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[Bug target/19046] [4.0 Regression] MOVE_RATIO should be tweaked
- From: "dje at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Dec 2004 22:58:15 -0000
- Subject: [Bug target/19046] [4.0 Regression] MOVE_RATIO should be tweaked
- References: <20041216222115.19046.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From dje at gcc dot gnu dot org 2004-12-16 22:58 -------
I think it needs some experimentation to determine the best performance trade
off. I do not expect a value of 15 to be correct. I would guess at something
like
#define MOVE_RATIO (TARGET_STRING ? 2 : optimize_size ? 3 : 7)
as a good start.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19046