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Next PPC long double bits. First cut at constants.

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No compile-time support for constant operations yet,
just format transformations.  Make readers and
writers work.  Split constants into 2 doubles in
Legalize.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2007-10-11 18:07:22 +00:00
parent f9193de25b
commit a471c2ecda
10 changed files with 196 additions and 18 deletions
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8
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -5196,6 +5196,14 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
}
case ISD::ConstantFP: {
ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node);
if (CFP->getValueType(0) == MVT::ppcf128) {
APInt api = CFP->getValueAPF().convertToAPInt();
Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])),
MVT::f64);
Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])),
MVT::f64);
break;
}
Lo = ExpandConstantFP(CFP, false, DAG, TLI);
if (getTypeAction(Lo.getValueType()) == Expand)
ExpandOp(Lo, Lo, Hi);