[llvm-commits] [llvm] r115876 - /llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp

Jakob Stoklund Olesen stoklund at 2pi.dk
Wed Oct 6 16:56:46 PDT 2010


Author: stoklund
Date: Wed Oct  6 18:56:46 2010
New Revision: 115876

URL: http://llvm.org/viewvc/llvm-project?rev=115876&view=rev
Log:
Properly handle GR32_NOSP in X86RegisterInfo::getMatchingSuperRegClass.

This function looks like it is about ready to be generated by TebleGen.

Modified:
    llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp

Modified: llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp?rev=115876&r1=115875&r2=115876&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp Wed Oct  6 18:56:46 2010
@@ -270,9 +270,14 @@
     }
     break;
   case X86::sub_32bit:
-    if (B == &X86::GR32RegClass || B == &X86::GR32_NOSPRegClass) {
+    if (B == &X86::GR32RegClass) {
       if (A->getSize() == 8)
         return A;
+    } else if (B == &X86::GR32_NOSPRegClass) {
+      if (A == &X86::GR64RegClass || &X86::GR64_NOSPRegClass)
+        return &X86::GR64_NOSPRegClass;
+      if (A->getSize() == 8)
+        return getCommonSubClass(A, &X86::GR64_NOSPRegClass);
     } else if (B == &X86::GR32_ABCDRegClass) {
       if (A == &X86::GR64RegClass || A == &X86::GR64_ABCDRegClass ||
           A == &X86::GR64_NOREXRegClass ||





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