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[Bug rtl-optimization/14347] ifconvert doesn't generate conditional store on i386
- From: "ak at muc dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 May 2004 17:02:30 -0000
- Subject: [Bug rtl-optimization/14347] ifconvert doesn't generate conditional store on i386
- References: <20040229165737.14347.ak@muc.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From ak at muc dot de 2004-05-30 17:02 -------
Sorry reading this again, you're right.
it looks a bit broken though since it will always dirty the cache line,
which can be much more costly than doing the jump. Not sure if that's a
good way. The original way I propose by doing the CMOV on the target
address would avoid this problem.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14347