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[SYCL][CMAKE] Only apply extra warnings to SYCL RT #19306

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[SYCL][CMAKE] Only apply extra warnings to SYCL RT #19306

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f4c3563
[SYCL][CMAKE] Only apply extra warnings to SYCL RT
AlexeySachkov Jul 4, 2025
c6e2d2f
Drop commented lines, move the code a little bit
AlexeySachkov Jul 7, 2025
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36 changes: 15 additions & 21 deletions llvm/cmake/modules/AddSecurityFlags.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -51,27 +51,21 @@ endif()

macro(append_common_extra_security_flags)
# Compiler Warnings and Error Detection
# Note: in intel/llvm we build both linux and win with --ci-defaults.
# This flag also enables -Werror or /WX.
if(is_gcc
OR is_clang
OR (is_icpx AND MSVC))
add_compile_option_ext("-Wall" WALL)
add_compile_option_ext("-Wextra" WEXTRA)
elseif(is_icpx)
add_compile_option_ext("/Wall" WALL)
elseif(is_msvc)
add_compile_option_ext("/W4" WALL)
endif()

if(CMAKE_BUILD_TYPE MATCHES "Release")
if(is_gcc
OR is_clang
OR (is_icpx AND MSVC))
add_compile_option_ext("-Wconversion" WCONVERSION)
add_compile_option_ext("-Wimplicit-fallthrough" WIMPLICITFALLTHROUGH)
endif()
endif()
# Any flags applied here will be applied globally to all LLVM sub-projects.
# Since LLVM itself is not warning-free, enabling any extra warnings globally
# will most likely cause -Werror build to fail. Therefore, any necessary
# warnings should be enabled on a per-project basis.
# Things that we care about:
# - sycl
# - sycl-jit
# - unified-runtime
# - xpti
# - xptifw
# - SYCL-specific passes in LLVM (SYCLLowerIR, sycl-post-link, etc.)
# - SYCL-specific files in clang (SemaSYCL.cpp, etc.)
# The list above may not be complete and it is given for reference in case
# someone needs to enable more flags. There is also no guarantee that all
# sub-projects above already use all necessary flags uniformly.

# Control Flow Integrity
if(is_gcc
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20 changes: 20 additions & 0 deletions sycl/source/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,26 @@ if (SYCL_ENABLE_XPTI_TRACING)
include_directories(${LLVM_EXTERNAL_XPTI_SOURCE_DIR}/include)
endif()

if(is_gcc
OR is_clang
OR (is_icpx AND MSVC))
add_compile_option_ext("-Wall" WALL)
add_compile_option_ext("-Wextra" WEXTRA)
elseif(is_icpx)
add_compile_option_ext("/Wall" WALL)
elseif(is_msvc)
add_compile_option_ext("/W4" WALL)
endif()

if(CMAKE_BUILD_TYPE MATCHES "Release")
if(is_gcc
OR is_clang
OR (is_icpx AND MSVC))
add_compile_option_ext("-Wconversion" WCONVERSION)
add_compile_option_ext("-Wimplicit-fallthrough" WIMPLICITFALLTHROUGH)
endif()
endif()

function(add_sycl_rt_library LIB_NAME LIB_OBJ_NAME)
# Add an optional argument so we can get the library name to
# link with for Windows Debug version
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