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[Bug c/42907] -fstrict-aliasing breaks valid code
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Jan 2010 22:00:08 -0000
- Subject: [Bug c/42907] -fstrict-aliasing breaks valid code
- References: <bug-42907-18727@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #14 from rguenth at gcc dot gnu dot org 2010-01-30 22:00 -------
(In reply to comment #12)
> I'm not asking for gcc to be a DWIM compiler, I'm asking for it to do EXACTLY
> what I've told it to do.
You told it to use C type-based aliasing rules to optimize. And exactly this
is what it is doing.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42907