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| author | Brad King <brad.king@kitware.com> | 2023-09-28 23:36:56 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2023-10-03 13:15:24 (GMT) |
| commit | 26bf32cdc67271547ca0b0d38872f8f23a90d191 (patch) | |
| tree | cb7fff6bad7898d9ae422078394893d35136db25 /Modules/CMakeDetermineCompilerId.cmake | |
| parent | e9af7b968756e72553296ecdcde6f36606a0babf (diff) | |
| download | CMake-26bf32cdc67271547ca0b0d38872f8f23a90d191.zip CMake-26bf32cdc67271547ca0b0d38872f8f23a90d191.tar.gz CMake-26bf32cdc67271547ca0b0d38872f8f23a90d191.tar.bz2 | |
LLVMFlang: Add support for targeting MSVC ABI on Windows
The compiler does not yet support everything needed to integrate well
with the MSVC ABI, in particular for runtime library selection and debug
format selection. Document them in FIXME comments and leave this
support undocumented by CMake for now.
Fixes: #24840
Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Diffstat (limited to 'Modules/CMakeDetermineCompilerId.cmake')
| -rw-r--r-- | Modules/CMakeDetermineCompilerId.cmake | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Modules/CMakeDetermineCompilerId.cmake b/Modules/CMakeDetermineCompilerId.cmake index 9d3b60f..4f1eaba 100644 --- a/Modules/CMakeDetermineCompilerId.cmake +++ b/Modules/CMakeDetermineCompilerId.cmake @@ -174,6 +174,32 @@ function(CMAKE_DETERMINE_COMPILER_ID lang flagvar src) endif() endif() + # FIXME(LLVMFlang): It does not provide predefines identifying the MSVC ABI or architecture. + # It should be taught to define _MSC_VER and its _M_* architecture flags. + if("x${lang}" STREQUAL "xFortran" AND "x${CMAKE_${lang}_COMPILER_ID}" STREQUAL "xLLVMFlang") + # Parse the target triple to detect information we should later be able + # to get during preprocessing above, once LLVMFlang provides it. + if(COMPILER_${lang}_PRODUCED_OUTPUT MATCHES "-triple ([0-9a-z_]*)-.*windows-msvc([0-9]+)\\.([0-9]+)") + set(CMAKE_${lang}_SIMULATE_ID "MSVC") + set(CMAKE_${lang}_SIMULATE_VERSION "${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") + set(arch ${CMAKE_MATCH_1}) + if(arch STREQUAL "x86_64") + set(CMAKE_${lang}_COMPILER_ARCHITECTURE_ID "x64") + elseif(arch STREQUAL "aarch64") + set(CMAKE_${lang}_COMPILER_ARCHITECTURE_ID "ARM64") + elseif(arch STREQUAL "arm64ec") + set(CMAKE_${lang}_COMPILER_ARCHITECTURE_ID "ARM64EC") + elseif(arch MATCHES "^i[3-9]86$") + set(CMAKE_${lang}_COMPILER_ARCHITECTURE_ID "X86") + else() + message(FATAL_ERROR "LLVMFlang target architecture unrecognized: ${arch}") + endif() + set(MSVC_${lang}_ARCHITECTURE_ID "${CMAKE_${lang}_COMPILER_ARCHITECTURE_ID}") + elseif(COMPILER_${lang}_PRODUCED_OUTPUT MATCHES "-triple ([0-9a-z_]*)-.*windows-gnu") + set(CMAKE_${lang}_SIMULATE_ID "GNU") + endif() + endif() + if (COMPILER_QNXNTO AND (CMAKE_${lang}_COMPILER_ID STREQUAL "GNU" OR CMAKE_${lang}_COMPILER_ID STREQUAL "LCC")) execute_process( COMMAND "${CMAKE_${lang}_COMPILER}" |