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[Bug optimization/8361] [3.3/3.4 regression] C++ compile-time performance regression
- From: "dann at godzilla dot ics dot uci dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Jun 2003 21:17:50 -0000
- Subject: [Bug optimization/8361] [3.3/3.4 regression] C++ compile-time performance regression
- References: <20021025133601.8361.pfeifer@dbai.tuwien.ac.at>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8361
------- Additional Comments From dann at godzilla dot ics dot uci dot edu 2003-06-20 21:17 -------
As shown in:
http://gcc.gnu.org/ml/gcc/2003-06/msg01596.html
a significant number of insns generated (about 1/3 of the total) for
generate-3.4 are NOTE_INSN_DELETED.
I am not sure if this is a regression or not, but generating less useless insns
should help somewhat, so this might be an interesting data point.