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FP EXTLOAD is not support on all archs, expand to LOAD and FP_EXTEND

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22319 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2005-06-30 19:22:37 +00:00
parent 6cfd1ebcd3
commit 9d416f713e
1 changed files with 9 additions and 0 deletions
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9
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -522,6 +522,15 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1));
return Result.getValue(Op.ResNo);
case TargetLowering::Expand:
//f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND
if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) {
SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, Node->getOperand(2));
Result =
DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load, SrcVT);
if (Op.ResNo)
return Load.getValue(1);
return Result;
}
assert(Node->getOpcode() != ISD::EXTLOAD &&
"EXTLOAD should always be supported!");
// Turn the unsupported load into an EXTLOAD followed by an explicit