Index: test/Driver/cuda-options.cu
===================================================================
--- test/Driver/cuda-options.cu
+++ test/Driver/cuda-options.cu
@@ -39,13 +39,6 @@
 // RUN: | FileCheck -check-prefix DEVICE -check-prefix DEVICE-NOSAVE \
 // RUN:    -check-prefix NOHOST -check-prefix NOLINK %s
 
-// Verify that with -S we compile host and device sides to assembly and
-// incorporate device code into the host side.
-// RUN: %clang -### -target x86_64-linux-gnu -S -c %s 2>&1 \
-// RUN: | FileCheck -check-prefix DEVICE -check-prefix DEVICE-NOSAVE \
-// RUN:    -check-prefix HOST -check-prefix INCLUDES-DEVICE \
-// RUN:    -check-prefix NOLINK %s
-
 // Verify that --cuda-gpu-arch option passes the correct GPU archtecture to
 // device compilation.
 // RUN: %clang -### -target x86_64-linux-gnu --cuda-gpu-arch=sm_35 -c %s 2>&1 \
Index: test/Driver/cuda-output-asm.cu
===================================================================
--- /dev/null
+++ test/Driver/cuda-output-asm.cu
@@ -0,0 +1,29 @@
+// Tests CUDA compilation with -S.
+
+// REQUIRES: clang-driver
+// REQUIRES: x86-registered-target
+// REQUIRES: nvptx-registered-target
+
+// RUN: %clang -### -S -target x86_64-linux-gnu --cuda-gpu-arch=sm_20 %s 2>&1 \
+// RUN:   | FileCheck -check-prefix HOST -check-prefix SM20 %s
+// RUN: %clang -### -S -target x86_64-linux-gnu --cuda-host-only -o foo.s %s 2>&1 \
+// RUN:   | FileCheck -check-prefix HOST %s
+// RUN: %clang -### -S -target x86_64-linux-gnu --cuda-gpu-arch=sm_20 \
+// RUN:   --cuda-device-only -o foo.s %s 2>&1 \
+// RUN:   | FileCheck -check-prefix SM20 %s
+// RUN: %clang -### -S -target x86_64-linux-gnu --cuda-gpu-arch=sm_20 \
+// RUN:   --cuda-gpu-arch=sm_30 --cuda-device-only %s 2>&1 \
+// RUN:   | FileCheck -check-prefix SM20 -check-prefix SM30 %s
+
+// HOST-DAG: "-cc1" "-triple" "x86_64--linux-gnu"
+// SM20-DAG: "-cc1" "-triple" "nvptx64-nvidia-cuda"
+// SM20-same: "-target-cpu" "sm_20"
+// SM30-DAG: "-cc1" "-triple" "nvptx64-nvidia-cuda"
+// SM30-same: "-target-cpu" "sm_30"
+
+// RUN: %clang -### -S -target x86_64-linux-gnu -o foo.s %s 2>&1 \
+// RUN:   | FileCheck -check-prefix MULTIPLE-OUTPUT-FILES %s
+// RUN: %clang -### -S -target x86_64-linux-gnu --cuda-device-only \
+// RUN:   --cuda-gpu-arch=sm_20 --cuda-gpu-arch=sm_30 -o foo.s %s 2>&1 \
+// RUN:   | FileCheck -check-prefix MULTIPLE-OUTPUT-FILES %s
+// MULTIPLE-OUTPUT-FILES: error: cannot specify -o when generating multiple output files