http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56098
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-01-25
CC| |matz at gcc dot gnu.org
Target Milestone|--- |4.6.4
Summary|conditional write through |[4.6/4.7/4.8 Regression]
|volatile pointer produces |conditional write through
|unintended read |volatile pointer produces
| |unintended read
Ever Confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-25
14:42:43 UTC ---
This is cselim at work, preparing the way for if-conversion of the store ...
It shouldn't do this for volatiles of course.
Workaround: -fno-tree-cselim
