https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102989
--- Comment #106 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:f6e0ec5696ec5f52baed71fe23f978bcef80d458 commit r14-3755-gf6e0ec5696ec5f52baed71fe23f978bcef80d458 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Sep 6 17:42:37 2023 +0200 libgcc _BitInt helper documentation [PR102989] On Mon, Aug 21, 2023 at 05:32:04PM +0000, Joseph Myers wrote: > I think the libgcc functions (i.e. those exported by libgcc, to which > references are generated by the compiler) need documenting in libgcc.texi. > Internal functions or macros in the libgcc patch need appropriate comments > specifying their semantics; especially FP_TO_BITINT and FP_FROM_BITINT > which have a lot of arguments and no comments saying what the semantics of > the macros and their arguments are supposed to me. Here is an incremental patch which does that. 2023-09-06 Jakub Jelinek <ja...@redhat.com> PR c/102989 gcc/ * doc/libgcc.texi (Bit-precise integer arithmetic functions): Document general rules for _BitInt support library functions and document __mulbitint3 and __divmodbitint4. (Conversion functions): Document __fix{s,d,x,t}fbitint, __floatbitint{s,d,x,t,h,b}f, __bid_fix{s,d,t}dbitint and __bid_floatbitint{s,d,t}d. libgcc/ * libgcc2.c (bitint_negate): Add function comment. * soft-fp/bitint.h (bitint_negate): Add function comment. (FP_TO_BITINT, FP_FROM_BITINT): Add comment explaining the macros.
