https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109982
Bug ID: 109982 Summary: csmith: x86_64: znver1 issues Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: dcb314 at hotmail dot com Target Milestone: --- Created attachment 55164 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55164&action=edit C source code The attached C source code does this: $ ../results/bin/gcc -w bug923.c runData/keep/in.11.c: In function ‘func_68’: runData/keep/in.11.c:835:15: note: the ABI for passing parameters with 128-byte alignment has changed in GCC 4.6 $ ./a.out checksum = 4ED89677 $ ../results/bin/gcc -w -march=znver1 bug923.c runData/keep/in.11.c: In function ‘func_68’: runData/keep/in.11.c:835:15: note: the ABI for passing parameters with 128-byte alignment has changed in GCC 4.6 $ ./a.out Segmentation fault (core dumped) $ The bug first seems to appear sometime between snapshot 20221218 (git hash fd69977febf399d1992bbf8d66ae9170e0a4dc9f) and 20221225 (git hash febb58d28bfa4b544ec7ffec2d61f46d25205ff0).