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Reduce malloc thrashing.

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llvm-svn: 117572
This commit is contained in:
Benjamin Kramer 2010-10-28 18:41:23 +00:00
parent d02c1c7d77
commit fbfb8cf5f8
1 changed files with 1 additions and 1 deletions
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2
lib/Target/TargetRegisterInfo.cpp
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@ -82,7 +82,7 @@ BitVector TargetRegisterInfo::getAllocatableSet(const MachineFunction &MF,
// Mask out the reserved registers
BitVector Reserved = getReservedRegs(MF);
Allocatable ^= Reserved & Allocatable;
Allocatable &= Reserved.flip();
return Allocatable;
}