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| author | Justin Lebar <jlebar@google.com> | 2016-04-15 01:38:50 +0000 |
|---|---|---|
| committer | Justin Lebar <jlebar@google.com> | 2016-04-15 01:38:50 +0000 |
| commit | cd5fbea67e76711bf03b7b6d0afae165a04ded4d (patch) | |
| tree | ed5860a849cfff5727e739287097a6e7973de64e | |
| parent | 8650a4da93344eb7ed2342a46b2808f44f206507 (diff) | |
| download | bcm5719-llvm-cd5fbea67e76711bf03b7b6d0afae165a04ded4d.tar.gz bcm5719-llvm-cd5fbea67e76711bf03b7b6d0afae165a04ded4d.zip | |
[NVPTX] Set NVPTXTTI::getInliningThresholdMultiplier to 5.
Summary:
Calls on NVPTX are unusually expensive (for one thing, lots of state
needs to be saved to memory, which is slow), so make the inlininer much
more aggressive.
Reviewers: chandlerc
Subscribers: jholewinski, llvm-commits, tra
Differential Revision: http://reviews.llvm.org/D18561
llvm-svn: 266406
| -rw-r--r-- | llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h b/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h index 0946a3293ee..08ffdf19115 100644 --- a/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h +++ b/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.h @@ -52,6 +52,10 @@ public: bool isSourceOfDivergence(const Value *V); + // Increase the inlining cost threshold by a factor of 5, reflecting that + // calls are particularly expensive in NVPTX. + unsigned getInliningThresholdMultiplier() { return 5; } + int getArithmeticInstrCost( unsigned Opcode, Type *Ty, TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, |
