Horton

Re: JIT compiling with LLVM v12.2

Thomas Munro <thomas.munro@enterprisedb.com>

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From: Thomas Munro <thomas.munro@enterprisedb.com>
To: Andres Freund <andres@anarazel.de>
Cc: Stephen Frost <sfrost@snowman.net>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2018-03-21T21:50:52Z
Lists: pgsql-hackers 
On Thu, Mar 22, 2018 at 10:44 AM, Andres Freund <andres@anarazel.de> wrote:
> On 2018-03-21 23:10:27 +1300, Thomas Munro wrote:
>> Next up, I have an arm64 system running Debian 9.4.  It bombs in
>> "make check" and in simple tests:
>
> Any chance you could try w/ LLVM 6?  It looks like some parts of ORC
> only got aarch64 in LLVM 6.  I didn't *think* those were necessary, but
> given the backtrace it looks like that still might be relevant.

Hmm.  There is no LLVM 6 in backports.  I'll have to build it, which
I'm happy to do if I can wrap my brain around its cmake build system
(or for you to build it if you want), but it may take... who knows, a
day? on this little thing.

If that turns out to be it I guess we'd need to figure out how to
detect an LLVM with bits missing hand handle it more gracefully?

-- 
Thomas Munro
http://www.enterprisedb.com

Commits

  1. Improve JIT docs.

  2. Add documentation for the JIT feature.

  3. Add EXPLAIN support for JIT.

  4. Add inlining support to LLVM JIT provider.

  5. JIT tuple deforming in LLVM JIT provider.

  6. Add FIELDNO_* macro designating offset into structs required for JIT.

  7. Add expression compilation support to LLVM JIT provider.

  8. Expand list of synchronized types and functions in LLVM JIT provider.

  9. Add helpers for emitting LLVM IR.

  10. Basic planner and executor integration for JIT.

  11. Debugging and profiling support for LLVM JIT provider.

  12. Support for optimizing and emitting code in LLVM JIT provider.

  13. Add file containing extensions of the LLVM C API.

  14. Basic JIT provider and error handling infrastructure.

  15. Add configure infrastructure (--with-llvm) to enable LLVM support.

  16. Add C++ support to configure.

  17. Add PGAC_PROG_VARCC_VARFLAGS_OPT autoconf macro.

  18. Fix VM buffer pin management in heap_lock_updated_tuple_rec().

  19. Allow tupleslots to have a fixed tupledesc, use in executor nodes.

  20. Expression evaluation based aggregate transition invocation.

  21. Perform slot validity checks in a separate pass over expression.

  22. Rely on executor utils to build targetlist for DML RETURNING.

  23. Refer to OS X as "macOS", except for the port name which is still "darwin".