Recognize armv7a and friends as aliases for armv7-a etc. for the purpose
of architecture naming.

llvm-svn: 198043
diff --git a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
index 2d24978..39bcbf3 100644
--- a/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
+++ b/llvm/lib/Target/ARM/MCTargetDesc/ARMELFStreamer.cpp
@@ -71,6 +71,7 @@
     break;
 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
   case ARM::ID: return NAME;
+#define ARM_ARCH_ALIAS(NAME, ID) /* empty */
 #include "ARMArchName.def"
   }
   return NULL;
@@ -83,6 +84,7 @@
     break;
 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
   case ARM::ID: return DEFAULT_CPU_NAME;
+#define ARM_ARCH_ALIAS(NAME, ID) /* empty */
 #include "ARMArchName.def"
   }
   return NULL;
@@ -95,6 +97,7 @@
     break;
 #define ARM_ARCH_NAME(NAME, ID, DEFAULT_CPU_NAME, DEFAULT_CPU_ARCH) \
   case ARM::ID: return ARMBuildAttrs::DEFAULT_CPU_ARCH;
+#define ARM_ARCH_ALIAS(NAME, ID) /* empty */
 #include "ARMArchName.def"
   }
   return 0;