Eliminated the classification of control registers into %ecr_
and %rcr_, leaving just %cr_ which is what people expect.
Updated the disassembler to support this unified register set.
Added a testcase to verify that the registers continue to be
decoded correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103196 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c
index 64f6b2d..6c3ff6b 100644
--- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c
+++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c
@@ -1034,14 +1034,10 @@
       if (index > 7)                                      \
         *valid = 0;                                       \
       return prefix##_DR0 + index;                        \
-    case TYPE_CR32:                                       \
-      if (index > 7)                                      \
-        *valid = 0;                                       \
-      return prefix##_ECR0 + index;                       \
-    case TYPE_CR64:                                       \
+    case TYPE_CONTROLREG:                                 \
       if (index > 8)                                      \
         *valid = 0;                                       \
-      return prefix##_RCR0 + index;                       \
+      return prefix##_CR0 + index;                        \
     }                                                     \
   }