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| author | Nadav Rotem <nrotem@apple.com> | 2013-01-04 17:48:25 +0000 |
|---|---|---|
| committer | Nadav Rotem <nrotem@apple.com> | 2013-01-04 17:48:25 +0000 |
| commit | e503319874f57ab4a0354521b03a71cf8e07b866 (patch) | |
| tree | 6d6b818c02185f5523b3cde95373bb1beb36432a /lib/Target/X86/X86ISelLowering.h | |
| parent | e12bf1875481b02d07b6ce9c153ec3410068e234 (diff) | |
| download | external_llvm-e503319874f57ab4a0354521b03a71cf8e07b866.zip external_llvm-e503319874f57ab4a0354521b03a71cf8e07b866.tar.gz external_llvm-e503319874f57ab4a0354521b03a71cf8e07b866.tar.bz2 | |
LoopVectorizer:
1. Add code to estimate register pressure.
2. Add code to select the unroll factor based on register pressure.
3. Add bits to TargetTransformInfo to provide the number of registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171469 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.h')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h index 2e2fc2a..86b7764 100644 --- a/lib/Target/X86/X86ISelLowering.h +++ b/lib/Target/X86/X86ISelLowering.h @@ -959,6 +959,8 @@ namespace llvm { explicit X86VectorTargetTransformInfo(const TargetLowering *TL) : VectorTargetTransformImpl(TL) {} + virtual unsigned getNumberOfRegisters(bool Vector) const; + virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const; virtual unsigned getMemoryOpCost(unsigned Opcode, Type *Src, |