Re: JIT compiling with LLVM v9.1

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От Andres Freund
Тема Re: JIT compiling with LLVM v9.1
Дата
Msg-id 20180129095350.s2i37m32ws7qcj4s@alap3.anarazel.de
обсуждение исходный текст
Ответ на JIT compiling with LLVM v9.0  (Andres Freund <andres@anarazel.de>)
Ответы Re: JIT compiling with LLVM v9.1
Re: JIT compiling with LLVM v9.1
Re: JIT compiling with LLVM v9.1
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Hi,

On 2018-01-23 23:20:38 -0800, Andres Freund wrote:
> == Code ==
> 
> As the patchset is large (500kb) and I'm still quickly evolving it, I do
> not yet want to attach it. The git tree is at
>   https://git.postgresql.org/git/users/andresfreund/postgres.git
> in the jit branch
>   https://git.postgresql.org/gitweb/?p=users/andresfreund/postgres.git;a=shortlog;h=refs/heads/jit

I've just pushed an updated and rebased version of the tree:
- Split the large "jit infrastructure" commits into a number of smaller
  commits
- Split the C++ file
- Dropped some of the performance stuff done to heaptuple.c - that was
  mostly to make performance comparisons a bit more interesting, but
  doesn't seem important enough to deal with.
- Added a commit renaming datetime.h symbols so they don't conflict with
  LLVM variables anymore, removing ugly #undef PM/#define PM dance
  around includes. Will post separately.
- Reduced the number of pointer constants in the generated LLVM IR, by
  doing more getelementptr accesses (stem from before the time types
  were automatically synced)
- Increased number of comments a bit

There's a jit-before-rebase-2018-01-29 tag, for the state of the tree
before the rebase.

Regards,

Andres


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