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Clang: Add MSVC frontend detection for the ASM compiler

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Fixes: #22495
This commit is contained in:
Thomas Bernard
2021-08-25 22:38:25 +02:00
committed by Brad King
parent ed9abd9977
commit c9c79dde41
1 changed files with 18 additions and 1 deletions
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19
Modules/CMakeDetermineASMCompiler.cmake
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@@ -125,6 +125,7 @@ if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
include(CMakeDetermineCompilerId)
set(userflags)
CMAKE_DETERMINE_COMPILER_ID_VENDOR(ASM${ASM_DIALECT} "${userflags}")
set(_variant "")
if("x${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}" STREQUAL "xIAR")
# primary necessary to detect architecture, so the right archiver and linker can be picked
# eg. "IAR Assembler V8.10.1.12857/W32 for ARM" or "IAR Assembler V4.11.1.4666 for Renesas RX"
@@ -137,6 +138,19 @@ if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
if(_all_compileid_matches)
list(GET _all_compileid_matches "-1" CMAKE_ASM${ASM_DIALECT}_COMPILER_ARCHITECTURE_ID)
endif()
elseif("x${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}" STREQUAL "xClang")
# Test whether an MSVC-like command-line option works.
execute_process(COMMAND ${CMAKE_ASM${ASM_DIALECT}_COMPILER} -?
OUTPUT_VARIABLE _clang_output
ERROR_VARIABLE _clang_output
RESULT_VARIABLE _clang_result)
if(_clang_result EQUAL 0)
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_FRONTEND_VARIANT "MSVC")
set(CMAKE_ASM${ASM_DIALECT}_SIMULATE_ID MSVC)
else()
set(CMAKE_ASM${ASM_DIALECT}_COMPILER_FRONTEND_VARIANT "GNU")
endif()
set(_variant " with ${CMAKE_ASM${ASM_DIALECT}_COMPILER_FRONTEND_VARIANT}-like command-line")
endif()
_cmake_find_compiler_sysroot(ASM${ASM_DIALECT})
@@ -144,6 +158,8 @@ if(NOT CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
unset(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID_OUTPUT)
unset(_all_compileid_matches)
unset(_compileid)
unset(_clang_result)
unset(_clang_output)
endif()
if(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
@@ -157,9 +173,10 @@ if(CMAKE_ASM${ASM_DIALECT}_COMPILER_ID)
else()
set(_archid "")
endif()
message(STATUS "The ASM${ASM_DIALECT} compiler identification is ${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}${_archid}${_version}")
message(STATUS "The ASM${ASM_DIALECT} compiler identification is ${CMAKE_ASM${ASM_DIALECT}_COMPILER_ID}${_archid}${_version}${_variant}")
unset(_archid)
unset(_version)
unset(_variant)
else()
message(STATUS "The ASM${ASM_DIALECT} compiler identification is unknown")
endif()