Horton

Re: JIT compiling with LLVM v12.2

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Stephen Frost <sfrost@snowman.net>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2018-03-21T03:07:50Z
Lists: pgsql-hackers 
Hi,

On 2018-03-20 23:03:13 -0400, Stephen Frost wrote:
> Greetings,
> 
> * Andres Freund (andres@anarazel.de) wrote:
> > On 2018-03-20 19:29:55 -0700, Andres Freund wrote:
> > > On 2018-03-21 15:22:08 +1300, Thomas Munro wrote:
> > > > Somehow your configure test correctly concludes that my $CC (clang
> > > > 4.0) doesn't support -fexcess-precision=standard but that my $CXX
> > > > (clang++ 4.0) does, despite producing a nearly identical warning:
> > > 
> > > Yea, there was a copy & pasto (s/ac_c_werror_flag/ac_cxx_werror_flag/),
> > > sorry. If you rebase onto the committed version, it should work?  I'll
> > > push a version rebased of the jit tree soon.
> > 
> > Well, or not. Seems git.pg.o is down atm:
> > 
> > debug1: Next authentication method: publickey
> > debug1: Offering public key: RSA SHA256:cMbSa8YBm8AgaIeMtCSFvvPDrrrdadCxzQaFiWFe+7c /home/andres/.ssh/id_rsa
> > debug1: Server accepts key: pkalg ssh-rsa blen 277
> > <hang>
> > 
> > Will try tomorrow.
> 
> Andres contacted pginfra over IRC about this, but it seems that it
> resolved itself shortly following (per a comment from Andres to that
> effect), so, afaik, things are working properly.

Indeed. I've pushed a rebased version now, that basically just fixes the
issue Thomas observed.

Thanks,

Andres Freund

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".