Hi, This has been a recurring request from users for quite some time; the math routines provided by mingw-w64 are slower than what UCRT provides. When using UCRT, there's little reason to not just use the C99 compliant functions from the UCRT, instead of statically linking in our own versions from libmingwex.a. (This also reduces the binary size somewhat.)
To prefer the UCRT functions where applicable, I move functions from libmingwex.a (which is linked before lib*crt*) into the individual import libraries where necessary. I initially made this patchset back in 2019 already, but it felt quite messy at the time. Since then, the refactorings in 273ef28b85c0a2f789d5a0e0d60d75ef20dc6e73 from 2021 makes this much less painful, since the object files that get moved from libmingwex.a into more than one other library get compiled mostly just once via libmsvcrt_common.a. This should fix issues such as https://github.com/mstorsjo/llvm-mingw/issues/361. // Martin Martin Storsjö (8): crt: Prefer ucrt's math functions over libmingwex, for arch independent functions crt: Prepare Makefile.am for adding arch specific files to crt libraries crt: Move -l suffixed functions from libmingwex to libmsvcr* for arm crt: Move some x86 specific math functions from libmingwex to libmsvcr* crt: Move certain x86 math functions to libmsvcr*.a for all x86, and to libucrt*.a for x86_32 crt: Move fabsf and nexttowardf to libmsvcr*.a for all archs, and to libucrt*.a for x86 crt: Move functions missing from ucrt x86_32 to libucrt*.a for x86_32 and to all libmsvcr*.a headers: Don't do inline redirects from <func>f() to <func>() on UCRT mingw-w64-crt/Makefile.am | 253 ++++++++++++++---- .../api-ms-win-crt-math-l1-1-0.def.in | 62 ++--- mingw-w64-crt/lib-common/ucrtbase.def.in | 62 ++--- mingw-w64-headers/crt/math.h | 16 +- 4 files changed, 271 insertions(+), 122 deletions(-) -- 2.34.1 _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
