[llvm-commits] [llvm] r152044 - in /llvm/trunk/include/llvm: MC/MCRegisterInfo.h Target/TargetRegisterInfo.h

[Jim Grosbach]

Author: grosbach
Date: Mon Mar  5 13:33:24 2012
New Revision: 152044

URL: http://llvm.org/viewvc/llvm-project?rev=152044&view=rev
Log:
MCRegisterInfo-ize getMatchingSuperReg.

Modified:
    llvm/trunk/include/llvm/MC/MCRegisterInfo.h
    llvm/trunk/include/llvm/Target/TargetRegisterInfo.h

Modified: llvm/trunk/include/llvm/MC/MCRegisterInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCRegisterInfo.h?rev=152044&r1=152043&r2=152044&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/MCRegisterInfo.h (original)
+++ llvm/trunk/include/llvm/MC/MCRegisterInfo.h Mon Mar  5 13:33:24 2012
@@ -248,6 +248,16 @@
     return *(SubRegIndices + (Reg - 1) * NumSubRegIndices + Idx - 1);
   }
 
+  /// getMatchingSuperReg - Return a super-register of the specified register
+  /// Reg so its sub-register of index SubIdx is Reg.
+  unsigned getMatchingSuperReg(unsigned Reg, unsigned SubIdx,
+                               const MCRegisterClass *RC) const {
+    for (const unsigned *SRs = getSuperRegisters(Reg); unsigned SR = *SRs;++SRs)
+      if (Reg == getSubReg(SR, SubIdx) && RC->contains(SR))
+        return SR;
+    return 0;
+  }
+
   /// getSubRegIndex - For a given register pair, return the sub-register index
   /// if the second register is a sub-register of the first. Return zero
   /// otherwise.

Modified: llvm/trunk/include/llvm/Target/TargetRegisterInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/TargetRegisterInfo.h?rev=152044&r1=152043&r2=152044&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Target/TargetRegisterInfo.h (original)
+++ llvm/trunk/include/llvm/Target/TargetRegisterInfo.h Mon Mar  5 13:33:24 2012
@@ -387,10 +387,7 @@
   /// Reg so its sub-register of index SubIdx is Reg.
   unsigned getMatchingSuperReg(unsigned Reg, unsigned SubIdx,
                                const TargetRegisterClass *RC) const {
-    for (const uint16_t *SRs = getSuperRegisters(Reg); unsigned SR = *SRs;++SRs)
-      if (Reg == getSubReg(SR, SubIdx) && RC->contains(SR))
-        return SR;
-    return 0;
+    return MCRegisterInfo::getMatchingSuperReg(Reg, SubIdx, RC->MC);
   }
 
   /// canCombineSubRegIndices - Given a register class and a list of