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).

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