Horton

Re: JIT compiling with LLVM v12

David Steele <david@pgmasters.net>

View thread View on postgr.es
From: David Steele <david@pgmasters.net>
To: Andres Freund <andres@anarazel.de>, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: pgsql-hackers@postgresql.org
Date: 2018-03-28T22:24:53Z
Lists: pgsql-hackers 
On 3/28/18 6:09 PM, Andres Freund wrote:
> 
> On 2018-03-28 18:06:24 -0400, Peter Eisentraut wrote:
>> On 3/28/18 17:27, Andres Freund wrote:
>>> I've pushed these three.
>>
>> Great, now the only thing remaining is to prepare an unconference
>> session explaining all this to the rest of us. ;-)
> 
> Hah! Happy to, if there's enough people interested.  I've a talk about
> it too (state of jit, 2018 edition), but I wasn't planning to go into
> too low level details. More about what is good, what is bad, and how we
> make it better ;)

+1 for an unconference session.  This is some seriously cool stuff.

-- 
-David
david@pgmasters.net

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".