[Bug ipa/63838] [4.8/4.9/5 Regression] ipa-pure-const miscomputes can_throw

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63838

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 33950
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33950&action=edit
gcc5-pr63838.patch

Untested fix.  For 4.9/4.8, perhaps just the
s/node->indirect_calls/w->indirect_calls/ can be done.