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.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176453 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/mips-constraint-regs.c b/test/CodeGen/mips-constraint-regs.c
index c42a888..0d533f5 100644
--- a/test/CodeGen/mips-constraint-regs.c
+++ b/test/CodeGen/mips-constraint-regs.c
@@ -2,9 +2,7 @@
 // RUN: | FileCheck %s
 
 // This checks that the frontend will accept inline asm constraints
-// c', 'l' and 'x'. Semantic checking will happen in the
-// llvm backend. Any bad constraint letters will cause the frontend to
-// error out.
+// c', 'l' and 'x'.
 
 int main()
 {