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Fixed SSA reconstruction

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This commit is contained in:
Dmitry Stogov
2017-07-05 20:37:21 +03:00
parent 37ec4e0845
commit 7084fade4d
2 changed files with 10 additions and 2 deletions
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6
ext/opcache/Optimizer/sccp.c
View File

@@ -1203,7 +1203,11 @@ static void replace_constant_operands(sccp_ctx *ctx) {
zend_ssa_op *ssa_op = &ssa->ops[use];
if (try_replace_op1(ctx, opline, ssa_op, i, value)) {
ZEND_ASSERT(ssa_op->op1_def == -1);
zend_ssa_unlink_use_chain(ssa, use, ssa_op->op1_use);
if (ssa_op->op1_use != ssa_op->op2_use) {
zend_ssa_unlink_use_chain(ssa, use, ssa_op->op1_use);
} else {
ssa_op->op2_use_chain = ssa_op->op1_use_chain;
}
ssa_op->op1_use = -1;
ssa_op->op1_use_chain = -1;
}

6
ext/opcache/Optimizer/zend_ssa.c
View File

@@ -1170,7 +1170,11 @@ void zend_ssa_remove_instr(zend_ssa *ssa, zend_op *opline, zend_ssa_op *ssa_op)
ssa_op->res_use_chain = -1;
}
if (ssa_op->op1_use >= 0) {
zend_ssa_unlink_use_chain(ssa, ssa_op - ssa->ops, ssa_op->op1_use);
if (ssa_op->op1_use != ssa_op->op2_use) {
zend_ssa_unlink_use_chain(ssa, ssa_op - ssa->ops, ssa_op->op1_use);
} else {
ssa_op->op2_use_chain = ssa_op->op1_use_chain;
}
ssa_op->op1_use = -1;
ssa_op->op1_use_chain = -1;
}