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author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-12-19 14:37:03 +0000 |
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committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-12-19 14:37:03 +0000 |
commit | de011a5f90c8c9ac1557043e59af179f14c15825 (patch) | |
tree | fb7623949d51adfb2dbfdc1d02216cca359e8223 | |
parent | a7eb2b83ba102aed25fd7d0d09ae90f2fff458a1 (diff) | |
download | llvm-de011a5f90c8c9ac1557043e59af179f14c15825.tar.gz llvm-de011a5f90c8c9ac1557043e59af179f14c15825.tar.bz2 llvm-de011a5f90c8c9ac1557043e59af179f14c15825.tar.xz |
[dfsan] Simplify code after r197677.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197679 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Transforms/Instrumentation/DataFlowSanitizer.cpp | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp b/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp index 653ad7ff84..bc089ec093 100644 --- a/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp +++ b/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp @@ -837,25 +837,20 @@ Value *DataFlowSanitizer::combineShadows(Value *V1, Value *V2, IRBuilder<> IRB(Pos); BasicBlock *Head = Pos->getParent(); Value *Ne = IRB.CreateICmpNE(V1, V2); - if (Ne) { - BranchInst *BI = cast<BranchInst>(SplitBlockAndInsertIfThen( - Ne, Pos, /*Unreachable=*/false, ColdCallWeights)); - IRBuilder<> ThenIRB(BI); - CallInst *Call = ThenIRB.CreateCall2(DFSanUnionFn, V1, V2); - Call->addAttribute(AttributeSet::ReturnIndex, Attribute::ZExt); - Call->addAttribute(1, Attribute::ZExt); - Call->addAttribute(2, Attribute::ZExt); - - BasicBlock *Tail = BI->getSuccessor(0); - PHINode *Phi = PHINode::Create(ShadowTy, 2, "", Tail->begin()); - Phi->addIncoming(Call, Call->getParent()); - Phi->addIncoming(V1, Head); - Pos = Phi; - return Phi; - } else { - assert(0 && "todo"); - return 0; - } + BranchInst *BI = cast<BranchInst>(SplitBlockAndInsertIfThen( + Ne, Pos, /*Unreachable=*/false, ColdCallWeights)); + IRBuilder<> ThenIRB(BI); + CallInst *Call = ThenIRB.CreateCall2(DFSanUnionFn, V1, V2); + Call->addAttribute(AttributeSet::ReturnIndex, Attribute::ZExt); + Call->addAttribute(1, Attribute::ZExt); + Call->addAttribute(2, Attribute::ZExt); + + BasicBlock *Tail = BI->getSuccessor(0); + PHINode *Phi = PHINode::Create(ShadowTy, 2, "", Tail->begin()); + Phi->addIncoming(Call, Call->getParent()); + Phi->addIncoming(V1, Head); + Pos = Phi; + return Phi; } // A convenience function which folds the shadows of each of the operands |