[Bug tree-optimization/69058] segfault with ftree-parallelize-loops=2 in libgo/go/strconv/decimal.go

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69058

--- Comment #6 from vries at gcc dot gnu.org ---
(In reply to Thomas Schwinge from comment #5)
> Isn't it a gccgo front end (spec) bug, that it doesn't bring in GOMP stuff
> (builtins, link against libgomp) under the presence of
> "-ftree-parallelize-loops=2"?  Cf. gcc/gcc.c:GOMP_SELF_SPECS.

Making parloops robust against missing libgomp support is a conservative fix
for the ICE, and appropriate for stage3.

Enabling parloops for go could be a stage1 effort. But (having no go knowledge
whatsoever) I cannot exclude the possibility that the libgomp support is
missing intentionally.