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[mips][FastISel] Factor out common code from switch statement. NFC 

llvm-svn: 249603
This commit is contained in:
Vasileios Kalintiris 2015-10-07 20:06:30 +00:00
parent 37bf678a0d
commit b876b58d38
1 changed files with 7 additions and 3 deletions
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10
llvm/lib/Target/Mips/MipsFastISel.cpp
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@ -1604,19 +1604,23 @@ bool MipsFastISel::emitIntSExt(MVT SrcVT, unsigned SrcReg, MVT DestVT,
bool MipsFastISel::emitIntZExt(MVT SrcVT, unsigned SrcReg, MVT DestVT,
unsigned DestReg) {
int64_t Imm;
switch (SrcVT.SimpleTy) {
default:
return false;
case MVT::i1:
emitInst(Mips::ANDi, DestReg).addReg(SrcReg).addImm(1);
Imm = 1;
break;
case MVT::i8:
emitInst(Mips::ANDi, DestReg).addReg(SrcReg).addImm(0xff);
Imm = 0xff;
break;
case MVT::i16:
emitInst(Mips::ANDi, DestReg).addReg(SrcReg).addImm(0xffff);
Imm = 0xffff;
break;
}
emitInst(Mips::ANDi, DestReg).addReg(SrcReg).addImm(Imm);
return true;
}