diff --git a/clang/test/CodeGen/bool_test.c b/clang/test/CodeGen/bool_test.c
index f755b5845476..ffaaef8123cc 100644
--- a/clang/test/CodeGen/bool_test.c
+++ b/clang/test/CodeGen/bool_test.c
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -triple powerpc-apple-darwin -emit-llvm -o - %s| FileCheck %s
+// RUN: %clang_cc1 -triple powerpc-apple-darwin -emit-llvm -o - %s| FileCheck -check-prefix=DARWINPPC-CHECK %s
 
 int boolsize = sizeof(_Bool);
-//CHECK: boolsize = global i32 4, align 4
+//DARWINPPC-CHECK: boolsize = global i32 4, align 4
 
diff --git a/clang/test/CodeGen/va_list_test.c b/clang/test/CodeGen/va_list_test.c
index 33a12d6e28dc..74f7837d2d3c 100644
--- a/clang/test/CodeGen/va_list_test.c
+++ b/clang/test/CodeGen/va_list_test.c
@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -triple powerpc-unknown-freebsd -emit-llvm -o - %s| FileCheck %s
+// RUN: %clang_cc1 -triple powerpc-unknown-freebsd -emit-llvm -o - %s| FileCheck -check-prefix=SVR4-CHECK %s
 
 #include <stdarg.h>
 
 int va_list_size = sizeof(va_list);
-// CHECK: va_list_size = global i32 12, align 4
+// SVR4-CHECK: va_list_size = global i32 12, align 4