Host colectable GC references#55

Merged

andreaTP merged 25 commits into

bytecodealliance:mainfrom

andreaTP:gc-ref-interpreter-phase1

Jun 25, 2026

Commits on Jun 24, 2026

feat: store Wasm GC references as Java Objects in the interpreter
andreaTP
committed
feat: add Object-based API (callGc/applyGc) for GC reference support
andreaTP
committed
feat: remove GcRefStore — Java GC handles all Wasm GC references
andreaTP
committed
fix: interpreter GC ref handling — all 62,144 runtime tests green
andreaTP
committed
fix: compiler GC ref handling — full mvn verify passes
andreaTP
committed
fix: compiler GC ref fixes + edge case tests + stress test
andreaTP
committed
feat: externref as Object + CallResult API — spec-compliant round-trips
andreaTP
committed
refactor: strip externref compat workarounds, clean API
andreaTP
committed
refactor: delete applyGc — applyWithRefs is the only ref API
andreaTP
committed
fix: review findings — NULL_REF sentinel, apply guard, overflow
andreaTP
committed
fix: compiler boundary bugs — dual long[]+Object[] at all boundaries
andreaTP
committed
feat: annotation processor supports externref as Object
andreaTP
committed
fix: review findings — perf, multi-value, cleanup
andreaTP
committed
fix: update verifyLotsOfArgs approval template for new bytecode
andreaTP
committed
fix: remove unused variable hasRefReturn (checkstyle)
andreaTP
committed
fix: remove dead code in ModuleInterfaceCodegen (unused collections, -Werror)
andreaTP
committed
fix: PR review bugs — RETURN_CALL refs, cross-instance refs, pop() leak, perf
andreaTP
committed
fix: ARRAY_COPY isReference, Builder isGcReference, V128 slot, struct alloc
andreaTP
committed
test: add funcref array.copy test (exercises ARRAY_COPY isObjectRef fix)
andreaTP
committed
perf: direct callWithRefs dispatch in compiled Machine
andreaTP
committed
fix: callWithRefs dispatch splitting, SELECT/DROP isObjectRef, default alloc
andreaTP
committed
fix: review items — template loops, Shaded guards, codegen multi-return
andreaTP
committed

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Host colectable GC references#55

Host colectable GC references#55
andreaTP merged 25 commits into
bytecodealliance:mainfrom
andreaTP:gc-ref-interpreter-phase1

Commits on Jun 24, 2026

feat: store Wasm GC references as Java Objects in the interpreter

feat: add Object-based API (callGc/applyGc) for GC reference support

feat: remove GcRefStore — Java GC handles all Wasm GC references

fix: interpreter GC ref handling — all 62,144 runtime tests green

fix: compiler GC ref handling — full mvn verify passes

fix: compiler GC ref fixes + edge case tests + stress test

feat: externref as Object + CallResult API — spec-compliant round-trips

refactor: strip externref compat workarounds, clean API

refactor: delete applyGc — applyWithRefs is the only ref API

fix: review findings — NULL_REF sentinel, apply guard, overflow

fix: compiler boundary bugs — dual long[]+Object[] at all boundaries

feat: annotation processor supports externref as Object

fix: review findings — perf, multi-value, cleanup

fix: update verifyLotsOfArgs approval template for new bytecode

fix: remove unused variable hasRefReturn (checkstyle)

fix: remove dead code in ModuleInterfaceCodegen (unused collections, -Werror)

fix: PR review bugs — RETURN_CALL refs, cross-instance refs, pop() leak, perf

fix: ARRAY_COPY isReference, Builder isGcReference, V128 slot, struct alloc

test: add funcref array.copy test (exercises ARRAY_COPY isObjectRef fix)

perf: direct callWithRefs dispatch in compiled Machine

fix: callWithRefs dispatch splitting, SELECT/DROP isObjectRef, default alloc

fix: review items — template loops, Shaded guards, codegen multi-return

Commits on Jun 25, 2026

refactor: add builders for CallResult, WasmException, WasmStruct, WasmArray, GlobalInstance

feat: add ordered convenience methods to WasmStruct.Builder and WasmArray.Builder

refactor: remove all @SuppressWarnings("deprecation"), use builders