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[Bug middle-end/24282] Optimizer ignores register changing (STOSL)
- From: "falk at debian dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Oct 2005 12:42:18 -0000
- Subject: [Bug middle-end/24282] Optimizer ignores register changing (STOSL)
- References: <bug-24282-11493@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from falk at debian dot org 2005-10-09 12:42 -------
(In reply to comment #2)
> But the modified register is a register of the input list, so gcc should
> know that it will be used.
It knows it is being read. It doesn't know that it is also clobbered.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24282