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Implement MSP430RegisterInfo::getMatchingSuperRegClass to enable cross-class

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coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-05-04 01:01:36 +00:00
parent b65122c873
commit b89383aeff
1 changed files with 7 additions and 0 deletions
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7
lib/Target/MSP430/MSP430RegisterInfo.h
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@ -39,6 +39,13 @@ public:
BitVector getReservedRegs(const MachineFunction &MF) const;
const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
const TargetRegisterClass *
getMatchingSuperRegClass(const TargetRegisterClass *A,
const TargetRegisterClass *B, unsigned Idx) const {
// No sub-classes makes this really easy.
return A;
}
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;