Fix the prefix for arm64 triple

Triple.cpp still returns "arm64" as prefix for arm64 triple, causing Clang not
being able to select the correct GCCBuiltin IR.

This patch changes the value to correct prefix "aarch64". Regression test will
be added in the coming patch.

Differential Revision: http://reviews.llvm.org/D4516

llvm-svn: 213240

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/Support/Triple.cpp b/llvm/lib/Support/Triple.cpp
index 2c2c90a99eb..2b8b39782cc 100644
--- a/llvm/lib/Support/Triple.cpp
+++ b/llvm/lib/Support/Triple.cpp
@@ -61,6 +61,8 @@ const char *Triple::getArchTypePrefix(ArchType Kind) {
   default:
     return nullptr;
 
+  case arm64:
+  case arm64_be:
   case aarch64:
   case aarch64_be:  return "aarch64";
 
@@ -69,9 +71,6 @@ const char *Triple::getArchTypePrefix(ArchType Kind) {
   case thumb:
   case thumbeb:     return "arm";
 
-  case arm64:       
-  case arm64_be:    return "arm64";
-
   case ppc64:
   case ppc64le:
   case ppc:         return "ppc";