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[Bug rtl-optimization/12863] [3.4 regression] basic block reordering fails for fallthru of casesi
- From: "dave at hiauly1 dot hia dot nrc dot ca" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Dec 2004 03:48:55 -0000
- Subject: [Bug rtl-optimization/12863] [3.4 regression] basic block reordering fails for fallthru of casesi
- References: <20031031212321.12863.danglin@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca 2004-12-05 03:48 -------
Subject: Re: [3.4 regression] basic block reorder
> What |Removed |Added
> ----------------------------------------------------------------------------
> Known to work|3.3 |3.3 4.0.0
I believe that 3.3 is broken. In my first attempt at a build with
Steven's patch, I hit the error noted in comment #17. This occurred
using 3.3 20030420 (prerelease). I debugged the ICE that occurred
compiling genmodes.c and found that it was due to a miscompiled
switch statement. I then switched to a different bootstrap compiler
and the build was successful.
It's quite possible that Josef's patch would have fixed the problem
on 3.4 but unfortunately I didn't investigate further.
I have a build of 3.3 in progress with Steven's patch. Should be done
in a week or so ...
Dave
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12863