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Add support for sign-extending non-legal types in SelectSIToFP().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143603 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier
2011-11-03 02:04:59 +00:00
parent d1ffc739c1
commit 463fe24f1d
2 changed files with 110 additions and 5 deletions
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19
lib/Target/ARM/ARMFastISel.cpp
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@@ -1329,16 +1329,25 @@ bool ARMFastISel::SelectSIToFP(const Instruction *I) {
if (!isTypeLegal(Ty, DstVT))
return false;
// FIXME: Handle sign-extension where necessary.
if (!I->getOperand(0)->getType()->isIntegerTy(32))
Value *Src = I->getOperand(0);
EVT SrcVT = TLI.getValueType(Src->getType(), true);
if (SrcVT != MVT::i32 && SrcVT != MVT::i16 && SrcVT != MVT::i8)
return false;
unsigned Op = getRegForValue(I->getOperand(0));
if (Op == 0) return false;
unsigned SrcReg = getRegForValue(Src);
if (SrcReg == 0) return false;
// Handle sign-extension.
if (SrcVT == MVT::i16 || SrcVT == MVT::i8) {
EVT DestVT = MVT::i32;
unsigned ResultReg = ARMEmitIntExt(SrcVT, SrcReg, DestVT, /*isZExt*/ false);
if (ResultReg == 0) return false;
SrcReg = ResultReg;
}
// The conversion routine works on fp-reg to fp-reg and the operand above
// was an integer, move it to the fp registers if possible.
unsigned FP = ARMMoveToFPReg(MVT::f32, Op);
unsigned FP = ARMMoveToFPReg(MVT::f32, SrcReg);
if (FP == 0) return false;
unsigned Opc;