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Add support for ISD::UNDEF to the X86 be

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20990 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-04-01 22:46:45 +00:00
parent fc1b1dad88
commit 7ce7eff54c
1 changed files with 8 additions and 0 deletions
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8
lib/Target/X86/X86ISelPattern.cpp
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@ -1384,6 +1384,14 @@ unsigned ISel::SelectExpr(SDOperand N) {
}
BuildMI(BB, Opc, 1,Result).addImm(cast<ConstantSDNode>(N)->getValue());
return Result;
case ISD::UNDEF:
if (Node->getValueType(0) == MVT::f64) {
// FIXME: SHOULD TEACH STACKIFIER ABOUT UNDEF VALUES!
BuildMI(BB, X86::FLD0, 0, Result);
} else {
BuildMI(BB, X86::IMPLICIT_DEF, 0, Result);
}
return Result;
case ISD::GlobalAddress: {
GlobalValue *GV = cast<GlobalAddressSDNode>(N)->getGlobal();
BuildMI(BB, X86::MOV32ri, 1, Result).addGlobalAddress(GV);