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Generalize ExpandIntToFP to handle the case where the operand is legal

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and it's the result that requires expansion. This code is a little confusing
because the TargetLoweringInfo tables for [US]INT_TO_FP use the operand type
(the integer type) rather than the result type. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48206 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-03-11 01:59:03 +00:00
parent b779580100
commit 034f60ed24
4 changed files with 37 additions and 11 deletions
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4
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -2380,6 +2380,10 @@ SDOperand PPCTargetLowering::LowerFP_ROUND_INREG(SDOperand Op,
}
SDOperand PPCTargetLowering::LowerSINT_TO_FP(SDOperand Op, SelectionDAG &DAG) {
// Don't handle ppc_fp128 here; let it be lowered to a libcall.
if (Op.getValueType() != MVT::f32 && Op.getValueType() != MVT::f64)
return SDOperand();
if (Op.getOperand(0).getValueType() == MVT::i64) {
SDOperand Bits = DAG.getNode(ISD::BIT_CONVERT, MVT::f64, Op.getOperand(0));
SDOperand FP = DAG.getNode(PPCISD::FCFID, MVT::f64, Bits);