[webkit-changes] [WebKit/WebKit] b8cd89: [JSC] Reduce sizeof(CodeBlock) from 232 to 224

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: b8cd89e4b5ebad42a64776eabff6cbeb992a0992
      https://github.com/WebKit/WebKit/commit/b8cd89e4b5ebad42a64776eabff6cbeb992a0992
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2023-11-29 (Wed, 29 Nov 2023)

  Changed paths:
    M Source/JavaScriptCore/bytecode/CodeBlock.cpp
    M Source/JavaScriptCore/bytecode/CodeBlock.h

  Log Message:
  -----------
  [JSC] Reduce sizeof(CodeBlock) from 232 to 224
https://bugs.webkit.org/show_bug.cgi?id=265508
rdar://118917365

Reviewed by Mark Lam.

This patch reduces sizeof(CodeBlock) by using float for m_previousCounter.
This is OK since BaselineExecutableCounter is anyway keeping m_totalCount as float,
so it is aligned to that precision.

* Source/JavaScriptCore/bytecode/CodeBlock.cpp:
(JSC::CodeBlock::finalizeUnconditionally):
* Source/JavaScriptCore/bytecode/CodeBlock.h:

Canonical link: https://commits.webkit.org/271273@main