[Bug rtl-optimization/14347] ifconvert doesn't generate conditional store on i386

ak at muc dot de gcc-bugzilla@gcc.gnu.org
Mon May 31 22:19:00 GMT 2004


------- Additional Comments From ak at muc dot de  2004-05-31 12:34 -------
Well, the optimization is clearly bogus since it will unncessarily
dirty cache lines, which can be extremly costly. It can also require programs 
that didn't need volatile before require to add volatile to add SMP races
(that's legal as done by the compiler, but not very nice) But I will open a
separate bug for that.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14347



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