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[X86] Remove MVT::i1 handling code from LowerTRUNCATE
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Authored by craig.topper on Oct 10 2017, 10:54 PM.

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I don't think this is necessary with i1 being illegal now.

LGTM

This revision is now accepted and ready to land.Oct 11 2017, 1:51 AM

This revision was automatically updated to reflect the committed changes.

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llvm/

trunk/

lib/

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8 lines

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	}			}

	SDValue X86TargetLowering::LowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const {			SDValue X86TargetLowering::LowerTRUNCATE(SDValue Op, SelectionDAG &DAG) const {
	SDLoc DL(Op);			SDLoc DL(Op);
	MVT VT = Op.getSimpleValueType();			MVT VT = Op.getSimpleValueType();
	SDValue In = Op.getOperand(0);			SDValue In = Op.getOperand(0);
	MVT InVT = In.getSimpleValueType();			MVT InVT = In.getSimpleValueType();

	if (VT == MVT::i1) {
	assert((InVT.isInteger() && (InVT.getSizeInBits() <= 64)) &&
	"Invalid scalar TRUNCATE operation");
	if (InVT.getSizeInBits() >= 32)
	return SDValue();
	In = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i32, In);
	return DAG.getNode(ISD::TRUNCATE, DL, VT, In);
	}
	assert(VT.getVectorNumElements() == InVT.getVectorNumElements() &&			assert(VT.getVectorNumElements() == InVT.getVectorNumElements() &&
	"Invalid TRUNCATE operation");			"Invalid TRUNCATE operation");

	if (VT.getVectorElementType() == MVT::i1)			if (VT.getVectorElementType() == MVT::i1)
	return LowerTruncateVecI1(Op, DAG, Subtarget);			return LowerTruncateVecI1(Op, DAG, Subtarget);

	// vpmovqb/w/d, vpmovdb/w, vpmovwb			// vpmovqb/w/d, vpmovdb/w, vpmovwb
	if (Subtarget.hasAVX512()) {			if (Subtarget.hasAVX512()) {
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