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default to clang for faster CPU performance #666

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merged 1 commit into from
Nov 26, 2024
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default to clang for faster CPU performance #666

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17 changes: 16 additions & 1 deletion icicle/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,21 @@ project(icicle)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# Select the C++ compiler
find_program(CLANG_COMPILER clang++)
find_program(CLANG_C_COMPILER clang)

if(CLANG_COMPILER AND CLANG_C_COMPILER)
set(CMAKE_CXX_COMPILER ${CLANG_COMPILER} CACHE STRING "Clang++ compiler" FORCE)
set(CMAKE_C_COMPILER ${CLANG_C_COMPILER} CACHE STRING "Clang compiler" FORCE)
message(STATUS "Using Clang++ as the C++ compiler: ${CLANG_COMPILER}")
message(STATUS "Using Clang as the C compiler: ${CLANG_C_COMPILER}")
else()
message(WARNING "ICICLE CPU works best with clang++ and clang. Defaulting to ${CLANG_COMPILER}")
endif()



include(cmake/field.cmake)
include(cmake/curve.cmake)
include(cmake/hash.cmake)
Expand All @@ -19,7 +34,7 @@ endif()
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")

# Prevent build if both SANITIZE and CUDA_BACKEND are enabled
if(SANITIZE AND CUDA_BACKEND)
if(SANITIZE AND CUDA_BACKEND)
message(FATAL_ERROR "Address sanitizer and Cuda cannot be enabled at the same time.")
endif()

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