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Maya Lekova authored
This reverts commit a8b61ef5. Reason for revert: Looks like it breaks GC stress bot - https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/35880/overview Original change's description: > [sparkplug] Change bytecode offset mapping and introduce iterator. > > Previously, we recorded pairs of (bytecode offset, sparkplug pc) to > create a mapping of bytecode offset <-> sparkplug pc. > These pairs were only recorded after builtin/runtime calls. > In preparation for deoptimizing to Sparkplug, we need a more precise > mapping. > With this CL, we record positions for every bytecode. Instead of storing > a pair of (bytecode offset, sparkplug pc), we store only the pc, > calculating the bytecode offset from the index in the mapping table. > For easier use an iterator to access the mapping is introduced. > > Drive-by: Reduce sampling interval in cpu-profiler cctest to get rid of > flaky failures. > > Bug: v8:11420, v8:11429 > Change-Id: I36a9171f43a574eb67880cbca6cf9ff7ab291e60 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2720189 > Reviewed-by: Victor Gomes <victorgomes@chromium.org> > Reviewed-by: Camillo Bruni <cbruni@chromium.org> > Auto-Submit: Patrick Thier <pthier@chromium.org> > Commit-Queue: Patrick Thier <pthier@chromium.org> > Cr-Commit-Position: refs/heads/master@{#73186} Bug: v8:11420 Bug: v8:11429 Change-Id: Ie71e7ce234e7b9ab9a2ec99a983e9900f35baa44 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2735397 Auto-Submit: Maya Lekova <mslekova@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#73187}
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