[llvm-commits] [llvm] r148918 - /llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp

[Akira Hatanaka]

Author: ahatanak
Date: Tue Jan 24 22:19:22 2012
New Revision: 148918

URL: http://llvm.org/viewvc/llvm-project?rev=148918&view=rev
Log:
Mark 64-bit register RA_64 unused too.
 

Modified:
    llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp

Modified: llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp?rev=148918&r1=148917&r2=148918&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsFrameLowering.cpp Tue Jan 24 22:19:22 2012
@@ -322,7 +322,6 @@
 processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
                                      RegScavenger *RS) const {
   MachineRegisterInfo& MRI = MF.getRegInfo();
-  unsigned RA = STI.isABI_N64() ? Mips::RA_64 : Mips::RA;
   unsigned FP = STI.isABI_N64() ? Mips::FP_64 : Mips::FP;
 
   // FIXME: remove this code if register allocator can correctly mark
@@ -338,7 +337,9 @@
   // To correct this, $ra is explicitly marked unused if there is no
   // function call.
   if (MF.getFrameInfo()->hasCalls())
-    MRI.setPhysRegUsed(RA);
-  else
-    MRI.setPhysRegUnused(RA);
+    MRI.setPhysRegUsed(Mips::RA);
+  else {
+    MRI.setPhysRegUnused(Mips::RA);
+    MRI.setPhysRegUnused(Mips::RA_64);
+  }
 }