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[Bug optimization/11864] [3.3 regression] miscompiles zero extention and test
- From: "ebotcazou at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Feb 2004 12:45:45 -0000
- Subject: [Bug optimization/11864] [3.3 regression] miscompiles zero extention and test
- References: <20030809063003.11864.kkojima@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-02-29 12:45 -------
[It might help to CC me...]
If you are willing to backport
2004-01-27 Eric Botcazou <ebotcazou@libertysurf.fr>
PR target/10904
PR target/13058
* config/sparc/sparc.h (CANNOT_CHANGE_MODE_CLASS): New.
Forbid mode changes from SImode for lower FP regs if ARCH64.
to the branch, I think Joern's patches are OK for SPARC.
Beware, however, that other 64-bit ports might be affected by the same problem.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11864