[Bug ipa/78365] [7 Regression] ICE in determine_value_range, at tree-ssa-loo p-niter.c:413

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78365

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Senkevich from comment #10)
> This commit breaks 5 SPEC CPU 2006 benchmarks (416.gamess, 454.calculix,
> 459.GemsFDTD, 465.tonto, 481.wrf) with ICE on x86_64 (and looks like on
> aarch64 the same - https://gcc.gnu.org/ml/gcc/2017-01/msg00126.html).

Looks like a GC issue as I was reducing the code but removing the comments and
empty lines caused the testcase to no longer crash.  Adding --param
ggc-min-expand=1 --param ggc-min-heapsize=1 allowed it to ICE now.