/*
- * Copyright (C) 2012-2019 Free Software Foundation, Inc.
+ * Copyright (C) 2012-2023 Free Software Foundation, Inc.
*
* This file is part of GNU lightning.
*
#include <lightning.h>
#include <lightning/jit_private.h>
-#ifdef _WIN32
-# include <mman.h>
-#else
+#if HAVE_MMAP
# include <sys/mman.h>
#endif
#if defined(__sgi)
static void
_jit_dataset(jit_state_t *_jit);
+#define block_update_set(block, target) _block_update_set(_jit, block, target)
+static jit_bool_t _block_update_set(jit_state_t*, jit_block_t*, jit_block_t*);
+
+#define propagate_backward(block) _propagate_backward(_jit, block)
+static void _propagate_backward(jit_state_t*, jit_block_t*);
+
+#define check_block_again() _check_block_again(_jit)
+static jit_bool_t _check_block_again(jit_state_t*);
+
+#define do_setup() _do_setup(_jit)
+static void _do_setup(jit_state_t*);
+
#define jit_setup(block) _jit_setup(_jit, block)
static void
_jit_setup(jit_state_t *_jit, jit_block_t *block);
-#define jit_follow(block, todo) _jit_follow(_jit, block, todo)
+#define do_follow(always) _do_follow(_jit, always)
+static void _do_follow(jit_state_t*, jit_bool_t);
+
+#define jit_follow(block) _jit_follow(_jit, block)
static void
-_jit_follow(jit_state_t *_jit, jit_block_t *block, jit_bool_t *todo);
+_jit_follow(jit_state_t *_jit, jit_block_t *block);
#define jit_update(node, live, mask) _jit_update(_jit, node, live, mask)
static void
_reverse_jump(jit_state_t *_jit, jit_node_t *prev, jit_node_t *node);
#define redundant_store(node, jump) _redundant_store(_jit, node, jump)
-static void
+static jit_bool_t
_redundant_store(jit_state_t *_jit, jit_node_t *node, jit_bool_t jump);
#define simplify_movr(p, n, k, s) _simplify_movr(_jit, p, n, k, s)
_simplify_spill(jit_state_t *_jit, jit_node_t *node, jit_int32_t regno);
#define simplify() _simplify(_jit)
-static void
+static jit_bool_t
_simplify(jit_state_t *_jit);
#define jit_reg_undef -1
for (regno = 0; regno < _jitc->reglen; regno++) {
if ((jit_class(_rvs[regno].spec) & spec) == spec &&
!jit_regset_tstbit(&_jitc->regarg, regno) &&
- !jit_regset_tstbit(&_jitc->reglive, regno))
+ !jit_regset_tstbit(&_jitc->reglive, regno)) {
+ if (jit_regset_tstbit(&_jitc->regmask, regno)) {
+ /* search further, attempting to find a truly known
+ * free register, not just one in unknown state. */
+ jit_int32_t regfree;
+
+ for (regfree = regno + 1;
+ regfree < _jitc->reglen; regfree++) {
+ if ((jit_class(_rvs[regfree].spec) & spec) == spec &&
+ !jit_regset_tstbit(&_jitc->regarg, regfree) &&
+ !jit_regset_tstbit(&_jitc->reglive, regfree) &&
+ !jit_regset_tstbit(&_jitc->regmask, regfree)) {
+ regno = regfree;
+ break;
+ }
+ }
+ }
goto regarg;
+ }
}
/* search for a register matching spec that is not an argument
jit_regset_new(&_jitc->regsav);
jit_regset_new(&_jitc->reglive);
jit_regset_new(&_jitc->regmask);
+ jit_regset_new(&_jitc->explive);
jit_init();
#if DEVEL_DISASSEMBLER
jit_really_clear_state();
#endif
+#if HAVE_MMAP
if (!_jit->user_code)
munmap(_jit->code.ptr, _jit->code.length);
if (!_jit->user_data)
munmap(_jit->data.ptr, _jit->data.length);
+#endif
jit_free((jit_pointer_t *)&_jit);
}
return (link_node(node));
}
+jit_node_t *
+_jit_new_node_wwq(jit_state_t *_jit, jit_code_t code,
+ jit_word_t u, jit_word_t v,
+ jit_int32_t l, jit_int32_t h)
+{
+ jit_node_t *node = new_node(code);
+ assert(!_jitc->realize);
+ node->u.w = u;
+ node->v.w = v;
+ node->w.q.l = l;
+ node->w.q.h = h;
+ return (link_node(node));
+}
+
jit_node_t *
_jit_new_node_wwf(jit_state_t *_jit, jit_code_t code,
jit_word_t u, jit_word_t v, jit_float32_t w)
mask = 0;
break;
case jit_code_live: case jit_code_va_end:
- case jit_code_retr: case jit_code_retr_f: case jit_code_retr_d:
- case jit_code_pushargr: case jit_code_pushargr_f:
+ case jit_code_retr_c: case jit_code_retr_uc:
+ case jit_code_retr_s: case jit_code_retr_us:
+ case jit_code_retr_i: case jit_code_retr_ui:
+ case jit_code_retr_l:
+ case jit_code_retr_f: case jit_code_retr_d:
+ case jit_code_pushargr_c:
+ case jit_code_pushargr_uc:
+ case jit_code_pushargr_s:
+ case jit_code_pushargr_us:
+ case jit_code_pushargr_i:
+ case jit_code_pushargr_ui:
+ case jit_code_pushargr_l:
+ case jit_code_pushargr_f:
case jit_code_pushargr_d:
case jit_code_finishr: /* synthesized will set jit_cc_a0_jmp */
mask = jit_cc_a0_reg;
break;
- case jit_code_align: case jit_code_reti: case jit_code_pushargi:
- case jit_code_finishi: /* synthesized will set jit_cc_a0_jmp */
+ case jit_code_align: case jit_code_skip:
+ case jit_code_reti_c: case jit_code_reti_uc:
+ case jit_code_reti_s: case jit_code_reti_us:
+ case jit_code_reti_i: case jit_code_reti_ui:
+ case jit_code_reti_l:
+ case jit_code_pushargi_c:
+ case jit_code_pushargi_uc:
+ case jit_code_pushargi_s:
+ case jit_code_pushargi_us:
+ case jit_code_pushargi_i:
+ case jit_code_pushargi_ui:
+ case jit_code_pushargi_l:
+ case jit_code_finishi: /* synthesized will set jit_cc_a0_jmp */
mask = jit_cc_a0_int;
break;
case jit_code_reti_f: case jit_code_pushargi_f:
case jit_code_allocai:
mask = jit_cc_a0_int|jit_cc_a1_int;
break;
- case jit_code_arg: case jit_code_arg_f: case jit_code_arg_d:
+ case jit_code_arg_c: case jit_code_arg_s:
+ case jit_code_arg_i: case jit_code_arg_l:
+ case jit_code_arg_f: case jit_code_arg_d:
mask = jit_cc_a0_int|jit_cc_a0_arg;
break;
case jit_code_calli: case jit_code_jmpi:
case jit_code_getarg_f: case jit_code_getarg_d:
mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_arg;
break;
- case jit_code_putargr: case jit_code_putargr_f:
- case jit_code_putargr_d:
+ case jit_code_putargr_c:case jit_code_putargr_uc:
+ case jit_code_putargr_s:case jit_code_putargr_us:
+ case jit_code_putargr_i:case jit_code_putargr_ui:
+ case jit_code_putargr_l:
+ case jit_code_putargr_f:case jit_code_putargr_d:
mask = jit_cc_a0_reg|jit_cc_a1_arg;
break;
- case jit_code_putargi:
+ case jit_code_putargi_c:case jit_code_putargi_uc:
+ case jit_code_putargi_s:case jit_code_putargi_us:
+ case jit_code_putargi_i:case jit_code_putargi_ui:
+ case jit_code_putargi_l:
mask = jit_cc_a0_int|jit_cc_a1_arg;
break;
case jit_code_putargi_f:
case jit_code_truncr_f_i: case jit_code_truncr_f_l:
case jit_code_truncr_d_i: case jit_code_truncr_d_l:
case jit_code_htonr_us: case jit_code_htonr_ui: case jit_code_htonr_ul:
+ case jit_code_bswapr_us: case jit_code_bswapr_ui: case jit_code_bswapr_ul:
case jit_code_ldr_c: case jit_code_ldr_uc:
case jit_code_ldr_s: case jit_code_ldr_us: case jit_code_ldr_i:
case jit_code_ldr_ui: case jit_code_ldr_l: case jit_code_negr_f:
case jit_code_negr_d: case jit_code_absr_d: case jit_code_sqrtr_d:
case jit_code_movr_d: case jit_code_extr_d: case jit_code_extr_f_d:
case jit_code_ldr_d:
+ case jit_code_clor: case jit_code_clzr:
+ case jit_code_ctor: case jit_code_ctzr:
case jit_code_movr_w_f: case jit_code_movr_f_w:
case jit_code_movr_w_d: case jit_code_movr_d_w:
case jit_code_va_arg: case jit_code_va_arg_d:
case jit_code_bxsubr: case jit_code_bxsubr_u:
mask = jit_cc_a0_jmp|jit_cc_a1_reg|jit_cc_a1_chg|jit_cc_a2_reg;
break;
+ case jit_code_movnr: case jit_code_movzr:
+ mask = jit_cc_a0_reg|jit_cc_a0_cnd|jit_cc_a1_reg|jit_cc_a2_reg;
+ break;
+ case jit_code_casr:
+ mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_reg|
+ jit_cc_a2_reg|jit_cc_a2_rlh;
+ break;
+ case jit_code_casi:
+ mask = jit_cc_a0_reg|jit_cc_a0_chg|jit_cc_a1_int|
+ jit_cc_a2_reg|jit_cc_a2_rlh;
+ break;
default:
abort();
}
label->link = instr;
}
-void
-_jit_optimize(jit_state_t *_jit)
+static void
+_do_setup(jit_state_t *_jit)
{
- jit_bool_t jump;
- jit_bool_t todo;
- jit_int32_t mask;
- jit_node_t *node;
jit_block_t *block;
jit_word_t offset;
- _jitc->function = NULL;
-
- thread_jumps();
- sequential_labels();
- split_branches();
-
/* create initial mapping of live register values
* at the start of a basic block */
for (offset = 0; offset < _jitc->blocks.offset; offset++) {
block = _jitc->blocks.ptr + offset;
if (!block->label)
continue;
- if (block->label->code != jit_code_epilog)
- jit_setup(block);
+ if (block->label->code == jit_code_epilog) {
+ jit_regset_setbit(&block->reglive, JIT_RET);
+ jit_regset_setbit(&block->reglive, JIT_FRET);
+ jit_regset_com(&block->regmask, &block->reglive);
+ continue;
+ }
+ jit_setup(block);
}
+}
+
+static jit_bool_t
+_block_update_set(jit_state_t *_jit,
+ jit_block_t *block, jit_block_t *target)
+{
+ jit_regset_t regmask;
+
+ jit_regset_ior(®mask, &block->reglive, &target->reglive);
+ jit_regset_and(®mask, ®mask, &block->regmask);
+ if (jit_regset_set_p(®mask)) {
+ jit_regset_ior(&block->reglive, &block->reglive, ®mask);
+ jit_regset_and(®mask, &block->reglive, &block->regmask);
+ jit_regset_com(®mask, ®mask);
+ jit_regset_and(&block->regmask, &block->regmask, ®mask);
+ block->again = 1;
+ return (1);
+ }
+ return (0);
+}
+
+static void
+_propagate_backward(jit_state_t *_jit, jit_block_t *block)
+{
+ jit_block_t *prev;
+ jit_word_t offset;
+
+ for (offset = block->label->v.w - 1;
+ offset >= 0; --offset) {
+ prev = _jitc->blocks.ptr + offset;
+ if (!block_update_set(prev, block) ||
+ !(prev->label->flag & jit_flag_head))
+ break;
+ }
+}
+
+static jit_bool_t
+_check_block_again(jit_state_t *_jit)
+{
+ jit_int32_t todo;
+ jit_word_t offset;
+ jit_node_t *node, *label;
+ jit_block_t *block, *target;
+
+ todo = 0;
+ for (offset = 0; offset < _jitc->blocks.offset; offset++) {
+ block = _jitc->blocks.ptr + offset;
+ if (block->again) {
+ todo = 1;
+ break;
+ }
+ }
+ /* If no block changed state */
+ if (!todo)
+ return (0);
- /* set live state of registers not referenced in a block, but
- * referenced in a jump target or normal flow */
do {
todo = 0;
- for (offset = 0; offset < _jitc->blocks.offset; offset++) {
- block = _jitc->blocks.ptr + offset;
- if (!block->label)
+ block = NULL;
+ for (node = _jitc->head; node; node = node->next) {
+ /* Special jumps that match jit_cc_a0_jmp */
+ if (node->code == jit_code_calli || node->code == jit_code_callr)
continue;
- if (block->label->code != jit_code_epilog)
- jit_follow(block, &todo);
+
+ /* Remember current label */
+ if (node->code == jit_code_label ||
+ node->code == jit_code_prolog ||
+ node->code == jit_code_epilog) {
+
+ /* If previous block does not pass through */
+ if (!(node->flag & jit_flag_head))
+ block = NULL;
+
+ target = _jitc->blocks.ptr + node->v.w;
+ if (block && target->again && block_update_set(block, target)) {
+ propagate_backward(block);
+ todo = 1;
+ }
+ block = target;
+ }
+ /* If not the first jmpi */
+ else if (block) {
+ /* If a jump to dynamic address or if a jump to raw address */
+ if (!(jit_classify(node->code) & jit_cc_a0_jmp) ||
+ !(node->flag & jit_flag_node))
+ continue;
+ label = node->u.n;
+ /* Mark predecessor needs updating due to target change */
+ target = _jitc->blocks.ptr + label->v.w;
+ if (target->again && block_update_set(block, target)) {
+ propagate_backward(block);
+ todo = 1;
+ }
+ }
}
- } while (todo);
+ }
+ while (todo);
+
+ return (todo);
+}
+
+static void
+_do_follow(jit_state_t *_jit, jit_bool_t always)
+{
+ jit_block_t *block;
+ jit_word_t offset;
+
+ /* set live state of registers not referenced in a block, but
+ * referenced in a jump target or normal flow */
+ for (offset = 0; offset < _jitc->blocks.offset; offset++) {
+ block = _jitc->blocks.ptr + offset;
+ if (!block->label || block->label->code == jit_code_epilog)
+ continue;
+ if (always || block->again) {
+ block->again = 0;
+ jit_follow(block);
+ }
+ }
+}
+
+void
+_jit_optimize(jit_state_t *_jit)
+{
+ jit_bool_t jump;
+ jit_bool_t todo;
+ jit_int32_t mask;
+ jit_node_t *node;
+ jit_block_t *block;
+ jit_word_t offset;
+ jit_regset_t regmask;
+
+ todo = 0;
+ _jitc->function = NULL;
+
+ thread_jumps();
+ sequential_labels();
+ split_branches();
+ do_setup();
+ do_follow(1);
patch_registers();
- simplify();
+ if (simplify())
+ todo = 1;
+
+ jit_regset_set_ui(®mask, 0);
+ for (offset = 0; offset < _jitc->reglen; offset++) {
+ if ((jit_class(_rvs[offset].spec) & (jit_class_gpr|jit_class_fpr)) &&
+ (jit_class(_rvs[offset].spec) & jit_class_sav) == jit_class_sav)
+ jit_regset_setbit(®mask, offset);
+ }
- /* figure out labels that are only reached with a jump
- * and is required to do a simple redundant_store removal
- * on jit_beqi below */
+ /* Figure out labels that are only reached with a jump */
jump = 1;
for (node = _jitc->head; node; node = node->next) {
switch (node->code) {
case jit_code_label:
- if (!jump)
+ if (!jump) {
node->flag |= jit_flag_head;
+ if (!node->link) {
+ /* Block is dead code or only reachable with an
+ * indirect jumps. In such condition, must assume
+ * all callee save registers are live. */
+ block = _jitc->blocks.ptr + node->v.w;
+ jit_regset_ior(&block->reglive,
+ &block->reglive, ®mask);
+ /* Cleanup regmask */
+ block_update_set(block, block);
+ }
+ }
break;
case jit_code_jmpi: case jit_code_jmpr:
case jit_code_epilog:
node->v.w &= ~jit_regno_patch;
if (mask & jit_cc_a2_reg)
node->w.w &= ~jit_regno_patch;
- switch (node->code) {
- case jit_code_prolog:
- _jitc->function = _jitc->functions.ptr + node->w.w;
- break;
- case jit_code_epilog:
- _jitc->function = NULL;
- break;
- case jit_code_beqi:
- redundant_store(node, 1);
- break;
- case jit_code_bnei:
- redundant_store(node, 0);
- break;
- default:
+ if (node->code == jit_code_beqi) {
+ if (redundant_store(node, 1)) {
+ block = _jitc->blocks.ptr + ((jit_node_t *)node->u.n)->v.w;
+ block->again = 1;
+ todo = 1;
+ }
+ }
+ else if (node->code == jit_code_bnei) {
+ if (redundant_store(node, 0)) {
+ block = _jitc->blocks.ptr + ((jit_node_t *)node->u.n)->v.w;
+ block->again = 1;
+ todo = 1;
+ }
+ }
+ }
+
+ if (!todo)
+ todo = check_block_again();
+
+ /* If instructions were removed or first pass did modify the entry
+ * state of any block */
+ if (todo) {
+ do_setup();
+ todo = 0;
+ do {
+ do_follow(0);
+ /* If any block again has the entry state modified. */
+ todo = check_block_again();
+ } while (todo);
+ }
+
+ for (node = _jitc->head; node; node = node->next) {
+ mask = jit_classify(node->code);
+ if (mask & jit_cc_a0_reg)
+ node->u.w &= ~jit_regno_patch;
+ if (mask & jit_cc_a1_reg)
+ node->v.w &= ~jit_regno_patch;
+ if (mask & jit_cc_a2_reg)
+ node->w.w &= ~jit_regno_patch;
+ if (node->code == jit_code_prolog)
+ _jitc->function = _jitc->functions.ptr + node->w.w;
+ else if(node->code == jit_code_epilog)
+ _jitc->function = NULL;
+ else {
#if JIT_HASH_CONSTS
- if (mask & jit_cc_a0_flt) {
- node->u.p = jit_data(&node->u.f, sizeof(jit_float32_t), 4);
- node->flag |= jit_flag_node | jit_flag_data;
- }
- else if (mask & jit_cc_a0_dbl) {
- node->u.p = jit_data(&node->u.d, sizeof(jit_float64_t), 8);
- node->flag |= jit_flag_node | jit_flag_data;
- }
- else if (mask & jit_cc_a1_flt) {
- node->v.p = jit_data(&node->v.f, sizeof(jit_float32_t), 4);
- node->flag |= jit_flag_node | jit_flag_data;
- }
- else if (mask & jit_cc_a1_dbl) {
- node->v.p = jit_data(&node->v.d, sizeof(jit_float64_t), 8);
- node->flag |= jit_flag_node | jit_flag_data;
- }
- else if (mask & jit_cc_a2_flt) {
- node->w.p = jit_data(&node->w.f, sizeof(jit_float32_t), 4);
- node->flag |= jit_flag_node | jit_flag_data;
- }
- else if (mask & jit_cc_a2_dbl) {
- node->w.p = jit_data(&node->w.d, sizeof(jit_float64_t), 8);
- node->flag |= jit_flag_node | jit_flag_data;
- }
+ if (mask & jit_cc_a0_flt) {
+ node->u.p = jit_data(&node->u.f, sizeof(jit_float32_t), 4);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
+ else if (mask & jit_cc_a0_dbl) {
+ node->u.p = jit_data(&node->u.d, sizeof(jit_float64_t), 8);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
+ else if (mask & jit_cc_a1_flt) {
+ node->v.p = jit_data(&node->v.f, sizeof(jit_float32_t), 4);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
+ else if (mask & jit_cc_a1_dbl) {
+ node->v.p = jit_data(&node->v.d, sizeof(jit_float64_t), 8);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
+ else if (mask & jit_cc_a2_flt) {
+ node->w.p = jit_data(&node->w.f, sizeof(jit_float32_t), 4);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
+ else if (mask & jit_cc_a2_dbl) {
+ node->w.p = jit_data(&node->w.d, sizeof(jit_float64_t), 8);
+ node->flag |= jit_flag_node | jit_flag_data;
+ }
#endif
- if (_jitc->function) {
- if ((mask & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
- (jit_cc_a0_reg|jit_cc_a0_chg)) {
- if (mask & jit_cc_a0_rlh) {
- jit_regset_setbit(&_jitc->function->regset,
- jit_regno(node->u.q.l));
- jit_regset_setbit(&_jitc->function->regset,
- jit_regno(node->u.q.h));
- }
- else
- jit_regset_setbit(&_jitc->function->regset,
- jit_regno(node->u.w));
- }
- if ((mask & (jit_cc_a1_reg|jit_cc_a1_chg)) ==
- (jit_cc_a1_reg|jit_cc_a1_chg))
+ if (_jitc->function) {
+ if ((mask & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
+ (jit_cc_a0_reg|jit_cc_a0_chg)) {
+ if (mask & jit_cc_a0_rlh) {
jit_regset_setbit(&_jitc->function->regset,
- jit_regno(node->v.w));
- if ((mask & (jit_cc_a2_reg|jit_cc_a2_chg)) ==
- (jit_cc_a2_reg|jit_cc_a2_chg))
+ jit_regno(node->u.q.l));
jit_regset_setbit(&_jitc->function->regset,
- jit_regno(node->w.w));
+ jit_regno(node->u.q.h));
+ }
+ else
+ jit_regset_setbit(&_jitc->function->regset,
+ jit_regno(node->u.w));
}
- break;
+ if ((mask & (jit_cc_a1_reg|jit_cc_a1_chg)) ==
+ (jit_cc_a1_reg|jit_cc_a1_chg))
+ jit_regset_setbit(&_jitc->function->regset,
+ jit_regno(node->v.w));
+ if ((mask & (jit_cc_a2_reg|jit_cc_a2_chg)) ==
+ (jit_cc_a2_reg|jit_cc_a2_chg))
+ jit_regset_setbit(&_jitc->function->regset,
+ jit_regno(node->w.w));
+ }
}
}
}
case jit_code_label: case jit_code_prolog: case jit_code_epilog:
block = _jitc->blocks.ptr + node->v.w;
jit_regset_set(&_jitc->reglive, &block->reglive);
+ jit_regset_set_ui(&_jitc->explive, 0);
+ break;
+ case jit_code_live:
+ jit_regset_setbit(&_jitc->explive, node->u.w);
break;
case jit_code_callr:
value = jit_regno(node->u.w);
else
jit_regset_setbit(&_jitc->reglive, node->v.w);
}
- if ((value & jit_cc_a2_reg) && !(node->w.w & jit_regno_patch)) {
- if (value & jit_cc_a2_chg) {
- jit_regset_clrbit(&_jitc->reglive, node->w.w);
- jit_regset_setbit(&_jitc->regmask, node->w.w);
+ if (value & jit_cc_a2_reg) {
+ if (value & jit_cc_a2_rlh) {
+ /* Assume registers are not changed */
+ if (!(node->w.q.l & jit_regno_patch))
+ jit_regset_setbit(&_jitc->reglive, node->w.q.l);
+ if (!(node->w.q.h & jit_regno_patch))
+ jit_regset_setbit(&_jitc->reglive, node->w.q.h);
+ }
+ else {
+ if (!(node->w.w & jit_regno_patch)) {
+ if (value & jit_cc_a2_chg) {
+ jit_regset_clrbit(&_jitc->reglive, node->w.w);
+ jit_regset_setbit(&_jitc->regmask, node->w.w);
+ }
+ else
+ jit_regset_setbit(&_jitc->reglive, node->w.w);
+ }
}
- else
- jit_regset_setbit(&_jitc->reglive, node->w.w);
}
if (jit_regset_set_p(&_jitc->regmask)) {
jit_update(node->next, &_jitc->reglive, &_jitc->regmask);
}
if (value & jit_cc_a1_reg)
jit_regset_setbit(&_jitc->regarg, jit_regno(node->v.w));
- if (value & jit_cc_a2_reg)
- jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.w));
+ if (value & jit_cc_a2_reg) {
+ if (value & jit_cc_a2_rlh) {
+ jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.q.l));
+ jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.q.h));
+ }
+ else
+ jit_regset_setbit(&_jitc->regarg, jit_regno(node->w.w));
+ }
+ /* Prevent incorrect detection of running out of registers
+ * if will need to patch jump, and all registers have been
+ * used in the current block. */
+ if (node->code == jit_code_jmpi && (node->flag & jit_flag_node)) {
+ jit_node_t *label = node->u.n;
+ jit_block_t *block = _jitc->blocks.ptr + label->v.w;
+ jit_regset_set(&_jitc->reglive, &block->reglive);
+ jit_regset_set(&_jitc->regmask, &block->regmask);
+ if (jit_regset_set_p(&_jitc->explive)) {
+ jit_regset_ior(&_jitc->reglive, &block->reglive, &_jitc->explive);
+ jit_regset_xor(&_jitc->regmask, &_jitc->regmask, &_jitc->explive);
+ }
+ }
}
void
}
if (value & jit_cc_a1_reg)
jit_regset_clrbit(&_jitc->regarg, jit_regno(node->v.w));
- if (value & jit_cc_a2_reg)
- jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.w));
+ if (value & jit_cc_a2_reg) {
+ if (value & jit_cc_a2_rlh) {
+ jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.q.l));
+ jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.q.h));
+ }
+ else
+ jit_regset_clrbit(&_jitc->regarg, jit_regno(node->w.w));
+ }
}
void
#endif
assert(!_jitc->dataset);
+#if !HAVE_MMAP
+ assert(_jit->user_data);
+#else
if (!_jit->user_data) {
/* create read only data buffer */
close(mmap_fd);
#endif
}
+#endif /* !HAVE_MMAP */
if (!_jitc->no_data)
jit_memcpy(_jit->data.ptr, _jitc->data.ptr, _jitc->data.offset);
#if defined(__sgi)
int mmap_fd;
#endif
+ int mmap_prot, mmap_flags;
if (!_jitc->realize)
jit_realize();
_jitc->emit = 1;
+#if !HAVE_MMAP
+ assert(_jit->user_code);
+#else
if (!_jit->user_code) {
+ mmap_prot = PROT_READ | PROT_WRITE;
+#if !(__OpenBSD__ || __APPLE__)
+ mmap_prot |= PROT_EXEC;
+#endif
+#if __NetBSD__
+ mmap_prot = PROT_MPROTECT(mmap_prot);
+ mmap_flags = 0;
+#else
+ mmap_flags = MAP_PRIVATE;
+#endif
+ mmap_flags |= MAP_ANON;
#if defined(__sgi)
mmap_fd = open("/dev/zero", O_RDWR);
#endif
_jit->code.ptr = mmap(NULL, _jit->code.length,
- PROT_EXEC | PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANON, mmap_fd, 0);
+ mmap_prot, mmap_flags, mmap_fd, 0);
assert(_jit->code.ptr != MAP_FAILED);
}
+#endif /* !HAVE_MMAP */
_jitc->code.end = _jit->code.ptr + _jit->code.length -
jit_get_max_instr();
_jit->pc.uc = _jit->code.ptr;
for (;;) {
+#if __NetBSD__
+ result = mprotect(_jit->code.ptr, _jit->code.length,
+ PROT_READ | PROT_WRITE);
+ assert(result == 0);
+#endif
if ((code = emit_code()) == NULL) {
_jitc->patches.offset = 0;
for (node = _jitc->head; node; node = node->next) {
node->code == jit_code_epilog))
node->flag &= ~jit_flag_patch;
}
+#if !HAVE_MMAP
+ assert(_jit->user_code);
+#else
if (_jit->user_code)
goto fail;
#if GET_JIT_SIZE
# endif
#else
_jit->code.ptr = mmap(NULL, length,
- PROT_EXEC | PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANON, mmap_fd, 0);
+ mmap_prot, mmap_flags, mmap_fd, 0);
#endif
assert(_jit->code.ptr != MAP_FAILED);
_jitc->code.end = _jit->code.ptr + _jit->code.length -
jit_get_max_instr();
_jit->pc.uc = _jit->code.ptr;
+#endif /* !HAVE_MMAP */
}
else
break;
if (_jit->user_data)
jit_free((jit_pointer_t *)&_jitc->data.ptr);
+#if HAVE_MMAP
else {
- result = mprotect(_jit->data.ptr, _jit->data.length, PROT_READ);
+ result = mprotect(_jit->data.ptr,
+ _jit->data.length, PROT_READ);
assert(result == 0);
}
if (!_jit->user_code) {
- result = mprotect(_jit->code.ptr, _jit->code.length,
- PROT_READ | PROT_EXEC);
+ _jit->code.protected = _jit->pc.uc - _jit->code.ptr;
+# if __riscv && __WORDSIZE == 64
+ /* FIXME should start adding consts at a page boundary */
+ _jit->code.protected -= _jitc->consts.hash.count * sizeof(jit_word_t);
+# endif
+ result = mprotect(_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_EXEC);
assert(result == 0);
}
+#endif /* HAVE_MMAP */
return (_jit->code.ptr);
fail:
return (NULL);
}
+void
+_jit_protect(jit_state_t *_jit)
+{
+#if !HAVE_MMAP
+ assert (_jit->user_code);
+#else
+ int result;
+ if (_jit->user_code) return;
+ result = mprotect (_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_EXEC);
+ assert (result == 0);
+#endif
+}
+
+void
+_jit_unprotect(jit_state_t *_jit)
+{
+#if !HAVE_MMAP
+ assert (_jit->user_code);
+#else
+ int result;
+ if (_jit->user_code) return;
+ result = mprotect (_jit->code.ptr, _jit->code.protected, PROT_READ | PROT_WRITE);
+ assert (result == 0);
+#endif
+}
+
void
_jit_frame(jit_state_t *_jit, jit_int32_t frame)
{
* or normal flow that have a live register not used in this block.
*/
static void
-_jit_follow(jit_state_t *_jit, jit_block_t *block, jit_bool_t *todo)
+_jit_follow(jit_state_t *_jit, jit_block_t *block)
{
jit_node_t *node;
jit_block_t *next;
/* Remove from unknown state bitmask. */
jit_regset_com(®temp, ®temp);
jit_regset_and(&block->regmask, &block->regmask, ®temp);
- *todo = 1;
+ block->again = 1;
}
case jit_code_prolog:
case jit_code_epilog:
default:
value = jit_classify(node->code);
if (value & jit_cc_a2_reg) {
- if (!(node->w.w & jit_regno_patch)) {
- if (jit_regset_tstbit(®mask, node->w.w)) {
- jit_regset_clrbit(®mask, node->w.w);
- if (!(value & jit_cc_a2_chg))
- jit_regset_setbit(®live, node->w.w);
+ if (value & jit_cc_a2_rlh) {
+ if (!(node->w.q.l & jit_regno_patch)) {
+ /* Assume register is not changed */
+ if (jit_regset_tstbit(®mask, node->w.q.l))
+ jit_regset_clrbit(®mask, node->w.q.l);
+ }
+ if (!(node->w.q.h & jit_regno_patch)) {
+ if (jit_regset_tstbit(®mask, node->w.q.h))
+ jit_regset_clrbit(®mask, node->w.q.h);
+ }
+ }
+ else {
+ if (value & jit_cc_a2_reg) {
+ if (!(node->w.w & jit_regno_patch)) {
+ if (jit_regset_tstbit(®mask, node->w.w)) {
+ jit_regset_clrbit(®mask, node->w.w);
+ if (!(value & jit_cc_a2_chg))
+ jit_regset_setbit(®live, node->w.w);
+ }
+ }
}
}
}
jit_regset_com(®temp, ®temp);
jit_regset_and(&block->regmask,
&block->regmask, ®temp);
- *todo = 1;
+ block->again = 1;
}
}
else {
* means that only JIT_Vn registers can be trusted on
* arrival of jmpr.
*/
+ jit_regset_set_ui(®mask, 0);
for (regno = 0; regno < _jitc->reglen; regno++) {
spec = jit_class(_rvs[regno].spec);
- if (jit_regset_tstbit(®mask, regno) &&
- (spec & (jit_class_gpr|jit_class_fpr)) &&
- !(spec & jit_class_sav))
- jit_regset_clrbit(®mask, regno);
+ if ((spec & (jit_class_gpr|jit_class_fpr)) &&
+ (spec & jit_class_sav))
+ jit_regset_setbit(®mask, regno);
}
/* Assume non callee save registers are live due
* to jump to unknown location. */
/* Treat all callee save as live. */
- jit_regset_ior(®live, ®live, ®mask);
+ jit_regset_ior(&block->reglive, ®live, ®mask);
/* Treat anything else as dead. */
- jit_regset_set_ui(®mask, 0);
+ return;
}
}
break;
default:
value = jit_classify(node->code);
if (value & jit_cc_a2_reg) {
- if (!(node->w.w & jit_regno_patch)) {
- if (jit_regset_tstbit(mask, node->w.w)) {
- jit_regset_clrbit(mask, node->w.w);
- if (!(value & jit_cc_a2_chg))
- jit_regset_setbit(live, node->w.w);
+ if (value & jit_cc_a2_rlh) {
+ if (!(node->w.q.l & jit_regno_patch)) {
+ /* Assume register is not changed */
+ if (jit_regset_tstbit(mask, node->w.q.l))
+ jit_regset_clrbit(mask, node->w.q.l);
+ }
+ if (!(node->w.q.h & jit_regno_patch)) {
+ if (jit_regset_tstbit(mask, node->w.q.h))
+ jit_regset_clrbit(mask, node->w.q.h);
+ }
+ }
+ else {
+ if (!(node->w.w & jit_regno_patch)) {
+ if (jit_regset_tstbit(mask, node->w.w)) {
+ jit_regset_clrbit(mask, node->w.w);
+ if (!(value & jit_cc_a2_chg))
+ jit_regset_setbit(live, node->w.w);
+ }
}
}
}
* means that only JIT_Vn registers can be trusted on
* arrival of jmpr.
*/
+ jit_regset_set_ui(mask, 0);
for (regno = 0; regno < _jitc->reglen; regno++) {
spec = jit_class(_rvs[regno].spec);
- if (jit_regset_tstbit(mask, regno) &&
- (spec & (jit_class_gpr|jit_class_fpr)) &&
- !(spec & jit_class_sav))
- jit_regset_clrbit(mask, regno);
+ if ((spec & (jit_class_gpr|jit_class_fpr)) &&
+ (spec & jit_class_sav))
+ jit_regset_setbit(mask, regno);
}
/* Assume non callee save registers are live due
* to jump to unknown location. */
/* Treat all callee save as live. */
jit_regset_ior(live, live, mask);
+ /* Prevent explicitly set as live registers to
+ * be used as a temporary for the jmpi. */
+ jit_regset_ior(live, live, &_jitc->explive);
/* Treat anything else as dead. */
- jit_regset_set_ui(mask, 0);
+ return;
}
}
break;
if ((jump = node->link)) {
for (; jump; jump = link) {
link = jump->link;
- jump->u.n = prev;
+ if (jump->code == jit_code_movi)
+ jump->v.n = prev;
+ else
+ jump->u.n = prev;
jump->link = prev->link;
prev->link = jump;
}
if ((jump = next->link)) {
for (; jump; jump = link) {
link = jump->link;
- jump->u.n = node;
+ if (jump->code == jit_code_movi)
+ jump->v.n = node;
+ else
+ jump->u.n = node;
jump->link = node->link;
node->link = jump;
}
jit_node_t *next;
jit_node_t *label;
jit_block_t *block;
+ jit_block_t *blocks;
+ jit_word_t offset;
+ jit_word_t length;
+ length = _jitc->blocks.length;
+ jit_alloc((jit_pointer_t *)&blocks, length * sizeof(jit_block_t));
+ if ((node = _jitc->head) &&
+ (node->code == jit_code_label || node->code == jit_code_prolog)) {
+ block = _jitc->blocks.ptr + node->v.w;
+ memcpy(blocks, block, sizeof(jit_block_t));
+ node->v.w = 0;
+ offset = 1;
+ }
+ else
+ offset = 0;
for (node = _jitc->head; node; node = next) {
if ((next = node->next)) {
if (next->code == jit_code_label ||
next->code == jit_code_prolog ||
- next->code == jit_code_epilog)
- continue;
+ next->code == jit_code_epilog) {
+ if (offset >= length) {
+ jit_realloc((jit_pointer_t *)&blocks,
+ length * sizeof(jit_block_t),
+ (length + 16) * sizeof(jit_block_t));
+ length += 16;
+ }
+ block = _jitc->blocks.ptr + next->v.w;
+ memcpy(blocks + offset, block, sizeof(jit_block_t));
+ next->v.w = offset++;
+ }
/* split block on branches */
- if (jit_classify(node->code) & jit_cc_a0_jmp) {
+ else if (jit_classify(node->code) & jit_cc_a0_jmp) {
label = new_node(jit_code_label);
label->next = next;
node->next = label;
- if (_jitc->blocks.offset >= _jitc->blocks.length) {
- jit_word_t length;
-
- length = _jitc->blocks.length + 16;
- jit_realloc((jit_pointer_t *)&_jitc->blocks.ptr,
- _jitc->blocks.length * sizeof(jit_block_t),
- length * sizeof(jit_block_t));
- _jitc->blocks.length = length;
+ if (offset >= length) {
+ jit_realloc((jit_pointer_t *)&blocks,
+ length * sizeof(jit_block_t),
+ (length + 16) * sizeof(jit_block_t));
+ length += 16;
}
- block = _jitc->blocks.ptr + _jitc->blocks.offset;
+ block = blocks + offset;
block->label = label;
- label->v.w = _jitc->blocks.offset;
+ label->v.w = offset++;
jit_regset_new(&block->reglive);
jit_regset_new(&block->regmask);
- ++_jitc->blocks.offset;
}
}
}
+ jit_free((jit_pointer_t *)&_jitc->blocks.ptr);
+ _jitc->blocks.ptr = blocks;
+ _jitc->blocks.offset = offset;
+ _jitc->blocks.length = length;
}
static jit_bool_t
}
break;
case jit_code_name: case jit_code_note:
- case jit_code_align:
break;
default:
return (0);
case jit_code_bgti_f: return (jit_code_bunlei_f);
case jit_code_bner_f: return (jit_code_beqr_f);
- case jit_code_bnei_f: return (jit_code_beqr_f);
+ case jit_code_bnei_f: return (jit_code_beqi_f);
case jit_code_bunltr_f: return (jit_code_bger_f);
case jit_code_bunlti_f: return (jit_code_bgei_f);
return (0);
}
-static void
+static jit_bool_t
_redundant_store(jit_state_t *_jit, jit_node_t *node, jit_bool_t jump)
{
jit_node_t *iter;
jit_word_t word;
jit_int32_t spec;
jit_int32_t regno;
+ jit_bool_t result;
if (jump) {
prev = node->u.n;
if (prev->code == jit_code_epilog)
- return;
+ return (0);
assert(prev->code == jit_code_label);
if ((prev->flag & jit_flag_head) || node->link || prev->link != node)
/* multiple sources */
- return;
+ return (0);
/* if there are sequential labels it will return below */
}
else
prev = node;
+ result = 0;
word = node->w.w;
regno = jit_regno(node->v.w);
for (iter = prev->next; iter; prev = iter, iter = iter->next) {
switch (iter->code) {
case jit_code_label: case jit_code_prolog:
case jit_code_epilog:
- return;
+ return (result);
case jit_code_movi:
if (regno == jit_regno(iter->u.w)) {
if (iter->flag || iter->v.w != word)
- return;
+ return (result);
+ result = 1;
del_node(prev, iter);
iter = prev;
}
default:
spec = jit_classify(iter->code);
if (spec & jit_cc_a0_jmp)
- return;
+ return (result);
if ((spec & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
(jit_cc_a0_reg|jit_cc_a0_chg)) {
if (spec & jit_cc_a0_rlh) {
if (regno == jit_regno(iter->u.q.l) ||
regno == jit_regno(iter->u.q.h))
- return;
+ return (result);
}
else {
if (regno == jit_regno(iter->u.w))
- return;
+ return (result);
}
}
if ((spec & (jit_cc_a1_reg|jit_cc_a1_chg)) ==
(jit_cc_a1_reg|jit_cc_a1_chg)) {
if (regno == jit_regno(iter->v.w))
- return;
+ return (result);
}
if ((spec & (jit_cc_a2_reg|jit_cc_a2_chg)) ==
(jit_cc_a2_reg|jit_cc_a2_chg)) {
if (regno == jit_regno(iter->w.w))
- return;
+ return (result);
}
break;
}
}
+
+ return (result);
}
static jit_bool_t
/* no multiple information, so, if set to a constant,
* prefer to keep that information */
if (value->kind == 0) {
- value->kind = jit_kind_code;
switch (node->code) {
/* no information about signed/unsigned either */
case jit_code_stxi_c: value->code = jit_code_ldxi_c; break;
* once to the same value, and is a common pattern of calls
* to jit_pushargi and jit_pushargr
*/
-static void
+static jit_bool_t
_simplify(jit_state_t *_jit)
{
jit_node_t *prev;
jit_node_t *next;
jit_int32_t info;
jit_int32_t regno;
+ jit_bool_t result;
+ result = 0;
for (prev = NULL, node = _jitc->head; node; prev = node, node = next) {
next = node->next;
switch (node->code) {
* already holding */
patch_register(node->link->next, node,
jit_regno_patch|regno, regno);
+ result = 1;
del_node(_jitc->spill[regno], node->link);
del_node(prev, node);
node = prev;
case jit_code_movr:
regno = jit_regno(node->u.w);
if (simplify_movr(prev, node,
- jit_kind_word, sizeof(jit_word_t)))
+ jit_kind_word, sizeof(jit_word_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_movi:
regno = jit_regno(node->u.w);
if (simplify_movi(prev, node,
- jit_kind_word, sizeof(jit_word_t)))
+ jit_kind_word, sizeof(jit_word_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_movr_f:
regno = jit_regno(node->u.w);
if (simplify_movr(prev, node,
- jit_kind_float32, sizeof(jit_float32_t)))
+ jit_kind_float32, sizeof(jit_float32_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_movi_f:
regno = jit_regno(node->u.w);
if (simplify_movi(prev, node,
- jit_kind_float32, sizeof(jit_float32_t)))
+ jit_kind_float32, sizeof(jit_float32_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_movr_d:
regno = jit_regno(node->u.w);
if (simplify_movr(prev, node,
- jit_kind_float64, sizeof(jit_float64_t)))
+ jit_kind_float64, sizeof(jit_float64_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_movi_d:
regno = jit_regno(node->u.w);
if (simplify_movi(prev, node,
- jit_kind_float64, sizeof(jit_float64_t)))
+ jit_kind_float64, sizeof(jit_float64_t))) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_ldxi_c: case jit_code_ldxi_uc:
case jit_code_ldxi_s: case jit_code_ldxi_us:
case jit_code_ldxi_l:
case jit_code_ldxi_f: case jit_code_ldxi_d:
regno = jit_regno(node->u.w);
- if (simplify_ldxi(prev, node))
+ if (simplify_ldxi(prev, node)) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
case jit_code_stxi_c: case jit_code_stxi_s:
case jit_code_stxi_i: case jit_code_stxi_l:
case jit_code_stxi_f: case jit_code_stxi_d:
regno = jit_regno(node->u.w);
- if (simplify_stxi(prev, node))
+ if (simplify_stxi(prev, node)) {
+ result = 1;
simplify_spill(node = prev, regno);
+ }
break;
default:
info = jit_classify(node->code);
++_jitc->gen[regno];
}
if (info & jit_cc_a2_chg) {
- regno = jit_regno(node->w.w);
- _jitc->values[regno].kind = 0;
- ++_jitc->gen[regno];
+#if 0
+ /* Assume registers are not changed */
+ if (info & jit_cc_a2_rlh) {
+ regno = jit_regno(node->w.q.l);
+ _jitc->values[regno].kind = 0;
+ ++_jitc->gen[regno];
+ regno = jit_regno(node->w.q.h);
+ _jitc->values[regno].kind = 0;
+ ++_jitc->gen[regno];
+ }
+ else {
+#endif
+ regno = jit_regno(node->w.w);
+ _jitc->values[regno].kind = 0;
+ ++_jitc->gen[regno];
+#if 0
+ }
+#endif
}
break;
}
}
+ return (result);
}
static jit_int32_t
default:
value = jit_classify(node->code);
/* lack of extra information */
- if (value & jit_cc_a0_jmp)
+ if (value & (jit_cc_a0_jmp|jit_cc_a0_cnd))
return (jit_reg_change);
else if ((value & (jit_cc_a0_reg|jit_cc_a0_chg)) ==
(jit_cc_a0_reg|jit_cc_a0_chg) &&
}
if ((value & jit_cc_a1_reg) && node->v.w == regno)
node->v.w = patch;
- if ((value & jit_cc_a2_reg) && node->w.w == regno)
- node->w.w = patch;
+ if (value & jit_cc_a2_reg) {
+ if (value & jit_cc_a2_rlh) {
+ if (node->w.q.l == regno)
+ node->w.q.l = patch;
+ if (node->w.q.h == regno)
+ node->w.q.h = patch;
+ }
+ else {
+ if (node->w.w == regno)
+ node->w.w = patch;
+ }
+ }
}
}
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define htonr_us(r0,r1) bswapr_us(r0,r1)
+# define htonr_ui(r0,r1) bswapr_ui(r0,r1)
+# if __WORDSIZE == 64
+# define htonr_ul(r0,r1) bswapr_ul(r0,r1)
+# endif
+#else
+# define htonr_us(r0,r1) extr_us(r0,r1)
+# if __WORDSIZE == 32
+# define htonr_ui(r0,r1) movr(r0,r1)
+# else
+# define htonr_ui(r0,r1) extr_ui(r0,r1)
+# define htonr_ul(r0,r1) movr(r0,r1)
+# endif
+#endif
+
+static maybe_unused void
+generic_bswapr_us(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
+static maybe_unused void
+generic_bswapr_ui(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
+#if __WORDSIZE == 64
+static maybe_unused void
+generic_bswapr_ul(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1);
+#endif
+
+#define patch_alist(revert) _patch_alist(_jit, revert)
+static maybe_unused void _patch_alist(jit_state_t *_jit, jit_bool_t revert);
+
#if defined(__i386__) || defined(__x86_64__)
# include "jit_x86.c"
#elif defined(__mips__)
# include "jit_alpha.c"
#elif defined(__riscv)
# include "jit_riscv.c"
+#elif defined(__loongarch__)
+# include "jit_loongarch.c"
+#endif
+
+static maybe_unused void
+generic_bswapr_us(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
+{
+ jit_int32_t reg = jit_get_reg(jit_class_gpr);
+
+ rshi(rn(reg), r1, 8);
+ andi(r0, r1, 0xff);
+ andi(rn(reg), rn(reg), 0xff);
+ lshi(r0, r0, 8);
+ orr(r0, r0, rn(reg));
+
+ jit_unget_reg(reg);
+}
+
+static maybe_unused void
+generic_bswapr_ui(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
+{
+ jit_int32_t reg = jit_get_reg(jit_class_gpr);
+
+ rshi(rn(reg), r1, 16);
+ bswapr_us(r0, r1);
+ bswapr_us(rn(reg), rn(reg));
+ lshi(r0, r0, 16);
+ orr(r0, r0, rn(reg));
+
+ jit_unget_reg(reg);
+}
+
+#if __WORDSIZE == 64
+static maybe_unused void
+generic_bswapr_ul(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
+{
+ jit_int32_t reg = jit_get_reg(jit_class_gpr);
+
+ rshi_u(rn(reg), r1, 32);
+ bswapr_ui(r0, r1);
+ bswapr_ui(rn(reg), rn(reg));
+ lshi(r0, r0, 32);
+ orr(r0, r0, rn(reg));
+
+ jit_unget_reg(reg);
+}
+#endif
+
+#if defined(stack_framesize)
+static maybe_unused void
+_patch_alist(jit_state_t *_jit, jit_bool_t revert)
+{
+ jit_int32_t diff;
+ jit_node_t *node;
+ diff = jit_diffsize();
+ if (diff) {
+ if (revert)
+ diff = -diff;
+ for (node = _jitc->function->alist; node; node = node->link) {
+ switch (node->code) {
+ case jit_code_ldxi_c: case jit_code_ldxi_uc:
+ case jit_code_ldxi_s: case jit_code_ldxi_us:
+ case jit_code_ldxi_i:
+#if __WORDSIZE == 64
+ case jit_code_ldxi_ui: case jit_code_ldxi_l:
+#endif
+ case jit_code_ldxi_f: case jit_code_ldxi_d:
+ node->w.w -= diff;
+ break;
+ case jit_code_stxi_c: case jit_code_stxi_s:
+ case jit_code_stxi_i:
+#if __WORDSIZE == 64
+ case jit_code_stxi_l:
+#endif
+ case jit_code_stxi_f: case jit_code_stxi_d:
+ node->u.w -= diff;
+ break;
+ default:
+ abort();
+ }
+ }
+ }
+}
#endif
notaz.gp2x.de / pcsx_rearmed.git / blobdiff