llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-openmp Author: Xing Xue (xingxue-ibm) <details> <summary>Changes</summary> The compiler uses TLS for thread‑private data, which results in references to symbols such as `__tls_get_addr` in `libpthreads`. Therefore, this PR adds `libpthreads` to the link command when `-fopenmp` is specified. --- Full diff: https://github.com/llvm/llvm-project/pull/184629.diff 1 Files Affected: - (modified) clang/lib/Driver/ToolChains/AIX.cpp (+2) ``````````diff diff --git a/clang/lib/Driver/ToolChains/AIX.cpp b/clang/lib/Driver/ToolChains/AIX.cpp index 2078ad57aee18..e7f4792ac5bba 100644 --- a/clang/lib/Driver/ToolChains/AIX.cpp +++ b/clang/lib/Driver/ToolChains/AIX.cpp @@ -310,6 +310,8 @@ void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA, // Already diagnosed. break; } + // libpthreads is required for -fopenmp. + CmdArgs.push_back("-lpthreads"); } // Support POSIX threads if "-pthreads" or "-pthread" is present. `````````` </details> https://github.com/llvm/llvm-project/pull/184629 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
