Horton

Re: JIT compiling with LLVM v9.1

Andreas Karlsson <andreas@proxel.se>

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From: Andreas Karlsson <andreas@proxel.se>
To: Andres Freund <andres@anarazel.de>
Cc: Pierre Ducroquet <p.psql@pinaraf.info>, pgsql-hackers@lists.postgresql.org, Pierre Ducroquet <pierre.ducroquet@people-doc.com>
Date: 2018-02-15T23:42:00Z
Lists: pgsql-hackers 
On 02/15/2018 06:23 PM, Andres Freund wrote:
>> 2) When I build with --with-cassert I expect the assertions to be there,
>> both in the binaries and the bitcode. Is that just a bug or is there any
>> thought behind this?
> 
> Not sure what you mean by that. NDEBUG and cassert are independent
> mechanisms, no?

Yeah, I think I just managed to confuse myself there.

The actual issue is that --with-llvm changes if NDEBUG is set or not, 
which is quite surprising. I would not expect assertions to be disabled 
in the fronted code just because I compiled PostgreSQL with llvm.

Andreas

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".