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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 | 90d1be7eefdc98d12ea5ddd13715e2bfc8679351 (patch) | |
| tree | c1bc2f5e74aa64514163a8620c471d71660587b7 | |
| parent | d3948116b81b11e82246c11389a9b4ce7e619fbb (diff) | |
Do not give token factor nodes outrageous weights
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19645 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelPattern.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp index b7c9cfe9f2..a75854e559 100644 --- a/lib/Target/X86/X86ISelPattern.cpp +++ b/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"; |