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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 | 267236ade35200fec4bea0985d7523dacfdb457d (patch) | |
| tree | c7a89031eece86ef02dfd4bed732c571dd7ac416 /lib/Transforms/InstCombine/InstCombineSelect.cpp | |
| parent | 42fbe9aa06d8a06db353479edb18ff3d4543147c (diff) | |
| download | llvm-267236ade35200fec4bea0985d7523dacfdb457d.tar.gz llvm-267236ade35200fec4bea0985d7523dacfdb457d.tar.bz2 llvm-267236ade35200fec4bea0985d7523dacfdb457d.tar.xz | |
Enhance a couple places where we were doing constant folding of instructions,
but not load instructions. Noticed by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140966 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineSelect.cpp')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineSelect.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineSelect.cpp b/lib/Transforms/InstCombine/InstCombineSelect.cpp index ffca57b773..ae42d526ae 100644 --- a/lib/Transforms/InstCombine/InstCombineSelect.cpp +++ b/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; |