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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# determine the compiler to use for ISPC programs
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompiler.cmake)
if( NOT (("${CMAKE_GENERATOR}" MATCHES "Make") OR ("${CMAKE_GENERATOR}" MATCHES "Ninja")) )
message(FATAL_ERROR "ISPC language not currently supported by \"${CMAKE_GENERATOR}\" generator")
endif()
# Load system-specific compiler preferences for this language.
include(Platform/${CMAKE_SYSTEM_NAME}-Determine-ISPC OPTIONAL)
include(Platform/${CMAKE_SYSTEM_NAME}-ISPC OPTIONAL)
if(NOT CMAKE_ISPC_COMPILER_NAMES)
set(CMAKE_ISPC_COMPILER_NAMES ispc)
endif()
if(NOT CMAKE_ISPC_COMPILER)
set(CMAKE_ISPC_COMPILER_INIT NOTFOUND)
# prefer the environment variable CC
if(NOT $ENV{ISPC} STREQUAL "")
get_filename_component(CMAKE_ISPC_COMPILER_INIT $ENV{ISPC} PROGRAM PROGRAM_ARGS CMAKE_ISPC_FLAGS_ENV_INIT)
if(CMAKE_ISPC_FLAGS_ENV_INIT)
set(CMAKE_ISPC_COMPILER_ARG1 "${CMAKE_ISPC_FLAGS_ENV_INIT}" CACHE STRING "First argument to ISPC compiler")
endif()
if(NOT EXISTS ${CMAKE_ISPC_COMPILER_INIT})
message(FATAL_ERROR "Could not find compiler set in environment variable ISPC:\n$ENV{ISPC}.")
endif()
endif()
# next try prefer the compiler specified by the generator
if(CMAKE_GENERATOR_ISPC)
if(NOT CMAKE_ISPC_COMPILER_INIT)
set(CMAKE_ISPC_COMPILER_INIT ${CMAKE_GENERATOR_ISPC})
endif()
endif()
# finally list compilers to try
if(NOT CMAKE_ISPC_COMPILER_INIT)
set(CMAKE_ISPC_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}ispc ispc)
endif()
# Find the compiler.
_cmake_find_compiler(ISPC)
else()
_cmake_find_compiler_path(ISPC)
endif()
mark_as_advanced(CMAKE_ISPC_COMPILER)
if(NOT CMAKE_ISPC_COMPILER_ID_RUN)
set(CMAKE_ISPC_COMPILER_ID_RUN 1)
# Try to identify the compiler.
set(CMAKE_ISPC_COMPILER_ID)
set(CMAKE_ISPC_PLATFORM_ID)
set(CMAKE_ISPC_COMPILER_ID_TEST_FLAGS_FIRST
# setup logic to make sure ISPC outputs a file
"-o cmake_ispc_output"
)
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
CMAKE_DETERMINE_COMPILER_ID(ISPC ISPCFLAGS CMakeISPCCompilerId.ispc)
_cmake_find_compiler_sysroot(ISPC)
endif()
if (NOT _CMAKE_TOOLCHAIN_LOCATION)
get_filename_component(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_ISPC_COMPILER}" PATH)
endif ()
set(_CMAKE_PROCESSING_LANGUAGE "ISPC")
include(CMakeFindBinUtils)
include(Compiler/${CMAKE_ISPC_COMPILER_ID}-FindBinUtils OPTIONAL)
unset(_CMAKE_PROCESSING_LANGUAGE)
if(CMAKE_ISPC_COMPILER_ID_VENDOR_MATCH)
set(_SET_CMAKE_ISPC_COMPILER_ID_VENDOR_MATCH
"set(CMAKE_ISPC_COMPILER_ID_VENDOR_MATCH [==[${CMAKE_ISPC_COMPILER_ID_VENDOR_MATCH}]==])")
else()
set(_SET_CMAKE_ISPC_COMPILER_ID_VENDOR_MATCH "")
endif()
# configure variables set in this file for fast reload later on
configure_file(${CMAKE_ROOT}/Modules/CMakeISPCCompiler.cmake.in
${CMAKE_PLATFORM_INFO_DIR}/CMakeISPCCompiler.cmake @ONLY)
set(CMAKE_ISPC_COMPILER_ENV_VAR "ISPC")
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