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c/2765: File-scope division by zero causes segfault
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c/2765: File-scope division by zero causes segfault
- From: neil at gcc dot gnu dot org
- Date: 7 May 2001 17:56:40 -0000
- Reply-To: neil at gcc dot gnu dot org
>Number: 2765
>Category: c
>Synopsis: File-scope division by zero causes segfault
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon May 07 11:06:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: neil@gcc.gnu.org
>Release: GCC 3.0 (20010506)
>Organization:
>Environment:
>Description:
Compile the following line:-
int i = 8/0;
I've marked this high since it's a regression from 2.95.2.
I believe it's a C front end bug, although the segfault
is caused in gen_emit_rtl, which dereferences a null
pointer (cfunc). We should probably not have proceeded
that far, though I don't know the right place.
Possibly
pedwarn ("initializer element is not computable at load time");
in digest_init should also have
inside_init = error_mark_node;
but this is probably covering up the real problem.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: