mirrors/php-src
0
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2024-11-24 18:34:21 +08:00
Code Issues Packages Projects Releases Wiki Activity

Eliminate deafd stores

Browse Source
This commit is contained in:
Dmitry Stogov 2020-11-26 21:05:07 +03:00
parent 6132389d1c
commit 3697648be5
1 changed files with 28 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
ext/opcache/jit/zend_jit_trace.c
View File

@ -5687,8 +5687,23 @@ done:
if (type != IS_UNKNOWN) {
ssa->var_info[ssa_op->op1_def].type &= ~MAY_BE_GUARD;
if (ra && ra[ssa_op->op1_def]) {
SET_STACK_REG_EX(stack, EX_VAR_TO_NUM(opline->op1.var), ra[ssa_op->op1_def]->reg,
ra[ssa_op->op1_def]->flags & ZREG_STORE);
uint8_t flags = ra[ssa_op->op1_def]->flags & ZREG_STORE;
if (ssa_op->op1_use >= 0) {
if (opline->opcode == ZEND_SEND_VAR
|| opline->opcode == ZEND_CAST
|| opline->opcode == ZEND_QM_ASSIGN
|| opline->opcode == ZEND_JMP_SET
|| opline->opcode == ZEND_COALESCE
|| opline->opcode == ZEND_JMP_NULL
|| opline->opcode == ZEND_FE_RESET_R) {
if (!ra[ssa_op->op1_use]
|| ra[ssa_op->op1_use]->reg != ra[ssa_op->op1_def]->reg) {
flags |= ZREG_LOAD;
}
}
}
SET_STACK_REG_EX(stack, EX_VAR_TO_NUM(opline->op1.var), ra[ssa_op->op1_def]->reg, flags);
}
}
if (type == IS_LONG
@ -5715,8 +5730,17 @@ done:
if (type != IS_UNKNOWN) {
ssa->var_info[ssa_op->op2_def].type &= ~MAY_BE_GUARD;
if (ra && ra[ssa_op->op2_def]) {
SET_STACK_REG_EX(stack, EX_VAR_TO_NUM(opline->op2.var), ra[ssa_op->op2_def]->reg,
ra[ssa_op->op2_def]->flags & ZREG_STORE);
uint8_t flags = ra[ssa_op->op2_def]->flags & ZREG_STORE;
if (ssa_op->op2_use >= 0) {
if (opline->opcode == ZEND_ASSIGN) {
if (!ra[ssa_op->op2_use]
|| ra[ssa_op->op2_use]->reg != ra[ssa_op->op2_def]->reg) {
flags |= ZREG_LOAD;
}
}
}
SET_STACK_REG_EX(stack, EX_VAR_TO_NUM(opline->op2.var), ra[ssa_op->op2_def]->reg, flags);
}
}
if (type == IS_LONG