# hipify-clang `hipify-clang` is a clang-based tool to translate CUDA source code into portable HIP C++ automatically. ## Table of Contents - [Supported CUDA APIs](#cuda-apis) - [Dependencies](#dependencies) - [Build and install](#build-and-install) * [Building](#building) * [Testing](#testing) * [Linux](#linux) * [Windows](#windows) - [Running and using hipify-clang](#running-and-using-hipify-clang) * [hipify-perl](#perl) - [Disclaimer](#disclaimer) ## Supported CUDA APIs - [Runtime API](../docs/markdown/CUDA_Runtime_API_functions_supported_by_HIP.md) - [Driver API](../docs/markdown/CUDA_Driver_API_functions_supported_by_HIP.md) - [cuComplex API](../docs/markdown/cuComplex_API_supported_by_HIP.md) - [cuBLAS](../docs/markdown/CUBLAS_API_supported_by_HIP.md) - [cuRAND](../docs/markdown/CURAND_API_supported_by_HIP.md) - [cuDNN](../docs/markdown/CUDNN_API_supported_by_HIP.md) - [cuFFT](../docs/markdown/CUFFT_API_supported_by_HIP.md) - [cuSPARSE](../docs/markdown/CUSPARSE_API_supported_by_HIP.md) ## Dependencies `hipify-clang` requires: 1. [**LLVM+CLANG**](http://releases.llvm.org) of at least version [3.8.0](http://releases.llvm.org/download.html#3.8.0); the latest stable and recommended release: [**9.0.0**](http://releases.llvm.org/download.html#9.0.0). 2. [**CUDA**](https://developer.nvidia.com/cuda-downloads) of at least version [7.0](https://developer.nvidia.com/cuda-toolkit-70), the latest supported version is [**10.1 Update 2**](https://developer.nvidia.com/cuda-downloads). | **LLVM release version** | **CUDA latest supported version** | **Windows** | **Linux** | |:----------------------------------------------------------:|:-------------------------------------------------------------------:|:------------:|:---------:| | [3.8.0](http://releases.llvm.org/download.html#3.8.0) | [7.5](https://developer.nvidia.com/cuda-75-downloads-archive) | + | + | | [3.8.1](http://releases.llvm.org/download.html#3.8.1) | [7.5](https://developer.nvidia.com/cuda-75-downloads-archive) | + | + | | [3.9.0](http://releases.llvm.org/download.html#3.9.0) | [7.5](https://developer.nvidia.com/cuda-75-downloads-archive) | + | + | | [3.9.1](http://releases.llvm.org/download.html#3.9.1) | [7.5](https://developer.nvidia.com/cuda-75-downloads-archive) | + | + | | [4.0.0](http://releases.llvm.org/download.html#4.0.0) | [8.0](https://developer.nvidia.com/cuda-80-ga2-download-archive) | + | + | | [4.0.1](http://releases.llvm.org/download.html#4.0.1) | [8.0](https://developer.nvidia.com/cuda-80-ga2-download-archive) | + | + | | [5.0.0](http://releases.llvm.org/download.html#5.0.0) | [8.0](https://developer.nvidia.com/cuda-80-ga2-download-archive) | + | + | | [5.0.1](http://releases.llvm.org/download.html#5.0.1) | [8.0](https://developer.nvidia.com/cuda-80-ga2-download-archive) | + | + | | [5.0.2](http://releases.llvm.org/download.html#5.0.2) | [8.0](https://developer.nvidia.com/cuda-80-ga2-download-archive) | + | + | | [6.0.0](http://releases.llvm.org/download.html#6.0.0) | [9.0](https://developer.nvidia.com/cuda-90-download-archive) | + | + | | [6.0.1](http://releases.llvm.org/download.html#6.0.1) | [9.0](https://developer.nvidia.com/cuda-90-download-archive) | + | + | | [7.0.0](http://releases.llvm.org/download.html#7.0.0) | [9.2](https://developer.nvidia.com/cuda-92-download-archive) | -
not working due to
the clang's bug [38811](https://bugs.llvm.org/show_bug.cgi?id=38811)
+
[patch](patches/patch_for_clang_7.0.0_bug_38811.zip)*
| -
not working due to
the clang's bug [36384](https://bugs.llvm.org/show_bug.cgi?id=36384) | | [7.0.1](http://releases.llvm.org/download.html#7.0.1) | [9.2](https://developer.nvidia.com/cuda-92-download-archive) | -
not working due to
the clang's bug [38811](https://bugs.llvm.org/show_bug.cgi?id=38811)
+
[patch](patches/patch_for_clang_7.0.1_bug_38811.zip)*
| -
not working due to
the clang's bug [36384](https://bugs.llvm.org/show_bug.cgi?id=36384) | | [7.1.0](http://releases.llvm.org/download.html#7.1.0) | [9.2](https://developer.nvidia.com/cuda-92-download-archive) | -
not working due to
the clang's bug [38811](https://bugs.llvm.org/show_bug.cgi?id=38811)
+
[patch](patches/patch_for_clang_7.1.0_bug_38811.zip)*
| -
not working due to
the clang's bug [36384](https://bugs.llvm.org/show_bug.cgi?id=36384) | | [8.0.0](http://releases.llvm.org/download.html#8.0.0) | [10.0](https://developer.nvidia.com/cuda-10.0-download-archive) | -
not working due to
the clang's bug [38811](https://bugs.llvm.org/show_bug.cgi?id=38811)
+
[patch](patches/patch_for_clang_8.0.0_bug_38811.zip)*
| + | | [8.0.1](http://releases.llvm.org/download.html#8.0.1) | [10.0](https://developer.nvidia.com/cuda-10.0-download-archive) | -
not working due to
the clang's bug [38811](https://bugs.llvm.org/show_bug.cgi?id=38811)
+
[patch](patches/patch_for_clang_8.0.1_bug_38811.zip)*
| + | | [**9.0.0**](http://releases.llvm.org/download.html#9.0.0) | [**10.1**](https://developer.nvidia.com/cuda-downloads) | +
**LATEST STABLE RELEASE** | +
**LATEST STABLE RELEASE** | `*` Download the patch and unpack it into your LLVM distributive directory; a few header files will be overwritten; rebuilding of LLVM is not needed. In most cases, you can get a suitable version of LLVM+CLANG with your package manager. Failing that or having multiple versions of LLVM, you can [download a release archive](http://releases.llvm.org/), build or install it, and set [CMAKE_PREFIX_PATH](https://cmake.org/cmake/help/v3.5/variable/CMAKE_PREFIX_PATH.html) so `cmake` can find it; for instance: `-DCMAKE_PREFIX_PATH=f:\LLVM\9.0.0\dist` ## Build and install ### Build Assuming this repository is at `./HIP`: ```shell cd hipify-clang mkdir build dist cd build cmake \ -DCMAKE_INSTALL_PREFIX=../dist \ -DCMAKE_BUILD_TYPE=Release \ .. make -j install ``` On Windows, the following option should be specified for `cmake` at first place: `-G "Visual Studio 16 2019 Win64"`; the generated `hipify-clang.sln` should be built by `Visual Studio 15 2017` instead of `make.` Debug build type `-DCMAKE_BUILD_TYPE=Debug` is also supported and tested; `LLVM+CLANG` should be built in `Debug` mode as well. 64-bit build mode (`-Thost=x64` on Windows) is also supported; `LLVM+CLANG` should be built in 64-bit mode as well. The binary can then be found at `./dist/bin/hipify-clang`. ### Testing `hipify-clang` has unit tests using LLVM [`lit`](https://llvm.org/docs/CommandGuide/lit.html)/[`FileCheck`](https://llvm.org/docs/CommandGuide/FileCheck.html). **LLVM+CLANG should be built from sources, pre-built binaries are not exhaustive for testing.** To run it: 1. download [`LLVM`](http://releases.llvm.org/9.0.0/llvm-9.0.0.src.tar.xz)+[`CLANG`](http://releases.llvm.org/9.0.0/cfe-9.0.0.src.tar.xz) sources; 2. build [`LLVM+CLANG`](http://llvm.org/docs/CMake.html): ```shell cd llvm mkdir build dist cd build ``` - **Linux**: ```shell cmake \ -DCMAKE_INSTALL_PREFIX=../dist \ -DLLVM_SOURCE_DIR=../llvm \ -DLLVM_TARGETS_TO_BUILD="X86;NVPTX" \ -DCMAKE_BUILD_TYPE=Release \ ../llvm make -j install ``` - **Windows**: ```shell cmake \ -G "Visual Studio 16 2019" \ -A x64 \ -DCMAKE_INSTALL_PREFIX=../dist \ -DLLVM_SOURCE_DIR=../llvm \ -DLLVM_TARGETS_TO_BUILD="X86;NVPTX" \ -DCMAKE_BUILD_TYPE=Release \ -Thost=x64 \ ../llvm ```                 Run `Visual Studio 16 2019`, open the generated `LLVM.sln`, build all, build project `INSTALL`. 3. Ensure [`CUDA`](https://developer.nvidia.com/cuda-toolkit-archive) of minimum version 7.0 is installed. * Having multiple CUDA installations to choose a particular version the `DCUDA_TOOLKIT_ROOT_DIR` option should be specified: - ***Linux***: `-DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-10.1` - ***Windows***: `-DCUDA_TOOLKIT_ROOT_DIR="c:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v10.1"` `-DCUDA_SDK_ROOT_DIR="c:/ProgramData/NVIDIA Corporation/CUDA Samples/v10.1"` 4. Ensure [`cuDNN`](https://developer.nvidia.com/rdp/cudnn-archive) of the version corresponding to CUDA's version is installed. * Path to cuDNN should be specified by the `CUDA_DNN_ROOT_DIR` option: - ***Linux***: `-DCUDA_DNN_ROOT_DIR=/srv/CUDNN/cudnn-10.1-v7.6.5.32` - ***Windows***: `-DCUDA_DNN_ROOT_DIR=f:/CUDNN/cudnn-10.1-windows10-x64-v7.6.5.32` 5. Ensure [`CUB`](https://github.com/NVlabs/cub) of the version corresponding to CUDA's version is installed. * Path to CUB should be specified by the `CUDA_CUB_ROOT_DIR` option: - ***Linux***: `-DCUDA_CUB_ROOT_DIR=/srv/git/CUB` - ***Windows***: `-DCUDA_CUB_ROOT_DIR=f:/GIT/cub` 5. Ensure [`python`](https://www.python.org/downloads) of minimum required version 2.7 is installed. 6. Ensure `lit` and `FileCheck` are installed - these are distributed with LLVM. * Install `lit` into `python`: - ***Linux***: `python /srv/git/LLVM/9.0.0/llvm/utils/lit/setup.py install` - ***Windows***: `python f:/LLVM/9.0.0/llvm/utils/lit/setup.py install` * Starting with LLVM 6.0.1 path to `llvm-lit` python script should be specified by the `LLVM_EXTERNAL_LIT` option: - ***Linux***: `-DLLVM_EXTERNAL_LIT=/srv/git/LLVM/9.0.0/build/bin/llvm-lit` - ***Windows***: `-DLLVM_EXTERNAL_LIT=f:/LLVM/9.0.0/build/Release/bin/llvm-lit.py` * `FileCheck`: - ***Linux***: copy from `/srv/git/LLVM/9.0.0/build/bin/` to `CMAKE_INSTALL_PREFIX/dist/bin` - ***Windows***: copy from `f:/LLVM/9.0.0/build/Release/bin` to `CMAKE_INSTALL_PREFIX/dist/bin` - Or specify the path to `FileCheck` in `CMAKE_INSTALL_PREFIX` option 7. Set `HIPIFY_CLANG_TESTS` option turned on: `-DHIPIFY_CLANG_TESTS=1`. 8. Run `cmake`: * [***Linux***](#linux) * [***Windows***](#windows) 9. Run tests: - ***Linux***: `make test-hipify`. - ***Windows***: run `Visual Studio 16 2019`, open the generated `hipify-clang.sln`, build project `test-hipify`. ### Linux On Linux the following configurations are tested: Ubuntu 14: LLVM 5.0.0 - 6.0.1, CUDA 7.0 - 9.0, cudnn-5.0.5 - cudnn-7.6.5.32 Ubuntu 16-18: LLVM 8.0.0 - 9.0.0, CUDA 8.0 - 10.1, cudnn-5.1.10 - cudnn-7.6.5.32 Minimum build system requirements for the above configurations: Python 2.7, cmake 3.5.1, GNU C/C++ 5.4.0. Here is an example of building `hipify-clang` with testing support on `Ubuntu 16.04`: ```shell cmake -DHIPIFY_CLANG_TESTS=1 \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_INSTALL_PREFIX=../dist \ -DCMAKE_PREFIX_PATH=/srv/git/LLVM/9.0.0/dist \ -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-10.1 \ -DCUDA_DNN_ROOT_DIR=/srv/CUDNN/cudnn-10.1-v7.6.5.32 \ -DCUDA_CUB_ROOT_DIR=/srv/git/CUB \ -DLLVM_EXTERNAL_LIT=/srv/git/LLVM/9.0.0/build/bin/llvm-lit \ .. ``` *A corresponding successful output:* ```shell -- The C compiler identification is GNU 7.4.0 -- The CXX compiler identification is GNU 7.4.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Found LLVM 9.0.0: -- - CMake module path: /srv/git/LLVM/9.0.0/dist/lib/cmake/llvm -- - Include path : /srv/git/LLVM/9.0.0/dist/include -- - Binary path : /srv/git/LLVM/9.0.0/dist/bin -- Linker detection: GNU ld -- Found PythonInterp: /usr/bin/python2.7 (found suitable version "2.7.12", minimum required is "2.7") -- Found lit: /usr/local/bin/lit -- Found FileCheck: /srv/git/LLVM/9.0.0/dist/bin/FileCheck -- Looking for pthread.h -- Looking for pthread.h - found -- Looking for pthread_create -- Looking for pthread_create - not found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE -- Found CUDA: /usr/local/cuda-10.1 (found version "10.1") -- Configuring done -- Generating done -- Build files have been written to: /srv/git/HIP/hipify-clang/build ``` ```shell make test-hipify ``` *A corresponding successful output:* ```shell Running HIPify regression tests ======================================== CUDA 10.1 - will be used for testing LLVM 9.0.0 - will be used for testing x86_64 - Platform architecture Linux 5.2.0 - Platform OS 64 - hipify-clang binary bitness 64 - python 2.7.12 binary bitness ======================================== -- Testing: 67 tests, 12 threads -- PASS: hipify :: unit_tests/casts/reinterpret_cast.cu (1 of 67) PASS: hipify :: unit_tests/device/math_functions.cu (2 of 67) PASS: hipify :: unit_tests/device/atomics.cu (3 of 67) PASS: hipify :: unit_tests/device/device_symbols.cu (4 of 67) PASS: hipify :: unit_tests/headers/headers_test_01.cu (5 of 67) PASS: hipify :: unit_tests/headers/headers_test_02.cu (6 of 67) PASS: hipify :: unit_tests/headers/headers_test_03.cu (7 of 67) PASS: hipify :: unit_tests/headers/headers_test_05.cu (8 of 67) PASS: hipify :: unit_tests/headers/headers_test_04.cu (9 of 67) PASS: hipify :: unit_tests/headers/headers_test_06.cu (10 of 67) PASS: hipify :: unit_tests/headers/headers_test_07.cu (11 of 67) PASS: hipify :: unit_tests/headers/headers_test_10.cu (12 of 67) PASS: hipify :: unit_tests/headers/headers_test_11.cu (13 of 67) PASS: hipify :: unit_tests/headers/headers_test_08.cu (14 of 67) PASS: hipify :: unit_tests/kernel_launch/kernel_launch_01.cu (15 of 67) PASS: hipify :: unit_tests/headers/headers_test_09.cu (16 of 67) PASS: hipify :: unit_tests/libraries/CAFFE2/caffe2_02.cu (17 of 67) PASS: hipify :: unit_tests/libraries/CAFFE2/caffe2_01.cu (18 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/cublas_0_based_indexing.cu (19 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/cublas_1_based_indexing.cu (20 of 67) PASS: hipify :: unit_tests/libraries/CUB/cub_03.cu (21 of 67) PASS: hipify :: unit_tests/libraries/CUB/cub_01.cu (22 of 67) PASS: hipify :: unit_tests/libraries/CUB/cub_02.cu (23 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/rocBLAS/cublas_0_based_indexing_rocblas.cu (24 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/cublas_sgemm_matrix_multiplication.cu (25 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/rocBLAS/cublas_1_based_indexing_rocblas.cu (26 of 67) PASS: hipify :: unit_tests/libraries/cuBLAS/rocBLAS/cublas_sgemm_matrix_multiplication_rocblas.cu (27 of 67) PASS: hipify :: unit_tests/libraries/cuComplex/cuComplex_Julia.cu (28 of 67) PASS: hipify :: unit_tests/libraries/cuFFT/simple_cufft.cu (29 of 67) PASS: hipify :: unit_tests/libraries/cuDNN/cudnn_softmax.cu (30 of 67) PASS: hipify :: unit_tests/libraries/cuDNN/cudnn_convolution_forward.cu (31 of 67) PASS: hipify :: unit_tests/libraries/cuRAND/poisson_api_example.cu (32 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_01.cu (33 of 67) PASS: hipify :: unit_tests/libraries/cuRAND/benchmark_curand_generate.cpp (34 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_02.cu (35 of 67) PASS: hipify :: unit_tests/libraries/cuRAND/benchmark_curand_kernel.cpp (36 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_03.cu (37 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_04.cu (38 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_05.cu (39 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_07.cu (40 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_06.cu (41 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_08.cu (42 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_09.cu (43 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_11.cu (44 of 67) PASS: hipify :: unit_tests/namespace/ns_kernel_launch.cu (45 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_10.cu (46 of 67) PASS: hipify :: unit_tests/libraries/cuSPARSE/cuSPARSE_12.cu (47 of 67) PASS: hipify :: unit_tests/pp/pp_if_else_conditionals.cu (48 of 67) PASS: hipify :: unit_tests/pp/pp_if_else_conditionals_01.cu (49 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/11_texture_driver/tex2dKernel.cpp (50 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/0_MatrixTranspose/MatrixTranspose.cpp (51 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/11_texture_driver/texture2dDrv.cpp (52 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/13_occupancy/occupancy.cpp (53 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/1_hipEvent/hipEvent.cpp (54 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/2_Profiler/Profiler.cpp (55 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/7_streams/stream.cpp (56 of 67) PASS: hipify :: unit_tests/samples/2_Cookbook/8_peer2peer/peer2peer.cpp (57 of 67) PASS: hipify :: unit_tests/samples/MallocManaged.cpp (58 of 67) PASS: hipify :: unit_tests/samples/allocators.cu (59 of 67) PASS: hipify :: unit_tests/samples/coalescing.cu (60 of 67) PASS: hipify :: unit_tests/samples/dynamic_shared_memory.cu (61 of 67) PASS: hipify :: unit_tests/samples/axpy.cu (62 of 67) PASS: hipify :: unit_tests/samples/intro.cu (63 of 67) PASS: hipify :: unit_tests/samples/cudaRegister.cu (64 of 67) PASS: hipify :: unit_tests/samples/square.cu (65 of 67) PASS: hipify :: unit_tests/samples/static_shared_memory.cu (66 of 67) PASS: hipify :: unit_tests/samples/vec_add.cu (67 of 67) Testing Time: 3.07s Expected Passes : 67 [100%] Built target test-hipify ``` ### Windows On Windows 10 the following configurations are tested: LLVM 5.0.0 - 5.0.2, CUDA 8.0, cudnn 5.1.10 - 7.1.4.18 LLVM 6.0.0 - 6.0.1, CUDA 9.0, cudnn 7.0.5.15 - 7.6.5.32 LLVM 7.0.0 - 9.0.0, CUDA 7.5 - 10.1, cudnn 7.0.5.15 - 7.6.5.32 Build system requirements for the latest configuration LLVM 9.0.0/CUDA 10.1 Update 2: Python 3.6.0 - 3.8.0, cmake 3.5.1 - 3.16.0, Visual Studio 2017 (15.5.2) - 2019 (16.3.8). Here is an example of building `hipify-clang` with testing support on `Windows 10` by `Visual Studio 16 2019`: ```shell cmake -G "Visual Studio 16 2019" \ -A x64 \ -DHIPIFY_CLANG_TESTS=1 \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_INSTALL_PREFIX=../dist \ -DCMAKE_PREFIX_PATH=f:/LLVM/9.0.0/dist \ -DCUDA_TOOLKIT_ROOT_DIR="c:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v10.1" \ -DCUDA_SDK_ROOT_DIR="c:/ProgramData/NVIDIA Corporation/CUDA Samples/v10.1" \ -DCUDA_DNN_ROOT_DIR=f:/CUDNN/cudnn-10.1-windows10-x64-v7.6.5.32 \ -DCUDA_CUB_ROOT_DIR=f:/GIT/cub \ -DLLVM_EXTERNAL_LIT=f:/LLVM/9.0.0/build/Release/bin/llvm-lit.py \ -Thost=x64 .. ``` *A corresponding successful output:* ```shell -- Found LLVM 9.0.0: -- - CMake module path: F:/LLVM/9.0.0/dist/lib/cmake/llvm -- - Include path : F:/LLVM/9.0.0/dist/include -- - Binary path : F:/LLVM/9.0.0/dist/bin -- Found PythonInterp: C:/Program Files/Python38/python.exe (found suitable version "3.8.0", minimum required is "3.6") -- Found lit: C:/Program Files/Python36/Scripts/lit.exe -- Found FileCheck: F:/LLVM/9.0.0/dist/bin/FileCheck.exe -- Found CUDA: C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v10.1 (found version "10.1") -- Configuring done -- Generating done -- Build files have been written to: f:/HIP/hipify-clang/build ``` ## Running and using hipify-clang To process a file, `hipify-clang` needs access to the same headers that would be needed to compile it with clang. For example: ```shell ./hipify-clang square.cu --cuda-path=/usr/local/cuda-10.1 -I /usr/local/cuda-10.1/samples/common/inc ``` `hipify-clang` arguments are given first, followed by a separator, and then the arguments you'd pass to `clang` if you were compiling the input file. The [Clang manual for compiling CUDA](https://llvm.org/docs/CompileCudaWithLLVM.html#compiling-cuda-code) may be useful. For a list of `hipify-clang` options, run `hipify-clang --help`. ### hipify-perl To produce a Perl-based script `hipify-perl`, run `hipify-clang --perl`. The `hipify-perl` script, unlike the `hipify-clang`, being based on regular expressions, and not on an abstract syntax tree, has several gaps: 1. macros expansion; 2. namespaces: - redefines of CUDA entities in user namespaces; - using directive; 3. templates (some cases); 4. device/host function calls distinguishing; 5. header files correct injection; 6. complicated argument lists parsing. Nonetheless, `hipify-perl` is easy in use and doesn't check the input source CUDA code for correctness. ## Disclaimer The information contained herein is for informational purposes only, and is subject to change without notice. While every precaution has been taken in the preparation of this document, it may contain technical inaccuracies, omissions and typographical errors, and AMD is under no obligation to update or otherwise correct this information. Advanced Micro Devices, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this document, and assumes no liability of any kind, including the implied warranties of noninfringement, merchantability or fitness for particular purposes, with respect to the operation or use of AMD hardware, software or other products described herein. No license, including implied or arising by estoppel, to any intellectual property rights is granted by this document. Terms and limitations applicable to the purchase or use of AMD's products are as set forth in a signed agreement between the parties or in AMD's Standard Terms and Conditions of Sale. AMD, the AMD Arrow logo, and combinations thereof are trademarks of Advanced Micro Devices, Inc. Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies. Copyright (c) 2014-2019 Advanced Micro Devices, Inc. All rights reserved.