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| author | Peter Collingbourne <peter@pcc.me.uk> | 2011-04-29 18:47:25 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2011-04-29 18:47:25 +0000 |
| commit | 8a70192b510e2a0f05493b9212e998017f3d178d (patch) | |
| tree | 51617ac863e94c5d1b82f54b32f80c90ad714f75 /lib/Transforms/Utils/SimplifyCFG.cpp | |
| parent | c8497b6a2565046b5e6b5f2ea9dedc62b53dd966 (diff) | |
SimplifyCFG: Add Trunc, ZExt and SExt to the list of cheap instructions for phi node folding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130526 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/SimplifyCFG.cpp')
| -rw-r--r-- | lib/Transforms/Utils/SimplifyCFG.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp index 5177d33959..1bddecb8c4 100644 --- a/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/lib/Transforms/Utils/SimplifyCFG.cpp @@ -261,6 +261,9 @@ static bool DominatesMergePoint(Value *V, BasicBlock *BB, case Instruction::LShr: case Instruction::AShr: case Instruction::ICmp: + case Instruction::Trunc: + case Instruction::ZExt: + case Instruction::SExt: break; // These are all cheap and non-trapping instructions. } |