diff options
| -rw-r--r-- | lib/Target/X86/X86ISelPattern.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp index 5d91fe41b4..0e77a7f8b8 100644 --- a/lib/Target/X86/X86ISelPattern.cpp +++ b/lib/Target/X86/X86ISelPattern.cpp @@ -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); |