[Bug tree-optimization/127858] [14/15/16/17 Regression] wrong code at -O2: LIM hoists load past aliasing store after merging a COMPONENT_REF with an equivalent MEM_REF

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127858

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|wrong code at -O2: LIM      |[14/15/16/17 Regression]
                   |hoists load past aliasing   |wrong code at -O2: LIM
                   |store after merging a       |hoists load past aliasing
                   |COMPONENT_REF with an       |store after merging a
                   |equivalent MEM_REF          |COMPONENT_REF with an
                   |                            |equivalent MEM_REF
      Known to fail|                            |12.1.0
   Target Milestone|---                         |14.5