Revision: 9642
Author: [email protected]
Date: Mon Oct 17 00:52:20 2011
Log: Speedup HInstruction::Verify() for pathological cases
BUG=v8:1767
TEST=mjsunit/numops-fuzz doesn't timeout in debug mode
Review URL: http://codereview.chromium.org/8302023
http://code.google.com/p/v8/source/detail?r=9642
Modified:
/branches/bleeding_edge/src/hydrogen-instructions.cc
=======================================
--- /branches/bleeding_edge/src/hydrogen-instructions.cc Fri Oct 14
06:16:23 2011
+++ /branches/bleeding_edge/src/hydrogen-instructions.cc Mon Oct 17
00:52:20 2011
@@ -587,11 +587,10 @@
HBasicBlock* other_block = other_operand->block();
if (cur_block == other_block) {
if (!other_operand->IsPhi()) {
- HInstruction* cur = cur_block->first();
+ HInstruction* cur = this->previous();
while (cur != NULL) {
- ASSERT(cur != this); // We should reach other_operand before!
if (cur == other_operand) break;
- cur = cur->next();
+ cur = cur->previous();
}
// Must reach other operand in the same block!
ASSERT(cur == other_operand);
--
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