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[Bug middle-end/36124] conditional loop becomes infinite loop in -O2 (gcc 4.2 -> 4.3 regression)
- From: "kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 May 2008 17:01:19 -0000
- Subject: [Bug middle-end/36124] conditional loop becomes infinite loop in -O2 (gcc 4.2 -> 4.3 regression)
- References: <bug-36124-16149@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from kargl at gcc dot gnu dot org 2008-05-04 17:01 -------
(In reply to comment #2)
> shouldn't gcc report a warning in this case ?
>
> because silently entering an infinite loop is not very kind...
>
If your code invokes undefined behavior, how is gcc going
to read your mind? Maybe the programmer meant to enter
an infinite, so a warning isn't correct.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36124