[Bug tree-optimization/68773] fpta-ipa with GOACC_parallel does not work due to node->force_output

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68773

--- Comment #1 from vries at gcc dot gnu.org ---
FTR, the actual failures:
...
FAIL: c-c++-common/goacc/kernels-alias-ipa-pta-2.c scan-tree-dump-times
optimized "(?n)= 0;$" 2
FAIL: c-c++-common/goacc/kernels-alias-ipa-pta-2.c scan-tree-dump-times
optimized "(?n)= \\*a" 0
FAIL: c-c++-common/goacc/kernels-alias-ipa-pta.c scan-tree-dump-times optimized
"(?n)= 0;$" 2
FAIL: c-c++-common/goacc/kernels-alias-ipa-pta.c scan-tree-dump-times optimized
"(?n)= \\*_[0-9]\\[0\\];$" 0
...