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With setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand), Legalize

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should be able to handle this case.  The code is there, so let's see
if it works.

llvm-svn: 22288
This commit is contained in:
Andrew Lenharth 2005-06-26 22:23:06 +00:00
parent 879a78ea54
commit 91bc570aac
1 changed files with 12 additions and 36 deletions
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48
lib/Target/Alpha/AlphaISelPattern.cpp
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@ -90,18 +90,21 @@ namespace {
addRegisterClass(MVT::f32, Alpha::FPRCRegisterClass);
setOperationAction(ISD::BRCONDTWOWAY, MVT::Other, Expand);
setOperationAction(ISD::EXTLOAD , MVT::i1 , Promote);
setOperationAction(ISD::EXTLOAD , MVT::f32 , Promote);
setOperationAction(ISD::ZEXTLOAD , MVT::i1 , Expand);
setOperationAction(ISD::ZEXTLOAD , MVT::i32 , Expand);
setOperationAction(ISD::EXTLOAD, MVT::i1, Promote);
setOperationAction(ISD::EXTLOAD, MVT::f32, Promote);
setOperationAction(ISD::SEXTLOAD , MVT::i1 , Expand);
setOperationAction(ISD::SEXTLOAD , MVT::i8 , Expand);
setOperationAction(ISD::SEXTLOAD , MVT::i16 , Expand);
setOperationAction(ISD::ZEXTLOAD, MVT::i1 , Expand);
setOperationAction(ISD::ZEXTLOAD, MVT::i32 , Expand);
setOperationAction(ISD::SREM , MVT::f32 , Expand);
setOperationAction(ISD::SREM , MVT::f64 , Expand);
setOperationAction(ISD::SEXTLOAD, MVT::i1, Expand);
setOperationAction(ISD::SEXTLOAD, MVT::i8, Expand);
setOperationAction(ISD::SEXTLOAD, MVT::i16, Expand);
setOperationAction(ISD::SREM, MVT::f32, Expand);
setOperationAction(ISD::SREM, MVT::f64, Expand);
setOperationAction(ISD::UINT_TO_FP, MVT::i64, Expand);
if (!EnableAlphaCT) {
setOperationAction(ISD::CTPOP , MVT::i64 , Expand);
@ -1344,33 +1347,6 @@ unsigned AlphaISel::SelectExprFP(SDOperand N, unsigned Result)
return Result;
}
case ISD::UINT_TO_FP:
{
//FIXME: First test if we will have problems with the sign bit before doing the slow thing
assert (N.getOperand(0).getValueType() == MVT::i64
&& "only quads can be loaded from");
Tmp1 = SelectExpr(N.getOperand(0)); // Get the operand register
Tmp2 = MakeReg(MVT::i64);
BuildMI(BB, Alpha::SRL, 2, Tmp2).addReg(Tmp1).addImm(1);
Tmp3 = MakeReg(MVT::i64);
BuildMI(BB, Alpha::CMPLT, 2, Tmp3).addReg(Tmp1).addReg(Alpha::R31);
unsigned Tmp4 = MakeReg(MVT::f64), Tmp5 = MakeReg(MVT::f64), Tmp6 = MakeReg(MVT::f64);
MoveInt2FP(Tmp1, Tmp4, true);
MoveInt2FP(Tmp2, Tmp5, true);
MoveInt2FP(Tmp3, Tmp6, true);
Tmp1 = MakeReg(MVT::f64);
Tmp2 = MakeReg(MVT::f64);
Opc = DestType == MVT::f64 ? Alpha::CVTQT : Alpha::CVTQS;
BuildMI(BB, Opc, 1, Tmp1).addReg(Tmp4);
BuildMI(BB, Opc, 1, Tmp2).addReg(Tmp5);
Tmp3 = MakeReg(MVT::f64);
BuildMI(BB, Alpha::ADDT, 2, Tmp3).addReg(Tmp2).addReg(Tmp2);
//Ok, now tmp1 had the plain covereted
//tmp3 has the reduced converted and added
//tmp6 has the conditional to use
BuildMI(BB, Alpha::FCMOVNE, 3, Result).addReg(Tmp1).addReg(Tmp3).addReg(Tmp6);
return Result;
}
case ISD::SINT_TO_FP:
{
assert (N.getOperand(0).getValueType() == MVT::i64