[Bug tree-optimization/68673] Handle __builtin_GOMP_task optimally in ipa-pta

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68673

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note GOMP_target_ext has similar depend argument.