[llvm-commits] [llvm] r43249 - in /llvm/trunk: include/llvm/Target/MRegisterInfo.h lib/CodeGen/LowerSubregs.cpp

[Evan Cheng]

Author: evancheng
Date: Tue Oct 23 01:51:50 2007
New Revision: 43249

URL: http://llvm.org/viewvc/llvm-project?rev=43249&view=rev
Log:
isSubRegOf() is a dup of isSubRegister.

Modified:
    llvm/trunk/include/llvm/Target/MRegisterInfo.h
    llvm/trunk/lib/CodeGen/LowerSubregs.cpp

Modified: llvm/trunk/include/llvm/Target/MRegisterInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/MRegisterInfo.h?rev=43249&r1=43248&r2=43249&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Target/MRegisterInfo.h (original)
+++ llvm/trunk/include/llvm/Target/MRegisterInfo.h Tue Oct 23 01:51:50 2007
@@ -375,17 +375,6 @@
     return get(RegNo).SuperRegs;
   }
 
-  /// isSubRegOf - Predicate which returns true if RegA is a sub-register of 
-  /// RegB. Returns false otherwise.
-  ///
-  bool isSubRegOf(unsigned RegA, unsigned RegB) const {
-    const TargetRegisterDesc &RD = (*this)[RegA];
-    for (const unsigned *reg = RD.SuperRegs; *reg != 0; ++reg)
-      if (*reg == RegB)
-        return true;
-    return false;
-  }
-
   /// getName - Return the symbolic target specific name for the specified
   /// physical register.
   const char *getName(unsigned RegNo) const {

Modified: llvm/trunk/lib/CodeGen/LowerSubregs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LowerSubregs.cpp?rev=43249&r1=43248&r2=43249&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/LowerSubregs.cpp (original)
+++ llvm/trunk/lib/CodeGen/LowerSubregs.cpp Tue Oct 23 01:51:50 2007
@@ -146,7 +146,7 @@
   // of the destination, we copy the subreg into the source
   // However, this is only safe if the insert instruction is the kill
   // of the source register
-  bool revCopyOrder = MRI.isSubRegOf(InsReg, DstReg);    
+  bool revCopyOrder = MRI.isSubRegister(DstReg, InsReg);
   if (revCopyOrder && InsReg != DstSubReg) {
     if (MI->getOperand(1).isKill()) {
       DstSubReg = MRI.getSubReg(SrcReg, SubIdx);