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Removed useless variable

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This commit is contained in:
Dmitry Stogov
2020-03-27 12:24:15 +03:00
parent b0b593504d
commit 150df5b17c
1 changed files with 10 additions and 12 deletions
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22
ext/opcache/jit/zend_jit.c
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@@ -1221,11 +1221,10 @@ static int zend_jit_compute_liveness(const zend_op_array *op_array, zend_ssa *ss
/* Register hinting (a cheap way for register coalescing) */
for (i = 0; i < ssa->vars_count; i++) {
if (intervals[i]) {
int var = intervals[i]->ssa_var;
int src;
if (ssa->vars[var].definition_phi) {
zend_ssa_phi *phi = ssa->vars[var].definition_phi;
if (ssa->vars[i].definition_phi) {
zend_ssa_phi *phi = ssa->vars[i].definition_phi;
if (phi->pi >= 0) {
src = phi->sources[0];
@@ -1253,10 +1252,9 @@ static int zend_jit_compute_liveness(const zend_op_array *op_array, zend_ssa *ss
}
for (i = 0; i < ssa->vars_count; i++) {
if (intervals[i] && !intervals[i]->hint) {
int var = intervals[i]->ssa_var;
if (ssa->vars[var].definition >= 0) {
uint32_t line = ssa->vars[var].definition;
if (ssa->vars[i].definition >= 0) {
uint32_t line = ssa->vars[i].definition;
const zend_op *opline = op_array->opcodes + line;
switch (opline->opcode) {
@@ -1265,8 +1263,8 @@ static int zend_jit_compute_liveness(const zend_op_array *op_array, zend_ssa *ss
case ZEND_POST_DEC:
if (ssa->ops[line].op1_use >= 0 &&
intervals[ssa->ops[line].op1_use] &&
(var == ssa->ops[line].op1_def ||
(var == ssa->ops[line].result_def &&
(i == ssa->ops[line].op1_def ||
(i == ssa->ops[line].result_def &&
(ssa->ops[line].op1_def < 0 ||
!intervals[ssa->ops[line].op1_def])))) {
zend_jit_add_hint(intervals, i, ssa->ops[line].op1_use);
@@ -1275,7 +1273,7 @@ static int zend_jit_compute_liveness(const zend_op_array *op_array, zend_ssa *ss
case ZEND_SEND_VAR:
case ZEND_PRE_INC:
case ZEND_PRE_DEC:
if (var == ssa->ops[line].op1_def &&
if (i == ssa->ops[line].op1_def &&
ssa->ops[line].op1_use >= 0 &&
intervals[ssa->ops[line].op1_use]) {
zend_jit_add_hint(intervals, i, ssa->ops[line].op1_use);
@@ -1284,11 +1282,11 @@ static int zend_jit_compute_liveness(const zend_op_array *op_array, zend_ssa *ss
case ZEND_ASSIGN:
if (ssa->ops[line].op2_use >= 0 &&
intervals[ssa->ops[line].op2_use] &&
(var == ssa->ops[line].op2_def ||
(var == ssa->ops[line].op1_def &&
(i == ssa->ops[line].op2_def ||
(i == ssa->ops[line].op1_def &&
(ssa->ops[line].op2_def < 0 ||
!intervals[ssa->ops[line].op2_def])) ||
(var == ssa->ops[line].result_def &&
(i == ssa->ops[line].result_def &&
(ssa->ops[line].op2_def < 0 ||
!intervals[ssa->ops[line].op2_def]) &&
(ssa->ops[line].op1_def < 0 ||