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Unified Diff: runtime/vm/branch_optimizer.cc

Issue 2463593002: VM: Enable branch merging of isnan, isinf. (Closed)
Patch Set: addressed comments Created 4 years, 1 month ago
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Index: runtime/vm/branch_optimizer.cc
diff --git a/runtime/vm/branch_optimizer.cc b/runtime/vm/branch_optimizer.cc
index b34baf760248eece918d7aca715cdf8d6ec7fa48..4ad12c1a06583fc2a9e6f315d8ca74e6781845f3 100644
--- a/runtime/vm/branch_optimizer.cc
+++ b/runtime/vm/branch_optimizer.cc
@@ -44,6 +44,9 @@ bool BranchSimplifier::Match(JoinEntryInstr* block) {
BranchInstr* branch = block->last_instruction()->AsBranch();
ASSERT(branch != NULL);
ComparisonInstr* comparison = branch->comparison();
+ if (comparison->InputCount() != 2) {
+ return false;
+ }
Value* left = comparison->left();
PhiInstr* phi = left->definition()->AsPhi();
Value* right = comparison->right();
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