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[Bug optimization/14700] [3.3.3/3.4/3.5 regression ] ICE in verify_wide_reg with global registers
- 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 Mar 2004 10:27:30 -0000
- Subject: [Bug optimization/14700] [3.3.3/3.4/3.5 regression ] ICE in verify_wide_reg with global registers
- References: <20040323222458.14700.debian-gcc@lists.debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ebotcazou at gcc dot gnu dot org 2004-03-29 10:27 -------
The regression was introduced by:
2003-05-14 Eric Christopher <echristo@redhat.com>
* combine.c: Fix header comments.
(distribute_notes): Remove usage of elim_i1, elim_i2. Propagate
to all calls and prototype.
which was backported to the 3.3 branch by:
2003-12-16 Zack Weinberg <zack@codesourcery.com>
Backport the following patches from mainline.
The assignment
(MR_mr2) = 0;
is wrongly deleted by the combiner. This probably means that global register
variables are still broken.
--
What |Removed |Added
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CC| |echristo at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14700