[Sparc] LLONG is not lock-free atomic on v8

Differential Revision: https://reviews.llvm.org/D26286

llvm-svn: 286376
diff --git a/clang/test/Preprocessor/init.c b/clang/test/Preprocessor/init.c
index c541faa..1fe239c 100644
--- a/clang/test/Preprocessor/init.c
+++ b/clang/test/Preprocessor/init.c
@@ -6913,6 +6913,7 @@
 // SPARC:#define __FLT_MIN_EXP__ (-125)
 // SPARC:#define __FLT_MIN__ 1.17549435e-38F
 // SPARC:#define __FLT_RADIX__ 2
+// SPARC:#define __GCC_ATOMIC_LLONG_LOCK_FREE 1
 // SPARC:#define __INT16_C_SUFFIX__
 // SPARC:#define __INT16_FMTd__ "hd"
 // SPARC:#define __INT16_FMTi__ "hi"