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| author | Chris Lattner <sabre@nondot.org> | 2005-01-17 22:56:09 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-01-17 22:56:09 +0000 |
| commit | ca318edb94524b809d390e9880800a8c4f556354 (patch) | |
| tree | a385524e3e1c2c25be2efb597674e139d02987f4 /llvm/lib | |
| parent | 4d9651c76056989afffc8d6b6501211e1bfbb556 (diff) | |
| download | bcm5719-llvm-ca318edb94524b809d390e9880800a8c4f556354.tar.gz bcm5719-llvm-ca318edb94524b809d390e9880800a8c4f556354.zip | |
Do not give token factor nodes outrageous weights
llvm-svn: 19645
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelPattern.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelPattern.cpp b/llvm/lib/Target/X86/X86ISelPattern.cpp index b7c9cfe9f2c..a75854e5592 100644 --- a/llvm/lib/Target/X86/X86ISelPattern.cpp +++ b/llvm/lib/Target/X86/X86ISelPattern.cpp @@ -453,8 +453,11 @@ unsigned ISel::ComputeRegPressure(SDOperand O) { ++NumExtraMaxRegUsers; } } - - Result = MaxRegUse+NumExtraMaxRegUsers; + + if (O.getOpcode() != ISD::TokenFactor) + Result = MaxRegUse+NumExtraMaxRegUsers; + else + Result = std::max(MaxRegUse-1, 1); } //std::cerr << " WEIGHT: " << Result << " "; N->dump(); std::cerr << "\n"; |
