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[Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- From: "rask at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Sep 2007 11:13:48 -0000
- Subject: [Bug target/11180] [avr-gcc] Optimization decrease performance of struct assignment.
- References: <bug-11180-6291@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #21 from rask at gcc dot gnu dot org 2007-09-17 11:13 -------
It's probably someting simple, see config.log. Like I said, the patch is a
quick and dirty one and the AVR back end can use more work than that, most of
which means deleting patterns. Examples: All and, ior, xor, one_cmpl and sign
extend patterns larger than qimode, all zero_extend patterns, all movsi, movdi
and such. Along with that all the output_xxx functions in avr.c that they use.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11180