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Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55482 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2008-08-28 18:26:01 +00:00
parent b5dbcb538b
commit c0bb68b982
1 changed files with 4 additions and 1 deletions
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5
lib/CodeGen/SelectionDAG/FastISel.cpp
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@ -366,6 +366,9 @@ FastISel::SelectInstructions(BasicBlock::iterator Begin,
case Instruction::SExt:
if (!SelectCast(I, ISD::SIGN_EXTEND, ValueMap)) return I;
break;
case Instruction::Trunc:
if (!SelectCast(I, ISD::TRUNCATE, ValueMap)) return I;
break;
case Instruction::SIToFP:
if (!SelectCast(I, ISD::SINT_TO_FP, ValueMap)) return I;
break;
@ -594,6 +597,6 @@ unsigned FastISel::FastEmitInst_extractsubreg(unsigned Op0, uint32_t Idx) {
unsigned ResultReg = createResultReg(SRC);
const TargetInstrDesc &II = TII.get(TargetInstrInfo::EXTRACT_SUBREG);
BuildMI(MBB, II, ResultReg).addReg(Op0);
BuildMI(MBB, II, ResultReg).addReg(Op0).addImm(Idx);
return ResultReg;
}