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Unblock Visual Studio ARM64EC target builds. Disable inclusion of SSE headers for non x86 targets. (#2631)

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- Use `CMAKE_VS_PLATFORM_NAME` in tandem with `CMAKE_SYSTEM_PROCESSOR`
to
  set `CLConform_TARGET_ARCH`. `CMAKE_VS_PLATFORM_NAME` provides cross
  compilation information that `CMAKE_SYSTEM_PROCESSOR` lacks, like
  targeting `ARM64EC`.

- Curb the inclusion of `SSE` headers when targeting non-x86 targets.
This commit is contained in:
Jose Lopez
2026-03-17 16:27:02 +00:00
committed by GitHub
parent 4e3f16b2b9
commit 0338fd9d39
1 changed files with 10 additions and 5 deletions
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15
CMakeLists.txt
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@@ -81,10 +81,11 @@ include(CheckFunctionExists)
include(CheckIncludeFiles)
include(CheckCXXCompilerFlag)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)")
set(CLConform_TARGET_ARCH ARM)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*|arm64.*|ARM64.*)")
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*|arm64.*|ARM64.*)" OR
CMAKE_VS_PLATFORM_NAME MATCHES "^(aarch64.*|AARCH64.*|arm64.*|ARM64.*)")
set(CLConform_TARGET_ARCH ARM64)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)")
set(CLConform_TARGET_ARCH ARM)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")
set(CLConform_TARGET_ARCH x86_64)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*")
@@ -141,8 +142,12 @@ if(CMAKE_COMPILER_IS_GNUCC OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "(Apple)?Clang"
add_cxx_flag_if_supported(-frounding-math)
endif()
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D__SSE__")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D__SSE__")
# Curb the inclusion of SSE headers when compiling for non x86 targets
if(${CLConform_TARGET_ARCH} STREQUAL "x86_64" OR ${CLConform_TARGET_ARCH}
STREQUAL "x86")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D__SSE__")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D__SSE__")
endif()
endif()
# Set a module's COMPILE_FLAGS if using gcc or clang.