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author | Alexey Bataev <a.bataev@hotmail.com> | 2017-09-08 13:49:36 +0000 |
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committer | Alexey Bataev <a.bataev@hotmail.com> | 2017-09-08 13:49:36 +0000 |
commit | 4fcc7e8528d8d6020a5299c9e7eccaa565413c9e (patch) | |
tree | 4012f4f1e8051afee7c0f114c0736faff44a5bcd /lib/Analysis/TargetTransformInfo.cpp | |
parent | 977c908e78cb2aa2ec8a9077602bf25d497712cc (diff) |
[SLP] Support for horizontal min/max reduction.
SLP vectorizer supports horizontal reductions for Add/FAdd binary
operations. Patch adds support for horizontal min/max reductions.
Function getReductionCost() is split to getArithmeticReductionCost() for
binary operation reductions and getMinMaxReductionCost() for min/max
reductions.
Patch fixes PR26956.
Differential revision: https://reviews.llvm.org/D27846
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312791 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/TargetTransformInfo.cpp')
-rw-r--r-- | lib/Analysis/TargetTransformInfo.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Analysis/TargetTransformInfo.cpp b/lib/Analysis/TargetTransformInfo.cpp index e09138168c9..8673b1b55d9 100644 --- a/lib/Analysis/TargetTransformInfo.cpp +++ b/lib/Analysis/TargetTransformInfo.cpp @@ -484,6 +484,15 @@ int TargetTransformInfo::getArithmeticReductionCost(unsigned Opcode, Type *Ty, return Cost; } +int TargetTransformInfo::getMinMaxReductionCost(Type *Ty, Type *CondTy, + bool IsPairwiseForm, + bool IsUnsigned) const { + int Cost = + TTIImpl->getMinMaxReductionCost(Ty, CondTy, IsPairwiseForm, IsUnsigned); + assert(Cost >= 0 && "TTI should not produce negative costs!"); + return Cost; +} + unsigned TargetTransformInfo::getCostOfKeepingLiveOverCall(ArrayRef<Type *> Tys) const { return TTIImpl->getCostOfKeepingLiveOverCall(Tys); |