[Bug ipa/68331] New: [meta-bug] fipa-pta issues

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68331

            Bug ID: 68331
           Summary: [meta-bug] fipa-pta issues
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

From https://gcc.gnu.org/ml/gcc-patches/2015-11/msg01630.html :

1)
we lack good testing coverage for IPA PTA so wrong-code bugs might still exist

2)
IPA PTA can use a _lot_ of memory and compile-time

3)
for existing wrong-code issues I have merely dumbed down the use of the
analysis result resulting in weaker alias analysis compared to the local PTA
(for some cases)

Because of 2 and no good way to avoid this I decided to not make
fixing 3 a priority (and 1 still holds).