More jit profiling#188
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…ly infer shape / hidden class.
…eck length when parsing a segment the first time
If we do not inflate the names/sources, then we can compare their indices when sorting mappings rather than doing string comparisons. This is a huge boost to performance of parsing source maps, as strcmp was taking about 35% of time.
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This patch looks good to me. Good catch Nick! |
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r? @ejpbruel
A couple code clean ups and also some more big perf gains parsing source maps.
Notable gains are