[Bug tree-optimization/80072] [7 Regression] ICE in gimple_build_assign_1 with -O3 -march=broadwell/skylake-avx512

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80072

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Comment on attachment 41020
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41020
gcc7-pr80072.patch

Looks good.