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-rw-r--r--lib/Transforms/Utils/SimplifyCFG.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index fb660db..c670885 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -247,6 +247,11 @@ static bool DominatesMergePoint(Value *V, BasicBlock *BB,
if (PBB->getFirstNonPHIOrDbg() != I)
return false;
break;
+ case Instruction::GetElementPtr:
+ // GEPs are cheap if all indices are constant.
+ if (!cast<GetElementPtrInst>(I)->hasAllConstantIndices())
+ return false;
+ break;
case Instruction::Add:
case Instruction::Sub:
case Instruction::And:
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