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[Bug c/42596] Integer/Floating point vector casts generate XMM register moves from and to the same register
- 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: 5 Jan 2010 10:47:07 -0000
- Subject: [Bug c/42596] Integer/Floating point vector casts generate XMM register moves from and to the same register
- References: <bug-42596-17273@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenth at gcc dot gnu dot org 2010-01-05 10:47 -------
Uh, of course.
_Don't use global register variables_
They are not supposed to be used for this kind of things and nobody spends
a single second to optimizing code generation for them - instead the most
difficult thing is to prevent the compiler from miscompiling things.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |WONTFIX
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42596