[Bug middle-end/61577] [4.9.0 Regression] can't compile on hp-ux v3 ia64

[peter.bisroev at groundlabs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61577

--- Comment #190 from Peter Bisroev <peter.bisroev at groundlabs dot com> ---
(In reply to dave.anglin from comment #189)
> On 2020-02-16 4:21 p.m., John David Anglin wrote:
> > On 2020-02-15 3:32 p.m., peter.bisroev at groundlabs dot com wrote:
> >> I have not had a chance to look through these in great detail, will do this
> >> later today, but some things I've noticed (not sure how important they are
> >> yet):
> >> - aCC seems to use PCREL21BI relocations while GCC PCREL21B.
> > That may be the clue.  With GNU ld, only PCREL21BI goes through PLT.  Need to look at when
> > GNU as uses PCREL21BI instead of PCREL21B.  I believe this selection is done in assembler.
> Sorry, only PCREL21B goes through PLT.  PCREL21BI is for local (internal)
> calls.

Hi Dave, I apologize for the delay in response, been a busy week so far.
However I should be able to take a look at this further tomorrow.

As per your recommendation I will try and find out when GNU as generates
PCREL21BI relocations instead of PCREL21B. I am assuming this is what we want
in order to match aCC behavior, right?

Thanks!