https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79665
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
What we can do IMHO is in expand_divmod, if we have division or modulo by
constant and the first operand is known to have 0 MSB (from get_range_info or
get_nonzero_bits), then we can expand it as both signed or unsigned
division/modulo, regardless what unsignedp is. Then we could compare costs of
both expansions and decide what is faster.
