Don't pass -O0 to clang_cc1, it is the default.

llvm-svn: 189910
diff --git a/clang/test/CodeGen/vld_dup.c b/clang/test/CodeGen/vld_dup.c
index 2bc2519..9590412 100644
--- a/clang/test/CodeGen/vld_dup.c
+++ b/clang/test/CodeGen/vld_dup.c
@@ -1,7 +1,7 @@
 // REQUIRES: arm-registered-target
 // RUN: %clang_cc1 -triple armv7a-linux-gnueabi \
 // RUN:   -target-cpu cortex-a8 \
-// RUN:   -emit-llvm -O0 -o - %s | FileCheck %s
+// RUN:   -emit-llvm -o - %s | FileCheck %s
 #include <arm_neon.h>
 int main(){
     int32_t v0[3];