[Bug tree-optimization/120425] [12/13/14/15/16 regression] GCC-compiled (with -O{1,2,s,3}) program got segfault from GCC 12.1 since r12-476-gd846f225c25c58

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120425

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
-fno-tree-ch and disabling all three instances of ivcanon with
-fdisable-tree-ivcanon -fdisable-tree-cunrolli -fdisable-tree-cunrol avoids
this with -O1 (with -O2/-O3 there's other places where this triggers).