pulley/cranelift: opcode fusion at call_indirect lazy-init dispatch tail#13447

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matthargett wants to merge 12 commits into

bytecodealliance:mainfrom

rebeckerspecialties:pulley-fusion-dispatch-tail-upstream

Commits on Jul 10, 2026

environ: track per-table mutability bit during translation
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cranelift: lower constant-index call_indirect to direct call
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cranelift: elide indirect-call sig check on uniform-typed immutable tables
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cranelift: elide funcref-null check when no precomputed slot is null
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cranelift: skip per-dispatch table-bound load when table cannot grow
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environ: integration tests for analyze_table_mutability
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soundness fixes for the call_indirect optimizations
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port call_indirect elisions to upstream table_initialization model
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tests: runtime coverage for call_indirect on immutable tables
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pulley: add call_indirect{1,2,3,4} fused indirect-call ops
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cranelift/pulley: pass first 4 indirect-call args via call_indirectN
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tests: runtime coverage for call_indirectN arg bundling
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