new jit_state_t flag
2566 to know it finished jit_emit, so that calls to jit_address
2569 * lib/jit_mips.c: Correct abi implementation so that the
2570 new ccall test case pass. Major problem was using
2571 _jit->function.self.arg{i,f} as boolean values, but that
2572 would cause lightning.c:patch_registers() to incorrectly
2573 assume only one register was used as argument when calling
2574 jit_regarg_p(); _jit->function.self.arg{i,f} must be the
2575 number of registers used as arguments (in all backends).
2577 * lib/jit_x86.c: Add workaround, by marking %rax as used,
2578 to a special condition, when running out of registers and the
2579 allocator trying to spill and reload %rax, but %rax was used
2580 as a pointer to a function, what would cause the reload to
2581 destroy the return value. This condition can be better
2582 generalized, but the current solution is good enough.
2584 * include/lightning/jit_ppc.h, lib/jit_ppc-cpu.c, lib/jit_ppc.c:
2585 Rewrite logic to handle arguments, as the original code was
2586 written based on a SysV pdf about the generic powerpc ABI,
2587 what did "invent" a new abi for the previous test cases, but
2588 failed in the new ccall test in Darwin PPC. Now it properly
2589 handles 13 float registers for arguments, as well as proper
2590 computation of stack offsets when running out of registers
2593 2013-01-02 Paulo Andrade <pcpa@gnu.org>
2595 * check/float.tst: Correct test case to match ppc also
2596 converting positive infinity to 0x7fffffff.
2598 * lib/jit_arm-swf.c: Correct typos with double underscores.
2600 * lib/lightning.c: Correct remaining wrong reverse jump logic.
2602 2012-12-29 Paulo Andrade <pcpa@gnu.org>
2604 * lib/lightning.c: Correct both, wrong and confusing logic
2605 to compute the reverse of a jump. Now it properly matches
2606 C semantics for "eq" (==) and "ne" (!=) and correct computation
2607 of reverse of "uneq" as "gt".
2609 * check/branch.tst: Update "ne" float branch check that
2610 previously happened to be wrongly tested with a NaN argument.
2612 2012-12-29 Paulo Andrade <pcpa@gnu.org>
2614 * check/float.ok, check/float.tst: New test cases implementing
2615 extensive validation of float comparison and branch code
2616 generation as well as integer conversion, involving NaN and
2619 * lib/jit_arm-swf.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c:
2620 Correct bugs found by new float test case.
2622 * lib/jit_x86.c: Correct cut&paste error added in commit to
2623 convert jit_arg* return value to a jit_node_t*, that would
2624 cause it to not properly handle double arguments in ix86.
2626 * check/Makefile.am: Update for the new test case.
2628 2012-12-28 Paulo Andrade <pcpa@gnu.org>
2630 * check/lightning.c, include/lightning.h, lib/jit_arm.c,
2631 lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_x86.c,
2632 lib/lightning.c: Change return value of jit_arg{,_f,_d} to
2633 a jit_node_t* object, that should be used as argument to
2634 jit_getarg_{c,uc,s,us,i,ui,l,f,d}. This just requires changing
2635 from jit_int32_t to jit_pointer_t (or jit_node_t*) the "handle"
2636 for the getarg calls, with the benefit that it makes it easy
2637 to implement patching of the stack address of non register
2638 arguments, this way allowing to implement variable size stack
2639 frames if applicable; useful if there are too many registers and
2640 jit functions uses only a few callee save registers.
2642 2012-12-27 Paulo Andrade <pcpa@gnu.org>
2644 * lib/jit_arm.c, lib/jit_mips-cpu.c, lib/jit_mips.c: Correct
2645 regressions when patching jit_calli for a forward function.
2647 * lib/jit_ppc-cpu.c: Correct wrong arguments to ANDI opcode
2648 in jit_getarg_u{c,s} implementation.
2650 2012-12-23 Paulo Andrade <pcpa@gnu.org>
2652 * check/call.ok, check/call.tst: New test cases to validate
2653 simple typed argument and return values in function calls.
2655 * check/lightning.c: Properly handle jit_movi of labels for
2656 backward and forward code labels.
2658 * check/Makefile.am: Update for new test case.
2660 2012-12-23 Paulo Andrade <pcpa@gnu.org>
2662 * check/carry.ok, check/carry.tst: New test case to validate
2663 carry condition handling.
2665 * check/Makefile.am: Update for new test case.
2667 2012-12-22 Paulo Andrade <pcpa@gnu.org>
2669 * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Implement logic for
2670 jit_htonr for big endian, so that ppc (big endian) pass the
2671 new clobber.tst test case.
2673 2012-12-22 Paulo Andrade <pcpa@gnu.org>
2675 * lib/jit_arm.c: Correct use of wrong argument offset
2676 variable in armv7l or float/double argument for varargs
2677 function in armv7hl.
2678 Correct jit_getarg* logic in software float mode to
2679 match expected behavior in other backends, that is, if
2680 a function is not called, it is safe to use a few lightning
2681 calls before a next jit_getarg* call, as done in the test
2682 case check/stack.tst. The proper solution should be to
2683 extend the parser in lib/lightning.c to check if there is
2684 some float operation that will call some (libgcc?) function,
2685 but software float arm should be a very uncommon backend for
2686 lightning, so, just load the already in place arguments
2687 saved to stack, assuming the register argument was clobbered
2688 (what should not be the case most times...).
2690 2012-12-22 Paulo Andrade <pcpa@gnu.org>
2692 * check/clobber.ok, check/clobber.tst: New test case doing
2693 extensive validation tests to ensure registers not used in
2694 a operation are not clobbered.
2696 * check/Makefile.am: Update for new test case.
2698 2012-12-21 Paulo Andrade <pcpa@gnu.org>
2700 * lib/lightning.c: Partially rewrite/revert code to compute
2701 initial register live state at the start of a basic block.
2702 The original logic was corrupted when adding optimizations
2703 to do as few computations as possible in jit_update. The
2704 reglive field must be always a known set of live registers
2705 at the start of a basic block. The value that was incorrect
2706 was the regmask field, that must be the set of registers
2707 that are in unknown state, because they are not known live,
2708 neither set (or possibly not set) in the basic block, and
2709 *must* store the state at the start of the basic block.
2711 2012-12-20 Paulo Andrade <pcpa@gnu.org>
2713 * include/lightning/jit_ppc.h: Correct mismatch of JIT_F{1,5}
2714 with enum codes, that were correct, and returned by jit_f().
2716 * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: Properly
2717 implement and better describe values when generating stack
2720 2012-12-18 Paulo Andrade <pcpa@gnu.org>
2722 * check/stack.ok, check/stack.tst: New files to test data
2723 integrity on a deep chain of stack frames.
2725 * lib/jit_arm.c, lib/jit_arm-cpu.c, lib/jit_mips.c,
2726 lib/jit_mips-cpu.c, lib/jit_ppc.c, lib/jit_ppc-cpu.c,
2727 lib/jit_x86.c, lib/jit_x86-cpu.c: Calculate _jit->function->stack
2728 in the emit stage, otherwise it will calculate it wrong if
2729 need to jit_allocai space to spill registers.
2731 * lib/lightning.c: Correct wrong offset when updating the
2732 "current" jit function pointer in the code that may need to
2733 allocate stack space to spill registers.
2735 * check/lightning.c: Correct off by one data space check.
2737 * check/Makefile.am: Update for new test case.
2739 2012-12-17 Paulo Andrade <pcpa@gnu.org>
2741 * check/fop_abs.ok, check/fop_abs.tst, check/fop_sqrt.ok,
2742 check/fop_sqrt.tst: New files implementing simple test cases
2743 for the extra float operations.
2745 * check/Makefile.am: Update for new test cases.
2747 * check/alu.inc: Add an extra macro to check for unordered
2748 equality on tests where it is expected to use NaN as an
2751 * check/lightning.c: Minor change for proper/common argument
2752 syntax handling ommiting arguments to options.
2754 2012-12-17 Paulo Andrade <pcpa@gnu.org>
2756 * check/Makefile.am: Automatically generate pattern list
2757 of tests with alternate jit generation options. This should
2758 prevent typos and needing to change multiple places after
2761 2012-12-14 Paulo Andrade <pcpa@gnu.org>
2763 * check/lightning.c: Remove the ".cpu name value" syntax,
2764 as it was not able to do proper changes before the jit
2765 internal data structure was initialized. Now it supports
2766 several getopt options to force using different jit
2767 generation options, effectively replacing the previous
2770 * check/run-test: Add simple extra logic to handle differently
2771 named test scripts, used to test things like x87 coprocessor
2772 in ix86, and arm instruction set or software float in armv7l.
2774 * configure.ac: Add some AC_RUN_IFELSE calls to figure at
2775 compile time if can test different code generation options,
2776 and update Makefile generation accordingly.
2778 * check/Makefile.am, lib/jit_arm.c, lib/jit_x86.c: Update to
2779 properly work with the test tool updating the jit_cpu global
2782 * check/check.arm.sh, check/check.swf.sh, check/check.x87.sh:
2783 New wrapper files passing -mthumb=0, mvfp=0 and -mx87=1 to
2784 the test tool, if applicable, so that it can validate alternate
2785 code generation options on test hosts that support them.
2787 2012-12-14 Paulo Andrade <pcpa@gnu.org>
2789 * lib/jit_x86-x87.c, lib/jit_x86.c: Correct test cases in ix86
2790 when using the x87 coprocessor instead of sse2+.
2792 2012-12-14 Paulo Andrade <pcpa@gnu.org>
2794 * include/lightning.h, include/lightning/jit_private.h,
2795 lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c,
2796 lib/lightning.c: Make jit_ellipsis implementation not
2797 backend specific. It is not intended to handle va_list
2798 like objects at runtime, as jit_arg* and jit_getarg*
2799 return constant values resolved at parse time, so, effectively
2800 it is not possible to create printf like jit functions, as
2801 there is no va_start, va_arg, va_end, etc, abstraction. This
2802 limitation should be kept for the sake of making new ports
2805 2012-12-14 Paulo Andrade <pcpa@gnu.org>
2807 * include/lightning.h, lib/lightning.c: Add two extra wrapper
2808 functions to avoid need for excess pointer to/from word casts.
2810 * check/lightning.c: Only need for pointer to/from word cast
2811 now is jit_movi, update accordingly.
2813 2012-12-13 Paulo Andrade <pcpa@gnu.org>
2815 * check/varargs.ok, check/varargs.tst: New test cases implementing
2816 simple varargs calls with a large amount of arguments to exercise
2817 excess arguments on stack.
2819 * include/lightning.h: Include config.h if HAVE_CONFIG_H is
2822 * lib/jit_arm.c: Allocate a fpr register, not a gpr one for
2823 temporary when pushing varargs arguments in the stack.
2825 * lib/jit_arm-swf.c: Correct code changing the wrong offset
2826 in jit_absr_d and jit_negr_d in software float.
2828 * lib/jit_mips.c: Correct calculation of offsets of arguments
2831 * lib/jit_ppc.c: Correct bogus logic for "next" offset of arguments
2832 on stack and adjust for fixed offset of stack arguments.
2834 2012-12-12 Paulo Andrade <pcpa@gnu.org>
2836 * include/lightning.h, lib/jit_arm.c, lib/jit_mips.c,
2837 lib/jit_ppc.c, lib/jit_x86.c, lib/lightning.c: Change jit_prepare
2838 to no longer receive an argument. If receiving an argument, it
2839 should be an ABI specifier, not a boolean if varargs or not,
2840 and add the new jit_ellipsis call, to specify where the
2841 ellipsis is in the C prototype of the function being called.
2842 Note that currently it is not supported to define varargs
2843 functions and it will be ignored if calling jit_ellipsis not
2844 in a prepare/finish* block, but this should be addressed.
2846 * check/allocai.tst, check/alu_add.tst, check/alu_and.tst,
2847 check/alu_com.tst, check/alu_div.tst, check/alu_lsh.tst,
2848 check/alu_mul.tst, check/alu_neg.tst, check/alu_or.tst,
2849 check/alu_rem.tst, check/alu_rsh.tst, check/alu_sub.tst,
2850 check/alu_xor.tst, check/alux_add.tst, check/alux_sub.tst,
2851 check/bp.tst, check/branch.tst, check/cvt.tst, check/divi.tst,
2852 check/fib.tst, check/ldsti.tst, check/ldstr-c.tst,
2853 check/ldstr.tst, check/ldstxi-c.tst, check/ldstxi.tst,
2854 check/ldstxr-c.tst, check/ldstxr.tst, check/rpn.tst,
2855 check/lightning.c: Update for the change to jit_prepare and
2856 addition of jit_ellipsis.
2858 2012-12-11 Paulo Andrade <pcpa@gnu.org>
2860 * lib/jit_ppc-cpu.c: Make movr a function that checks arguments
2861 so that other code can safely assume it is a noop if src and dst
2862 are the same register.
2863 Implement rem{r,i}{,_u} as a div{,u}/mul/sub.
2864 Correct ANDIS, ORIS and XORIS calls to cast the argument to
2865 unsigned before the shift to avoid an assertion if the argument
2866 had the topmost bit set.
2867 Implement lshi, rshi and rshi_u as functions to test for a
2868 zero argument, that would otherwise trigger an assertion when
2869 computing the shift value.
2870 Do a simple implementation of bm{s,c}{r,i} with a temporary,
2871 "andr" of arguments and jump based on comparison with zero.
2872 Correct typo in ldxi_c.
2874 * lib/jit_ppc-fpu.c: Correct wrong arguments to FDIV* and STF*.
2876 * lib/jit_ppc.c: Correct wrong check for 6 instead of 8 integer
2877 arguments in registers. If calling a varargs function and
2878 passing a float or double argument, also either store the
2879 value in the stack or in integer registers, as varargs functions
2880 do not fetch it from float registers.
2881 Add "case" for new functions and incorrectly missing ones.
2882 Call libgcc's __clear_cache, that should know what to do
2883 if the hardware needs flushing cache before execution.
2885 * lib/lightning.c: Do a simple/trivial logic in jit_regset_scan1,
2886 that should make it easier for the compiler to optimize it, and
2887 that also corrects the previously wrong code for big endian, and
2888 that was causing problems in ppc due to not saving all callee save
2889 registers as it was not "finding" them in the regset due to the
2890 little endian assumption bug.
2892 2012-12-11 Paulo Andrade <pcpa@gnu.org>
2894 * configure.ac: Only default to using the builtin disassembler
2895 if on GNU/Linux. This should be temporary, due to requiring
2897 Correctly check $target_cpu for powerpc.
2899 * include/lightning/jit_ppc.h: Correctly implement jit_v_num.
2901 * include/lightning/jit_private.h: Declare proper prototype
2902 for jit_init_debug and jit_finish_debug.
2904 * lib/jit_ppc-cpu.c: Remove code to save/restore callee save
2905 float registers, as it is not required since those float
2906 registers are not usable currently.
2907 Change prolog and epilog generation to, at least comparing
2908 code, match what gcc generates in "gcc -O0", but it is still
2909 failing in Darwin PPC, apparently due to the __clear_cache
2910 call not being enough, as frequently it will also fail to
2911 execute, and the code buffer is all zeroes.
2913 * lib/lightning.c: Do not fail in jit_regset_scan1 calls due
2914 to passing 64 as argument on computers with 64 registers.
2916 2012-12-10 Paulo Andrade <pcpa@gnu.org>
2918 * lib/jit_mips-cpu.c: Correct all current test cases.
2919 Call the "xori" not the "XORI" macro for jit_xori implementation,
2920 as the XORI macro handles only 16 bit unsigned values.
2921 Call the "movr" macro, not the "movi" macro in the special
2922 case of adding or subtracting zero.
2923 Use the proper temporary register in the jit_andr implementation.
2925 2012-12-09 Paulo Andrade <pcpa@gnu.org>
2927 * check/alu.inc, check/alu_add.ok, check/alu_add.tst,
2928 check/alu_and.ok, check/alu_and.tst, check/alu_com.ok,
2929 check/alu_com.tst, check/alu_div.ok, check/alu_div.tst,
2930 check/alu_lsh.ok, check/alu_lsh.tst, check/alu_mul.ok,
2931 check/alu_mul.tst, check/alu_neg.ok, check/alu_neg.tst,
2932 check/alu_or.ok, check/alu_or.tst, check/alu_rem.ok,
2933 check/alu_rem.tst, check/alu_rsh.ok, check/alu_rsh.tst,
2934 check/alu_sub.ok, check/alu_sub.tst, check/alu_xor.ok,
2935 check/alu_xor.tst, check/alux_add.ok, check/alux_add.tst,
2936 check/alux_sub.ok, check/alux_sub.tst, check/branch.ok,
2937 check/branch.tst: New test cases for arithmetic and branch
2940 * check/Makefile.am: Update for new test cases.
2942 * include/lightning/jit_private.h: Make the jit_reg_free_p
2943 macro shared by all backends. Previously was added for the
2944 arm backend, but is useful in the x86_64 backend when checking
2945 state of "special purpose register".
2946 Also add the new jit_class_named register class, that must be
2947 or'ed with the register value if calling jit_get_reg expecting
2948 an specific value, because the specific register value may be
2949 zero, that previously was treated as no register requested.
2951 * lib/jit_arm-cpu.c: Correct argument order for T2_MVN.
2953 * lib/jit_arm-swf.c: Call the proper function for double
2954 divide. The "software float" implementation just calls
2957 * lib/jit_arm.c: Return float/double values in the float
2958 register if using the hard float ABI.
2960 * lib/jit_x86-cpu.c: Change the can_sign_extend_int_p macro
2961 to not include -0x80000000L, because there is code that
2962 "abuses" it and thinks it can negate the immediate value
2963 after calling that macro.
2964 Correct implementation of jit_subi that had a wrong code
2965 patch logic doing subtraction with reversed arguments.
2966 Correct REX prefix calculation in the jit_muli implementation.
2967 Correct logic to get/unget %*ax and %*dx registers in divremr
2969 Correct divremi that was using the symbolic, unique %*ax
2970 value in on place (not using the _REGNO name suffix).
2971 Correct cut&paste error causing it to use "xor" instead of
2972 "or" in one code path of the jit_ori implementation.
2973 Correct several flaws when clobbering registers and/or when
2974 one of the arguments was %*cx in the rotshr wrapper function
2975 implementing most shift operations.
2977 * lib/lightning.c: No longer expect that the backend be smart
2978 enough to know what to do when asking for a named register
2979 if that register is already an argument or is live. It fails
2980 if it is an argument, or if register is live, fails if cannot
2982 No longer incorrectly assume that eqr_{f,d} and ltgr_{f,d} are
2983 safe to inverse value tests in jump thread optimization.
2985 2012-12-05 Paulo Andrade <pcpa@gnu.org>
2987 * check/Makefile.am, check/cvt.ok, check/cvt.tst: Add new
2988 "cvt" test case to test conversion from/to int/float types.
2990 * check/lightning.c: Only define truncr_{f,d}_l in 64 bit mode.
2992 * include/lightning.h: Correct typo that caused it to define
2993 jit_truncr_{f,d}_l in 32 bit mode.
2995 * lib/jit_arm-cpu.c: Avoid assertion failure in the signed/unsigned
2996 extend opcodes generation as it shares an interface for 3 argument
2999 * lib/jit_x86-cpu.c: Correct wrong argument passed to
3000 jit_unget_reg in the andi implementation and wrong byte
3001 unsigned extend code generation.
3003 * lib/jit_x86-sse.c: Correct conversion from "word" to float or
3004 double as is dependent on wordsize.
3006 2012-12-05 Paulo Andrade <pcpa@gnu.org>
3008 * check/ldstr-c.ok, check/ldstr-c.tst, check/ldstxi-c.ok,
3009 check/ldstxi-c.tst, check/ldstxr-c.ok, check/ldstxr-c.tst:
3010 New test case files testing load clobbering the base and/or
3013 * check/ldst.inc: New file with common definition for all the
3016 check/Makefile.am, check/ldsti.tst, check/ldstr.tst,
3017 check/ldstxi.tst, check/ldstxr.tst: Update for new common
3018 definitions file and new register clobber ldst tests.
3020 2012-12-05 Paulo Andrade <pcpa@gnu.org>
3022 * lib/jit_mips-fpu.c: Correct wrong register order in stxr_{f,d}
3023 in the mips backend.
3025 2012-12-05 Paulo Andrade <pcpa@gnu.org>
3027 * lib/jit_arm-vfp.c: Correct regression found in armv7l with
3030 2012-12-05 Paulo Andrade <pcpa@gnu.org>
3032 * check/ldstxi.tst, check/ldstxr.tst: Correct wrong argument
3033 order for 32 bit mode tests.
3035 * configure.ac: Correct check for ix86 target_cpu.
3037 2012-12-05 Paulo Andrade <pcpa@gnu.org>
3039 * check/ldstr.ok, check/ldstr.tst, check/ldsti.ok,
3040 check/ldsti.tst, check/ldstxr.ok, check/ldstxr.tst,
3041 check/ldstxi.ok, check/ldstxi.tst:
3042 New test case files exercising a very large amount of
3043 register combinations to verify load/store implementation.
3045 * check/Makefile.am: Update for new test cases.
3047 * lib/jit_x86-cpu.c: Correct wrong argument order when
3048 computing REX prefix for {ld,st}r_T codes;
3050 2012-12-04 Paulo Andrade <pcpa@gnu.org>
3052 * lib/jit_mips-fpu.c, lib/jit_mips.c: Implement missing mips
3053 jit_sqrtr_{f,d} codes.
3055 * check/all.tst, include/lightning.h, lib/jit_print.c: Change
3056 declaration order and call order in all.tst of {add,sub}c and
3057 {add,sub}x. *c must be called before to set the carry and *x
3058 second to use the carry and keep it set. The wrong call order
3059 was causing all.tst to fail in mips, where a register is
3060 allocated to keep a global carry state.
3062 2012-12-04 Paulo Andrade <pcpa@gnu.org>
3064 * include/lightning/jit_mips.h, lib/jit_mips-cpu.c,
3065 lib/jit_mips-fpu.c, lib/jit_mips.c: Correct float/double
3066 argument handling and make the mips backend pass the initial
3069 * include/lightning.h, ib/jit_print.c, lib/lightning.c:
3070 Add extra enum values for argument handling functions that
3071 could not be abstracted to the current codes, that is, when
3072 float values need to move from/to gpr from/to fpr. It would
3073 be more tempting to add such primitives, but they would have
3074 wordsize limitations, and it is not expected to add codes
3075 with one gpr argument for 64 bit and two for 32 bit.
3077 * lib/jit_ppc.c: Check _jit->function before calling jit_epilog()
3078 to avoid a runtime exception.
3080 2012-12-04 Paulo Andrade <pcpa@gnu.org>
3082 * include/lightning/jit_mips.h, lib/jit_mips.c: Update to
3083 make the mips backend compile in a qemu image.
3085 * lib/jit_ppc.c: Minor adaptations to help in having the
3086 ppc backend compilable.
3088 2012-12-03 Paulo Andrade <pcpa@gnu.org>
3090 * configure.ac, include/lightning/jit_private.h, lib/jit_arm-cpu.c,
3091 lib/jit_arm-swf.c, lib/jit_arm.c, check/Makefile.am: Correct
3092 implementation of the arm backend port to build and pass the
3093 current test cases. Tested on armv7 with softfp abi.
3095 * lib/jit_disasm.c: Rename and change prototype of static
3096 disassemble function as in the arm backend it is required
3097 to access state information stored in the jit_state_t object.
3099 * check/3to2.tst, check/add.tst: Correct test case code assuming
3100 JIT_RO and JIT_RET are the same, and even if they are the same,
3101 the logic was incorrect because it must always call jit_retval*
3102 to fetch a function call return before any other instruction.
3103 The arm backend hash a special condition if jit_retval is not
3104 called, because "r0" is not JIT_R0, but is JIT_RET and *also*
3105 the first argument for a called function, so JIT_RET must be
3106 only used as an argument to jit_retval.
3108 2012-12-03 Paulo Andrade <pcpa@gnu.org>
3110 * check/all.tst, check/lightning.c: Only declare or use 64 bit
3111 interfaces on 64 bit builds.
3113 * check/fib.tst: Use simpler logic to not need preprocessor
3114 conditionals for 32 or 64 bit.
3116 * include/lightning.h: Only declare 64 bit macros on a 64 bit
3117 build. Code using lightning must know about wordsize and the
3118 jit generation limitations, also, this way it generates a
3119 compile time failure, not a runtime assertion.
3121 * include/lightning/jit_x86.h: Correct typo in macro name.
3123 * lib/jit_arm.c, lib/jit_arm-cpu.c, lib/jit_mips.c,
3124 lib/jit_mips-cpu.c, lib/jit_ppc.c, lib/jit_ppc-cpu.c,
3125 lib/jit_x86.c, lib/jit_x86-cpu.c: Correct wrong code to get
3126 current jit function pointer.
3128 * lib/lightning.c: Move call to the simplify() optimization
3129 to after register liveness is known. Previous code did work
3130 by accident but now with proper test cases the problem was
3133 * lib/jit_disasm.c: Always cast bfd_vma to long long when
3134 passing it as printf argument.
3136 2012-12-03 Paulo Andrade <pcpa@gnu.org>
3138 * configure.ac, check/Makefile.am, check/check.sh,
3139 doc/Makefile.am, include/lightning/Makefile.am,
3140 lib/Makefile.am: Correct make distcheck.
3142 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3144 * lib/jit_ppc.c: Assign copyright ownership to FSF.
3146 * lib/jit_x86-cpu.c: Correct integer multiplication that was
3147 generating code with reversed register arguments.
3149 * check/rpn.ok, check/rpn.tst: New test case file.
3151 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3153 * lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c:
3154 Actually change copyright owner to FSF as avertised.
3156 * lib/jit_arm-cpu.c, lib/jit_arm-swf.c,
3157 lib/jit_arm-vfp.c, lib/jit_arm.c,
3158 lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c,
3159 lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: New
3160 files implementing initial code different jit backends.
3162 * include/lightning/jit_private.h: Add extra field to the
3163 private jit_patch_t type, required by the arm port.
3165 * lib/Makefile.am: Update for the new backend implementation
3168 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3170 * check/Makefile.am: Add proper "make clean" rule and missing
3171 check.sh to EXTRA_DIST.
3173 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3175 * .gitignore: Update pattern of ignored files.
3177 * check/Makefile.am: Add rule to build liblightning.la dependency
3178 in case of running "make check" before building the library.
3180 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3182 * lightning/Makefile.am, lightning/asm-common.h,
3183 lightning/core-common.h, lightning/fp-common.h,
3184 lightning/funcs-common.h, lightning/i386/Makefile.frag,
3185 lightning/i386/asm-32.h, lightning/i386/asm-64.h,
3186 lightning/i386/asm.h, lightning/i386/core-32.h,
3187 lightning/i386/core-64.h, lightning/i386/core.h,
3188 lightning/i386/fp-32.h, lightning/i386/fp-64.h,
3189 lightning/i386/fp.h, lightning/i386/funcs.h,
3190 lightning/ppc/asm.h, lightning/ppc/core.h,
3191 lightning/ppc/fp.h, lightning/ppc/funcs.h,
3192 lightning/sparc/asm.h, lightning/sparc/core.h,
3193 lightning/sparc/fp.h, lightning/sparc/funcs.h:
3194 Removed. The core logic is used in the new code, and new mips
3195 and arm ports will be added. At first, sparc will not be
3196 supported as it has not yet been ported to the new engine.
3198 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3200 * tests/Makefile.am, tests/3to2.c, tests/3to2.ok, tests/add.c,
3201 tests/add.ok, tests/allocai.c, tests/allocai.ok, tests/bp.c,
3202 tests/bp.ok, tests/divi.c, tests/divi.ok, tests/fib.c, tests/fib.ok,
3203 tests/fibdelay.c, tests/fibdelay.ok, tests/fibit.c, tests/fibit.ok,
3204 tests/funcfp.c, tests/funcfp.ok, tests/incr.c, tests/incr.ok,
3205 tests/ldst.c, tests/ldst.ok, tests/ldxi.c, tests/ldxi.ok,
3206 tests/modi.c, tests/modi.ok, tests/movi.c, tests/movi.ok,
3207 tests/printf.c, tests/printf.ok, tests/printf2.c, tests/printf2.ok,
3208 tests/ret.c, tests/ret.ok, tests/rpn.c, tests/rpn.ok, tests/rpnfp.c,
3209 tests/rpnfp.ok, tests/sete.c, tests/sete.ok, tests/testfp.c,
3210 tests/testfp.ok, tests-run-test: Removed previous test suite, in
3211 favor of a newer one in the check subdirectory.
3213 * check/3to2.ok, check/3to2.tst, check/add.ok, check/add.tst,
3214 check/allocai.ok, check/allocai.tst, check/bp.ok, check/bp.tst,
3215 check/divi.ok, check/divi.tst, check/fib.ok, check/fib.tst:
3216 New sample input for the new test program, loosely matching
3217 several of the previous test cases.
3219 * check/Makefile.am: New test suite makefile.
3221 * check/check.sh, check/run-test: New wrapper files for the
3224 * check/lightning.c: New file. The main driver of the new test
3225 suite, that compiles to a parser of a very simple assembly like
3226 language, generates jit and executes it.
3228 * check/all.tst: New file. A generic debug and sample test file
3229 with a directive to prevent it from being executed, and useful to
3230 read disassembly of all possible instructions, using a fixed set
3233 * include/Makefile.am, include/lightning.h,
3234 include/lightning/Makefile.am, include/lightning/jit_arm.h,
3235 include/lightning/jit_mips.h, include/lightning/jit_ppc.h,
3236 include/lightning/jit_private.h, include/lightning/jit_x86.h,
3237 lib/Makefile.am, lib/jit_disasm.c, lib/jit_print.c,
3238 lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c,
3239 lib/jit_x86.c, lib/lightning.c: New files. These files are
3240 written from scratch, only by <pcpa@gnu.org>, and have now
3241 copyright assignment to the FSF. This is the core of the new
3242 lightning rework. Previously it was integrated in code with
3243 a garbage collector and several custom types like vectors and
3244 hash tables, so this first code merge with lightning converts
3245 that code into a library extracting only the jit bits, and at
3246 first only for x86_64 GNU/Linux.
3248 * lightning.h, m4/lightning.m4: Removed. These are no longer
3249 required in the new lightning code.
3251 .gitignore, Makefile.am, configure.ac: Update for the new
3254 2012-12-02 Paulo Andrade <pcpa@gnu.org>
3255 * .cvsignore: Removed for extra cleanup.
3257 * build-aux: Rename directory to m4.
3259 * m4: Renamed to "default" name and for consistency with merge
3260 with code rework to be imported in lightning.
3262 * .gitignore, configure.ac, Makefile.am, doc/Makefile.am:
3263 Update for build-aux to m4 rename.
3265 2012-12-01 Paulo Andrade <pcpa@gnu.org>
3267 * opcode/Makefile.am, opcode/Makefile.in, opcode/ansidecl.h,
3268 opcode/bfd.h, opcode/dis-asm.h, opcode/dis-buf.c, opcode/disass.c,
3269 opcode/i386-dis.c, opcode/i386.h, opcode/ppc-dis.c, opcode/ppc-opc.c,
3270 opcode/ppc.h, opcode/sparc-dis.c, opcode/sparc-opc.c, opcode/sparc.h,
3271 opcode/sysdep.h: Removed. Do not bundle GNU binutils files.
3273 * aclocal.m4, configure, Makefile.in, config.h.in, doc/Makefile.in,
3274 lightning/Makefile.in, tests/Makefile.in: Removed. Do not maintain
3275 autogenerated files that also generate too much diff noise when
3278 * build-aux/help2man, build-aux/texinfo.tex, build-aux/texi2dvi:
3279 Removed. Buildenvironment must have an up to date version from
3282 * build-aux/config.guess, build-aux/config.sub, build-aux/depcomp,
3283 build-aux/install-sh build-aux/mdate-sh build-aux/missing: Removed.
3284 Do not maintain a copy of automake files in git. Release tarballs
3285 must use an up to date version.
3287 * lightningize.in, doc/lightningize.1: Removed. Do not encourage
3288 bundling lightning in other packages. It should use a system package
3289 or a proper thirdy part subdirectory.
3291 * INSTALL: Removed. Autoreconf removes it and creates a symlink
3292 when regenerating files, so, avoid conflicts in git and let
3293 automake create the symlink.
3295 * .gitignore: Add INSTALL and autogenerated files.
3297 * configure.ac, Makefile.am: Update for removal of opcode subdir,
3298 auto generated files and lightningize.
3300 * tests/Makefile.am, tests/3to2.c, tests/add.c, tests/bp.c,
3301 tests/fib.c, tests/fibdelay.c, tests/fibit.c, tests/funcfp.c,
3302 tests/incr.c, tests/printf.c, tests/rpn.c, tests/rpnfp.c,
3303 tests/sete.c, tests/testfp.c: Update for removal of opcode subdir.
3305 * doc/Makefile.am: Update for removal of lightningize.
3307 * configure.ac, lightning/ppc/funcs.h, lightning/sparc/funcs.h,
3308 lightning/i386/fp.h, lightning/i386/core.h, lightning/i386/asm.h,
3309 tests/3to2.c, tests/add.c, tests/bp.c, tests/fib.c, tests/fibdelay.c,
3310 tests/fibit.c, tests/funcfp.c, tests/incr.c, tests/printf.c,
3311 tests/rpn.c, tests/rpnfp.c, tests/sete.c, tests/testfp.c:
3312 Remove LIGHTNING_CROSS, it is half supported and incomplete.
3314 * tests/3to2.c, tests/funcfp.c, tests/rpnfp.c: Remove preprocessor
3315 check on JIT_FPR. If no hardware registers are available, the backend
3316 must provide an alternative for software float.
3318 * lightning/ppc/core.h, lightning/sparc/core.h, tests/Makefile.am:
3319 Remove JIT_NEED_PUSH_POP. It is absolutely not trivial to implement
3320 properly on some backends due to stack alignment constraints, and
3321 whenever it is required, using jit_allocai and using a properly
3322 aligned stack vector, or a heap buffer, is better.
3324 * tests/push-pop.c, tests/push-pop.ok: Removed due to
3325 JIT_NEED_PUSH_POP no longer available.
3327 2011-02-28 Paolo Bonzini <bonzini@gnu.org>
3329 * lightning/i386/core-64.h: Add jit_add{c,x}{i,r}_l, jit_mulr_{l,ul}_,
3330 fix jit_mul{i,r}_{l,ul}.
3332 2010-08-20 Paolo Bonzini <bonzini@gnu.org>
3334 * lightning/i386/fp-64.h: Return patch address from jit_bXYr_{f,d}.
3335 Reported by Paulo César Pereira de Andrade.
3336 * lightning/ppc/fp.h: Likewise.
3337 * lightning/sparc/fp.h: Implement FP branches.
3339 2010-08-18 Paolo Bonzini <bonzini@gnu.org>
3341 * lightning/i386/fp-64.h: Fix jp in jit_bner_{f,d}.
3343 2010-08-18 Paolo Bonzini <bonzini@gnu.org>
3345 * lightning/i386/fp-32.h: Fix -D_ASM_SAFETY compilation.
3346 Reported by Paulo César Pereira de Andrade.
3348 2010-08-15 Paolo Bonzini <bonzini@gnu.org>
3350 * tests/ldst.c: Update.
3351 * tests/Makefile.am: Use -ffloat-store to compile it.
3353 2010-08-15 Paolo Bonzini <bonzini@gnu.org>
3355 * lightning/i386/core.h (jit_ldr_c, jit_ldxr_c, jit_ldr_s,
3356 jit_ldxr_s): Move...
3357 * lightning/i386/core-32.h: ... here.
3358 * lightning/i386/core-64.h (jit_ldr_c, jit_ldxr_c, jit_ldr_s):
3359 Use movsbq and movswq.
3361 2010-08-10 Paulo César Pereira de Andrade <pcpa@mandriva.com.br>
3363 * lightning/i386/core-32.h (jit_replace): Use MOVLrr, not MOVLir.
3364 (jit_movbrm): Check index register as well.
3365 * lightning/i386/fp-64.h: Add jit_extr_f_d and jit_extr_d_f.
3366 * lightning/fp-common.h: Add jit_extr_f_d and jit_extr_d_f.
3368 2010-07-28 Paolo Bonzini <bonzini@gnu.org>
3370 * tests/Makefile.am: Add ldst test.
3371 * tests/Makefile.in: Regenerate.
3372 * tests/ldst.c: New.
3373 * tests/ldst.ok: New.
3375 2010-07-28 Paolo Bonzini <bonzini@gnu.org>
3377 * THANKS: Add Paulo Cesar Pereira de Andrade.
3378 * doc/porting.texi: Fix ordering of arguments in jit_stxi.
3379 * lightning/i386/core-32.h (jit_replace): Remove cmp argument.
3380 * lightning/i386/fp-64.h (jit_movi_f): Fix.
3382 2010-07-26 Paolo Bonzini <bonzini@gnu.org>
3384 * lightning/i386/core-32.h (jit_replace): Move here (removed
3387 2010-07-19 Paolo Bonzini <bonzini@gnu.org>
3389 * build-aux/lightning.m4: Always set and replace lightning_frag.
3390 * Makefile.in: Regenerate.
3391 * aclocal.m4: Regenerate.
3392 * config.h.in: Regenerate.
3393 * configure: Regenerate.
3394 * doc/Makefile.in: Regenerate.
3395 * doc/lightningize.1: Regenerate.
3396 * doc/version.texi: Regenerate.
3397 * lightning/Makefile.in: Regenerate.
3398 * opcode/Makefile.in: Regenerate.
3399 * tests/Makefile.in: Regenerate.
3401 2009-03-01 Paolo Bonzini <bonzini@gnu.org>
3403 * lightning/i386/core-64.h: Use Mike's macros for x86-64 too.
3404 * lightning/i386/core.h: Remove jit_replace.
3406 2009-02-27 Mike Spivey <mike@comlab.ox.ac.uk>
3408 * lightning/i386/core.h: Rewrite shift-handling macros.
3409 * lightning/fp-common.h: Fix jit_extr_{f_d,d_f}.
3411 2009-02-17 Mike Spivey <mike@comlab.ox.ac.uk>
3413 * lightning/i386/core.h: Fix blunder in operand order.
3415 2009-02-17 Paolo Bonzini <bonzini@gnu.org>
3417 * lightning/i386/fp-32.h: Another fix to jit_fp_btest.
3419 2009-02-17 Paolo Bonzini <bonzini@gnu.org>
3421 * lightning/fp-common.h: Define double branches if missing.
3422 * lightning/i386/asm.h: Define JC and JNC mnemonics.
3423 * lightning/i386/fp-32.h: Fix jit_fp_btest. All reported
3426 2008-10-09 Paolo Bonzini <bonzini@gnu.org>
3428 * lightning/ppc/funcs.h (jit_flush_code): Subtract 1 from end.
3429 Reported by Eli Barzilay and Matthew Flatt.
3431 2008-08-23 Nix <nix@esperi.org.uk>
3433 * lightning/i386/Makefile.frag: fp-32.h and fp-64.h are target files.
3435 2008-07-02 Laurent Michel <ldm@engr.uconn.edu>
3437 * lightning/ppc/funcs.h (jit_flush_code): modified the computation
3438 of start/end. The pointer arithmetic was done without casting. It
3439 prevented compilation with recent gcc versions.
3440 * lightning/ppc/core.h (jit_pushr_i): The offset for the store was
3441 incorrect. Should have been 4 bytes below SP (not above).
3442 * lightning/ppc/core.h (jit_popr_i): The offset for the load was
3443 incorrect. Should have been 0 (not +8).
3445 2008-06-17 Paolo Bonzini <bonzini@gnu.org>
3447 * lightning/i386/asm-64.h: Forward IMULQir to IMULQirr,
3448 fix REXQ order for IMULQirr.
3450 2008-06-17 Paolo Bonzini <bonzini@gnu.org>
3452 * lightning/i386/core.h: Fix _rN vs. _rR.
3454 2008-06-16 Paolo Bonzini <bonzini@gnu.org>
3456 * lightning/i386/core.h: Use jit_save in jit_replace. Move JIT_R
3458 * lightning/i386/core-32.h: ... here; define jit_save so that
3459 the core.h has no effect on the 32-bit backend.
3460 * lightning/i386/core-64.h: Place JIT_R1/JIT_R2 in R10/R11,
3461 place outgoing arguments in the right spot from the beginning,
3462 define jit_save, fix jit_reg8/jit_reg16.
3464 2008-06-15 Paolo Bonzini <bonzini@gnu.org>
3466 * lightning/i386/core-64.h: Rewrite argument passing to
3467 support up to 6 arguments and generate less code.
3469 2008-06-14 Laurent Michel <ldm@thorgal.homelinux.org>
3471 * lightning/i386/core-64.h (jit_movi_l): When the operand is 0,
3472 the XOR should be on a quadword.
3473 * lightning/i386/core-64.h (jit_prolog): Keep 16-byte stack
3475 (jit_ret): Always use LEAVE.
3477 2008-06-13 Laurent Michel <ldm@thorgal.homelinux.org>
3479 * lightning/i386/core-64.h: Add (void) casts for C++ compatibility.
3480 * lightning/i386/asm.h: Likewise.
3482 2008-06-12 Paolo Bonzini <bonzini@gnu.org>
3484 * lightning/i386/core.h: Move JIT_V definition...
3485 * lightning/i386/core-32.h: ... here.
3486 * lightning/i386/core-64.h: ... and here. Avoid dancing between
3487 RSI/RDI and R12/R13, and place JIT_V1/JIT_V2 in R12/R13.
3489 2008-06-11 Paolo Bonzini <bonzini@gnu.org>
3491 * build-aux/lightning.m4: Adjust LIGHTNING_BACKENDS, don't
3492 use suffix support to distinguish i386/x86_64.
3493 * lightning/i386/Makefile.frag: Use LIGHTNING_TARGET_FILES
3494 to distribute *-32.h and *-64.h files now.
3495 * lightning/i386/asm-i386: Moved to...
3496 * lightning/i386/asm.h: Include the appropriate subtarget file.
3497 * lightning/i386/core-i386: Moved to...
3498 * lightning/i386/core.h: Include the appropriate subtarget file.
3499 * lightning/i386/fp.h: New, include the appropriate subtarget file.
3500 * lightning/i386/asm-32: Do not include asm-i386.h.
3501 * lightning/i386/asm-64.h: Likewise.
3502 * lightning/i386/core-32: Do not include core-i386.h.
3503 * lightning/i386/core-64.h: Likewise.
3504 * lightning/Makefile.am: Adjust for renamed files.
3506 * configure.ac: Define LIGHTNING_TARGET here.
3507 * opcode/disass.c: Change list of valid LIGHTNING_TARGET values.
3509 * lightningize.in: Robustify against missing subtarget files.
3511 2008-06-11 Paolo Bonzini <bonzini@gnu.org>
3513 * lightning/i386/core-32.h: Use MOVLir instead of jit_movi_l
3514 to implement jit_movi_p.
3516 2008-06-11 Paolo Bonzini <bonzini@gnu.org>
3518 * lightning/i386/core-32.h: Use separate __APPLE__ and SysV
3519 prolog/ret macros. Subtract 12 bytes in __APPLE__ case to
3520 keep stack aligned, and always use LEAVE in the epilog.
3522 2008-06-11 Paolo Bonzini <bonzini@gnu.org>
3524 * lightning/i386/core-i386.h: Fix C++ incompatibility.
3526 2008-06-10 Laurent Michel <ldm@engr.uconn.edu>
3528 * lightning/i386/core-i386.h: Fix jit_replace8 for
3529 case when one of the operands is _EAX.
3531 2008-05-19 Paolo Bonzini <bonzini@gnu.org>
3533 * tests/run-test: Avoid CRLF issues on mingw.
3535 2008-03-21 Paolo Bonzini <bonzini@gnu.org>
3537 * lightning/i386/core-64.h: Fix jit_{ld,st}{,x}i_{i,l}.
3538 Remove jit_ld{,x}i_ul.
3539 * lightning/core-common.h: Make jit_ld{,x}{i,r}_ul
3540 always a synonym of the _l variant.
3541 * doc/porting.texi: Document this.
3543 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3545 * lightning/i386/core-64.h: Fix uses of jit_qop_.
3547 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3549 * lightning/i386/core-64.h: Add boolean operations.
3551 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3553 * lightning/i386/asm-64.h: Add LEAQmr.
3555 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3557 * lightning/i386/core-64.h: Misc bugfixes.
3559 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3561 * lightning/i386/core-i386.c: Remove jit_ldr_i, jit_ldxr_i.
3562 * lightning/i386/core-32.h: Add jit_ldr_i, jit_ldxr_i.
3563 * lightning/i386/core-64.h: Add jit_ld{r,xr,i,xi}_{ui,l,ul};
3564 move jit_ldr_i, jit_ldxr_i, jit_str_l, jit_stxr_l with others.
3566 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3568 * lightning/asm-common.h: Add _s32P.
3570 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3572 * lightning/i386/core-64.h: Implement long mul/div/mod.
3574 2008-03-19 Paolo Bonzini <bonzini@gnu.org>
3576 * lightning/i386/asm-i386.h: Cast memory address to long for JCCim.
3578 2008-03-15 Paolo Bonzini <bonzini@gnu.org>
3580 * lightning/asm-common.h: Add underscores around __unused__
3583 2008-03-15 Paolo Bonzini <bonzini@gnu.org>
3585 * lightning/ppc/core.h: Avoid some "value computed is not used"
3587 * lightnings/tests/allocai.c: Silence other warnings.
3589 2008-03-14 Paolo Bonzini <bonzini@gnu.org>
3591 * lightningize.in: Fix some problems (not all).
3593 2008-03-14 Paolo Bonzini <bonzini@gnu.org>
3595 * lightning/i386/core-32.h: Avoid some "value computed is not used"
3596 warnings; reported by Sam Steingold.
3598 2008-03-08 Paolo Bonzini <bonzini@gnu.org>
3600 * lightning/i386/core-32.h: Fix stxr_c(_EAX, _EBX, _ESI).
3602 2008-02-13 Paolo Bonzini <bonzini@gnu.org>
3604 * lightning/i386/asm-32.h: Avoid redefinition of _r1, reported by
3606 * lightning/i386/asm-64.h: Likewise.
3608 2008-02-08 Paolo Bonzini <bonzini@gnu.org>
3610 * lightning/i386/asm-i386.h: Don't define _VOID, reported
3613 2008-02-03 Paolo Bonzini <bonzini@gnu.org>
3615 * build-aux/lightning.m4: Add --with-lightning-prefix option, suggested
3618 2008-01-14 Paolo Bonzini <bonzini@gnu.org>
3620 * lightning/i386/core-64.h: Use CALLsr, not CALLLsr.
3622 2008-01-13 Paolo Bonzini <bonzini@gnu.org>
3624 * lightning/i386/core-i386.h: Move jit_calli and jit_callr...
3625 * lightning/i386/core-32.h: ... here.
3626 * lightning/i386/core-64.h: Redefine them.
3628 2008-01-05 Paolo Bonzini <bonzini@gnu.org>
3630 * lightning/i386/fp-32.h: Fix sub(a,0,a).
3631 * lightning/tests/3to2.c: Add new testcases.
3632 * lightning/tests/3to2.ok: Add new testcases.
3634 2008-01-02 Paolo Bonzini <bonzini@gnu.org>
3636 * lightning/i386/fp-32.h: Fix sub(a,b,a) with a ~= JIT_FPR0.
3637 * lightning/tests/3to2.c: New.
3638 * lightning/tests/3to2.ok: New.
3640 2007-11-07 Paolo Bonzini <bonzini@gnu.org>
3642 * opcode/Makefile.am: Fix AM_CPPFLAGS.
3644 2007-08-12 Paolo Bonzini <bonzini@gnu.org>
3646 * lightning/i386/core-i386.h: Improve encoding of set* instructions.
3647 * lightning/i386/core-64.h: Fix jit_bra_l.
3648 * tests/sete.c: New.
3649 * tests/sete.ok: New.
3651 2007-06-29 Paolo Bonzini <bonzini@gnu.org>
3653 * tests/bp.c: Upgrade to GPL/LGPLv3.
3654 * lightning/i386/asm-32.h: Upgrade to GPL/LGPLv3.
3655 * lightning/i386/asm-64.h: Upgrade to GPL/LGPLv3.
3656 * lightning/i386/core-32.h: Upgrade to GPL/LGPLv3.
3657 * lightning/i386/core-64.h: Upgrade to GPL/LGPLv3.
3658 * lightning/i386/fp-64.h: Upgrade to GPL/LGPLv3.
3659 * lightning/sparc/asm.h: Upgrade to GPL/LGPLv3.
3660 * lightning/sparc/core.h: Upgrade to GPL/LGPLv3.
3661 * lightning/sparc/fp.h: Upgrade to GPL/LGPLv3.
3662 * lightning/sparc/funcs.h: Upgrade to GPL/LGPLv3.
3663 * lightning/i386/asm-i386.h: Upgrade to GPL/LGPLv3.
3664 * lightning/i386/core-i386.h: Upgrade to GPL/LGPLv3.
3665 * lightning/i386/fp-32.h: Upgrade to GPL/LGPLv3.
3666 * lightning/i386/funcs.h: Upgrade to GPL/LGPLv3.
3667 * lightning/ppc/asm.h: Upgrade to GPL/LGPLv3.
3668 * lightning/ppc/core.h: Upgrade to GPL/LGPLv3.
3669 * lightning/ppc/fp.h: Upgrade to GPL/LGPLv3.
3670 * lightning/ppc/funcs.h: Upgrade to GPL/LGPLv3.
3671 * lightning.h: Upgrade to GPL/LGPLv3.
3672 * tests/add.c: Upgrade to GPL/LGPLv3.
3673 * tests/fib.c: Upgrade to GPL/LGPLv3.
3674 * tests/testfp.c: Upgrade to GPL/LGPLv3.
3675 * tests/fibdelay.c: Upgrade to GPL/LGPLv3.
3676 * tests/fibit.c: Upgrade to GPL/LGPLv3.
3677 * tests/funcfp.c: Upgrade to GPL/LGPLv3.
3678 * tests/incr.c: Upgrade to GPL/LGPLv3.
3679 * tests/printf.c: Upgrade to GPL/LGPLv3.
3680 * tests/printf2.c: Upgrade to GPL/LGPLv3.
3681 * tests/rpn.c: Upgrade to GPL/LGPLv3.
3682 * tests/rpnfp.c: Upgrade to GPL/LGPLv3.
3683 * lightning/asm-common.h: Upgrade to GPL/LGPLv3.
3684 * lightning/core-common.h: Upgrade to GPL/LGPLv3.
3685 * lightning/fp-common.h: Upgrade to GPL/LGPLv3.
3686 * lightning/funcs-common.h: Upgrade to GPL/LGPLv3.
3687 * opcode/dis-buf.c: Upgrade to GPL/LGPLv3.
3688 * opcode/disass.c: Upgrade to GPL/LGPLv3.
3689 * opcode/i386-dis.c: Upgrade to GPL/LGPLv3.
3690 * opcode/sparc-dis.c: Upgrade to GPL/LGPLv3.
3691 * opcode/sparc-opc.c: Upgrade to GPL/LGPLv3.
3692 * lightningize.in: Upgrade to GPL/LGPLv3.
3693 * opcode/bfd.h: Upgrade to GPL/LGPLv3.
3694 * opcode/i386.h: Upgrade to GPL/LGPLv3.
3695 * opcode/sparc.h: Upgrade to GPL/LGPLv3.
3697 2007-01-26 Thomas Girard <thomas.g.girard@free.fr>
3699 * lightning/Makefile.am: Add clean-local target.
3701 2006-12-02 Paolo Bonzini <bonzini@gnu.org>
3703 * lightning/i386/asm-i386.h: Add CVTTS?2SIL.
3704 * lightning/i386/asm-64.h: Add CVTTS?2SIQ.
3705 * lightning/i386/fp-64.h: Use it.
3707 * lightning/Makefile.am: Place files in nodist_lightning_HEADERS.
3709 2006-11-23 Paolo Bonzini <bonzini@gnu.org>
3711 * lightning/core-common.h: Add casts in "*i_p" variants.
3712 * lightning/i386/asm-32.h: Add _r1.
3713 * lightning/i386/asm-64.h: Likewise, and add SSE instructions.
3714 * lightning/i386/asm-i386.h: Merge SSE instructions from Gwenole.
3715 Use short form for 16-bit AX instructions. Remove _r1
3716 * lightning/i386/core-64.h: Add FP ABI support in its infancy.
3717 * lightning/i386/core-i386.h: Move jit_arg_f and jit_arg_d...
3718 * lightning/i386/core-32.h: ... and jit_prepare_f and jit_prepare_d...
3719 * lightning/i386/fp-32.h: ... here.
3720 * lightning/i386/fp-64.h: Write the code.
3721 * lightning/sparc/fp.h: Fix jit_extr_{f_d,d_f} register order.
3723 2006-11-22 Paolo Bonzini <bonzini@gnu.org>
3725 * lightning/i386/asm-i386.h: Move x86-64 instructions...
3726 * lightning/i386/asm-64.h: ... here.
3727 * lightning/i386/fp-32.h: Fix bugfixes worked around in froofyJIT.
3729 * lightning/sparc/fp.h: Likewise.
3730 * lightning/ppc/fp.h: Likewise.
3731 * lightning/fp-common.h: Adjust for JIT_FPRET.
3732 * tests/funcfp.c: Adjust for JIT_FPRET.
3733 * tests/rpnfp.c: Adjust for JIT_FPRET.
3735 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3737 * lightning/i386/asm-i386.h: Add an underscore to macros without
3740 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3742 * lightning/i386/core-i386.h: Move jit_movip, jit_check8, jit_reg8,
3743 jit_reg16, jit_movbrm...
3744 * lightning/i386/core-32.h: ... here.
3745 * lightning/i386/core-64.h: Redefine them. Fix other bugs.
3747 * tests/printf.c: Do not do a varargs call.
3749 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3751 * lightning/i386/asm-i386.h: Check in rewrite from Basilisk II.
3752 * lightning/i386/asm-32.h: Adjust.
3753 * lightning/i386/asm-64.h: Adjust.
3754 * lightning/i386/fp-32.h: Adjust.
3756 * lightning/i386/core-32.h: Adjust. Add jit_{ld,ldx,st,stx}i*.
3757 * lightning/i386/core-64.h: Adjust. Add jit_{ld,ldx,st,stx}i*.
3758 * lightning/i386/core-i386.h: Adjust. Remove these patterns.
3760 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3762 * lightning/i386/asm-i386.h: Merge 64-bit cleanliness changes from
3765 * lightning/i386/asm-64.h: Likewise.
3767 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3768 Ludovic Courtes <ludo@chbouib.org>
3770 * lightning/i386/core-32.h: Disable jit_push and jit_pop if stack not
3772 * lightning/i386/core-64.h: Disable jit_push and jit_pop if stack not
3774 * lightning/sparc/core.h: Merge final implementation of jit_pushr and
3776 * lightning/ppc/core.h: Fix implementation of jit_pushr and jit_popr to
3777 work (more or less) across function calls.
3779 * tests/push-pop.c, tests/push-pop.ok: New test.
3780 * tests/Makefile.am: Run it.
3782 2006-11-20 Paolo Bonzini <bonzini@gnu.org>
3784 * lightning/asm-common.h: Make 64-bit safe.
3785 * lightning/i386/funcs.h: Make 64-bit safe.
3787 * lightning/i386/asm-64.h: More merge from mzscheme.
3788 * lightning/i386/asm-i386.h: More merge from mzscheme.
3789 * lightning/i386/core-32.h: More merge from mzscheme.
3790 * lightning/i386/core-64.h: More merge from mzscheme.
3791 * lightning/i386/core-i386.h: More merge from mzscheme.
3793 * tests/rpnfp.c, tests/testfp.c, tests/funcfp.c: Skip if no
3794 floating-point support.
3796 2006-11-04 Paolo Bonzini <bonzini@gnu.org>
3798 * tests/rpn.c: Remove pushr/popr.
3800 2006-11-04 Paolo Bonzini <bonzini@gnu.org>
3802 * lightning/ppc/core.h: Implement jit_allocai, define JIT_FP to be R1.
3803 * lightning/ppc/funcs.h: Store frame size into _jitl. Store R1 before
3804 the STMW, so that the offset is unchanged when we patch the STMW.
3805 * lightning/i386/core.h: Define JIT_FP to be EBP.
3806 * lightning/i386/core-32.h: Implement jit_allocai, put LEAVE in the
3807 epilog if jit_allocai was used.
3808 * lightning/i386/core-64.h: Implement jit_allocai, put LEAVE in the
3809 epilog if jit_allocai was used.
3811 2006-11-04 Ludovic Courtes <ludo@chbouib.org>
3813 * lightning/sparc/core.h: Implement jit_allocai.
3814 * tests/allocai.c: New.
3815 * tests/Makefile.am: Point to new tests.
3817 2006-11-03 Paolo Bonzini <bonzini@gnu.org>
3819 * lightning/ppc/core.h: Fix jit_bms using BNE rather than BGT.
3820 "AND." does signed comparisons.
3822 2006-10-31 Paolo Bonzini <bonzini@gnu.org>
3824 * doc/porting.texi: Rename JIT_FP to JIT_AP.
3825 * lightning/core-common.h: Likewise.
3826 * lightning/i386/core-i386.h: Likewise.
3827 * lightning/fp-common.h: Provide default versions of jit_getarg_[fd].
3828 * lightning/i386/fp-32.h: Don't provide jit_getarg_[fd].
3829 * lightning/ppc/fp.h: Likewise.
3831 2006-10-31 Ludovic Courtes <ludo@chbouib.org>
3833 * doc/using.texi (The instruction set): Clarified the use of `JIT_RET' and
3834 documented `jit_retval'.
3835 * tests/ret.c (generate_function_proxy): After `jit_finish', use
3836 `jit_retval_i' to move FUNC's return value into the correct register.
3838 2006-10-31 Paolo Bonzini <bonzini@gnu.org>
3839 Ludovic Courtes <ludo@chbouib.org>
3841 * tests/divi.c, tests/divi.ok, tests/movi.c, tests/movi.ok: New.
3842 * tests/ldxi.c: Ensure large pointer is generated.
3843 * tests/Makefile.am: Point to new tests.
3844 * lightning.h: Include funcs-common.h before funcs.h.
3845 * lightning/sparc/core.h: Fix bugs in modi/divi.
3847 2006-10-30 Paolo Bonzini <bonzini@gnu.org>
3849 * lightning/Makefile.am: Use "ln -sf".
3850 * lightning/core-common.h: Define jit_negr_l if necessary.
3852 2006-10-30 Paolo Bonzini <bonzini@gnu.org>
3854 * lightning/i386/asm.h (MOVS*, MOVZ*): Use correct _r[124] macros.
3856 2006-10-29 Paolo Bonzini <bonzini@gnu.org>
3858 * configure.ac: Use lightning.m4 macros.
3859 * lightning.m4: Refactor to use common code in configure.ac. Move...
3860 * build-aux/lightning.m4: ... here.
3861 * lightningize.in: Support suffixes.
3862 * opcode/disass.in: Adapt to changes in configure.ac.
3864 * lightning/ppc/funcs.h: Use __APPLE__ instead of _CALL_DARWIN.
3865 * lightning/i386/core-32.h: Likewise.
3867 2006-10-26 Paolo Bonzini <bonzini@gnu.org>
3869 * configure.ac: Fix compilation test.
3870 * lightning/Makefile.am: Symlink LIGHTNING_TARGET_FILES in
3871 non-distribution mode.
3872 * lightning/i386/Makefile.frag: Use LIGHTNING_TARGET_FILES.
3874 2006-10-26 Paolo Bonzini <bonzini@gnu.org>
3876 * configure.ac: Subst cpu.
3877 * lightning/core-common.h: Make tests pass on i386.
3878 * lightning/i386/asm-32.h: Make tests pass on i386.
3879 * lightning/i386/asm-64.h: Make tests pass on i386.
3880 * lightning/i386/asm-i386.h: Make tests pass on i386.
3881 * lightning/i386/core-32.h: Make tests pass on i386.
3882 * lightning/i386/core-64.h: Make tests pass on i386.
3883 * lightning/i386/core-i386.h: Make tests pass on i386.
3884 * tests/Makefile.am: Include files from cpu directory.
3886 2006-10-26 Paolo Bonzini <bonzini@gnu.org>
3888 * lightning/i386/asm.h: Move to asm-i386.h
3889 * lightning/i386/asm-32.h: New, from Matthew Flatt.
3890 * lightning/i386/asm-64.h: New, from Matthew Flatt.
3891 * lightning/i386/core.h: Move to core-i386.h
3892 * lightning/i386/core-32.h: New, from Matthew Flatt.
3893 * lightning/i386/core-64.h: New, from Matthew Flatt.
3894 * lightning/i386/fp.h: Move to fp-32.h
3895 * lightning/i386/fp-64.h: New, dummy.
3896 * lightning/i386/Makefile.frag: New.
3897 * lightning/Makefile.am: Support per-target Makefile fragments.
3898 * configure.ac: Support per-target Makefile fragments and CPU suffixes.
3900 2006-10-16 Paolo Bonzini <bonzini@gnu.org>
3902 * lightning/i386/i386.h (jit_flush_code): Fix syntax error. :-(
3904 2006-07-06 Paolo Bonzini <bonzini@gnu.org>
3905 Ludovic Courtes <ludovic.courtes@laas.fr>
3907 * doc/using.texi: Clarify "Using autoconf" section
3908 and rename it to "Bundling lightning"
3909 * lightning.m4: Work also if lightning is not bundled.
3911 2006-07-06 Paolo Bonzini <bonzini@gnu.org>
3912 Ludovic Courtes <ludovic.courtes@laas.fr>
3914 * lightning/ppc/core.h (_jit_mod): Replace with...
3915 (_jit_mod_big, _jit_mod_small): ... these.
3916 (jit_modi_i, jit_modi_ui): Rewrite.
3917 * tests/modi.c, tests/modi.ok: New tests.
3919 2006-05-18 Matthew Flatt <mflatt@cs.utah.edu>
3921 * lightning/i386/asm.h: Fix test for extending the mprotect area
3922 towards lower addresses.
3924 2006-05-16 Bruno Haible <bruno@clisp.org>
3926 * lightning/asm-common.h: Don't use __func__ nor __FUNCTION__ if
3927 not compiling with GNU C.
3929 2006-02-16 Paolo Bonzini <bonzini@gnu.org>
3931 * lightning/ppc/core.h: Fix jit_ldxi_* with big displacement.
3933 2006-01-23 Paolo Bonzini <bonzini@gnu.org>
3935 * configure.ac: Fix comments in config.h.in.
3937 2005-11-25 Paolo Bonzini <bonzini@gnu.org>
3939 * lightning/sparc/fp.h: Fix header comment.
3940 * lightning/ppc/fp.h: Fix header comment.
3942 2005-04-27 Paolo Bonzini <bonzini@gnu.org>
3944 * lightning/i386/asm.h (JCm, JCSm, JNCm, JNCSm): New.
3946 2004-11-26 Paolo Bonzini <bonzini@gnu.org>
3948 * lightning/ppc/funcs.h (_jit_epilog): Remove unused variable.
3950 2004-11-13 Paolo Bonzini <bonzini@gnu.org>
3952 * lightning/i386/funcs.h [__linux__]: Include sys/mman.h.
3954 2004-11-09 Paolo Bonzini <bonzini@gnu.org>
3956 * lightning/sparc/fp.h: Fix fp-to-integer conversions.
3957 * lightning/ppc/testfp.c: Test fp-to-integer conversions
3959 * lightning/ppc/testfp.ok: Adjust for the above.
3961 2004-11-08 Paolo Bonzini <bonzini@gnu.org>
3963 * lightning/ppc/testfp.c: Always flush code before
3966 2004-11-08 Paolo Bonzini <bonzini@gnu.org>
3968 * lightning/ppc/fp.h: Do not clobber f31.
3970 2004-11-08 Paolo Bonzini <bonzini@gnu.org>
3972 * lightning.h: New name of...
3973 * lightning-inst.h: ... this file.
3974 * lightning.h.in: Removed.
3976 * opcodes/disass.c: Include config.h.
3977 * tests/add.c: Include config.h.
3978 * tests/bp.c: Include config.h.
3979 * tests/fib.c: Include config.h.
3980 * tests/fibdelay.c: Include config.h.
3981 * tests/fibit.c: Include config.h.
3982 * tests/funcfp.c: Include config.h.
3983 * tests/incr.c: Include config.h.
3984 * tests/printf.c: Include config.h.
3985 * tests/printf2.c: Include config.h.
3986 * tests/rpn.c: Include config.h.
3987 * tests/rpnfp.c: Include config.h.
3988 * tests/testfp.c: Include config.h.
3990 2004-10-12 Paolo Bonzini <bonzini@gnu.org>
3992 * lightning/i386/fp.h: Fix bugs in conditional branches.
3994 2004-10-10 Paolo Bonzini <bonzini@gnu.org>
3996 * lightning/i386/funcs.h: Fix pasto in jit_flush_code.
3998 2004-10-08 Paolo Bonzini <bonzini@gnu.org>
4000 * lightning/ppc/fp.h: Optimized conditional branches.
4002 2004-09-20 Paolo Bonzini <bonzini@gnu.org>
4004 * lightning/ppc/asm.h: Fix more typos.
4006 2004-09-20 Paolo Bonzini <bonzini@gnu.org>
4008 * lightning/ppc/asm.h: Fix typos, replace `26' with JIT_AUX.
4010 2004-09-20 Paolo Bonzini <bonzini@gnu.org>
4012 * lightning/ppc/fp.h: Added conditional branches.
4014 2004-09-18 Laurent Michel <ldm@thorgal.homelinux.org>
4016 * lightning/ppc/fp.h (jit_unler_d, jit_unltr_d, jit_unger_d,
4017 jit_ungtr_d, jit_ltgt_d, jit_uneq_d): Implemented missing tests
4018 to fully support testfp.
4019 (jit_floorr_d_i, jit_ceilr_d_i, jit_roundr_d_i, jit_truncr_d_i):
4021 * lightning/ppc/asm.h: Added missing opcodes FCTIWZ and MTFSFI.
4022 * lightning/ppc/funcs.h (_jit_prolog): Fixed minor mistake in
4023 the initialization of _jitl.nextarg_geti, relying on the
4024 JIT_AUX macro as well to get the register offset.
4026 2004-09-07 Paolo Bonzini <bonzini@gnu.org>
4028 * lightning/ppc/funcs.h: Fix typo.
4030 2004-09-06 Paolo Bonzini <bonzini@gnu.org>
4032 * tests/funcfp.c: Use %g. Remove C99 variable declarations.
4033 * tests/testfp.c: Don't use __builtin_nan.
4035 * lightning/ppc/core.h: Add three V registers.
4036 * lightning/ppc/funcs.h: Adjust.
4038 * lightning/sparc/core.h: Some fixes related to FP argument passing.
4039 Move R0 to %g2, use %o7 for JIT_BIG2.
4040 * lightning/sparc/fp.h: Some fixes related to FP argument passing.
4042 2004-09-02 Paolo Bonzini <bonzini@gnu.org>
4044 * lightning/sparc/core.h: Add another V register,
4047 2004-07-15 Paolo Bonzini <bonzini@gnu.org>
4049 * lightning/i386/funcs.h: Implement jit_flush_code,
4050 in order to support Fedora's exec-shield.
4052 2004-07-14 Paolo Bonzini <bonzini@gnu.org>
4054 * lightning/core-common.h: Add more jit_extr_*_* macros.
4055 * lightning/doc/using.texi: Be clearer about the order
4056 of arguments in jit_extr_*_*.
4057 * lightning/doc/porting.texi: Add more jit_extr_*_* macros.
4058 * lightning/i386/fp.h: Fix typo in jit_extr_i_d.
4060 2004-07-14 Paolo Bonzini <bonzini@gnu.org>
4062 * lightning/ppc/funcs.h: Adjust offset of LR into
4063 stack frame if running under the Darwin ABI.
4065 2004-07-13 Paolo Bonzini <bonzini@gnu.org>
4067 * lightning/i386/fp.h: Rename jit_exti_d to jit_extr_i_d.
4069 2004-07-13 Paolo Bonzini <bonzini@gnu.org>
4071 * lightning/ppc/core.h: Fix thinko.
4073 * lightning/i386/core.h: Fix jit_lti_ui.
4074 * lightning/core-common.h: Add missing macros.
4076 * lightning/ppc/fp.h: Rename jit_neg_* to jit_negr_*.
4077 * lightning/i386/fp.h: Rename jit_neg_* to jit_negr_*.
4078 * lightning/sparc/fp.h: Rename jit_neg_* to jit_negr_*.
4079 * lightning/fp-common.h: Rename jit_neg_* to jit_negr_*.
4080 * doc/porting.texi: Add undocumented macros.
4082 2004-07-12 Paolo Bonzini <bonzini@gnu.org>
4084 * doc/porting.texi: Add missing macros.
4086 2004-07-12 Paolo Bonzini <bonzini@gnu.org>
4088 * lightning/ppc/funcs.h: Don't generate trampolines.
4089 Separate prolog and epilog generation.
4090 * lightning/ppc/core.h: Generate epilog explicitly.
4091 Don't reserve r31 anymore.
4092 * lightning/core-common.h: Remove call to jit_setup_code.
4094 2004-07-09 Paolo Bonzini <bonzini@gnu.org>
4096 * lightning/lightning.h.in: Avoid preprocessor warnings.
4097 * lightning/lightning-inst.h: Likewise.
4099 * lightning/i386/core.h: Define JIT_R, JIT_R_NUM, JIT_V,
4101 * lightning/ppc/core.h: Likewise.
4102 * lightning/sparc/core.h: Likewise.
4103 * lightning/i386/fp.h: Define JIT_FPR, JIT_FPR_NUM.
4104 * lightning/ppc/fp.h: Likewise.
4105 * lightning/sparc/fp.h: Likewise.
4106 * lightning/core-common.h: Define fixed register names.
4107 * lightning/fp-common.h: Likewise for FP regs.
4109 2004-07-09 Paolo Bonzini <bonzini@gnu.org>
4111 * lightning/ppc/funcs.h: Fix location where return address
4113 * lightning/i386/asm.h: Add a trailing _ to opcodes without
4115 * lightning/i386/core.h: Adjust for the above.
4117 2004-04-15 Paolo Bonzini <bonzini@gnu.org>
4119 * lightning/i386/fp.h: Change "and" to "_and"
4120 to satisfy C++ compilers.
4122 2004-04-14 Paolo Bonzini <bonzini@gnu.org>
4124 * lightning/sparc/fp.h: Use memcpy to implement jit_movi.
4125 * lightning/ppc/fp.h: Use memcpy to implement jit_movi.
4126 Move floating-point opcodes...
4127 * lightning/ppc/asm.h: ... here.
4129 2004-04-14 Paolo Bonzini <bonzini@gnu.org>
4131 * lightning/core-common.h: Add jit_finishr.
4132 * lightning/ppc/core.h: Add jit_callr and jit_finishr.
4133 * lightning/i386/core.h: Add jit_callr.
4134 * lightning/sparc/core.h: Add jit_callr. Fix typo.
4136 2004-04-14 Paolo Bonzini <bonzini@gnu.org>
4138 * lightning/i386/core.h: Fix pasto in jit_b*_ui.
4140 2004-03-30 Laurent Michel
4142 * lightning/ppc: Implement PowerPC floating point
4143 (ChangeLog entry missing).
4145 2004-03-12 Paolo Bonzini <bonzini@gnu.org>
4147 * lightning/fp-common.h: Load/store macros are not the
4148 same for floats and doubles anywhere, but jit_retval may be.
4149 * lightning/i386/asm.h: Fix = mistaken for == in ESCrri.
4150 * lightning/i386/core.h: Fix typo in jit_prepare_[fd].
4151 * lightning/i386/fp.h: Rewritten.
4152 * tests/testfp.c: Add tests for unordered comparisons.
4153 * tests/testfp.ok: Add results.
4155 2004-03-15 Paolo Bonzini <bonzini@gnu.org>
4157 Merge changes from Laurent Michel.
4159 * lightning/asm-common.h: Add _jit_I_noinc.
4160 * lightning/core-common.h: Support jit_init,
4161 jit_setup_code, jit_patch_at. Return patchable IP from
4163 * lightning/funcs-common.h: Provide defaults
4164 for jit_setup_code, jit_start_pfx, jit_end_pfx
4165 * lightning/i386/core.h: Add jit_patch_at, jit_patch_movi.
4166 * lightning/ppc/core.h: Likewise.
4167 * lightning/sparc/core.h: Likewise.
4168 * lightning/ppc/asm.h: Fix generation of branch destination
4169 displacements in _FB and _BB
4170 * lightning/ppc/core.h: Generate trampolines in the user
4172 * lightning/ppc/funcs.h: Add a few casts.
4173 * tests/bc.c: New testcase.
4175 * lightning/i386/asm.h: Wrap into #ifndef LIGHTNING_DEBUG.
4176 * lightning/ppc/asm.h: Wrap into #ifndef LIGHTNING_DEBUG.
4177 * lightning/sparc/asm.h: Wrap into #ifndef LIGHTNING_DEBUG.
4180 2004-03-09 Paolo Bonzini <bonzini@gnu.org>
4182 * lightning/sparc/fp.h: Rewrite. Move macros for
4183 FP code generation...
4184 * lightning/sparc/asm.h: ... here.
4185 * lightning/sparc/core.h: Rename jit_prepare to
4186 jit_prepare_i, jit_retval to jit_retval_i.
4187 * lightning/ppc/core.h: Rename jit_prepare to
4188 jit_prepare_i, jit_retval to jit_retval_i.
4189 * lightning/i386/core.h: Rename jit_prepare to
4190 jit_prepare_i, jit_retval to jit_retval_i.
4191 * lightning/core-common.h: Provide backwards
4192 compatible synonyms for the above.
4193 * lightning/fp-common.h: Rewrite.
4194 * lightning-inst.h: Include fp unconditionally.
4195 * lightning.h.in: Include fp unconditionally.
4196 * tests/Makefile.am: Enable fp tests.
4197 * tests/fib.c: Use jit_retval_i.
4198 * tests/fibit.c: Cast codeBuffer to char *.
4199 * tests/funcfp.c: Use new fp macros.
4200 * tests/printf.c: Use jit_retval_i.
4201 * tests/rpnfp.c: Use new fp macros.
4202 * tests/testfp.c: Use new fp macros.
4204 2004-03-02 Paolo Bonzini <bonzini@gnu.org>
4206 * lightning/i386/core.h: generate correct code when
4207 doing lt/le/ge/etc. on ESI and EDI. Use MOVZX/MOVSX
4209 * lightning/i386/asm.h: Add macros for MOVZX/MOVSX.
4210 Move macros for x87 here, and add many of them.
4211 * lightning/i386/fp.h: Use new macros for x87.
4213 2004-02-06 Paolo Bonzini <bonzini@gnu.org>
4215 * lightning/i386/core.h: avoid generating MOV reg, reg.
4216 * lightning/sparc/core.h: fix several bugs.
4217 * lightning/ppc/core.h: fix several bugs.
4218 * tests/rpn.c: rewritten.
4220 2004-01-08 Paolo Bonzini <bonzini@gnu.org>
4222 * tests/rpnfp.c: new example, suggested by Basile
4224 * tests/rpnfp.ok: new example.
4226 2003-12-12 Paolo Bonzini <bonzini@gnu.org>
4228 * tests/add.c: new test, suggested by Steve Dekorte.
4229 * tests/add.c: new test.
4231 2003-11-14 Paolo Bonzini <bonzini@gnu.org>
4232 John Redford <eirenik@hotmail.com>
4234 * lightning/asm-common.h: change the 'pc' field of _jit to
4235 be a union of various data types, because ISO C99 doesn't
4236 permit using ++ on a = cast. Change the incremented casts of
4237 _jit.pc to be _jit.x.uc_pc, _jit.x.us_pc, etc.
4238 * all files: change all non-cast instances of _jit.pc to be
4240 * lightning/i386/core.h: remove casts from jit_might.
4242 2003-05-25 Paolo Bonzini <bonzini@gnu.org>
4244 * lightning/i386/core.h: use JITSORRY in jit_replace
4245 * lightning/asm-common.h: define JITSORRY
4247 2003-05-14 Paolo Bonzini <bonzini@gnu.org>
4249 * lightning/i386/core.h: fix missing comma in several
4251 * lightning/core-common.h: fix long/unsigned long/pointer
4253 * lightning/ppc/funcs.h: correctly align stack pointer
4255 No changelogs for the assemblers (lightning directory) until 1.0
4257 2003-03-27 Paolo Bonzini <bonzini@gnu.org>
4259 * tests/printf2.c: new test
4261 2001-05-03 Paolo Bonzini <bonzini@gnu.org>
4263 * tests/printf.c: made the message platform independent
4265 2001-01-19 Paolo Bonzini <bonzini@gnu.org>
4267 * configure.in: support cross-assembling
4269 * disass/bfd.h, disass/dis-asm.h, disass/dis-buf.c,
4270 disass/i386-dis.c, disass/i386.h, disass/ppc-dis.c,
4271 disass/ppc.h, disass/ppc-opc.c, disass/sparc-dis.c,
4272 disass/sparc.h, disass/sparc-opc.c: new files, from GDB
4274 * disass/disass.c, disass/Makefile.am: new files
4276 * tests/fib.c, tests/fibit.c, tests/incr.c, tests/printf.c,
4277 tests/rpn.c, tests/testfp.c, tests/Makefile.am: support