[webkit-changes] [WebKit/WebKit] 5f7201: [JSC] Implement SuperSampler code in LLInt

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 5f72014c126b4da2334c8636d7f642e50bdaab6b
      https://github.com/WebKit/WebKit/commit/5f72014c126b4da2334c8636d7f642e50bdaab6b
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2023-02-13 (Mon, 13 Feb 2023)

  Changed paths:
    M Source/JavaScriptCore/bytecode/SuperSampler.h
    M Source/JavaScriptCore/llint/LLIntSlowPaths.cpp
    M Source/JavaScriptCore/llint/LLIntSlowPaths.h
    M Source/JavaScriptCore/llint/LowLevelInterpreter.asm

  Log Message:
  -----------
  [JSC] Implement SuperSampler code in LLInt
https://bugs.webkit.org/show_bug.cgi?id=252159
rdar://105382358

Reviewed by Keith Miller and Tadeu Zagallo.

This patch implements op_super_sampler_begin and op_super_sampler_end in LLInt asm instead of function calls from LLInt.
This also adds superSamplerBegin / superSamplerEnd LLInt macros, which can be usable to sample LLInt code.

* Source/JavaScriptCore/bytecode/SuperSampler.h:
* Source/JavaScriptCore/llint/LLIntSlowPaths.cpp:
* Source/JavaScriptCore/llint/LLIntSlowPaths.h:
* Source/JavaScriptCore/llint/LowLevelInterpreter.asm:

Canonical link: https://commits.webkit.org/260205@main