feat: spec-testsuite integration, optimizer spilling, i32.popcnt#56
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feat: spec-testsuite integration, optimizer spilling, i32.popcnt#56
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Optimizer register spilling: - Added spill-to-stack when all 9 temp registers are exhausted - Oldest live non-local vreg evicted to stack via STR/LDR - Spill frame prologue/epilogue (SUB SP/ADD SP) inserted as needed - Fixes panic in 8 spec files (block, loop, if, call, labels, ref_*) i32.popcnt: - Wired existing Popcnt pseudo-op to instruction selector - Previously returned error despite encoder already implementing it wast_multi_func_test macro: - Added --no-optimize parameter support for heavy register pressure files Implements: FR-002 Trace: skip Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
76 wast_multi_func_test targets organized by category: i32, i64, f32, f64, control flow, memory, tables, functions, data/bulk, traps, and reference types. References .wast files from the spec-testsuite submodule via //tests/spec-testsuite: labels. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Official WASM Spec Test Suite Integration
wast_multi_func_testBazel targets intests/spec/BUILD.bazel--no-optimizeflag added to macro for high register pressure filesOptimizer Register Spilling
optimizer_bridge.rswhen all 9 temp registers are exhaustedi32.popcnt Instruction Selection
Popcntpseudo-op (parallel bit-count algorithm) to instruction selectorTest plan
cargo test --workspace— 766+ tests, 0 failurescargo clippy --workspace --all-targets -- -D warnings— cleancargo fmt --check— clean🤖 Generated with Claude Code