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[AArch64][GlobalISel] Use the generic DefaultMapping as the default. 

This lets generic logic handle the common case, instead of having to
implement applyMappingImpl for each instruction.

llvm-svn: 281720
This commit is contained in:
Ahmed Bougacha 2016-09-16 12:33:34 +00:00
parent 23385c87a4
commit b532360dd6
1 changed files with 1 additions and 2 deletions
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3
llvm/lib/Target/AArch64/AArch64RegisterBankInfo.cpp
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@ -157,7 +157,6 @@ AArch64RegisterBankInfo::getInstrAlternativeMappings(
void AArch64RegisterBankInfo::applyMappingImpl(
const OperandsMapper &OpdMapper) const {
switch (OpdMapper.getMI().getOpcode()) {
case TargetOpcode::G_ADD:
case TargetOpcode::G_OR: {
// Those ID must match getInstrAlternativeMappings.
assert((OpdMapper.getInstrMapping().getID() == 1 ||
@ -187,7 +186,7 @@ AArch64RegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
else
BankID = AArch64::GPRRegBankID;
Mapping = InstructionMapping{1, 1, MI.getNumOperands()};
Mapping = InstructionMapping{DefaultMappingID, 1, MI.getNumOperands()};
int Size = Ty.isValid() ? Ty.getSizeInBits() : 0;
for (unsigned Idx = 0; Idx < MI.getNumOperands(); ++Idx)
Mapping.setOperandMapping(Idx, Size, getRegBank(BankID));