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PPC long double. Implement a couple more conversions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42888 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2007-10-12 01:37:08 +00:00
parent ac9385a555
commit ca68aaa0e5
1 changed files with 35 additions and 0 deletions
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35
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -5952,6 +5952,17 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
Node, false, Hi);
break;
case ISD::FP_EXTEND:
if (VT == MVT::ppcf128) {
assert(Node->getOperand(0).getValueType()==MVT::f32 ||
Node->getOperand(0).getValueType()==MVT::f64);
const uint64_t zero = 0;
if (Node->getOperand(0).getValueType()==MVT::f32)
Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0));
else
Hi = Node->getOperand(0);
Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64);
break;
}
Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi);
break;
case ISD::FP_ROUND:
@ -6021,6 +6032,30 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
case ISD::UINT_TO_FP: {
bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP;
MVT::ValueType SrcVT = Node->getOperand(0).getValueType();
if (VT == MVT::ppcf128) {
static uint64_t zero = 0;
if (isSigned) {
Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64,
Node->getOperand(0)));
Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64);
} else {
static uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 };
Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64,
Node->getOperand(0)));
Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64);
Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi);
ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0),
DAG.getConstant(0, MVT::i32),
DAG.getNode(ISD::FADD, MVT::ppcf128, Hi,
DAG.getConstantFP(
APFloat(APInt(128, 2, TwoE32)),
MVT::ppcf128)),
Hi,
DAG.getCondCode(ISD::SETLT)),
Lo, Hi);
}
break;
}
RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL;
if (Node->getOperand(0).getValueType() == MVT::i64) {
if (VT == MVT::f32)