[Bug middle-end/56015] [4.6/4.7/4.8 Regression] expand expands p[9] = COMPLEX_EXPR <-IMAGPART_EXPR , REALPART_EXPR >; incorrectly.

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56015



Jakub Jelinek <jakub at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|NEW                         |ASSIGNED

                 CC|                            |jakub at gcc dot gnu.org

      Known to work|                            |4.1.2

         AssignedTo|unassigned at gcc dot       |jakub at gcc dot gnu.org

                   |gnu.org                     |

   Target Milestone|---                         |4.6.4

            Summary|expand expands p[9] =       |[4.6/4.7/4.8 Regression]

                   |COMPLEX_EXPR                |expand expands p[9] =

                   |<-IMAGPART_EXPR <p[9]>,     |COMPLEX_EXPR

                   |REALPART_EXPR <p[9]>>;      |<-IMAGPART_EXPR <p[9]>,

                   |incorrectly.                |REALPART_EXPR <p[9]>>;

                   |                            |incorrectly.



--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-17 
10:30:11 UTC ---

Works correctly with 4.1.2, where we had

  CR.108 = REALPART_EXPR <p[0]>;

  REALPART_EXPR <p[0]> = -IMAGPART_EXPR <p[0]>;

  IMAGPART_EXPR <p[0]> = CR.108;

in the *.optimized dump.  Thus a regression.