[Bug middle-end/104069] -Werror=use-after-free false positive on elfutils-0.186

[vincent at systemli dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104069

vincent at systemli dot org changed:

           What    |Removed                     |Added
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                 CC|                            |vincent at systemli dot org

--- Comment #24 from vincent at systemli dot org ---
elfutils 0.187 with gcc 12.2.0

In function 'bigger_buffer',
    inlined from '__libdw_gunzip' at gzip.c:376:12:
gzip.c:98:9: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
   98 |     b = realloc (state->buffer, more -= 1024);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gzip.c:96:13: note: call to 'realloc' here
   96 |   char *b = realloc (state->buffer, more);
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors