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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/103267] Wrong code with ipa-sra
Date: Tue, 16 Nov 2021 08:26:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103267

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
jan@localhost:~> gcc t.c
t.c:2:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplicit=
-int]
    2 | infinite (int p)
      | ^~~~~~~~
t.c:16:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplici=
t-int]
   16 | test2(int *a)
      | ^~~~~
t.c:20:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplici=
t-int]
   20 | main()
      | ^~~~
jan@localhost:~> ./a.out
...loops infinitely....
jan@localhost:~> gcc t.c -O2
t.c:2:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplicit=
-int]
    2 | infinite (int p)
      | ^~~~~~~~
t.c:16:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplici=
t-int]
   16 | test2(int *a)
      | ^~~~~
t.c:20:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimplici=
t-int]
   20 | main()
      | ^~~~
jan@localhost:~> ./a.out
Segmentation fault (core dumped)=