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[Bug tree-optimization/41089] [4.5 Regression] stdarg pass produces wrong code
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Jan 2010 17:26:06 -0000
- Subject: [Bug tree-optimization/41089] [4.5 Regression] stdarg pass produces wrong code
- References: <bug-41089-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #36 from ubizjak at gmail dot com 2010-01-22 17:26 -------
(In reply to comment #35)
> That doesn't make me have an alpha machine or a proper reduced testcase.
> Note that it now only fails at -O3.
>
> Please paste a reduced testcase that still fails and track down what
> is the pass that does which wrong transformation.
Probably you should read Comment #20 all the way to the end... There are listed
_two_ testcases (with dumps) and the exact location in execute_optimize_stdarg
() of tree-stdarg.c where the problem happens.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41089