diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/EarlyCSE.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/EarlyCSE.cpp b/lib/Transforms/Scalar/EarlyCSE.cpp index 6c2ea39896..3d3f17b26f 100644 --- a/lib/Transforms/Scalar/EarlyCSE.cpp +++ b/lib/Transforms/Scalar/EarlyCSE.cpp @@ -56,6 +56,9 @@ namespace { } static bool canHandle(Instruction *Inst) { + // This can only handle non-void readnone functions. + if (CallInst *CI = dyn_cast<CallInst>(Inst)) + return CI->doesNotAccessMemory() && !CI->getType()->isVoidTy(); return isa<CastInst>(Inst) || isa<BinaryOperator>(Inst) || isa<GetElementPtrInst>(Inst) || isa<CmpInst>(Inst) || isa<SelectInst>(Inst) || isa<ExtractElementInst>(Inst) || @@ -105,7 +108,8 @@ unsigned DenseMapInfo<SimpleValue>::getHashValue(SimpleValue Val) { Res ^= *I; } else { // nothing extra to hash in. - assert((isa<BinaryOperator>(Inst) || isa<GetElementPtrInst>(Inst) || + assert((isa<CallInst>(Inst) || + isa<BinaryOperator>(Inst) || isa<GetElementPtrInst>(Inst) || isa<SelectInst>(Inst) || isa<ExtractElementInst>(Inst) || isa<InsertElementInst>(Inst) || isa<ShuffleVectorInst>(Inst)) && "Invalid/unknown instruction"); |