ruby.git/yjit/src/utils.rs, branch v3_3_11

YJIT: Use u32 for CodePtr to save 4 bytes each

2023-11-07T22:43:43+00:00

We've long had a size restriction on the code memory region such that a
u32 could refer to everything. This commit capitalizes on this
restriction by shrinking the size of `CodePtr` to be 4 bytes from 8.

To derive a full raw pointer from a `CodePtr`, one needs a base pointer.
Both `CodeBlock` and `VirtualMemory` can be used for this purpose. The
base pointer is readily available everywhere, except for in the case of
the `jit_return` "branch". Generalize lea_label() to lea_jump_target()
in the IR to delay deriving the `jit_return` address until `compile()`,
when the base pointer is available.

On railsbench, this yields roughly a 1% reduction to `yjit_alloc_size`
(58,397,765 to 57,742,248).

YJIT: Return Option from asm.compile() for has_dropped_bytes()

2023-10-19T18:56:35+00:00

So that we get a reminder to check CodeBlock::has_dropped_bytes().
Internally, asm.compile() already checks it, and this patch just
propagates it out to the caller with a `#[must_use]`.

Code GC logic moved out one level in entry_stub_hit(), so the body
can freely use `?`

YJIT: Add --yjit-perf (#8697)

2023-10-18T21:07:03+00:00

Co-authored-by: Alan Wu

[DOC] Removed redundant `the`

2023-07-13T11:30:44+00:00

YJIT: Introduce Target::SideExit (#7712)

2023-04-14T21:00:10+00:00

* YJIT: Introduce Target::SideExit

* YJIT: Obviate Insn::SideExitContext

* YJIT: Avoid cloning a Context for each insn

YJIT: Let Assembler own Context (#7691)

2023-04-12T19:11:44+00:00

* YJIT: Let Assembler own Context

* Update a comment

Co-authored-by: Maxime Chevalier-Boisvert 

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Co-authored-by: Maxime Chevalier-Boisvert

YJIT: Stack temp register allocation for arm64 (#7659)

2023-04-06T15:34:58+00:00

* YJIT: Stack temp register allocation for arm64

* Update a comment

Co-authored-by: Maxime Chevalier-Boisvert 

* Update comments about assertion

* Update a comment

Co-authored-by: Maxime Chevalier-Boisvert 

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Co-authored-by: Maxime Chevalier-Boisvert

YJIT: use u16 for insn_idx instead of u32 (#7534)

2023-03-15T21:55:29+00:00

YJIT: Make iseq_get_location consistent with iseq.c (#7074)

2023-01-06T19:49:59+00:00

* YJIT: Make iseq_get_location consistent with iseq.c

* YJIT: Call it "YJIT entry point"

Co-authored-by: Maxime Chevalier-Boisvert 

Co-authored-by: Maxime Chevalier-Boisvert

YJIT: Interleave inline and outlined code blocks (#6460)

2022-10-17T17:45:59+00:00

Co-authored-by: Alan Wu 
Co-authored-by: Maxime Chevalier-Boisvert