https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79462
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 40718 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40718&action=edit gcc7-pr79462.patch Untested fix. I believe the bug has been introduced in r235698 aka PR52898 fix, when the clobbers have been removed from expanders calling expand_cbranchdi4. operands[4] used to be that clobber, but now when it has only 4 operands, it overwrites random memory after it. I don't have access to SH hw nor any experience with cross-compilers to SH, so I'd appreciate if somebody could actually test it.