[Bug 99660] Not all of the int64 conversion opcodes got implemented

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99660

            Bug ID: 99660
           Summary: Not all of the int64 conversion opcodes got
                    implemented
           Product: Mesa
           Version: 17.0
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: jason at jlekstrand.net
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Nicolai just pushed some additions to the int64 test generator in piglit and
we're failing a few hundred of the new tests.  It seems that most of the
conversion operations weren't properly added to channel expressions and some of
them didn't get implemented in the back-end.  Either that, or the lowering code
isn't doing what it claims (given that it claims to use ivec2's).  I started
hacking on trying to fix it and fixed a couple hundred but there are still
about 200 tests still failing:

https://cgit.freedesktop.org/~jekstrand/mesa/log/?h=wip/int64-fixes

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