================ @@ -520,6 +520,9 @@ def warn_drv_math_errno_enabled_after_veclib: Warning< "math errno enabled by '%0' after it was implicitly disabled by '%1'," " this may limit the utilization of the vector library">, InGroup<MathErrnoEnabledWithVecLib>; +def warn_drv_gcc_incompatible_complex_range_override: Warning< + "combination of '%0' and '%1' results in complex number calculations incompatible with GCC">, ---------------- s-watanabe314 wrote:
Thank you for the feedback! I agree that a user wouldn't know how to handle this warning just by seeing it. How about adding the following note diagnostic and outputting it along with the incompatibility warning? `note: complex multiplication and division use different calculation methods than GCC. specify '%0' after '%1' for GCC compatibility` Implementing this would result in the following output: ``` $ clang test.cpp -fcx-fortran-rules -fcx-limited-range clang: warning: overriding '-fcx-fortran-rules' option with '-fcx-limited-range' [-Woverriding-option] clang: warning: combination of '-fcx-fortran-rules' and '-fcx-limited-range' results in complex number calculations incompatible with GCC [-Wgcc-compat] clang: note: complex multiplication and division use different calculation methods than GCC. specify '-fcx-fortran-rules' after '-fcx-limited-range' for GCC compatibility ``` https://github.com/llvm/llvm-project/pull/144468 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
