deps/lightning/lib/jit_ia64.c

   1 /*
   2  * Copyright (C) 2013-2023  Free Software Foundation, Inc.
   3  *
   4  * This file is part of GNU lightning.
   5  *
   6  * GNU lightning is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as published
   8  * by the Free Software Foundation; either version 3, or (at your option)
   9  * any later version.
  10  *
  11  * GNU lightning is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  14  * License for more details.
  15  *
  16  * Authors:
  17  *      Paulo Cesar Pereira de Andrade
  18  */
  19
  20 #include <lightning.h>
  21 #include <lightning/jit_private.h>
  22
  23 #define jit_arg_reg_p(i)                ((i) >= 0 && (i) < 8)
  24 #if __BYTE_ORDER == __LITTLE_ENDIAN
  25 #  define C_DISP                        0
  26 #  define S_DISP                        0
  27 #  define I_DISP                        0
  28 #  define F_DISP                        0
  29 #else
  30 #  define C_DISP                        8 - sizeof(jit_int8_t)
  31 #  define S_DISP                        8 - sizeof(jit_int16_t)
  32 #  define I_DISP                        8 - sizeof(jit_int32_t)
  33 #  define F_DISP                        8 - sizeof(jit_float32_t)
  34 #endif
  35
  36 /*
  37  * Types
  38  */
  39 typedef jit_pointer_t jit_va_list_t;
  40
  41 /*
  42  * Prototypes
  43  */
  44 #define patch(instr, node)              _patch(_jit, instr, node)
  45 static void _patch(jit_state_t*,jit_word_t,jit_node_t*);
  46
  47 #if defined(__GNUC__)
  48 /* libgcc */
  49 extern void __clear_cache(void *, void *);
  50 #endif
  51
  52 #define PROTO                           1
  53 #  include "jit_ia64-cpu.c"
  54 #  include "jit_ia64-fpu.c"
  55 #  include "jit_fallback.c"
  56 #undef PROTO
  57
  58 /*
  59  * Initialization
  60  */
  61 jit_cpu_t               jit_cpu;
  62 jit_register_t          _rvs[] = {
  63     /* Always 0 */
  64     { 0,                 "r0"  },
  65     /* Global Pointer */
  66     { rc(sav)|1,         "r1"  },
  67     /* Used when a register cannot be allocated */
  68     { 2,                 "r2"  },
  69     /* First scratch register */
  70     { rc(gpr)|3,         "r3"  },
  71     /* Use r4 as lightning fp register */
  72     { rc(sav)|4,         "r4"  },
  73     /* Do not touch callee save registers not automatically spill/reloaded */
  74     { rc(sav)|5,         "r5"  },       { rc(sav)|6,            "r6"  },
  75     { rc(sav)|7,         "r7"  },
  76     /* Do not touch return register for the sake of simplicity, besides
  77      * having JIT_R0 being the same as JIT_RET usually an optimization */
  78     { 8,                 "r8"  },
  79     /* Return registers, use as temporaries */
  80     { rc(gpr)|9,         "r9"  },
  81     { rc(gpr)|10,        "r10" },       { rc(gpr)|11,           "r11" },
  82     /* Stack pointer */
  83     { rc(sav)|12,        "r12" },
  84     /* Thread pointer */
  85     { rc(sav)|13,        "r13" },
  86     /* (Usually) assembly temporaries */
  87     { rc(gpr)|31,        "r31" },       { rc(gpr)|30,           "r30" },
  88     { rc(gpr)|29,        "r29" },       { rc(gpr)|28,           "r28" },
  89     { rc(gpr)|27,        "r27" },       { rc(gpr)|26,           "r26" },
  90     { rc(gpr)|25,        "r25" },       { rc(gpr)|24,           "r24" },
  91     { rc(gpr)|23,        "r23" },       { rc(gpr)|22,           "r22" },
  92     { rc(gpr)|21,        "r21" },       { rc(gpr)|20,           "r20" },
  93     { rc(gpr)|19,        "r19" },       { rc(gpr)|18,           "r18" },
  94     { rc(gpr)|17,        "r17" },       { rc(gpr)|16,           "r16" },
  95     { rc(gpr)|15,        "r15" },       { rc(gpr)|14,           "r14" },
  96     /* Do not allow allocating r32-r41 as temoraries for the sake of
  97      * avoiding the need of extra complexity  in the non backend code */
  98     { rc(arg)|32,        "r32" },       { rc(arg)|33,           "r33" },
  99     { rc(arg)|34,        "r34" },       { rc(arg)|35,           "r35" },
 100     { rc(arg)|36,        "r36" },       { rc(arg)|37,           "r37" },
 101     { rc(arg)|38,        "r38" },       { rc(arg)|39,           "r39" },
 102     /* JIT_R0-JIT_V3 */
 103     { rc(gpr)|rc(sav)|40, "r40" },      { rc(gpr)|rc(sav)|41,   "r41" },
 104     { rc(gpr)|rc(sav)|42, "r42" },      { rc(gpr)|rc(sav)|43,   "r43" },
 105     { rc(gpr)|rc(sav)|44, "r44" },      { rc(gpr)|rc(sav)|45,   "r45" },
 106     { rc(gpr)|rc(sav)|46, "r46" },      { rc(gpr)|rc(sav)|47,   "r47" },
 107     /* Temporaries/locals */
 108     { rc(gpr)|rc(sav)|48, "r48" },      { rc(gpr)|rc(sav)|49,   "r49" },
 109     { rc(gpr)|rc(sav)|50, "r50" },      { rc(gpr)|rc(sav)|51,   "r51" },
 110     { rc(gpr)|rc(sav)|52, "r52" },      { rc(gpr)|rc(sav)|53,   "r53" },
 111     { rc(gpr)|rc(sav)|54, "r54" },      { rc(gpr)|rc(sav)|55,   "r55" },
 112     { rc(gpr)|rc(sav)|56, "r56" },      { rc(gpr)|rc(sav)|57,   "r57" },
 113     { rc(gpr)|rc(sav)|58, "r58" },      { rc(gpr)|rc(sav)|59,   "r59" },
 114     { rc(gpr)|rc(sav)|60, "r60" },      { rc(gpr)|rc(sav)|61,   "r61" },
 115     { rc(gpr)|rc(sav)|62, "r62" },      { rc(gpr)|rc(sav)|63,   "r63" },
 116     { rc(gpr)|rc(sav)|64, "r64" },      { rc(gpr)|rc(sav)|65,   "r65" },
 117     { rc(gpr)|rc(sav)|66, "r66" },      { rc(gpr)|rc(sav)|67,   "r67" },
 118     { rc(gpr)|rc(sav)|68, "r68" },      { rc(gpr)|rc(sav)|69,   "r69" },
 119     { rc(gpr)|rc(sav)|70, "r70" },      { rc(gpr)|rc(sav)|71,   "r71" },
 120     { rc(gpr)|rc(sav)|72, "r72" },      { rc(gpr)|rc(sav)|73,   "r73" },
 121     { rc(gpr)|rc(sav)|74, "r74" },      { rc(gpr)|rc(sav)|75,   "r75" },
 122     { rc(gpr)|rc(sav)|76, "r76" },      { rc(gpr)|rc(sav)|77,   "r77" },
 123     { rc(gpr)|rc(sav)|78, "r78" },      { rc(gpr)|rc(sav)|79,   "r79" },
 124     { rc(gpr)|rc(sav)|80, "r80" },      { rc(gpr)|rc(sav)|81,   "r81" },
 125     { rc(gpr)|rc(sav)|82, "r82" },      { rc(gpr)|rc(sav)|83,   "r83" },
 126     { rc(gpr)|rc(sav)|84, "r84" },      { rc(gpr)|rc(sav)|85,   "r85" },
 127     { rc(gpr)|rc(sav)|86, "r86" },      { rc(gpr)|rc(sav)|87,   "r87" },
 128     { rc(gpr)|rc(sav)|88, "r88" },      { rc(gpr)|rc(sav)|89,   "r89" },
 129     { rc(gpr)|rc(sav)|90, "r90" },      { rc(gpr)|rc(sav)|91,   "r91" },
 130     { rc(gpr)|rc(sav)|92, "r92" },      { rc(gpr)|rc(sav)|93,   "r93" },
 131     { rc(gpr)|rc(sav)|94, "r94" },      { rc(gpr)|rc(sav)|95,   "r95" },
 132     { rc(gpr)|rc(sav)|96, "r96" },      { rc(gpr)|rc(sav)|97,   "r97" },
 133     { rc(gpr)|rc(sav)|98, "r98" },      { rc(gpr)|rc(sav)|99,   "r99" },
 134     { rc(gpr)|rc(sav)|100,"r100"},      { rc(gpr)|rc(sav)|101,  "r101"},
 135     { rc(gpr)|rc(sav)|102,"r102"},      { rc(gpr)|rc(sav)|103,  "r103"},
 136     { rc(gpr)|rc(sav)|104,"r104"},      { rc(gpr)|rc(sav)|105,  "r105"},
 137     { rc(gpr)|rc(sav)|106,"r106"},      { rc(gpr)|rc(sav)|107,  "r107"},
 138     { rc(gpr)|rc(sav)|108,"r108"},      { rc(gpr)|rc(sav)|109,  "r109"},
 139     { rc(gpr)|rc(sav)|110,"r110"},      { rc(gpr)|rc(sav)|111,  "r111"},
 140     { rc(gpr)|rc(sav)|112,"r112"},      { rc(gpr)|rc(sav)|113,  "r113"},
 141     { rc(gpr)|rc(sav)|114,"r114"},
 142     /* Do not enable these because no matter what, want 13 free registers,
 143      * 5 for prolog and epilog and 8 for outgoing arguments */
 144     { 115,               "r115"},
 145     { 116,               "r116"},       { 117,                  "r117"},
 146     { 118,               "r118"},       { 119,                  "r119"},
 147     { 120,               "r120"},       { 121,                  "r121"},
 148     { 122,               "r122"},       { 123,                  "r123"},
 149     { 124,               "r124"},       { 125,                  "r125"},
 150     { 126,               "r126"},       { 127,                  "r127"},
 151     /* Always 0.0 */
 152     { 0,                 "f0"  },
 153     /* Always 1.0 */
 154     { 1,                 "f1"  },
 155     /* Do not touch callee save registers not automatically spill/reloaded */
 156     { rc(sav)|2,         "f2"  },       { rc(sav)|3,            "f3"  },
 157     { rc(sav)|4,         "f4"  },       { rc(sav)|5,            "f5"  },
 158     /* Scratch */
 159     { rc(fpr)|6,         "f6"  },       { rc(fpr)|7,            "f7"  },
 160     /* Do not allocate for the sake of simplification */
 161     { rc(arg)|8,         "f8"  },
 162     /* Scratch - Argument/return registers */
 163     { rc(arg)|9,         "f9"  },
 164     { rc(arg)|10,        "f10" },       { rc(arg)|11,           "f11" },
 165     { rc(arg)|12,        "f12" },       { rc(arg)|13,           "f13" },
 166     { rc(arg)|14,        "f14" },       { rc(arg)|15,           "f15" },
 167     /* Do not touch callee save registers not automatically spill/reloaded */
 168     { rc(sav)|16,        "f16" },       { rc(sav)|17,           "f17" },
 169     { rc(sav)|18,        "f18" },       { rc(sav)|19,           "f19" },
 170     { rc(sav)|20,        "f20" },       { rc(sav)|21,           "f21" },
 171     { rc(sav)|22,        "f22" },       { rc(sav)|23,           "f23" },
 172     { rc(sav)|24,        "f24" },       { rc(sav)|25,           "f25" },
 173     { rc(sav)|26,        "f26" },       { rc(sav)|27,           "f27" },
 174     { rc(sav)|28,        "f28" },       { rc(sav)|29,           "f29" },
 175     { rc(sav)|30,        "f30" },       { rc(sav)|31,           "f31" },
 176     /* Scratch */
 177     { rc(fpr)|32,        "f32" },       { rc(fpr)|33,           "f33" },
 178     { rc(fpr)|34,        "f34" },       { rc(fpr)|35,           "f35" },
 179     { rc(fpr)|36,        "f36" },       { rc(fpr)|37,           "f37" },
 180     { rc(fpr)|38,        "f38" },       { rc(fpr)|39,           "f39" },
 181     { rc(fpr)|40,        "f40" },       { rc(fpr)|41,           "f41" },
 182     { rc(fpr)|42,        "f42" },       { rc(fpr)|43,           "f43" },
 183     { rc(fpr)|44,        "f44" },       { rc(fpr)|45,           "f45" },
 184     { rc(fpr)|46,        "f46" },       { rc(fpr)|47,           "f47" },
 185     { rc(fpr)|48,        "f48" },       { rc(fpr)|49,           "f49" },
 186     { rc(fpr)|50,        "f50" },       { rc(fpr)|51,           "f51" },
 187     { rc(fpr)|52,        "f52" },       { rc(fpr)|53,           "f53" },
 188     { rc(fpr)|54,        "f54" },       { rc(fpr)|55,           "f55" },
 189     { rc(fpr)|56,        "f56" },       { rc(fpr)|57,           "f57" },
 190     { rc(fpr)|58,        "f58" },       { rc(fpr)|59,           "f59" },
 191     { rc(fpr)|60,        "f60" },       { rc(fpr)|61,           "f61" },
 192     { rc(fpr)|62,        "f62" },       { rc(fpr)|63,           "f63" },
 193     { rc(fpr)|64,        "f64" },       { rc(fpr)|65,           "f65" },
 194     { rc(fpr)|66,        "f66" },       { rc(fpr)|67,           "f67" },
 195     { rc(fpr)|68,        "f68" },       { rc(fpr)|69,           "f69" },
 196     { rc(fpr)|70,        "f70" },       { rc(fpr)|71,           "f71" },
 197     { rc(fpr)|72,        "f72" },       { rc(fpr)|73,           "f73" },
 198     { rc(fpr)|74,        "f74" },       { rc(fpr)|75,           "f75" },
 199     { rc(fpr)|76,        "f76" },       { rc(fpr)|77,           "f77" },
 200     { rc(fpr)|78,        "f78" },       { rc(fpr)|79,           "f79" },
 201     { rc(fpr)|80,        "f80" },       { rc(fpr)|81,           "f81" },
 202     { rc(fpr)|82,        "f82" },       { rc(fpr)|83,           "f83" },
 203     { rc(fpr)|84,        "f84" },       { rc(fpr)|85,           "f85" },
 204     { rc(fpr)|86,        "f86" },       { rc(fpr)|87,           "f87" },
 205     { rc(fpr)|88,        "f88" },       { rc(fpr)|89,           "f89" },
 206     { rc(fpr)|90,        "f90" },       { rc(fpr)|91,           "f91" },
 207     { rc(fpr)|92,        "f92" },       { rc(fpr)|93,           "f93" },
 208     { rc(fpr)|94,        "f94" },       { rc(fpr)|95,           "f95" },
 209     { rc(fpr)|96,        "f96" },       { rc(fpr)|97,           "f97" },
 210     { rc(fpr)|98,        "f98" },       { rc(fpr)|99,           "f99" },
 211     { rc(fpr)|100,       "f100"},       { rc(fpr)|101,          "f101"},
 212     { rc(fpr)|102,       "f102"},       { rc(fpr)|103,          "f103"},
 213     { rc(fpr)|104,       "f104"},       { rc(fpr)|105,          "f105"},
 214     { rc(fpr)|106,       "f106"},       { rc(fpr)|107,          "f107"},
 215     { rc(fpr)|108,       "f108"},       { rc(fpr)|109,          "f109"},
 216     { rc(fpr)|110,       "f110"},       { rc(fpr)|111,          "f111"},
 217     { rc(fpr)|112,       "f112"},       { rc(fpr)|113,          "f113"},
 218     { rc(fpr)|114,       "f114"},       { rc(fpr)|115,          "f115"},
 219     { rc(fpr)|116,       "f116"},       { rc(fpr)|117,          "f117"},
 220     { rc(fpr)|118,       "f118"},       { rc(fpr)|119,          "f119"},
 221 #if 0
 222     /* commented to fit a jit_regset_t in 256 bits, so that the fake
 223      * O0-O7 registers are easily patched when an argument is pushed */
 224     { rc(fpr)|120,       "f120"},       { rc(fpr)|121,          "f121"},
 225     { rc(fpr)|122,       "f122"},       { rc(fpr)|123,          "f123"},
 226     { rc(fpr)|124,       "f124"},       { rc(fpr)|125,          "f125"},
 227     { rc(fpr)|126,       "f126"},       { rc(fpr)|127,          "f127"},
 228 #endif
 229     /* Fake registers to patch in movr and movi arguments */
 230     { rc(arg)|120,       "o0"  },       { rc(arg)|121,          "o1"  },
 231     { rc(arg)|122,       "o2"  },       { rc(arg)|123,          "o3"  },
 232     { rc(arg)|124,       "o4"  },       { rc(arg)|125,          "o5"  },
 233     { rc(arg)|126,       "o6"  },       { rc(arg)|127,          "o7"  },
 234     { _NOREG,            "<none>" },
 235 };
 236
 237 /*
 238  * Implementation
 239  */
 240 void
 241 jit_get_cpu(void)
 242 {
 243     jit_word_t          clz = -1;
 244     __asm__ volatile("tf.nz.unc p6,p7=32;(p6)mov %0=1;(p7)mov %0=0"
 245                      : "=r" (clz));
 246     assert(clz == 0 || clz == 1);
 247     jit_cpu.clz = clz;
 248 }
 249
 250 void
 251 _jit_init(jit_state_t *_jit)
 252 {
 253     _jitc->reglen = jit_size(_rvs) - 1;
 254     jit_regset_new(&_jitc->regs);
 255     jit_carry = _NOREG;
 256 }
 257
 258 void
 259 _jit_prolog(jit_state_t *_jit)
 260 {
 261     jit_int32_t         offset;
 262
 263     if (_jitc->function)
 264         jit_epilog();
 265     assert(jit_regset_cmp_ui(&_jitc->regarg, 0) == 0);
 266     jit_regset_set_ui(&_jitc->regsav, 0);
 267     offset = _jitc->functions.offset;
 268     if (offset >= _jitc->functions.length) {
 269         jit_realloc((jit_pointer_t *)&_jitc->functions.ptr,
 270                     _jitc->functions.length * sizeof(jit_function_t),
 271                     (_jitc->functions.length + 16) * sizeof(jit_function_t));
 272         _jitc->functions.length += 16;
 273     }
 274     _jitc->function = _jitc->functions.ptr + _jitc->functions.offset++;
 275     /* params_offset << 1, once for ours arguments, once for arguments
 276      * to any called function; required because offsets are computed
 277      * as JIT_FP displacement */
 278     _jitc->function->self.size = stack_framesize + (params_offset << 1);
 279     _jitc->function->self.argi = _jitc->function->self.argf =
 280         _jitc->function->self.aoff = _jitc->function->self.alen = 0;
 281     _jitc->function->self.call = jit_call_default;
 282     jit_alloc((jit_pointer_t *)&_jitc->function->regoff,
 283               _jitc->reglen * sizeof(jit_int32_t));
 284
 285     /* _no_link here does not mean the jit_link() call can be removed
 286      * by rewriting as:
 287      * _jitc->function->prolog = jit_new_node(jit_code_prolog);
 288      */
 289     _jitc->function->prolog = jit_new_node_no_link(jit_code_prolog);
 290     jit_link(_jitc->function->prolog);
 291     _jitc->function->prolog->w.w = offset;
 292     _jitc->function->epilog = jit_new_node_no_link(jit_code_epilog);
 293     /*  u:      label value
 294      *  v:      offset in blocks vector
 295      *  w:      offset in functions vector
 296      */
 297     _jitc->function->epilog->w.w = offset;
 298
 299     jit_regset_new(&_jitc->function->regset);
 300 }
 301
 302 jit_int32_t
 303 _jit_allocai(jit_state_t *_jit, jit_int32_t length)
 304 {
 305     assert(_jitc->function);
 306     switch (length) {
 307         case 0: case 1:                                         break;
 308         case 2:         _jitc->function->self.aoff &= -2;       break;
 309         case 3: case 4: _jitc->function->self.aoff &= -4;       break;
 310         default:        _jitc->function->self.aoff &= -8;       break;
 311     }
 312     _jitc->function->self.aoff -= length;
 313     if (!_jitc->realize) {
 314         jit_inc_synth_ww(allocai, _jitc->function->self.aoff, length);
 315         jit_dec_synth();
 316     }
 317     return (_jitc->function->self.aoff);
 318 }
 319
 320 void
 321 _jit_allocar(jit_state_t *_jit, jit_int32_t u, jit_int32_t v)
 322 {
 323     jit_int32_t          reg;
 324     assert(_jitc->function);
 325     jit_inc_synth_ww(allocar, u, v);
 326     if (!_jitc->function->allocar) {
 327         _jitc->function->aoffoff = jit_allocai(sizeof(jit_int32_t));
 328         _jitc->function->allocar = 1;
 329     }
 330     reg = jit_get_reg(jit_class_gpr);
 331     jit_negr(reg, v);
 332     jit_andi(reg, reg, -16);
 333     jit_ldxi_i(u, JIT_FP, _jitc->function->aoffoff);
 334     jit_addr(u, u, reg);
 335     jit_addr(JIT_SP, JIT_SP, reg);
 336     jit_stxi_i(_jitc->function->aoffoff, JIT_FP, u);
 337     jit_unget_reg(reg);
 338     jit_dec_synth();
 339 }
 340
 341 void
 342 _jit_ret(jit_state_t *_jit)
 343 {
 344     jit_node_t          *instr;
 345     assert(_jitc->function);
 346     jit_inc_synth(ret);
 347     /* jump to epilog */
 348     instr = jit_jmpi();
 349     jit_patch_at(instr, _jitc->function->epilog);
 350     jit_dec_synth();
 351 }
 352
 353 void
 354 _jit_retr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
 355 {
 356     jit_code_inc_synth_w(code, u);
 357     jit_movr(JIT_RET, u);
 358     jit_ret();
 359     jit_dec_synth();
 360 }
 361
 362 void
 363 _jit_reti(jit_state_t *_jit, jit_word_t u, jit_code_t code)
 364 {
 365     jit_code_inc_synth_w(code, u);
 366     jit_movi(JIT_RET, u);
 367     jit_ret();
 368     jit_dec_synth();
 369 }
 370
 371 void
 372 _jit_retr_f(jit_state_t *_jit, jit_int32_t u)
 373 {
 374     jit_inc_synth_w(retr_f, u);
 375     jit_movr_f(JIT_FRET, u);
 376     jit_ret();
 377     jit_dec_synth();
 378 }
 379
 380 void
 381 _jit_reti_f(jit_state_t *_jit, jit_float32_t u)
 382 {
 383     jit_inc_synth_f(reti_f, u);
 384     jit_movi_f(JIT_FRET, u);
 385     jit_ret();
 386     jit_dec_synth();
 387 }
 388
 389 void
 390 _jit_retr_d(jit_state_t *_jit, jit_int32_t u)
 391 {
 392     jit_inc_synth_w(retr_d, u);
 393     jit_movr_d(JIT_FRET, u);
 394     jit_ret();
 395     jit_dec_synth();
 396 }
 397
 398 void
 399 _jit_reti_d(jit_state_t *_jit, jit_float64_t u)
 400 {
 401     jit_inc_synth_d(reti_d, u);
 402     jit_movi_d(JIT_FRET, u);
 403     jit_ret();
 404     jit_dec_synth();
 405 }
 406
 407 void
 408 _jit_epilog(jit_state_t *_jit)
 409 {
 410     assert(_jitc->function);
 411     assert(_jitc->function->epilog->next == NULL);
 412     jit_link(_jitc->function->epilog);
 413     _jitc->function = NULL;
 414 }
 415
 416 jit_bool_t
 417 _jit_arg_register_p(jit_state_t *_jit, jit_node_t *u)
 418 {
 419     if (u->code >= jit_code_arg_c && u->code <= jit_code_arg)
 420         return (jit_arg_reg_p(u->u.w));
 421     assert(u->code == jit_code_arg_f || u->code == jit_code_arg_d);
 422     return (jit_arg_reg_p(u->u.w) || jit_arg_reg_p(u->u.w - 8));
 423 }
 424
 425 void
 426 _jit_ellipsis(jit_state_t *_jit)
 427 {
 428     jit_inc_synth(ellipsis);
 429     if (_jitc->prepare) {
 430         assert(!(_jitc->function->call.call & jit_call_varargs));
 431         _jitc->function->call.call |= jit_call_varargs;
 432         jit_link_prepare();
 433     }
 434     else {
 435         assert(!(_jitc->function->self.call & jit_call_varargs));
 436         _jitc->function->self.call |= jit_call_varargs;
 437         _jitc->function->vagp = _jitc->function->self.argi;
 438         jit_link_prolog();
 439     }
 440     jit_dec_synth();
 441 }
 442
 443 void
 444 _jit_va_push(jit_state_t *_jit, jit_int32_t u)
 445 {
 446     jit_inc_synth_w(va_push, u);
 447     jit_pushargr(u);
 448     jit_dec_synth();
 449 }
 450
 451 jit_node_t *
 452 _jit_arg(jit_state_t *_jit, jit_code_t code)
 453 {
 454     jit_node_t          *node;
 455     jit_int32_t          offset;
 456     assert(_jitc->function);
 457     assert(!(_jitc->function->self.call & jit_call_varargs));
 458 #if STRONG_TYPE_CHECKING
 459     assert(code >= jit_code_arg_c && code <= jit_code_arg);
 460 #endif
 461     if (jit_arg_reg_p(_jitc->function->self.argi))
 462         offset = _jitc->function->self.argi++;
 463     else {
 464         offset = _jitc->function->self.size;
 465         _jitc->function->self.size += sizeof(jit_word_t);
 466     }
 467     node = jit_new_node_ww(code, offset,
 468                            ++_jitc->function->self.argn);
 469     jit_link_prolog();
 470     return (node);
 471 }
 472
 473 jit_node_t *
 474 _jit_arg_f(jit_state_t *_jit)
 475 {
 476     jit_node_t          *node;
 477     jit_int32_t          offset;
 478     assert(_jitc->function);
 479     if (jit_arg_reg_p(_jitc->function->self.argi)) {
 480         if (!(_jitc->function->self.call & jit_call_varargs))
 481             offset = 8 + _jitc->function->self.argf++;
 482         else
 483             offset = _jitc->function->self.argi;
 484         ++_jitc->function->self.argi;
 485     }
 486    else {
 487         offset = _jitc->function->self.size;
 488         _jitc->function->self.size += sizeof(jit_word_t);
 489     }
 490     node = jit_new_node_ww(jit_code_arg_f, offset,
 491                            ++_jitc->function->self.argn);
 492     jit_link_prolog();
 493     return (node);
 494 }
 495
 496 jit_node_t *
 497 _jit_arg_d(jit_state_t *_jit)
 498 {
 499     jit_node_t          *node;
 500     jit_int32_t          offset;
 501     assert(_jitc->function);
 502     if (jit_arg_reg_p(_jitc->function->self.argi)) {
 503         if (!(_jitc->function->self.call & jit_call_varargs))
 504             offset = 8 + _jitc->function->self.argf++;
 505         else
 506             offset = _jitc->function->self.argi;
 507         ++_jitc->function->self.argi;
 508     }
 509    else {
 510         offset = _jitc->function->self.size;
 511         _jitc->function->self.size += sizeof(jit_float64_t);
 512     }
 513     node = jit_new_node_ww(jit_code_arg_d, offset,
 514                            ++_jitc->function->self.argn);
 515     jit_link_prolog();
 516     return (node);
 517 }
 518
 519 void
 520 _jit_getarg_c(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 521 {
 522     assert_arg_type(v->code, jit_code_arg_c);
 523     jit_inc_synth_wp(getarg_c, u, v);
 524     if (jit_arg_reg_p(v->u.w))
 525         jit_extr_c(u, _R32 + v->u.w);
 526     else
 527         jit_ldxi_c(u, JIT_FP, v->u.w + C_DISP);
 528     jit_dec_synth();
 529 }
 530
 531 void
 532 _jit_getarg_uc(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 533 {
 534     assert_arg_type(v->code, jit_code_arg_c);
 535     jit_inc_synth_wp(getarg_uc, u, v);
 536     if (jit_arg_reg_p(v->u.w))
 537         jit_extr_uc(u, _R32 + v->u.w);
 538     else
 539         jit_ldxi_uc(u, JIT_FP, v->u.w + C_DISP);
 540     jit_dec_synth();
 541 }
 542
 543 void
 544 _jit_getarg_s(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 545 {
 546     assert_arg_type(v->code, jit_code_arg_s);
 547     jit_inc_synth_wp(getarg_s, u, v);
 548     if (jit_arg_reg_p(v->u.w))
 549         jit_extr_s(u, _R32 + v->u.w);
 550     else
 551         jit_ldxi_s(u, JIT_FP, v->u.w + S_DISP);
 552     jit_dec_synth();
 553 }
 554
 555 void
 556 _jit_getarg_us(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 557 {
 558     assert_arg_type(v->code, jit_code_arg_s);
 559     jit_inc_synth_wp(getarg_us, u, v);
 560     if (jit_arg_reg_p(v->u.w))
 561         jit_extr_us(u, _R32 + v->u.w);
 562     else
 563         jit_ldxi_us(u, JIT_FP, v->u.w + S_DISP);
 564     jit_dec_synth();
 565 }
 566
 567 void
 568 _jit_getarg_i(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 569 {
 570     assert_arg_type(v->code, jit_code_arg_i);
 571     jit_inc_synth_wp(getarg_i, u, v);
 572     if (jit_arg_reg_p(v->u.w))
 573         jit_extr_i(u, _R32 + v->u.w);
 574     else
 575         jit_ldxi_i(u, JIT_FP, v->u.w + I_DISP);
 576     jit_dec_synth();
 577 }
 578
 579 void
 580 _jit_getarg_ui(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 581 {
 582     assert_arg_type(v->code, jit_code_arg_i);
 583     jit_inc_synth_wp(getarg_ui, u, v);
 584     if (jit_arg_reg_p(v->u.w))
 585         jit_extr_ui(u, _R32 + v->u.w);
 586     else
 587         jit_ldxi_ui(u, JIT_FP, v->u.w + I_DISP);
 588     jit_dec_synth();
 589 }
 590
 591 void
 592 _jit_getarg_l(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 593 {
 594     assert_arg_type(v->code, jit_code_arg_l);
 595     jit_inc_synth_wp(getarg_l, u, v);
 596     if (jit_arg_reg_p(v->u.w))
 597         jit_movr(u, _R32 + v->u.w);
 598     else
 599         jit_ldxi(u, JIT_FP, v->u.w);
 600     jit_dec_synth();
 601 }
 602
 603 void
 604 _jit_putargr(jit_state_t *_jit, jit_int32_t u, jit_node_t *v, jit_code_t code)
 605 {
 606     assert_putarg_type(code, v->code);
 607     jit_code_inc_synth_wp(code, u, v);
 608     if (jit_arg_reg_p(v->u.w))
 609         jit_movr(_R32 + v->u.w, u);
 610     else
 611         jit_stxi(v->u.w, JIT_FP, u);
 612     jit_dec_synth();
 613 }
 614
 615 void
 616 _jit_putargi(jit_state_t *_jit, jit_word_t u, jit_node_t *v, jit_code_t code)
 617 {
 618     jit_int32_t         regno;
 619     assert_putarg_type(code, v->code);
 620     jit_code_inc_synth_wp(code, u, v);
 621     if (jit_arg_reg_p(v->u.w))
 622         jit_movi(_R32 + v->u.w, u);
 623     else {
 624         regno = jit_get_reg(jit_class_gpr);
 625         jit_movi(regno, u);
 626         jit_stxi(v->u.w, JIT_FP, regno);
 627         jit_unget_reg(regno);
 628     }
 629     jit_dec_synth();
 630 }
 631
 632 void
 633 _jit_getarg_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 634 {
 635     assert(v->code == jit_code_arg_f);
 636     jit_inc_synth_wp(getarg_f, u, v);
 637     if (jit_arg_reg_p(v->u.w))
 638         jit_movr_w_f(u, _OUT0 + v->u.w);
 639     else if (jit_arg_reg_p(v->u.w - 8))
 640         jit_movr_f(u, _F8 + (v->u.w - 8));
 641     else
 642         jit_ldxi_f(u, JIT_FP, v->u.w + F_DISP);
 643     jit_dec_synth();
 644 }
 645
 646 void
 647 _jit_putargr_f(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 648 {
 649     assert(v->code == jit_code_arg_f);
 650     jit_inc_synth_wp(putargr_f, u, v);
 651     if (jit_arg_reg_p(v->u.w))
 652         jit_movr_f_w(_OUT0 + v->u.w, u);
 653     else if (jit_arg_reg_p(v->u.w - 8))
 654         jit_movr_f(_F8 + (v->u.w - 8), u);
 655     else
 656         jit_stxi_f(v->u.w, JIT_FP, u + F_DISP);
 657     jit_dec_synth();
 658 }
 659
 660 void
 661 _jit_putargi_f(jit_state_t *_jit, jit_float32_t u, jit_node_t *v)
 662 {
 663     jit_int32_t         regno;
 664     assert(v->code == jit_code_arg_f);
 665     jit_inc_synth_fp(putargi_f, u, v);
 666     if (jit_arg_reg_p(v->u.w))
 667         jit_movi_f_w(_OUT0 + v->u.w, u);
 668     else if (jit_arg_reg_p(v->u.w - 8))
 669         jit_movi_f(_F8 + (v->u.w - 8), u);
 670     else {
 671         regno = jit_get_reg(jit_class_fpr);
 672         jit_movi_f(regno, u);
 673         jit_stxi_f(v->u.w, JIT_FP, regno + F_DISP);
 674         jit_unget_reg(regno);
 675     }
 676     jit_dec_synth();
 677 }
 678
 679 void
 680 _jit_getarg_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 681 {
 682     assert(v->code == jit_code_arg_d);
 683     jit_inc_synth_wp(getarg_d, u, v);
 684     if (jit_arg_reg_p(v->u.w))
 685         jit_movr_w_d(u, _OUT0 + v->u.w);
 686     else if (jit_arg_reg_p(v->u.w - 8))
 687         jit_movr_d(u, _F8 + (v->u.w - 8));
 688     else
 689         jit_ldxi_d(u, JIT_FP, v->u.w);
 690     jit_dec_synth();
 691 }
 692
 693 void
 694 _jit_putargr_d(jit_state_t *_jit, jit_int32_t u, jit_node_t *v)
 695 {
 696     assert(v->code == jit_code_arg_d);
 697     jit_inc_synth_wp(putargr_d, u, v);
 698     if (jit_arg_reg_p(v->u.w))
 699         jit_movr_d_w(_OUT0 + v->u.w, u);
 700     else if (jit_arg_reg_p(v->u.w - 8))
 701         jit_movr_d(_F8 + (v->u.w - 8), u);
 702     else
 703         jit_stxi_d(v->u.w, JIT_FP, u);
 704     jit_dec_synth();
 705 }
 706
 707 void
 708 _jit_putargi_d(jit_state_t *_jit, jit_float64_t u, jit_node_t *v)
 709 {
 710     jit_int32_t         regno;
 711     assert(v->code == jit_code_arg_d);
 712     jit_inc_synth_dp(putargi_d, u, v);
 713     if (jit_arg_reg_p(v->u.w))
 714         jit_movi_d_w(_OUT0 + v->u.w, u);
 715     else if (jit_arg_reg_p(v->u.w - 8))
 716         jit_movi_d(_F8 + (v->u.w - 8), u);
 717     else {
 718         regno = jit_get_reg(jit_class_fpr);
 719         jit_movi_d(regno, u);
 720         jit_stxi_d(v->u.w, JIT_FP, regno);
 721         jit_unget_reg(regno);
 722     }
 723     jit_dec_synth();
 724 }
 725
 726 void
 727 _jit_pushargr(jit_state_t *_jit, jit_int32_t u, jit_code_t code)
 728 {
 729     assert(_jitc->function);
 730     jit_code_inc_synth_w(code, u);
 731     jit_link_prepare();
 732     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 733         jit_movr(_OUT0 + _jitc->function->call.argi, u);
 734         ++_jitc->function->call.argi;
 735     }
 736     else {
 737         jit_stxi(_jitc->function->call.size + params_offset, JIT_SP, u);
 738         _jitc->function->call.size += sizeof(jit_word_t);
 739     }
 740     jit_dec_synth();
 741 }
 742
 743 void
 744 _jit_pushargi(jit_state_t *_jit, jit_word_t u, jit_code_t code)
 745 {
 746     jit_int32_t          regno;
 747     assert(_jitc->function);
 748     jit_code_inc_synth_w(code, u);
 749     jit_link_prepare();
 750     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 751         jit_movi(_OUT0 + _jitc->function->call.argi, u);
 752         ++_jitc->function->call.argi;
 753     }
 754     else {
 755         regno = jit_get_reg(jit_class_gpr);
 756         jit_movi(regno, u);
 757         jit_stxi(_jitc->function->call.size + params_offset, JIT_SP, regno);
 758         _jitc->function->call.size += sizeof(jit_word_t);
 759         jit_unget_reg(regno);
 760     }
 761     jit_dec_synth();
 762 }
 763
 764 void
 765 _jit_pushargr_f(jit_state_t *_jit, jit_int32_t u)
 766 {
 767     assert(_jitc->function);
 768     jit_inc_synth_w(pushargr_f, u);
 769     jit_link_prepare();
 770     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 771         if (!(_jitc->function->call.call & jit_call_varargs)) {
 772             jit_movr_f(_F8 + _jitc->function->call.argf, u);
 773             ++_jitc->function->call.argf;
 774         }
 775         else
 776             jit_movr_f_w(_OUT0 + _jitc->function->call.argi, u);
 777         ++_jitc->function->call.argi;
 778     }
 779     else {
 780         jit_stxi_f(_jitc->function->call.size + params_offset + F_DISP,
 781                    JIT_SP, u);
 782         _jitc->function->call.size += sizeof(jit_word_t);
 783     }
 784     jit_dec_synth();
 785 }
 786
 787 void
 788 _jit_pushargi_f(jit_state_t *_jit, jit_float32_t u)
 789 {
 790     jit_int32_t          regno;
 791     assert(_jitc->function);
 792     jit_inc_synth_f(pushargi_f, u);
 793     jit_link_prepare();
 794     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 795         if (!(_jitc->function->call.call & jit_call_varargs)) {
 796             jit_movi_f(_F8 + _jitc->function->call.argf, u);
 797             ++_jitc->function->call.argf;
 798         }
 799         else
 800             jit_movi_f_w(_OUT0 + _jitc->function->call.argi, u);
 801         ++_jitc->function->call.argi;
 802     }
 803     else {
 804         regno = jit_get_reg(jit_class_fpr);
 805         jit_movi_f(regno, u);
 806         jit_stxi_f(_jitc->function->call.size + params_offset + F_DISP,
 807                    JIT_SP, regno);
 808         _jitc->function->call.size += sizeof(jit_word_t);
 809         jit_unget_reg(regno);
 810     }
 811     jit_dec_synth();
 812 }
 813
 814 void
 815 _jit_pushargr_d(jit_state_t *_jit, jit_int32_t u)
 816 {
 817     assert(_jitc->function);
 818     jit_inc_synth_w(pushargr_d, u);
 819     jit_link_prepare();
 820     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 821         if (!(_jitc->function->call.call & jit_call_varargs)) {
 822             jit_movr_d(_F8 + _jitc->function->call.argf, u);
 823             ++_jitc->function->call.argf;
 824         }
 825         else
 826             jit_movr_d_w(_OUT0 + _jitc->function->call.argi, u);
 827         ++_jitc->function->call.argi;
 828     }
 829     else {
 830         jit_stxi_d(_jitc->function->call.size + params_offset, JIT_SP, u);
 831         _jitc->function->call.size += sizeof(jit_float64_t);
 832     }
 833     jit_dec_synth();
 834 }
 835
 836 void
 837 _jit_pushargi_d(jit_state_t *_jit, jit_float64_t u)
 838 {
 839     jit_int32_t          regno;
 840     assert(_jitc->function);
 841     jit_inc_synth_d(pushargi_d, u);
 842     jit_link_prepare();
 843     if (jit_arg_reg_p(_jitc->function->call.argi)) {
 844         if (!(_jitc->function->call.call & jit_call_varargs)) {
 845             jit_movi_d(_F8 + _jitc->function->call.argf, u);
 846             ++_jitc->function->call.argf;
 847         }
 848         else
 849             jit_movi_d_w(_OUT0 + _jitc->function->call.argi, u);
 850         ++_jitc->function->call.argi;
 851     }
 852     else {
 853         regno = jit_get_reg(jit_class_fpr);
 854         jit_movi_d(regno, u);
 855         jit_stxi_d(_jitc->function->call.size + params_offset, JIT_SP, regno);
 856         _jitc->function->call.size += sizeof(jit_float64_t);
 857         jit_unget_reg(regno);
 858     }
 859     jit_dec_synth();
 860 }
 861
 862 jit_bool_t
 863 _jit_regarg_p(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno)
 864 {
 865     /* Argument registers are allocated from the pool of unused registers */
 866     return (0);
 867 }
 868
 869 void
 870 _jit_finishr(jit_state_t *_jit, jit_int32_t r0)
 871 {
 872     jit_node_t          *call;
 873     assert(_jitc->function);
 874     jit_inc_synth_w(finishr, r0);
 875     if (_jitc->function->self.alen < _jitc->function->call.size)
 876         _jitc->function->self.alen = _jitc->function->call.size;
 877     call = jit_callr(r0);
 878     call->v.w = _jitc->function->call.argi;
 879     call->w.w = _jitc->function->call.argf;
 880     _jitc->function->call.argi = _jitc->function->call.argf =
 881         _jitc->function->call.size = 0;
 882     _jitc->prepare = 0;
 883     jit_dec_synth();
 884 }
 885
 886 jit_node_t *
 887 _jit_finishi(jit_state_t *_jit, jit_pointer_t i0)
 888 {
 889     jit_node_t          *node;
 890     assert(_jitc->function);
 891     jit_inc_synth_w(finishi, (jit_word_t)i0);
 892     if (_jitc->function->self.alen < _jitc->function->call.size)
 893         _jitc->function->self.alen = _jitc->function->call.size;
 894     node = jit_calli(i0);
 895     node->v.w = _jitc->function->call.argi;
 896     node->w.w = _jitc->function->call.argf;
 897     _jitc->function->call.argi = _jitc->function->call.argf =
 898         _jitc->function->call.size = 0;
 899     _jitc->prepare = 0;
 900     jit_dec_synth();
 901     return (node);
 902 }
 903
 904 void
 905 _jit_retval_c(jit_state_t *_jit, jit_int32_t r0)
 906 {
 907     jit_inc_synth_w(retval_c, r0);
 908     jit_extr_c(r0, JIT_RET);
 909     jit_dec_synth();
 910 }
 911
 912 void
 913 _jit_retval_uc(jit_state_t *_jit, jit_int32_t r0)
 914 {
 915     jit_inc_synth_w(retval_uc, r0);
 916     jit_extr_uc(r0, JIT_RET);
 917     jit_dec_synth();
 918 }
 919
 920 void
 921 _jit_retval_s(jit_state_t *_jit, jit_int32_t r0)
 922 {
 923     jit_inc_synth_w(retval_s, r0);
 924     jit_extr_s(r0, JIT_RET);
 925     jit_dec_synth();
 926 }
 927
 928 void
 929 _jit_retval_us(jit_state_t *_jit, jit_int32_t r0)
 930 {
 931     jit_inc_synth_w(retval_us, r0);
 932     jit_extr_us(r0, JIT_RET);
 933     jit_dec_synth();
 934 }
 935
 936 void
 937 _jit_retval_i(jit_state_t *_jit, jit_int32_t r0)
 938 {
 939     jit_inc_synth_w(retval_i, r0);
 940     jit_extr_i(r0, JIT_RET);
 941     jit_dec_synth();
 942 }
 943
 944 void
 945 _jit_retval_ui(jit_state_t *_jit, jit_int32_t r0)
 946 {
 947     jit_inc_synth_w(retval_ui, r0);
 948     jit_extr_ui(r0, JIT_RET);
 949     jit_dec_synth();
 950 }
 951
 952 void
 953 _jit_retval_l(jit_state_t *_jit, jit_int32_t r0)
 954 {
 955     jit_inc_synth_w(retval_l, r0);
 956     jit_movr(r0, JIT_RET);
 957     jit_dec_synth();
 958 }
 959
 960 void
 961 _jit_retval_f(jit_state_t *_jit, jit_int32_t r0)
 962 {
 963     jit_inc_synth_w(retval_l, r0);
 964     jit_movr_f(r0, JIT_FRET);
 965     jit_dec_synth();
 966 }
 967
 968 void
 969 _jit_retval_d(jit_state_t *_jit, jit_int32_t r0)
 970 {
 971     jit_inc_synth_w(retval_d, r0);
 972     jit_movr_d(r0, JIT_FRET);
 973     jit_dec_synth();
 974 }
 975
 976 jit_pointer_t
 977 _emit_code(jit_state_t *_jit)
 978 {
 979     jit_node_t          *node;
 980     jit_node_t          *temp;
 981     jit_word_t           word;
 982     jit_int32_t          value;
 983     jit_int32_t          offset;
 984     struct {
 985         jit_node_t      *node;
 986         jit_word_t       word;
 987         jit_function_t   func;
 988 #if DEVEL_DISASSEMBLER
 989         jit_word_t       prevw;
 990 #endif
 991         jit_int32_t      patch_offset;
 992         jit_word_t       prolog_offset;
 993     } undo;
 994 #if DEVEL_DISASSEMBLER
 995     jit_word_t           prevw;
 996 #endif
 997
 998     _jitc->function = NULL;
 999
1000     /* If did resize the code buffer, these were not reset */
1001     _jitc->ioff = 0;
1002     jit_regset_set_ui(&_jitc->regs, 0);
1003     _jitc->pred = 0;
1004
1005     jit_reglive_setup();
1006
1007     undo.word = 0;
1008     undo.node = NULL;
1009     undo.patch_offset = 0;
1010
1011 #if DEVEL_DISASSEMBLER
1012     prevw = _jit->pc.w;
1013 #endif
1014     undo.prolog_offset = 0;
1015     for (node = _jitc->head; node; node = node->next)
1016         if (node->code != jit_code_label &&
1017             node->code != jit_code_note &&
1018             node->code != jit_code_name)
1019             break;
1020     if (node && (node->code != jit_code_prolog ||
1021                  !(_jitc->functions.ptr + node->w.w)->assume_frame)) {
1022         /* code may start with a jump so add an initial function descriptor */
1023         word = _jit->pc.w + 16;
1024         il(word);               /* addr */
1025         il(0);                  /* gp */
1026     }
1027 #define case_rr(name, type)                                             \
1028             case jit_code_##name##r##type:                              \
1029                 name##r##type(rn(node->u.w), rn(node->v.w));            \
1030                 break
1031 #define case_rw(name, type)                                             \
1032             case jit_code_##name##i##type:                              \
1033                 name##i##type(rn(node->u.w), node->v.w);                \
1034                 break
1035 #define case_wr(name, type)                                             \
1036             case jit_code_##name##i##type:                              \
1037                 name##i##type(node->u.w, rn(node->v.w));                \
1038                 break
1039 #define case_rrr(name, type)                                            \
1040             case jit_code_##name##r##type:                              \
1041                 name##r##type(rn(node->u.w),                            \
1042                               rn(node->v.w), rn(node->w.w));            \
1043                 break
1044 #define case_rrrr(name, type)                                           \
1045             case jit_code_##name##r##type:                              \
1046                 name##r##type(rn(node->u.q.l), rn(node->u.q.h),         \
1047                               rn(node->v.w), rn(node->w.w));            \
1048                 break
1049 #define case_rrw(name, type)                                            \
1050             case jit_code_##name##i##type:                              \
1051                 name##i##type(rn(node->u.w), rn(node->v.w), node->w.w); \
1052                 break
1053 #define case_rrrw(name, type)                                           \
1054             case jit_code_##name##i##type:                              \
1055                 name##i##type(rn(node->u.q.l), rn(node->u.q.h),         \
1056                               rn(node->v.w), node->w.w);                \
1057                 break
1058 #define case_rrf(name, type, size)                                      \
1059             case jit_code_##name##i##type:                              \
1060                 assert(node->flag & jit_flag_data);                     \
1061                 name##i##type(rn(node->u.w), rn(node->v.w),             \
1062                               (jit_float##size##_t *)node->w.n->u.w);   \
1063                 break
1064 #define case_wrr(name, type)                                            \
1065             case jit_code_##name##i##type:                              \
1066                 name##i##type(node->u.w, rn(node->v.w), rn(node->w.w)); \
1067                 break
1068 #define case_brr(name, type)                                            \
1069             case jit_code_##name##r##type:                              \
1070                 temp = node->u.n;                                       \
1071                 assert(temp->code == jit_code_label ||                  \
1072                        temp->code == jit_code_epilog);                  \
1073                 if (temp->flag & jit_flag_patch)                        \
1074                     name##r##type(temp->u.w, rn(node->v.w),             \
1075                                   rn(node->w.w));                       \
1076                 else {                                                  \
1077                     word = name##r##type(_jit->pc.w,                    \
1078                                          rn(node->v.w), rn(node->w.w)); \
1079                     patch(word, node);                                  \
1080                 }                                                       \
1081                 break
1082 #define case_brw(name, type)                                            \
1083             case jit_code_##name##i##type:                              \
1084                 temp = node->u.n;                                       \
1085                 assert(temp->code == jit_code_label ||                  \
1086                        temp->code == jit_code_epilog);                  \
1087                 if (temp->flag & jit_flag_patch)                        \
1088                     name##i##type(temp->u.w,                            \
1089                                   rn(node->v.w), node->w.w);            \
1090                 else {                                                  \
1091                     word = name##i##type(_jit->pc.w,                    \
1092                                          rn(node->v.w), node->w.w);     \
1093                     patch(word, node);                                  \
1094                 }                                                       \
1095                 break
1096 #define case_brf(name, type, size)                                      \
1097             case jit_code_##name##i##type:                              \
1098                 temp = node->u.n;                                       \
1099                 assert(temp->code == jit_code_label ||                  \
1100                        temp->code == jit_code_epilog);                  \
1101                 if (temp->flag & jit_flag_patch)                        \
1102                     name##i##type(temp->u.w, rn(node->v.w),             \
1103                                 (jit_float##size##_t *)node->w.n->u.w); \
1104                 else {                                                  \
1105                     word = name##i##type(_jit->pc.w, rn(node->v.w),     \
1106                                 (jit_float##size##_t *)node->w.n->u.w); \
1107                     patch(word, node);                                  \
1108                 }                                                       \
1109                 break
1110     for (node = _jitc->head; node; node = node->next) {
1111         if (_jit->pc.uc >= _jitc->code.end)
1112             return (NULL);
1113
1114         value = jit_classify(node->code);
1115 #if GET_JIT_SIZE
1116         sync();
1117 #endif
1118 #if DEVEL_DISASSEMBLER
1119         /* FIXME DEVEL_DISASSEMBLER should become DISASSEMBLER,
1120          * but a "real" DEVEL_DISASSEMBLER should be required
1121          * to turn the below "#if 0" into "#if 1" */
1122 #  if 0         /* Since disassembly outputs 3 instructions at a time,
1123                  * make it "#if 1" for more clear debug output. */
1124         sync();
1125 #  endif
1126         node->offset = (jit_uword_t)_jit->pc.w - (jit_uword_t)prevw;
1127         prevw = _jit->pc.w;
1128 #endif
1129         jit_regarg_set(node, value);
1130         switch (node->code) {
1131             case jit_code_align:
1132                 assert(!(node->u.w & (node->u.w - 1)));
1133                 sync();
1134                 if (node->u.w > 8)
1135                     nop(node->u.w - 8);
1136                 break;
1137             case jit_code_skip:
1138                 sync();
1139                 nop((node->u.w + 7) & ~7);
1140                 break;
1141             case jit_code_note:         case jit_code_name:
1142                 sync();
1143                 node->u.w = _jit->pc.w;
1144                 break;
1145             case jit_code_label:
1146                 sync();
1147                 /* remember label is defined */
1148                 node->flag |= jit_flag_patch;
1149                 node->u.w = _jit->pc.w;
1150                 break;
1151                 case_rrr(add,);
1152                 case_rrw(add,);
1153                 case_rrr(addc,);
1154                 case_rrw(addc,);
1155                 case_rrr(addx,);
1156                 case_rrw(addx,);
1157                 case_rrr(sub,);
1158                 case_rrw(sub,);
1159                 case_rrr(subx,);
1160                 case_rrw(subx,);
1161                 case_rrw(rsb,);
1162                 case_rrr(subc,);
1163                 case_rrw(subc,);
1164                 case_rrr(mul,);
1165                 case_rrw(mul,);
1166                 case_rrrr(qmul,);
1167                 case_rrrw(qmul,);
1168                 case_rrrr(qmul, _u);
1169                 case_rrrw(qmul, _u);
1170                 case_rrr(div,);
1171                 case_rrw(div,);
1172                 case_rrr(div, _u);
1173                 case_rrw(div, _u);
1174                 case_rrr(rem,);
1175                 case_rrw(rem,);
1176                 case_rrr(rem, _u);
1177                 case_rrw(rem, _u);
1178                 case_rrrr(qdiv,);
1179                 case_rrrw(qdiv,);
1180                 case_rrrr(qdiv, _u);
1181                 case_rrrw(qdiv, _u);
1182                 case_rrr(and,);
1183                 case_rrw(and,);
1184                 case_rrr(or,);
1185                 case_rrw(or,);
1186                 case_rrr(xor,);
1187                 case_rrw(xor,);
1188                 case_rrr(lsh,);
1189                 case_rrw(lsh,);
1190                 case_rrr(rsh,);
1191                 case_rrw(rsh,);
1192                 case_rrr(rsh, _u);
1193                 case_rrw(rsh, _u);
1194                 case_rr(neg,);
1195                 case_rr(com,);
1196                 case_rr(clo,);
1197                 case_rr(clz,);
1198                 case_rr(cto,);
1199                 case_rr(ctz,);
1200             case jit_code_casr:
1201                 casr(rn(node->u.w), rn(node->v.w),
1202                      rn(node->w.q.l), rn(node->w.q.h));
1203                 break;
1204             case jit_code_casi:
1205                 casi(rn(node->u.w), node->v.w,
1206                      rn(node->w.q.l), rn(node->w.q.h));
1207                 break;
1208                 case_rrr(movn,);
1209                 case_rrr(movz,);
1210                 case_rr(mov,);
1211             case jit_code_movi:
1212                 if (node->flag & jit_flag_node) {
1213                     temp = node->v.n;
1214                     if (temp->code == jit_code_data ||
1215                         (temp->code == jit_code_label &&
1216                          (temp->flag & jit_flag_patch)))
1217                         movi(rn(node->u.w), temp->u.w);
1218                     else {
1219                         assert(temp->code == jit_code_label ||
1220                                temp->code == jit_code_epilog);
1221                         word = movi_p(rn(node->u.w), node->v.w);
1222                         patch(word, node);
1223                     }
1224                 }
1225                 else
1226                     movi(rn(node->u.w), node->v.w);
1227                 break;
1228                 case_rr(hton, _us);
1229                 case_rr(hton, _ui);
1230                 case_rr(hton, _ul);
1231                 case_rr(bswap, _us);
1232                 case_rr(bswap, _ui);
1233                 case_rr(bswap, _ul);
1234                 case_rr(ext, _c);
1235                 case_rr(ext, _uc);
1236                 case_rr(ext, _s);
1237                 case_rr(ext, _us);
1238                 case_rr(ext, _i);
1239                 case_rr(ext, _ui);
1240                 case_rr(trunc, _f_i);
1241                 case_rr(trunc, _d_i);
1242                 case_rr(trunc, _f_l);
1243                 case_rr(trunc, _d_l);
1244                 case_rrr(lt,);
1245                 case_rrw(lt,);
1246                 case_rrr(lt, _u);
1247                 case_rrw(lt, _u);
1248                 case_rrr(le,);
1249                 case_rrw(le,);
1250                 case_rrr(le, _u);
1251                 case_rrw(le, _u);
1252                 case_rrr(eq,);
1253                 case_rrw(eq,);
1254                 case_rrr(ge,);
1255                 case_rrw(ge,);
1256                 case_rrr(ge, _u);
1257                 case_rrw(ge, _u);
1258                 case_rrr(gt,);
1259                 case_rrw(gt,);
1260                 case_rrr(gt, _u);
1261                 case_rrw(gt, _u);
1262                 case_rrr(ne,);
1263                 case_rrw(ne,);
1264                 case_rr(ld, _c);
1265                 case_rw(ld, _c);
1266                 case_rr(ld, _uc);
1267                 case_rw(ld, _uc);
1268                 case_rr(ld, _s);
1269                 case_rw(ld, _s);
1270                 case_rr(ld, _us);
1271                 case_rw(ld, _us);
1272                 case_rr(ld, _i);
1273                 case_rw(ld, _i);
1274                 case_rr(ld, _ui);
1275                 case_rw(ld, _ui);
1276                 case_rr(ld, _l);
1277                 case_rw(ld, _l);
1278                 case_rrr(ldx, _c);
1279                 case_rrw(ldx, _c);
1280                 case_rrr(ldx, _uc);
1281                 case_rrw(ldx, _uc);
1282                 case_rrr(ldx, _s);
1283                 case_rrw(ldx, _s);
1284                 case_rrr(ldx, _us);
1285                 case_rrw(ldx, _us);
1286                 case_rrr(ldx, _i);
1287                 case_rrw(ldx, _i);
1288                 case_rrr(ldx, _ui);
1289                 case_rrw(ldx, _ui);
1290                 case_rrr(ldx, _l);
1291                 case_rrw(ldx, _l);
1292                 case_rr(st, _c);
1293                 case_wr(st, _c);
1294                 case_rr(st, _s);
1295                 case_wr(st, _s);
1296                 case_rr(st, _i);
1297                 case_wr(st, _i);
1298                 case_rr(st, _l);
1299                 case_wr(st, _l);
1300                 case_rrr(stx, _c);
1301                 case_wrr(stx, _c);
1302                 case_rrr(stx, _s);
1303                 case_wrr(stx, _s);
1304                 case_rrr(stx, _i);
1305                 case_wrr(stx, _i);
1306                 case_rrr(stx, _l);
1307                 case_wrr(stx, _l);
1308                 case_brr(blt,);
1309                 case_brw(blt,);
1310                 case_brr(blt, _u);
1311                 case_brw(blt, _u);
1312                 case_brr(ble,);
1313                 case_brw(ble,);
1314                 case_brr(ble, _u);
1315                 case_brw(ble, _u);
1316                 case_brr(beq,);
1317                 case_brw(beq,);
1318                 case_brr(bge,);
1319                 case_brw(bge,);
1320                 case_brr(bge, _u);
1321                 case_brw(bge, _u);
1322                 case_brr(bgt,);
1323                 case_brw(bgt,);
1324                 case_brr(bgt, _u);
1325                 case_brw(bgt, _u);
1326                 case_brr(bne,);
1327                 case_brw(bne,);
1328                 case_brr(bms,);
1329                 case_brw(bms,);
1330                 case_brr(bmc,);
1331                 case_brw(bmc,);
1332                 case_brr(boadd,);
1333                 case_brw(boadd,);
1334                 case_brr(boadd, _u);
1335                 case_brw(boadd, _u);
1336                 case_brr(bxadd,);
1337                 case_brw(bxadd,);
1338                 case_brr(bxadd, _u);
1339                 case_brw(bxadd, _u);
1340                 case_brr(bosub,);
1341                 case_brw(bosub,);
1342                 case_brr(bosub, _u);
1343                 case_brw(bosub, _u);
1344                 case_brr(bxsub,);
1345                 case_brw(bxsub,);
1346                 case_brr(bxsub, _u);
1347                 case_brw(bxsub, _u);
1348                 case_rrr(add, _f);
1349                 case_rrf(add, _f, 32);
1350                 case_rrr(sub, _f);
1351                 case_rrf(sub, _f, 32);
1352                 case_rrf(rsb, _f, 32);
1353                 case_rrr(mul, _f);
1354                 case_rrf(mul, _f, 32);
1355                 case_rrr(div, _f);
1356                 case_rrf(div, _f, 32);
1357                 case_rr(ext, _f);
1358                 case_rr(abs, _f);
1359                 case_rr(neg, _f);
1360                 case_rr(sqrt, _f);
1361                 case_rr(ld, _f);
1362                 case_rw(ld, _f);
1363                 case_rrr(ldx, _f);
1364                 case_rrw(ldx, _f);
1365                 case_rr(st, _f);
1366                 case_wr(st, _f);
1367                 case_rrr(stx, _f);
1368                 case_wrr(stx, _f);
1369                 case_rr(mov, _f);
1370             case jit_code_movi_f:
1371                 assert(node->flag & jit_flag_data);
1372                 movi_f(rn(node->u.w), (jit_float32_t *)node->v.n->u.w);
1373                 break;
1374                 case_rr(ext, _d_f);
1375                 case_rrr(lt, _f);
1376                 case_rrf(lt, _f, 32);
1377                 case_rrr(le, _f);
1378                 case_rrf(le, _f, 32);
1379                 case_rrr(eq, _f);
1380                 case_rrf(eq, _f, 32);
1381                 case_rrr(ge, _f);
1382                 case_rrf(ge, _f, 32);
1383                 case_rrr(gt, _f);
1384                 case_rrf(gt, _f, 32);
1385                 case_rrr(ne, _f);
1386                 case_rrf(ne, _f, 32);
1387                 case_rrr(unlt, _f);
1388                 case_rrf(unlt, _f, 32);
1389                 case_rrr(unle, _f);
1390                 case_rrf(unle, _f, 32);
1391                 case_rrr(uneq, _f);
1392                 case_rrf(uneq, _f, 32);
1393                 case_rrr(unge, _f);
1394                 case_rrf(unge, _f, 32);
1395                 case_rrr(ungt, _f);
1396                 case_rrf(ungt, _f, 32);
1397                 case_rrr(ltgt, _f);
1398                 case_rrf(ltgt, _f, 32);
1399                 case_rrr(ord, _f);
1400                 case_rrf(ord, _f, 32);
1401                 case_rrr(unord, _f);
1402                 case_rrf(unord, _f, 32);
1403                 case_brr(blt, _f);
1404                 case_brf(blt, _f, 32);
1405                 case_brr(ble, _f);
1406                 case_brf(ble, _f, 32);
1407                 case_brr(beq, _f);
1408                 case_brf(beq, _f, 32);
1409                 case_brr(bge, _f);
1410                 case_brf(bge, _f, 32);
1411                 case_brr(bgt, _f);
1412                 case_brf(bgt, _f, 32);
1413                 case_brr(bne, _f);
1414                 case_brf(bne, _f, 32);
1415                 case_brr(bunlt, _f);
1416                 case_brf(bunlt, _f, 32);
1417                 case_brr(bunle, _f);
1418                 case_brf(bunle, _f, 32);
1419                 case_brr(buneq, _f);
1420                 case_brf(buneq, _f, 32);
1421                 case_brr(bunge, _f);
1422                 case_brf(bunge, _f, 32);
1423                 case_brr(bungt, _f);
1424                 case_brf(bungt, _f, 32);
1425                 case_brr(bltgt, _f);
1426                 case_brf(bltgt, _f, 32);
1427                 case_brr(bord, _f);
1428                 case_brf(bord, _f, 32);
1429                 case_brr(bunord, _f);
1430                 case_brf(bunord, _f, 32);
1431                 case_rrr(add, _d);
1432                 case_rrf(add, _d, 64);
1433                 case_rrr(sub, _d);
1434                 case_rrf(sub, _d, 64);
1435                 case_rrf(rsb, _d, 64);
1436                 case_rrr(mul, _d);
1437                 case_rrf(mul, _d, 64);
1438                 case_rrr(div, _d);
1439                 case_rrf(div, _d, 64);
1440                 case_rr(ext, _d);
1441                 case_rr(abs, _d);
1442                 case_rr(neg, _d);
1443                 case_rr(sqrt, _d);
1444                 case_rr(ld, _d);
1445                 case_rw(ld, _d);
1446                 case_rrr(ldx, _d);
1447                 case_rrw(ldx, _d);
1448                 case_rr(st, _d);
1449                 case_wr(st, _d);
1450                 case_rrr(stx, _d);
1451                 case_wrr(stx, _d);
1452                 case_rr(mov, _d);
1453             case jit_code_movi_d:
1454                 assert(node->flag & jit_flag_data);
1455                 movi_d(rn(node->u.w), (jit_float64_t *)node->v.n->u.w);
1456                 break;
1457                 case_rr(ext, _f_d);
1458                 case_rrr(lt, _d);
1459                 case_rrf(lt, _d, 64);
1460                 case_rrr(le, _d);
1461                 case_rrf(le, _d, 64);
1462                 case_rrr(eq, _d);
1463                 case_rrf(eq, _d, 64);
1464                 case_rrr(ge, _d);
1465                 case_rrf(ge, _d, 64);
1466                 case_rrr(gt, _d);
1467                 case_rrf(gt, _d, 64);
1468                 case_rrr(ne, _d);
1469                 case_rrf(ne, _d, 64);
1470                 case_rrr(unlt, _d);
1471                 case_rrf(unlt, _d, 64);
1472                 case_rrr(unle, _d);
1473                 case_rrf(unle, _d, 64);
1474                 case_rrr(uneq, _d);
1475                 case_rrf(uneq, _d, 64);
1476                 case_rrr(unge, _d);
1477                 case_rrf(unge, _d, 64);
1478                 case_rrr(ungt, _d);
1479                 case_rrf(ungt, _d, 64);
1480                 case_rrr(ltgt, _d);
1481                 case_rrf(ltgt, _d, 64);
1482                 case_rrr(ord, _d);
1483                 case_rrf(ord, _d, 64);
1484                 case_rrr(unord, _d);
1485                 case_rrf(unord, _d, 64);
1486                 case_brr(blt, _d);
1487                 case_brf(blt, _d, 64);
1488                 case_brr(ble, _d);
1489                 case_brf(ble, _d, 64);
1490                 case_brr(beq, _d);
1491                 case_brf(beq, _d, 64);
1492                 case_brr(bge, _d);
1493                 case_brf(bge, _d, 64);
1494                 case_brr(bgt, _d);
1495                 case_brf(bgt, _d, 64);
1496                 case_brr(bne, _d);
1497                 case_brf(bne, _d, 64);
1498                 case_brr(bunlt, _d);
1499                 case_brf(bunlt, _d, 64);
1500                 case_brr(bunle, _d);
1501                 case_brf(bunle, _d, 64);
1502                 case_brr(buneq, _d);
1503                 case_brf(buneq, _d, 64);
1504                 case_brr(bunge, _d);
1505                 case_brf(bunge, _d, 64);
1506                 case_brr(bungt, _d);
1507                 case_brf(bungt, _d, 64);
1508                 case_brr(bltgt, _d);
1509                 case_brf(bltgt, _d, 64);
1510                 case_brr(bord, _d);
1511                 case_brf(bord, _d, 64);
1512                 case_brr(bunord, _d);
1513                 case_brf(bunord, _d, 64);
1514             case jit_code_jmpr:
1515                 jmpr(rn(node->u.w));
1516                 break;
1517             case jit_code_jmpi:
1518                 if (node->flag & jit_flag_node) {
1519                     if (_jit->pc.uc == _jit->code.ptr + 16)
1520                         _jitc->jump = 1;
1521                     temp = node->u.n;
1522                     assert(temp->code == jit_code_label ||
1523                            temp->code == jit_code_epilog);
1524                     if (temp->flag & jit_flag_patch)
1525                         jmpi(temp->u.w);
1526                     else {
1527                         word = _jit->code.length -
1528                             (_jit->pc.uc - _jit->code.ptr);
1529                         if (word  >= -16777216 && word <= 16777215)
1530                             word = jmpi(_jit->pc.w);
1531                         else
1532                             word = jmpi_p(_jit->pc.w);
1533                         patch(word, node);
1534                     }
1535                 }
1536                 else
1537                     jmpi(node->u.w);
1538                 break;
1539             case jit_code_callr:
1540                 callr(rn(node->u.w));
1541                 break;
1542             case jit_code_calli:
1543                 if (node->flag & jit_flag_node) {
1544                     temp = node->u.n;
1545                     assert(temp->code == jit_code_label ||
1546                            temp->code == jit_code_epilog);
1547                     word = calli_p(temp->u.w);
1548                     if (!(temp->flag & jit_flag_patch))
1549                         patch(word, node);
1550                 }
1551                 else
1552                     calli(node->u.w);
1553                 break;
1554             case jit_code_prolog:
1555                 jit_regset_set_ui(&_jitc->regs, 0);
1556                 _jitc->pred = 0;
1557                 sync();
1558                 _jitc->function = _jitc->functions.ptr + node->w.w;
1559                 undo.node = node;
1560                 undo.word = _jit->pc.w;
1561                 memcpy(&undo.func, _jitc->function, sizeof(undo.func));
1562 #if DEVEL_DISASSEMBLER
1563                 undo.prevw = prevw;
1564 #endif
1565                 undo.patch_offset = _jitc->patches.offset;
1566                 undo.prolog_offset = _jitc->prolog.offset;
1567             restart_function:
1568                 _jitc->again = 0;
1569                 if (_jitc->jump && !_jitc->function->assume_frame) {
1570                     /* remember prolog to hide offset adjustment for a jump
1571                      * to the start of a function, what is expected to be
1572                      * a common practice as first jit instruction */
1573                     if (_jitc->prolog.offset >= _jitc->prolog.length) {
1574                         _jitc->prolog.length += 16;
1575                         jit_realloc((jit_pointer_t *)&_jitc->prolog.ptr,
1576                                     (_jitc->prolog.length - 16) *
1577                                     sizeof(jit_word_t),
1578                                     _jitc->prolog.length * sizeof(jit_word_t));
1579                     }
1580                     _jitc->prolog.ptr[_jitc->prolog.offset++] = _jit->pc.w;
1581                     /* function descriptor */
1582                     word = _jit->pc.w + 16;
1583                     il(word);                   /* addr */
1584                     il(0);                      /* gp */
1585                 }
1586                 prolog(node);
1587                 break;
1588             case jit_code_epilog:
1589                 assert(_jitc->function == _jitc->functions.ptr + node->w.w);
1590                 if (_jitc->again) {
1591                     for (temp = undo.node->next;
1592                          temp != node; temp = temp->next) {
1593                         if (temp->code == jit_code_label ||
1594                             temp->code == jit_code_epilog)
1595                             temp->flag &= ~jit_flag_patch;
1596                     }
1597                     temp->flag &= ~jit_flag_patch;
1598                     node = undo.node;
1599                     _jit->pc.w = undo.word;
1600                     /* undo.func.self.aoff and undo.func.regset should not
1601                      * be undone, as they will be further updated, and are
1602                      * the reason of the undo. */
1603                     undo.func.self.aoff = _jitc->function->frame +
1604                         _jitc->function->self.aoff;
1605                     jit_regset_set(&undo.func.regset, &_jitc->function->regset);
1606                     /* allocar information also does not need to be undone */
1607                     undo.func.aoffoff = _jitc->function->aoffoff;
1608                     undo.func.allocar = _jitc->function->allocar;
1609                     memcpy(_jitc->function, &undo.func, sizeof(undo.func));
1610 #if DEVEL_DISASSEMBLER
1611                     prevw = undo.prevw;
1612 #endif
1613                     _jitc->patches.offset = undo.patch_offset;
1614                     _jitc->prolog.offset = undo.prolog_offset;
1615                     _jitc->ioff = 0;
1616                     jit_regset_set_ui(&_jitc->regs, 0);
1617                     _jitc->pred = 0;
1618                     goto restart_function;
1619                 }
1620                 /* remember label is defined */
1621                 sync();
1622                 node->flag |= jit_flag_patch;
1623                 node->u.w = _jit->pc.w;
1624                 epilog(node);
1625                 jit_regset_set_ui(&_jitc->regs, 0);
1626                 _jitc->pred = 0;
1627                 _jitc->function = NULL;
1628                 break;
1629             case jit_code_va_start:
1630                 vastart(rn(node->u.w));
1631                 break;
1632             case jit_code_va_arg:
1633                 vaarg(rn(node->u.w), rn(node->v.w));
1634                 break;
1635             case jit_code_va_arg_d:
1636                 vaarg_d(rn(node->u.w), rn(node->v.w));
1637                 break;
1638             case jit_code_live:                 case jit_code_ellipsis:
1639             case jit_code_va_push:
1640             case jit_code_allocai:              case jit_code_allocar:
1641             case jit_code_arg_c:                case jit_code_arg_s:
1642             case jit_code_arg_i:                case jit_code_arg_l:
1643             case jit_code_arg_f:                case jit_code_arg_d:
1644             case jit_code_va_end:
1645             case jit_code_ret:
1646             case jit_code_retr_c:               case jit_code_reti_c:
1647             case jit_code_retr_uc:              case jit_code_reti_uc:
1648             case jit_code_retr_s:               case jit_code_reti_s:
1649             case jit_code_retr_us:              case jit_code_reti_us:
1650             case jit_code_retr_i:               case jit_code_reti_i:
1651             case jit_code_retr_ui:              case jit_code_reti_ui:
1652             case jit_code_retr_l:               case jit_code_reti_l:
1653             case jit_code_retr_f:               case jit_code_reti_f:
1654             case jit_code_retr_d:               case jit_code_reti_d:
1655             case jit_code_getarg_c:             case jit_code_getarg_uc:
1656             case jit_code_getarg_s:             case jit_code_getarg_us:
1657             case jit_code_getarg_i:             case jit_code_getarg_ui:
1658             case jit_code_getarg_l:
1659             case jit_code_getarg_f:             case jit_code_getarg_d:
1660             case jit_code_putargr_c:            case jit_code_putargi_c:
1661             case jit_code_putargr_uc:           case jit_code_putargi_uc:
1662             case jit_code_putargr_s:            case jit_code_putargi_s:
1663             case jit_code_putargr_us:           case jit_code_putargi_us:
1664             case jit_code_putargr_i:            case jit_code_putargi_i:
1665             case jit_code_putargr_ui:           case jit_code_putargi_ui:
1666             case jit_code_putargr_l:            case jit_code_putargi_l:
1667             case jit_code_putargr_f:            case jit_code_putargi_f:
1668             case jit_code_putargr_d:            case jit_code_putargi_d:
1669             case jit_code_pushargr_c:           case jit_code_pushargi_c:
1670             case jit_code_pushargr_uc:          case jit_code_pushargi_uc:
1671             case jit_code_pushargr_s:           case jit_code_pushargi_s:
1672             case jit_code_pushargr_us:          case jit_code_pushargi_us:
1673             case jit_code_pushargr_i:           case jit_code_pushargi_i:
1674             case jit_code_pushargr_ui:          case jit_code_pushargi_ui:
1675             case jit_code_pushargr_l:           case jit_code_pushargi_l:
1676             case jit_code_pushargr_f:           case jit_code_pushargi_f:
1677             case jit_code_pushargr_d:           case jit_code_pushargi_d:
1678             case jit_code_retval_c:             case jit_code_retval_uc:
1679             case jit_code_retval_s:             case jit_code_retval_us:
1680             case jit_code_retval_i:
1681             case jit_code_retval_ui:            case jit_code_retval_l:
1682             case jit_code_retval_f:             case jit_code_retval_d:
1683             case jit_code_prepare:
1684             case jit_code_finishr:              case jit_code_finishi:
1685                 break;
1686             case jit_code_movr_w_f:
1687                 movr_w_f(rn(node->u.w), rn(node->v.w));
1688                 break;
1689             case jit_code_movr_f_w:
1690                 movr_f_w(rn(node->u.w), rn(node->v.w));
1691                 break;
1692             case jit_code_movr_w_d:
1693                 movr_w_d(rn(node->u.w), rn(node->v.w));
1694                 break;
1695             case jit_code_movr_d_w:
1696                 movr_d_w(rn(node->u.w), rn(node->v.w));
1697                 break;
1698             case jit_code_movi_f_w:
1699                 movi_f_w(rn(node->u.w), node->v.n->u.p);
1700                 break;
1701             case jit_code_movi_d_w:
1702                 movi_d_w(rn(node->u.w), node->v.n->u.p);
1703                 break;
1704             default:
1705                 abort();
1706         }
1707         if (jit_carry != _NOREG) {
1708             switch (node->code) {
1709                 case jit_code_note:
1710                 case jit_code_addcr:            case jit_code_addci:
1711                 case jit_code_addxr:            case jit_code_addxi:
1712                 case jit_code_subcr:            case jit_code_subci:
1713                 case jit_code_subxr:            case jit_code_subxi:
1714                     break;
1715                 default:
1716                     jit_unget_reg(jit_carry);
1717                     jit_carry = _NOREG;
1718                     break;
1719             }
1720         }
1721 #if GET_JIT_SIZE
1722         sync();
1723 #endif
1724         jit_regarg_clr(node, value);
1725         if (jit_regset_cmp_ui(&_jitc->regarg, 0) != 0) {
1726             assert(jit_regset_scan1(&_jitc->regarg, 0) == jit_carry);
1727             assert(jit_regset_scan1(&_jitc->regarg, jit_carry + 1) == ULONG_MAX);
1728         }
1729         assert(_jitc->synth == 0);
1730         /* update register live state */
1731         jit_reglive(node);
1732     }
1733     sync();
1734 #undef case_brf
1735 #undef case_brw
1736 #undef case_brr
1737 #undef case_wrr
1738 #undef case_rrrw
1739 #undef case_rrf
1740 #undef case_rrw
1741 #undef case_rrrr
1742 #undef case_rrr
1743 #undef case_wr
1744 #undef case_rw
1745 #undef case_rr
1746
1747     for (offset = 0; offset < _jitc->patches.offset; offset++) {
1748         node = _jitc->patches.ptr[offset].node;
1749         word = node->code == jit_code_movi ? node->v.n->u.w : node->u.n->u.w;
1750         patch_at(node->code, _jitc->patches.ptr[offset].inst, word);
1751     }
1752
1753     jit_flush(_jit->code.ptr, _jit->pc.uc);
1754
1755     return (_jit->code.ptr);
1756 }
1757
1758 #define CODE                            1
1759 #  include "jit_ia64-cpu.c"
1760 #  include "jit_ia64-fpu.c"
1761 #  include "jit_fallback.c"
1762 #undef CODE
1763
1764 void
1765 jit_flush(void *fptr, void *tptr)
1766 {
1767 #if defined(__GNUC__)
1768     jit_word_t          f, t, s;
1769
1770     s = sysconf(_SC_PAGE_SIZE);
1771     f = (jit_word_t)fptr & -s;
1772     t = (((jit_word_t)tptr) + s - 1) & -s;
1773 #  if 0
1774     __clear_cache((void *)f, (void *)t);
1775 #  else
1776     /* __clear_cache is a noop in (old?) gcc, but cache flush is
1777      * required on a multi processor Linux system. */
1778     for (s = f; s < t; s += 32)
1779         asm volatile("fc %0" :: "r"(s) : "memory");
1780 #  endif
1781 #endif
1782 }
1783
1784 /* Use r2 that is reserved to not require a jit_get_reg call, also note
1785  * that addil needs a register that first in 2 bits, so, if using a
1786  * register other than r2 must be less than r8 (or check for a smaller
1787  * immediate, i.e. i0 >= -8192 && i0 <= 8191) */
1788 void
1789 _emit_ldxi(jit_state_t *_jit, jit_gpr_t r0, jit_gpr_t r1, jit_word_t i0)
1790 {
1791     assert(i0 >= -2097152 && i0 < 2097151);
1792     addi(GR_2, rn(r1), i0);
1793     ldr(rn(r0), GR_2);
1794 }
1795
1796 void
1797 _emit_stxi(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_gpr_t r1)
1798 {
1799     assert(i0 >= -2097152 && i0 < 2097151);
1800     addi(GR_2, rn(r0), i0);
1801     str(GR_2, rn(r1));
1802 }
1803
1804 void
1805 _emit_ldxi_d(jit_state_t *_jit, jit_fpr_t r0, jit_gpr_t r1, jit_word_t i0)
1806 {
1807     assert(i0 >= -2097152 && i0 < 2097151);
1808     addi(GR_2, rn(r1), i0);
1809     ldr_d(rn(r0), GR_2);
1810 }
1811
1812 void
1813 _emit_stxi_d(jit_state_t *_jit, jit_word_t i0, jit_gpr_t r0, jit_fpr_t r1)
1814 {
1815     assert(i0 >= -2097152 && i0 < 2097151);
1816     addi(GR_2, rn(r0), i0);
1817     str_d(GR_2, rn(r1));
1818 }
1819
1820 static void
1821 _patch(jit_state_t *_jit, jit_word_t instr, jit_node_t *node)
1822 {
1823     jit_int32_t         flag;
1824
1825     assert(node->flag & jit_flag_node);
1826     if (node->code == jit_code_movi)
1827         flag = node->v.n->flag;
1828     else
1829         flag = node->u.n->flag;
1830     assert(!(flag & jit_flag_patch));
1831     if (_jitc->patches.offset >= _jitc->patches.length) {
1832         jit_realloc((jit_pointer_t *)&_jitc->patches.ptr,
1833                     _jitc->patches.length * sizeof(jit_patch_t),
1834                     (_jitc->patches.length + 1024) * sizeof(jit_patch_t));
1835         _jitc->patches.length += 1024;
1836     }
1837     _jitc->patches.ptr[_jitc->patches.offset].inst = instr;
1838     _jitc->patches.ptr[_jitc->patches.offset].node = node;
1839     ++_jitc->patches.offset;
1840 }