[llvm-commits] [llvm] r47522 - /llvm/trunk/lib/Target/X86/X86InstrInfo.cpp

[Evan Cheng]

Author: evancheng
Date: Fri Feb 22 19:47:44 2008
New Revision: 47522

URL: http://llvm.org/viewvc/llvm-project?rev=47522&view=rev
Log:
No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.cpp

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.cpp?rev=47522&r1=47521&r2=47522&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.cpp Fri Feb 22 19:47:44 2008
@@ -760,18 +760,6 @@
       return isPICBase;
     }
       
-    // If this is a load from a fixed argument slot, we know the value is
-    // invariant across the whole function, because we don't redefine argument
-    // values.
-#if 0
-    // FIXME: This is disabled due to a remat bug. rdar://5671644
-    if (MI->getOperand(1).isFI()) {
-      const MachineFrameInfo &MFI=*MI->getParent()->getParent()->getFrameInfo();
-      int Idx = MI->getOperand(1).getIndex();
-      return MFI.isFixedObjectIndex(Idx) && MFI.isImmutableObjectIndex(Idx);
-    }
-#endif
-      
     return false;
   }
   // All other instructions marked M_REMATERIALIZABLE are always trivially