[Bug tree-optimization/56476] ARM volatile writes/str creates superfluous and uncalled for read/ldr with -Os

pinskia at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Feb 27 19:42:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56476

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
          Component|target                      |tree-optimization

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-02-27 19:41:43 UTC ---
The tree pass CSElim is doing this for some reason.  I think it forgot to check
for volatileness.



More information about the Gcc-bugs mailing list