Fix toolchain-windows.cmake for HIP SDK (#404) (#405)

* HIP SDK compatibility

* Update cmake_path function in rmake.py

* Fix typo

* Updating copyright year

* Removing unnecessary cmake compiler flags

* Removing old comments, cleanup

* Take python3 by default

toolchain-windows.cmake

@@ -14,39 +14,25 @@ else()
   set(rocm_bin "C:/hip/bin")
 endif()
 
-#set(CMAKE_CXX_COMPILER "${rocm_bin}/hipcc.bat")
-#set(CMAKE_C_COMPILER "${rocm_bin}/hipcc.bat")
 set(CMAKE_CXX_COMPILER "${rocm_bin}/clang++.exe")
 set(CMAKE_C_COMPILER "${rocm_bin}/clang.exe")
 
-#set(CMAKE_CXX_LINKER "${rocm_bin}/hipcc.bat" )
-
-# TODO remove, just to speed up slow cmake
-set(CMAKE_C_COMPILER_WORKS 1)
-set(CMAKE_CXX_COMPILER_WORKS 1)
-#
+if (NOT python)
+  set(python "python3") # take default for windows
+endif()
 
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -IC:/hip/include -IC:/hip/lib/clang/12.0.0 -DWIN32 -D_CRT_SECURE_NO_WARNINGS")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I${HIP_DIR}/include -DWIN32 -D_CRT_SECURE_NO_WARNINGS")
+# our usage flags
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DWIN32 -D_CRT_SECURE_NO_WARNINGS")
 
 # flags for clang direct use
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -fms-extensions -fms-compatibility")
 # -Wno-ignored-attributes to avoid warning: __declspec attribute 'dllexport' is not supported [-Wignored-attributes] which is used by msvc compiler
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -fms-extensions -fms-compatibility -Wno-ignored-attributes")
 
-# flags for clang direct use with hip
-# -x hip causes linker error
-#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -x hip -IC:/hip/include/hip -D__HIP_PLATFORM_HCC__ -D__HIP_ROCclr__ -DHIP_CLANG_HCC_COMPAT_MODE=1")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I${HIP_DIR}/include/hip -D__HIP_PLATFORM_HCC__ -D__HIP_ROCclr__ -DHIP_CLANG_HCC_COMPAT_MODE=1")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D__HIP_PLATFORM_AMD__ -D__HIP_ROCclr__ -DHIP_CLANG_HCC_COMPAT_MODE=1")
 
 if (DEFINED ENV{VCPKG_PATH})
   file(TO_CMAKE_PATH "$ENV{VCPKG_PATH}" VCPKG_PATH)
 else()
   set(VCPKG_PATH "C:/github/vcpkg")
 endif()
 include("${VCPKG_PATH}/scripts/buildsystems/vcpkg.cmake")
-# set(GTEST_DIR "C:/rocm/Utils/GTestMSVC")
-# set(GTEST_INCLUDE_DIR "${GTEST_DIR}/include")
-# set(GTEST_LIBRARY "${GTEST_DIR}/lib/Release/gtest.lib")
-# set(GTEST_MAIN_LIBRARY "${GTEST_DIR}/lib/Release/gtest_main.lib")
-# set(GTEST_LIBRARIES "${GTEST_DIR}/lib/Release/gtest.lib;${GTEST_DIR}/lib/Release/gtest_main.lib")