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| author | Dale Johannesen <dalej@apple.com> | 2009-04-27 21:03:15 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2009-04-27 21:03:15 +0000 |
| commit | 6cb3e2659698fcc883c437d912f2e29dbd3c9041 (patch) | |
| tree | 621e829cbbf7509d9e627df3dea446d2a5254d12 /lib | |
| parent | 3be003c0423fc3a064d43891d7221b461fc205f0 (diff) | |
| download | external_llvm-6cb3e2659698fcc883c437d912f2e29dbd3c9041.zip external_llvm-6cb3e2659698fcc883c437d912f2e29dbd3c9041.tar.gz external_llvm-6cb3e2659698fcc883c437d912f2e29dbd3c9041.tar.bz2 | |
Fix PR 4086, a bug in FP IV elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70247 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/IndVarSimplify.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/IndVarSimplify.cpp b/lib/Transforms/Scalar/IndVarSimplify.cpp index cc3919d..141b118 100644 --- a/lib/Transforms/Scalar/IndVarSimplify.cpp +++ b/lib/Transforms/Scalar/IndVarSimplify.cpp @@ -1037,9 +1037,11 @@ void IndVarSimplify::HandleFloatingPointIV(Loop *L, PHINode *PH, Incr->getName()+".int", Incr); NewPHI->addIncoming(NewAdd, PH->getIncomingBlock(BackEdge)); + // The back edge is edge 1 of newPHI, whatever it may have been in the + // original PHI. ConstantInt *NewEV = ConstantInt::get(Type::Int32Ty, intEV); - Value *LHS = (EVIndex == 1 ? NewPHI->getIncomingValue(BackEdge) : NewEV); - Value *RHS = (EVIndex == 1 ? NewEV : NewPHI->getIncomingValue(BackEdge)); + Value *LHS = (EVIndex == 1 ? NewPHI->getIncomingValue(1) : NewEV); + Value *RHS = (EVIndex == 1 ? NewEV : NewPHI->getIncomingValue(1)); ICmpInst *NewEC = new ICmpInst(NewPred, LHS, RHS, EC->getNameStart(), EC->getParent()->getTerminator()); |