[Bug tree-optimization/80652] [5 Regression] Union conversion between __m128d and double array does not work under 5.0 through 6.2

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80652

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 CC|                            |rguenth at gcc dot gnu.org
          Component|c++                         |tree-optimization
      Known to work|                            |4.9.4, 6.3.0
            Summary|Union conversion between    |[5 Regression] Union
                   |__m128d and double array    |conversion between __m128d
                   |does not work under 5.0     |and double array does not
                   |through 6.2                 |work under 5.0 through 6.2
      Known to fail|                            |5.1.0, 5.4.0, 6.2.0

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Probably a pending/missing backport of a fix applied for GCC 6.3 so one could
bisect the GCC 6 branch for the fix.