================ @@ -232,6 +232,22 @@ if(LIBC_GPU_BUILD) list(APPEND RUNTIMES_amdgcn-amd-amdhsa_LLVM_ENABLE_RUNTIMES "libc") endif() +# Set up Arm64X build of the OpenMP runtime +option(LIBOMP_ENABLE_ARM64X "Build the OpenMP library as Arm64X for compatibility with both Arm64 and Arm64EC" OFF) +if(LIBOMP_ENABLE_ARM64X) + if(NOT LLVM_HOST_TRIPLE STREQUAL "aarch64-pc-windows-msvc") + messsage(FATAL_ERROR "Arm64X builds are only supported on Windows on Arm hosts.") + endif() + if(NOT LLVM_RUNTIME_TARGETS) + set(LLVM_RUNTIME_TARGETS "default") + endif() + + if(NOT "arm64ec-pc-windows-msvc" IN_LIST LLVM_RUNTIME_TARGETS) + list(APPEND LLVM_RUNTIME_TARGETS "arm64ec-pc-windows-msvc") + endif() + set(RUNTIMES_arm64ec-pc-windows-msvc_LIBOMP_ENABLE_ARM64X ON) +endif() ---------------- DavidTruby wrote:
It'll only error out when cross compiling if you also request the ARM64X build there, and that won't work anyway atm so we _should_ error out in that case I think? I suppose it could be done with a cache file but we still need to establish the `LIBOMP_ENABLE_ARM64X` variable somehow, and check that it's not being used in a way that won't work, so I'd still have to just change these `set(...` commands to `if(NOT ...) message(FATAL_ERROR ...)` or there will just be confusing failures way later in the build https://github.com/llvm/llvm-project/pull/176157 _______________________________________________ llvm-branch-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
