Add target triple.

llvm-svn: 122980
diff --git a/clang/test/CodeGenCXX/debug-info-large-constant.cpp b/clang/test/CodeGenCXX/debug-info-large-constant.cpp
index 43f0463..2daa189 100644
--- a/clang/test/CodeGenCXX/debug-info-large-constant.cpp
+++ b/clang/test/CodeGenCXX/debug-info-large-constant.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -g %s -o /dev/null
+// RUN: %clang_cc1 -g -triple=x86_64-apple-darwin %s -o /dev/null
 // PR 8913
 
 typedef __uint128_t word128;