[Bug middle-end/61762] failure to optimize memcpy from constant string

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61762

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2014-07-10
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot 
gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  I noticed elsewhere that we don't optimize

  static const char string[8] = "Private";
  unsigned int _2;

  <bb 2>:
  _2 = MEM[(char * {ref-all})&string];

to

  _2 = VIEW_CONVERT_EXPR <unsigned int> ("Private");


Mine.

Note that when not expanding the memcpy to a plain assignment in GIMPLE
GCC will likely do the "right" thing.