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| author | Anna Thomas <anna@azul.com> | 2017-06-06 16:45:25 +0000 |
|---|---|---|
| committer | Anna Thomas <anna@azul.com> | 2017-06-06 16:45:25 +0000 |
| commit | b2a212c070d9eaf84bc2310f19ffbb08da9d59ab (patch) | |
| tree | 5c781c62cff63f821d610df632599427cf202ce0 /llvm/lib/Target/X86/X86TargetTransformInfo.cpp | |
| parent | e4cda7417cdb8465111ea057ce4faff72043702a (diff) | |
| download | bcm5719-llvm-b2a212c070d9eaf84bc2310f19ffbb08da9d59ab.tar.gz bcm5719-llvm-b2a212c070d9eaf84bc2310f19ffbb08da9d59ab.zip | |
[Atomics][LoopIdiom] Recognize unordered atomic memcpy
Summary:
Expanding the loop idiom test for memcpy to also recognize
unordered atomic memcpy. The only difference for recognizing
an unordered atomic memcpy and instead of a normal memcpy is
that the loads and/or stores involved are unordered atomic operations.
Background: http://lists.llvm.org/pipermail/llvm-dev/2017-May/112779.html
Patch by Daniel Neilson!
Reviewers: reames, anna, skatkov
Reviewed By: reames, anna
Subscribers: llvm-commits, mzolotukhin
Differential Revision: https://reviews.llvm.org/D33243
llvm-svn: 304806
Diffstat (limited to 'llvm/lib/Target/X86/X86TargetTransformInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index fe94079fd86..1d58cccc308 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -1383,6 +1383,8 @@ int X86TTIImpl::getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy, return BaseT::getCmpSelInstrCost(Opcode, ValTy, CondTy, I); } +unsigned X86TTIImpl::getAtomicMemIntrinsicMaxElementSize() const { return 16; } + int X86TTIImpl::getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy, ArrayRef<Type *> Tys, FastMathFlags FMF, unsigned ScalarizationCostPassed) { |
