Fix performance issue with Structure.is_merge_node #1938
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How does this affect perf compared to pre-1934 ? |
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This does not seem to make any difference. |
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Structure.is_merge_nodeis called for many successors of a node and was linear in the number of predecessor, which could yield a quadratic behavior during Wasm code generation, especially after #1934 which removes some intermediate blocks (see Fiat-Crypto benchmark).