Fix the result type of X86's truncate to i8.
llvm-svn: 53688
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2714059079
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f169f81036
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@ -1120,19 +1120,17 @@ SDNode *X86DAGToDAGISel::getTruncate(SDOperand N0, MVT VT) {
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// Ensure that the source register has an 8-bit subreg on 32-bit targets
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if (!Subtarget->is64Bit()) {
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unsigned Opc;
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MVT VT;
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switch (N0.getValueType().getSimpleVT()) {
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MVT N0VT = N0.getValueType();
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switch (N0VT.getSimpleVT()) {
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default: assert(0 && "Unknown truncate!");
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case MVT::i16:
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Opc = X86::MOV16to16_;
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VT = MVT::i16;
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break;
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case MVT::i32:
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Opc = X86::MOV32to32_;
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VT = MVT::i32;
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break;
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}
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N0 = SDOperand(CurDAG->getTargetNode(Opc, VT, MVT::Flag, N0), 0);
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N0 = SDOperand(CurDAG->getTargetNode(Opc, N0VT, MVT::Flag, N0), 0);
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return CurDAG->getTargetNode(X86::EXTRACT_SUBREG,
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VT, N0, SRIdx, N0.getValue(1));
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}
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