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[Bug middle-end/34400] [4.3 regression] bad interaction between DF and SJLJ exceptions
- From: "stevenb dot gcc at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Dec 2007 06:15:24 -0000
- Subject: [Bug middle-end/34400] [4.3 regression] bad interaction between DF and SJLJ exceptions
- References: <bug-34400-286@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #43 from stevenb dot gcc at gmail dot com 2007-12-20 06:15 -------
Subject: Re: [4.3 regression] bad interaction between DF and SJLJ exceptions
I did not mean more bitmaps but more elements per bitmap, obviously.
I know the effect of the patch, or I wouldn't have written it ;-)
I tried to add something like df_hack2 to the reaching defs problem,
but I didn't succeed the first time. It is indeed harder. If you
could work in it, that would be terrific.
I will work on some tools to investigate DF memory usage.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34400