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

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

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

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
      Known to work|                            |17.0
            Summary|[14/15/16/17 Regression]    |[14/15/16 Regression] wrong
                   |wrong code at -O2: LIM      |code at -O2: LIM hoists
                   |hoists load past aliasing   |load past aliasing store
                   |store after merging a       |after merging a
                   |COMPONENT_REF with an       |COMPONENT_REF with an
                   |equivalent MEM_REF          |equivalent MEM_REF

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk sofar.  Thanks for the report.