[Bug tree-optimization/81987] [8 Regression] ICE in verify_ssa with -O3 -march=skylake-avx512

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81987

--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Patch submitted here:  https://gcc.gnu.org/ml/gcc-patches/2017-08/msg01743.html