https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100626
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Uros Bizjak <u...@gcc.gnu.org>: https://gcc.gnu.org/g:6be2c12e37b167890d68587086a2186358b64c02 commit r11-8468-g6be2c12e37b167890d68587086a2186358b64c02 Author: Uros Bizjak <ubiz...@gmail.com> Date: Tue May 18 15:45:54 2021 +0200 i386: Fix split_double_mode with paradoxical subreg [PR100626] split_double_mode calls simplify_gen_subreg, which fails for the high half of the paradoxical subreg. Return temporary register instead of NULL RTX in this case. 2021-05-18 Uroš Bizjak <ubiz...@gmail.com> gcc/ PR target/100626 * config/i386/i386-expand.c (split_double_mode): Return temporary register when simplify_gen_subreg fails with the high half od the paradoxical subreg. (cherry picked from commit d39fbed75810fc7478842503ecb0268b85dc9c2e)
