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Minor code cleanups; no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63740 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -976,11 +976,11 @@ SDValue X86TargetLowering::LowerRET(SDValue Op, SelectionDAG &DAG) {
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// Returns in ST0/ST1 are handled specially: these are pushed as operands to
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// the RET instruction and handled by the FP Stackifier.
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if (RVLocs[i].getLocReg() == X86::ST0 ||
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RVLocs[i].getLocReg() == X86::ST1) {
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if (VA.getLocReg() == X86::ST0 ||
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VA.getLocReg() == X86::ST1) {
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// If this is a copy from an xmm register to ST(0), use an FPExtend to
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// change the value to the FP stack register class.
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if (isScalarFPTypeInSSEReg(RVLocs[i].getValVT()))
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if (isScalarFPTypeInSSEReg(VA.getValVT()))
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ValToCopy = DAG.getNode(ISD::FP_EXTEND, dl, MVT::f80, ValToCopy);
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RetOps.push_back(ValToCopy);
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// Don't emit a copytoreg.
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@ -1042,7 +1042,8 @@ LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
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// Copy all of the result registers out of their specified physreg.
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for (unsigned i = 0; i != RVLocs.size(); ++i) {
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MVT CopyVT = RVLocs[i].getValVT();
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CCValAssign &VA = RVLocs[i];
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MVT CopyVT = VA.getValVT();
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// If this is x86-64, and we disabled SSE, we can't return FP values
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if ((CopyVT == MVT::f32 || CopyVT == MVT::f64) &&
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@ -1054,21 +1055,21 @@ LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
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// If this is a call to a function that returns an fp value on the floating
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// point stack, but where we prefer to use the value in xmm registers, copy
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// it out as F80 and use a truncate to move it from fp stack reg to xmm reg.
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if ((RVLocs[i].getLocReg() == X86::ST0 ||
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RVLocs[i].getLocReg() == X86::ST1) &&
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isScalarFPTypeInSSEReg(RVLocs[i].getValVT())) {
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if ((VA.getLocReg() == X86::ST0 ||
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VA.getLocReg() == X86::ST1) &&
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isScalarFPTypeInSSEReg(VA.getValVT())) {
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CopyVT = MVT::f80;
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}
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Chain = DAG.getCopyFromReg(Chain, dl, RVLocs[i].getLocReg(),
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Chain = DAG.getCopyFromReg(Chain, dl, VA.getLocReg(),
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CopyVT, InFlag).getValue(1);
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SDValue Val = Chain.getValue(0);
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InFlag = Chain.getValue(2);
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if (CopyVT != RVLocs[i].getValVT()) {
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if (CopyVT != VA.getValVT()) {
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// Round the F80 the right size, which also moves to the appropriate xmm
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// register.
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Val = DAG.getNode(ISD::FP_ROUND, dl, RVLocs[i].getValVT(), Val,
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Val = DAG.getNode(ISD::FP_ROUND, dl, VA.getValVT(), Val,
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// This truncation won't change the value.
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DAG.getIntPtrConstant(1));
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}
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