https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104681
--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:cc7bc8b2ba5adc89e99bc7923cd3e822b7d465cf commit r10-10689-gcc7bc8b2ba5adc89e99bc7923cd3e822b7d465cf Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Feb 25 18:58:48 2022 +0100 rs6000: Use rs6000_emit_move in movmisalign<mode> expander [PR104681] The following testcase ICEs, because for some strange reason it decides to use movmisaligntf during expansion where the destination is MEM and source is CONST_DOUBLE. For normal mov<mode> expanders the rs6000 backend uses rs6000_emit_move to ensure that if one operand is a MEM, the other is a REG and a few other things, but for movmisalign<mode> nothing enforced this. The middle-end documents that movmisalign<mode> shouldn't fail, so we can't force that through predicates or condition on the expander. 2022-02-25 Jakub Jelinek <ja...@redhat.com> PR target/104681 * config/rs6000/vector.md (movmisalign<mode>): Use rs6000_emit_move. * g++.dg/opt/pr104681.C: New test. (cherry picked from commit 3885a122f817a1b6dca4a84ba9e020d5ab2060af)