[Bug rtl-optimization/87485] [9 Regression] Compile time hog w/ -O2 -fschedule-insns -fno-guess-branch-probability -fno-isolate-erroneous-paths-dereference -fno-omit-frame-pointer -fno-split-wide-types -fno-tree-ccp -fno-tree-sra

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87485

--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 45583
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45583&action=edit
gcc9-pr87485.patch

So like this (untested so far except for the testcase)?