[Bug middle-end/80283] [5/6/7/8 Regression] bad SIMD register allocation

[bernds at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80283

--- Comment #15 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
For reference: patch and discussion here.
https://gcc.gnu.org/ml/gcc-patches/2017-05/msg01058.html