[Bug c/49644] [4.5/4.6 Regression] post-increment of promoted operand is incorrect.

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49644

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.4.6
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2011.07.05 15:41:41
                 CC|                            |jsm28 at gcc dot gnu.org
     Ever Confirmed|0                           |1
            Summary|[ 4.5/4.6 Regression ]      |[4.5/4.6 Regression]
                   |post-increment of promoted  |post-increment of promoted
                   |to complex operand is       |operand is incorrect.
                   |incorrect.                  |
   Target Milestone|---                         |4.5.4

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-05 
15:41:41 UTC ---
The frontend generates

  *c++  = COMPLEX_EXPR <*d++  * REALPART_EXPR <SAVE_EXPR <s>>, *d++  *
IMAGPART_EXPR <SAVE_EXPR <s>>>;

and thus increments d twice.