diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index adfa5272a9..834a95d731 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -2005,11 +2005,16 @@ ICmpInst *LoopStrengthReduce::ChangeCompareStride(Loop *L, ICmpInst *Cond, ConstantInt *CI = ConstantInt::get(NewCmpIntTy, NewCmpVal); NewCmpRHS = ConstantExpr::getIntToPtr(CI, NewCmpTy); } + NewOffset = CondUse->getOffset(); + if (CondUse->isSigned()) + NewOffset = SE->getNoopOrSignExtend(CondUse->getOffset(), NewCmpTy); + else + NewOffset = SE->getNoopOrZeroExtend(CondUse->getOffset(), NewCmpTy); NewOffset = TyBits == NewTyBits - ? SE->getMulExpr(CondUse->getOffset(), + ? SE->getMulExpr(NewOffset, SE->getConstant(ConstantInt::get(CmpTy, Scale))) : SE->getConstant(ConstantInt::get(NewCmpIntTy, - cast<SCEVConstant>(CondUse->getOffset())->getValue() + cast<SCEVConstant>(NewOffset)->getValue() ->getSExtValue()*Scale)); break; } |