clang/test/Driver/x86_64-nacl-defines.cpp: Specify filename generated.
FIXME: It could be /dev/null.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168429 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/x86_64-nacl-defines.cpp b/test/Driver/x86_64-nacl-defines.cpp
index caa9a74..b7c8940 100644
--- a/test/Driver/x86_64-nacl-defines.cpp
+++ b/test/Driver/x86_64-nacl-defines.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang -target x86_64-unknown-nacl -ccc-echo %s -emit-llvm-only -c 2>&1 | FileCheck %s -check-prefix=ECHO
+// RUN: %clang -target x86_64-unknown-nacl -ccc-echo %s -emit-llvm-only -c -o %t.o 2>&1 | FileCheck %s -check-prefix=ECHO
// RUN: %clang -target x86_64-unknown-nacl %s -emit-llvm -S -c -o - | FileCheck %s
// RUN: %clang -target x86_64-unknown-nacl %s -emit-llvm -S -c -pthread -o - | FileCheck %s -check-prefix=THREADS
