Commit bd03455c authored by palfia@homejinni.com's avatar palfia@homejinni.com

MIPS: Fix bugs in IfBuilder and improve functionality

Port r14327 (21310b91)

BUG=

Review URL: https://codereview.chromium.org/14246017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
parent 80adb589
...@@ -823,12 +823,16 @@ void LChunkBuilder::DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block) { ...@@ -823,12 +823,16 @@ void LChunkBuilder::DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block) {
HEnvironment* last_environment = pred->last_environment(); HEnvironment* last_environment = pred->last_environment();
for (int i = 0; i < block->phis()->length(); ++i) { for (int i = 0; i < block->phis()->length(); ++i) {
HPhi* phi = block->phis()->at(i); HPhi* phi = block->phis()->at(i);
if (phi->merged_index() < last_environment->length()) {
last_environment->SetValueAt(phi->merged_index(), phi); last_environment->SetValueAt(phi->merged_index(), phi);
} }
}
for (int i = 0; i < block->deleted_phis()->length(); ++i) { for (int i = 0; i < block->deleted_phis()->length(); ++i) {
if (block->deleted_phis()->at(i) < last_environment->length()) {
last_environment->SetValueAt(block->deleted_phis()->at(i), last_environment->SetValueAt(block->deleted_phis()->at(i),
graph_->GetConstantUndefined()); graph_->GetConstantUndefined());
} }
}
block->UpdateEnvironment(last_environment); block->UpdateEnvironment(last_environment);
// Pick up the outgoing argument count of one of the predecessors. // Pick up the outgoing argument count of one of the predecessors.
argument_count_ = pred->argument_count(); argument_count_ = pred->argument_count();
......
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