https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118067
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- Created attachment 59935 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59935&action=edit Target-dependant patch SImode and DImode moves involving mask registers are valid only with AVX512BW, so mark relevant alternatives in *movsi_internal and *movdi_internal as such. Even with the patch, the testcase still fails, but now with: pr118067.c: In function ‘foo’: pr118067.c:13:1: internal compiler error: maximum number of generated reload insns per insn achieved (90) 13 | } | ^ 0x2c3b581 internal_error(char const*, ...) ../../git/gcc/gcc/diagnostic-global-context.cc:517 0xb68938 lra_constraints(bool) ../../git/gcc/gcc/lra-constraints.cc:5411 0xb51a0d lra(_IO_FILE*, int) ../../git/gcc/gcc/lra.cc:2449 0xaf9f4d do_reload ../../git/gcc/gcc/ira.cc:5977 0xafa462 execute ../../git/gcc/gcc/ira.cc:6165 which is now suspiciously close (or even duplicate of) PR118017. So, keep the PR as RA problem.
