[Bug c/121585] New: Analyzer hangs when building mbedtls's sha512.c

[faber at faberman dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121585

            Bug ID: 121585
           Summary: Analyzer hangs when building mbedtls's sha512.c
           Product: gcc
           Version: 15.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: faber at faberman dot de
  Target Milestone: ---

Created attachment 62142
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62142&action=edit
Test suite that lets gcc hang

When building `sha512.c` from the mbedtls package with `-fanalyze`, gcc 15.2.0
hangs. Tested on arm and x86_64 toolchain.

I created a test suite to reproduce the bug, please find the archive attached.
To reproduce, simply unpack and run `make`.