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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-10-02 09:12:55 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-10-02 09:12:55 +0000 |
| commit | 40a34dd9a3a66b7e05d7616496a7744c615e8f9a (patch) | |
| tree | 9deea55347a57389af24e82682f279d08720eb45 /llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | |
| parent | a884013eaac3092348c3a3b5878d03d226a9b036 (diff) | |
| download | bcm5719-llvm-40a34dd9a3a66b7e05d7616496a7744c615e8f9a.tar.gz bcm5719-llvm-40a34dd9a3a66b7e05d7616496a7744c615e8f9a.zip | |
Enhance a couple places where we were doing constant folding of instructions,
but not load instructions. Noticed by inspection.
llvm-svn: 140966
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp index ffca57b7735..ae42d526ae7 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp @@ -324,9 +324,14 @@ static Value *SimplifyWithOpReplaced(Value *V, Value *Op, Value *RepOp, } // All operands were constants, fold it. - if (ConstOps.size() == I->getNumOperands()) + if (ConstOps.size() == I->getNumOperands()) { + if (LoadInst *LI = dyn_cast<LoadInst>(I)) + if (!LI->isVolatile()) + return ConstantFoldLoadFromConstPtr(ConstOps[0], TD); + return ConstantFoldInstOperands(I->getOpcode(), I->getType(), ConstOps, TD); + } } return 0; |
