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

[pinskia at gcc dot gnu.org]

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



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



           What    |Removed                     |Added

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           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.