[webkit-changes] [WebKit/WebKit] ff6364: Add support for collecting stats on CSS selector o...

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  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ff6364a5ebb3d2d97284b9577c1d014339f570a0
      https://github.com/WebKit/WebKit/commit/ff6364a5ebb3d2d97284b9577c1d014339f570a0
  Author: Mark Lam <mark.lam at apple.com>
  Date:   2023-04-03 (Mon, 03 Apr 2023)

  Changed paths:
    M Source/WebCore/cssjit/SelectorCompiler.cpp

  Log Message:
  -----------
  Add support for collecting stats on CSS selector operation functions.
https://bugs.webkit.org/show_bug.cgi?id=254877
rdar://10752100

Reviewed by Chris Dumez.

To collect these stats, change the #define of ENABLE_SELECTOR_OPERATION_STATS in
SelectorCompiler.cpp to 1.  Then, add a call to dumpSelectorOperationStats() at
an appropriate place to dump the stats after it is collected.  See comment at the
top of SelectorCompiler.cpp for a suggestion of where to do this.  After that,
rebuild WebKit.

* Source/WebCore/cssjit/SelectorCompiler.cpp:
(WebCore::SelectorCompiler::numberOfSelectorOperations):
(WebCore::SelectorCompiler::dumpSelectorOperationStats):
(WebCore::SelectorCompiler::JSC_DEFINE_JIT_OPERATION):

Canonical link: https://commits.webkit.org/262557@main