clang/test/Driver/cuda-cross-compiling.c

   1 // Tests the driver when targeting the NVPTX architecture directly without a
   2 // host toolchain to perform CUDA mappings.
   3
   4 // REQUIRES: nvptx-registered-target
   5
   6 //
   7 // Test the generated phases when targeting NVPTX.
   8 //
   9 // RUN: %clang -target nvptx64-nvidia-cuda -ccc-print-phases %s 2>&1 \
  10 // RUN:   | FileCheck -check-prefix=PHASES %s
  11
  12 //      PHASES: 0: input, "[[INPUT:.+]]", c
  13 // PHASES-NEXT: 1: preprocessor, {0}, cpp-output
  14 // PHASES-NEXT: 2: compiler, {1}, ir
  15 // PHASES-NEXT: 3: backend, {2}, assembler
  16 // PHASES-NEXT: 4: assembler, {3}, object
  17 // PHASES-NEXT: 5: linker, {4}, image
  18
  19 //
  20 // Test the generated bindings when targeting NVPTX.
  21 //
  22 // RUN: %clang -target nvptx64-nvidia-cuda -ccc-print-bindings %s 2>&1 \
  23 // RUN:   | FileCheck -check-prefix=BINDINGS %s
  24
  25 //      BINDINGS: "nvptx64-nvidia-cuda" - "clang", inputs: ["[[INPUT:.+]]"], output: "[[PTX:.+]].s"
  26 // BINDINGS-NEXT: "nvptx64-nvidia-cuda" - "NVPTX::Assembler", inputs: ["[[PTX]].s"], output: "[[CUBIN:.+]].o"
  27 // BINDINGS-NEXT: "nvptx64-nvidia-cuda" - "NVPTX::Linker", inputs: ["[[CUBIN]].o"], output: "a.out"
  28
  29 //
  30 // Test the generated arguments to the CUDA binary utils when targeting NVPTX.
  31 // Ensure that the '.o' files are converted to '.cubin' if produced internally.
  32 //
  33 // RUN: %clang -target nvptx64-nvidia-cuda -march=sm_61 -### %s 2>&1 \
  34 // RUN:   | FileCheck -check-prefix=ARGS %s
  35
  36 //      ARGS: -cc1" "-triple" "nvptx64-nvidia-cuda" "-S" {{.*}} "-target-cpu" "sm_61" "-target-feature" "+ptx{{[0-9]+}}" {{.*}} "-o" "[[PTX:.+]].s"
  37 // ARGS-NEXT: ptxas{{.*}}"-m64" "-O0" "--gpu-name" "sm_61" "--output-file" "[[CUBIN:.+]].cubin" "[[PTX]].s" "-c"
  38 // ARGS-NEXT: nvlink{{.*}}"-o" "a.out" "-arch" "sm_61" {{.*}} "[[CUBIN]].cubin"
  39
  40 //
  41 // Test the generated arguments to the CUDA binary utils when targeting NVPTX.
  42 // Ensure that we emit '.o' files if compiled with '-c'
  43 //
  44 // RUN: %clang -target nvptx64-nvidia-cuda -march=sm_61 -c -### %s 2>&1 \
  45 // RUN:   | FileCheck -check-prefix=OBJECT %s
  46 // RUN: %clang -target nvptx64-nvidia-cuda -save-temps -march=sm_61 -c -### %s 2>&1 \
  47 // RUN:   | FileCheck -check-prefix=OBJECT %s
  48
  49 //      OBJECT: -cc1" "-triple" "nvptx64-nvidia-cuda" "-S" {{.*}} "-target-cpu" "sm_61" "-target-feature" "+ptx{{[0-9]+}}" {{.*}} "-o" "[[PTX:.+]].s"
  50 // OBJECT-NEXT: ptxas{{.*}}"-m64" "-O0" "--gpu-name" "sm_61" "--output-file" "[[OBJ:.+]].o" "[[PTX]].s" "-c"
  51
  52 //
  53 // Test the generated arguments to the CUDA binary utils when targeting NVPTX.
  54 // Ensure that we copy input '.o' files to '.cubin' files when linking.
  55 //
  56 // RUN: touch %t.o
  57 // RUN: %clang -target nvptx64-nvidia-cuda -march=sm_61 -### %t.o 2>&1 \
  58 // RUN:   | FileCheck -check-prefix=LINK %s
  59
  60 // LINK: nvlink{{.*}}"-o" "a.out" "-arch" "sm_61" {{.*}} "{{.*}}.cubin"
  61
  62 //
  63 // Test the generated arguments default to a value with no architecture.
  64 //
  65 // RUN: %clang --target=nvptx64-nvidia-cuda -### --cuda-path=%S/Inputs/CUDA/usr/local/cuda %s 2>&1 \
  66 // RUN:   | FileCheck -check-prefix=DEFAULT %s
  67
  68 //      DEFAULT: -cc1" "-triple" "nvptx64-nvidia-cuda" "-S" {{.*}} "-target-cpu" "sm_52" "-target-feature" "+ptx{{[0-9]+}}" {{.*}} "-o" "[[PTX:.+]].s"
  69 // DEFAULT-NEXT: ptxas{{.*}}"-m64" "-O0" "--gpu-name" "sm_52" "--output-file" "[[CUBIN:.+]].cubin" "[[PTX]].s" "-c"
  70 // DEFAULT-NEXT: nvlink{{.*}}"-o" "a.out" "-arch" "sm_52" {{.*}} "[[CUBIN]].cubin"
  71
  72 //
  73 // Test to ensure that we enable handling global constructors in a freestanding
  74 // Nvidia compilation.
  75 //
  76 // RUN: %clang -target nvptx64-nvidia-cuda -march=sm_70 %s -### 2>&1 \
  77 // RUN:   | FileCheck -check-prefix=LOWERING %s
  78
  79 // LOWERING: -cc1" "-triple" "nvptx64-nvidia-cuda" {{.*}} "-mllvm" "--nvptx-lower-global-ctor-dtor"