https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94614
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:eafeba3e5187a53a4c08a3285b4b220e1ab68b60 commit r10-7753-geafeba3e5187a53a4c08a3285b4b220e1ab68b60 Author: Richard Biener <rguent...@suse.de> Date: Thu Apr 16 09:37:44 2020 +0200 middle-end/94614 - avoid multiword moves to nothing This adjusts emit_move_multi_word to handle moves into paradoxical subregs parts that are not there and adjusts lower-subregs CLOBBER resolving to deal with those as well. 2020-04-16 Richard Biener <rguent...@suse.de> PR middle-end/94614 * expr.c (emit_move_multi_word): Do not generate code when the destination part is undefined_operand_subword_p. * lower-subreg.c (resolve_clobber): Look through a paradoxica subreg.
