[Bug optimization/11477] writing 0 to memory-location leads to incorrect optimization

[pinskia at physics dot uc dot edu]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11477


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID
   Target Milestone|3.4                         |---


------- Additional Comments From pinskia at physics dot uc dot edu  2003-08-06 06:07 -------
I can confirm this on the mainline (20030728) but this is a valid optimization if you want to 
say that the memory is volatile, declare the variable as volatile and gcc produces the 
result you want.