[webkit-changes] [WebKit/WebKit] 8abe49: Add Probabilistic Guard Malloc (PGM) support to bm...

[nishajain61]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 8abe4988433e70fd4884abc737594c6b665f2e39
      https://github.com/WebKit/WebKit/commit/8abe4988433e70fd4884abc737594c6b665f2e39
  Author: Nisha Jain <nisha_jain at apple.com>
  Date:   2024-07-16 (Tue, 16 Jul 2024)

  Changed paths:
    M Source/bmalloc/libpas/src/libpas/pas_deallocate.c
    M Source/bmalloc/libpas/src/libpas/pas_deallocate.h
    M Source/bmalloc/libpas/src/libpas/pas_heap.h
    M Source/bmalloc/libpas/src/libpas/pas_try_allocate_common.h
    M Source/bmalloc/libpas/src/libpas/pas_try_reallocate.h
    M Source/bmalloc/libpas/src/test/IsoHeapPartialAndBaselineTests.cpp

  Log Message:
  -----------
  Add Probabilistic Guard Malloc (PGM) support to bmalloc (small allocation support)
https://bugs.webkit.org/show_bug.cgi?id=275748
rdar://71997177

Reviewed by Keith Miller.

Add Probabilistic Guard Malloc (PGM) support to bmalloc (small allocation support).

* Source/bmalloc/libpas/src/libpas/pas_deallocate.c:
(pas_try_deallocate_pgm_large):
(pas_check_pgm_entry_exists):
(pas_try_deallocate_slow_no_cache):
* Source/bmalloc/libpas/src/libpas/pas_deallocate.h:
* Source/bmalloc/libpas/src/libpas/pas_heap.h:
* Source/bmalloc/libpas/src/libpas/pas_try_allocate_common.h:
(pas_try_allocate_common_impl_slow):
* Source/bmalloc/libpas/src/libpas/pas_try_reallocate.h:
(pas_try_reallocate):
* Source/bmalloc/libpas/src/test/IsoHeapPartialAndBaselineTests.cpp:
(std::testTwoBaselinesEvictions):

Canonical link: https://commits.webkit.org/281009@main



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