heap: Inline GCTracer::Scope constructor and destructor
Tracer scopes are used in numerous places in src/heap to track time spent during various phases of the garbage collection. Usually, they are introduced with the TRACE_GC* family of macros, taking the scope identifier as a parameter. At most call sites, the scope identifier is known at compile time. This CL inlines the constructor and destructor of GCTracer::Scope, in order to enable the C++ compiler to properly optimize the introduction of such scopes when the scope identifier is known at compile time, using constant propagation. This is expected to have a performance impact for short-lived and frequently used scopes, e.g., in incremental marking and sweeping steps. Change-Id: I6f1a2954a437de1fa6dab5e464c20c952d84ffd4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581774Reviewed-by: Omer Katz <omerkatz@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org> Cr-Commit-Position: refs/heads/main@{#79957}
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src/heap/gc-tracer-inl.h
0 → 100644
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