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Make constant and copy propagation only for IS_TMP_VAR operands

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This commit is contained in:
Dmitry Stogov 2019-09-13 12:38:57 +03:00
parent e45a757bc2
commit af9b127fed
1 changed files with 3 additions and 3 deletions
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6
ext/opcache/Optimizer/block_pass.c
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@ -181,7 +181,7 @@ static void zend_optimize_block(zend_basic_block *block, zend_op_array *op_array
end = opline + block->len;
while (opline < end) {
/* Constant Propagation: strip X = QM_ASSIGN(const) */
if ((opline->op1_type & (IS_TMP_VAR|IS_VAR)) &&
if (opline->op1_type == IS_TMP_VAR &&
opline->opcode != ZEND_FREE) {
src = VAR_SOURCE(opline->op1);
if (src &&
@ -257,7 +257,7 @@ static void zend_optimize_block(zend_basic_block *block, zend_op_array *op_array
}
/* Constant Propagation: strip X = QM_ASSIGN(const) */
if (opline->op2_type & (IS_TMP_VAR|IS_VAR)) {
if (opline->op2_type == IS_TMP_VAR) {
src = VAR_SOURCE(opline->op2);
if (src &&
src->opcode == ZEND_QM_ASSIGN &&
@ -860,7 +860,7 @@ optimize_const_unary_op:
case ZEND_RETURN:
case ZEND_EXIT:
if (opline->op1_type & (IS_TMP_VAR|IS_VAR)) {
if (opline->op1_type == IS_TMP_VAR) {
src = VAR_SOURCE(opline->op1);
if (src && src->opcode == ZEND_QM_ASSIGN) {
zend_op *op = src + 1;