[llvm-commits] CVS: llvm/lib/Target/X86/X86ISelLowering.cpp X86InstrInfo.td

[Chris Lattner]

Changes in directory llvm/lib/Target/X86:

X86ISelLowering.cpp updated: 1.63 -> 1.64
X86InstrInfo.td updated: 1.221 -> 1.222
---
Log message:

The FP stack doesn't support UNDEF, ask the legalizer to legalize it
instead of lying and saying we have it.


---
Diffs of the changes:  (+3 -5)

 X86ISelLowering.cpp |    4 +++-
 X86InstrInfo.td     |    4 ----
 2 files changed, 3 insertions(+), 5 deletions(-)


Index: llvm/lib/Target/X86/X86ISelLowering.cpp
diff -u llvm/lib/Target/X86/X86ISelLowering.cpp:1.63 llvm/lib/Target/X86/X86ISelLowering.cpp:1.64
--- llvm/lib/Target/X86/X86ISelLowering.cpp:1.63	Sun Jan 29 00:26:08 2006
+++ llvm/lib/Target/X86/X86ISelLowering.cpp	Sun Jan 29 00:44:22 2006
@@ -221,7 +221,9 @@
   } else {
     // Set up the FP register classes.
     addRegisterClass(MVT::f64, X86::RFPRegisterClass);
-
+    
+    setOperationAction(ISD::UNDEF, MVT::f64, Expand);
+    
     if (!X86PatIsel) {
       setOperationAction(ISD::SINT_TO_FP, MVT::i16, Custom);
       setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom);


Index: llvm/lib/Target/X86/X86InstrInfo.td
diff -u llvm/lib/Target/X86/X86InstrInfo.td:1.221 llvm/lib/Target/X86/X86InstrInfo.td:1.222
--- llvm/lib/Target/X86/X86InstrInfo.td:1.221	Fri Jan 27 16:53:29 2006
+++ llvm/lib/Target/X86/X86InstrInfo.td	Sun Jan 29 00:44:22 2006
@@ -3022,10 +3022,6 @@
 def : Pat<(f64 fp64immneg0), (FpCHS (FpLD0))>, Requires<[FPStack]>;
 def : Pat<(f64 fp64immneg1), (FpCHS (FpLD1))>, Requires<[FPStack]>;
 
-// RFP undef
-def : Pat<(f64 (undef)), (FpLD0)>,  Requires<[FPStack]>;
-
-
 //===----------------------------------------------------------------------===//
 // Some peepholes
 //===----------------------------------------------------------------------===//