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| author | Reid Spencer <rspencer@reidspencer.com> | 2006-12-31 05:48:39 +0000 |
|---|---|---|
| committer | Reid Spencer <rspencer@reidspencer.com> | 2006-12-31 05:48:39 +0000 |
| commit | c635f47d9a02dc7da288864169804d3ff9481e8b (patch) | |
| tree | 4f2083b89373271d840e29c5e22e9020c3be4d90 /llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | be5fd4a771686af882281a392e28b68ef95eeed3 (diff) | |
| download | bcm5719-llvm-c635f47d9a02dc7da288864169804d3ff9481e8b.tar.gz bcm5719-llvm-c635f47d9a02dc7da288864169804d3ff9481e8b.zip | |
For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int -> Int32
4. [U]Long -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
and other methods related to signedness. In a few places this warranted
identifying the signedness information from other sources.
llvm-svn: 32785
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 1908693cc29..3e92a168823 100644 --- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -86,8 +86,8 @@ namespace { Value *IncV; IVExpr() - : Stride(SCEVUnknown::getIntegerSCEV(0, Type::UIntTy)), - Base (SCEVUnknown::getIntegerSCEV(0, Type::UIntTy)) {} + : Stride(SCEVUnknown::getIntegerSCEV(0, Type::Int32Ty)), + Base (SCEVUnknown::getIntegerSCEV(0, Type::Int32Ty)) {} IVExpr(const SCEVHandle &stride, const SCEVHandle &base, PHINode *phi, Value *incv) : Stride(stride), Base(base), PHI(phi), IncV(incv) {} @@ -334,12 +334,6 @@ static bool getSCEVStartAndStride(const SCEVHandle &SH, Loop *L, << "] Variable stride: " << *AddRec << "\n"; Stride = AddRec->getOperand(1); - // Check that all constant strides are the unsigned type, we don't want to - // have two IV's one of signed stride 4 and one of unsigned stride 4 to not be - // merged. - assert((!isa<SCEVConstant>(Stride) || Stride->getType()->isUnsigned()) && - "Constants should be canonicalized to unsigned!"); - return true; } @@ -899,7 +893,7 @@ unsigned LoopStrengthReduce::CheckForIVReuse(const SCEVHandle &Stride, if (unsigned(abs(SInt)) < Scale || (SInt % Scale) != 0) continue; std::map<SCEVHandle, IVsOfOneStride>::iterator SI = - IVsByStride.find(SCEVUnknown::getIntegerSCEV(SInt/Scale, Type::UIntTy)); + IVsByStride.find(SCEVUnknown::getIntegerSCEV(SInt/Scale, Type::Int32Ty)); if (SI == IVsByStride.end()) continue; for (std::vector<IVExpr>::iterator II = SI->second.IVs.begin(), |
