Mips specific inline assembler constraint 'R'

'R' An address that can be sued in a non-macro load or store.
This patch includes a positive test case.

llvm-svn: 176453

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index c63ccce9caf..9ff4ac08ee0 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -4486,6 +4486,9 @@ public:
     case 'x': // hilo register pair
       Info.setAllowsRegister();
       return true;
+    case 'R': // An address tha can be used in a non-macro load or store
+      Info.setAllowsMemory();
+      return true;
     }
   }