Only pass -mcpu, -march, -mfpu to linux-as on ARM.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155431 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/linux-as.c b/test/Driver/linux-as.c
index 8c14993..b3265da 100644
--- a/test/Driver/linux-as.c
+++ b/test/Driver/linux-as.c
@@ -49,3 +49,8 @@
 // RUN:   -no-integrated-as -c %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=ARM-HARDFP %s
 // CHECK-ARM-HARDFP: as{{(.exe)?}}" "-mfloat-abi=hard"
+//
+// RUN: %clang -target ppc-linux -mcpu=invalid-cpu -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=PPC-NO-MCPU %s
+// CHECK-PPC-NO-MCPU-NOT: as{{.*}} "-mcpu=invalid-cpu"