[Profiler] Simplify PGOMapping a bit #60621
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Rather than re-computing the counter indices as we walk, use the indices that we've already computed as a part of MapRegionCounters. This should be NFC. Eventually we should also stop duplicating the counter arithmetic, and instead rely on the CounterExprs computed by CoverageMapping. For now I'm leaving that as follow-up work.
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@swift-ci please test |
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Rather than re-computing the counter indices as we walk, use the indices that we've already computed as a part of MapRegionCounters. This should be NFC.
Eventually we should also stop duplicating the counter arithmetic, and instead rely on the CounterExprs computed by CoverageMapping. For now I'm leaving that as follow-up work.