[llvm-commits] CVS: llvm/lib/Target/X86/X86ISelPattern.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

X86ISelPattern.cpp updated: 1.95 -> 1.96
---
Log message:

Add support for ISD::UNDEF to the X86 be



---
Diffs of the changes:  (+8 -0)

 X86ISelPattern.cpp |    8 ++++++++
 1 files changed, 8 insertions(+)


Index: llvm/lib/Target/X86/X86ISelPattern.cpp
diff -u llvm/lib/Target/X86/X86ISelPattern.cpp:1.95 llvm/lib/Target/X86/X86ISelPattern.cpp:1.96
--- llvm/lib/Target/X86/X86ISelPattern.cpp:1.95	Tue Mar 29 19:10:00 2005
+++ llvm/lib/Target/X86/X86ISelPattern.cpp	Fri Apr  1 16:46:45 2005
@@ -1384,6 +1384,14 @@
     }
     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);