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| author | Dan Gohman <gohman@apple.com> | 2008-06-30 20:25:31 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-06-30 20:25:31 +0000 |
| commit | 117b64b3f8277e8882d711ea859bed380a3e6f14 (patch) | |
| tree | 3b551327821da9d2abf822966738361327a5f500 | |
| parent | ebd69421a2acf0c64f368de87d0795451060ed34 (diff) | |
| download | external_llvm-117b64b3f8277e8882d711ea859bed380a3e6f14.zip external_llvm-117b64b3f8277e8882d711ea859bed380a3e6f14.tar.gz external_llvm-117b64b3f8277e8882d711ea859bed380a3e6f14.tar.bz2 | |
Correct the allocation size for CCState's UsedRegs member, which
only needs one bit for each register. UsedRegs is a SmallVector
sized at 16, so this eliminates a heap allocation/free for every
call and return processed by Legalize on most targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52915 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/CallingConvLower.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/CallingConvLower.cpp b/lib/CodeGen/SelectionDAG/CallingConvLower.cpp index 5dcf4ac..c9832ac 100644 --- a/lib/CodeGen/SelectionDAG/CallingConvLower.cpp +++ b/lib/CodeGen/SelectionDAG/CallingConvLower.cpp @@ -26,7 +26,7 @@ CCState::CCState(unsigned CC, bool isVarArg, const TargetMachine &tm, // No stack is used. StackOffset = 0; - UsedRegs.resize(TRI.getNumRegs()); + UsedRegs.resize((TRI.getNumRegs()+31)/32); } // HandleByVal - Allocate a stack slot large enough to pass an argument by |