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Leszek Swirski authored
This is a reland of 0736599a. This is a reland of 7e1fbe8f. Original change description: > [ic] In-place Double -> Tagged transitions > > With no more MutableHeapNumber, we can make Double -> Tagged transitions > in-place, at the cost of an extra map check when accessing double fields > to make sure they are still doubles. > > Bug: v8:9606 > Change-Id: I74ff39ed6fba62ee223cd37dfe761f7d73020e1c > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743973 > Reviewed-by: Tobias Tebbi <tebbi@chromium.org> > Reviewed-by: Toon Verwaest <verwaest@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63374} TBR=verwaest@chromium.org, tebbi@chromium.org Bug: v8:9606 Change-Id: I2d1b7416064d743582f4983fb868316b7e8a4cf2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1777661Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#63499}
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