f30c268173
This reverts commit b77deeca4b.
Reason for revert: MSVC compile fails: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64%20-%20msvc/16535/overview
Original change's description:
> [wasm-gc] Remove abstract rtts
>
> In the latest wasm-gc spec, rtts of abstract types are no longer
> allowed. Consequently, canonical rtts of concrete types always have
> a depth of 0.
>
> Changes:
> - Change the immediate argument of rtts to a type index over a heap
> type. Abstract it with TypeIndexImmediate in function body decoding.
> This affects:
> value_type.h, read_value_type(), decoding of relevant opcodes,
> wasm subtyping, WasmInitExpr, consume_init_expr(), and
> wasm-module-builder.cc.
> - In function-body-decoder-impl.h, update rtt.canon to always produce
> an rtt of depth 0.
> - Pass a unit32_t type index over a HeapType to all rtt-related
> utilities.
> - Remove infrastructure for abstract-type rtts from the wasm compilers,
> setup-heap-internal.cc, roots.h, and module-instantiate.cc.
> - Remove ObjectReferenceKnowledge::rtt_is_i31. Remove related branches
> from ref.test, ref.cast and br_on_cast implementations in the wasm
> compilers.
> - Remove unused 'parent' field from WasmTypeInfo.
> - Make the parent argument optional in NewWasmTypeInfo, CreateStructMap,
> and CreateArrayMap.
> - Use more convenient arguments in IsHeapSubtypeOf.
> - Update tests.
>
> Bug: v8:7748
> Change-Id: Ib45efe0741e6558c9b291fc8b4a75ae303146bdc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2642248
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#72321}
TBR=ulan@chromium.org,jkummerow@chromium.org,manoskouk@chromium.org
Change-Id: I2f0d97f1a34f7c81c5a97d7c37925cb84c66eea3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7748
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2650206
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72322}
125 lines
3.4 KiB
Plaintext
125 lines
3.4 KiB
Plaintext
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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@useParentTypeChecker
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type PodArrayOfWasmValueType extends ByteArray
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constexpr 'PodArray<wasm::ValueType>';
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@useParentTypeChecker
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type ManagedWasmNativeModule extends Foreign
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constexpr 'Managed<wasm::NativeModule>';
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type WasmValueType extends uint8 constexpr 'wasm::ValueType::Kind';
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extern class WasmInstanceObject extends JSObject;
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extern class WasmExportedFunctionData extends Struct {
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wrapper_code: Code;
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instance: WasmInstanceObject;
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jump_table_offset: Smi;
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function_index: Smi;
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signature: Foreign;
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wrapper_budget: Smi;
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// The remaining fields are for fast calling from C++. The contract is
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// that they are lazily populated, and either all will be present or none.
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c_wrapper_code: Object;
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wasm_call_target: Smi|Foreign;
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packed_args_size: Smi;
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}
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extern class WasmJSFunctionData extends Struct {
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callable: JSReceiver;
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wrapper_code: Code;
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wasm_to_js_wrapper_code: Code;
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serialized_return_count: Smi;
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serialized_parameter_count: Smi;
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serialized_signature: PodArrayOfWasmValueType;
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}
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@export
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class WasmCapiFunctionData extends HeapObject {
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call_target: RawPtr;
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embedder_data: Foreign; // Managed<wasm::FuncData>
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wrapper_code: Code;
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serialized_signature: PodArrayOfWasmValueType;
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}
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extern class WasmIndirectFunctionTable extends Struct {
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size: uint32;
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@if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;
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@ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;
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sig_ids: RawPtr;
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targets: RawPtr;
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managed_native_allocations: Foreign|Undefined;
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refs: FixedArray;
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}
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@generateCppClass
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extern class WasmExceptionTag extends Struct {
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// Note that this index is only useful for debugging purposes and it is not
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// unique across modules. The GC however does not allow objects without at
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// least one field, hence this also serves as a padding field for now.
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index: Smi;
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}
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extern class WasmModuleObject extends JSObject {
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native_module: ManagedWasmNativeModule;
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export_wrappers: FixedArray;
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script: Script;
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}
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extern class WasmTableObject extends JSObject {
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instance: WasmInstanceObject|Undefined;
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entries: FixedArray;
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current_length: Smi;
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maximum_length: Smi|HeapNumber|Undefined;
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dispatch_tables: FixedArray;
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raw_type: Smi;
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}
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extern class WasmMemoryObject extends JSObject {
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array_buffer: JSArrayBuffer;
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maximum_pages: Smi;
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instances: WeakArrayList|Undefined;
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}
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extern class WasmGlobalObject extends JSObject {
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instance: WasmInstanceObject|Undefined;
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untagged_buffer: JSArrayBuffer|Undefined;
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tagged_buffer: FixedArray|Undefined;
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offset: Smi;
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raw_type: Smi;
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is_mutable: Smi;
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}
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extern class WasmExceptionObject extends JSObject {
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serialized_signature: PodArrayOfWasmValueType;
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exception_tag: HeapObject;
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}
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type WasmExportedFunction extends JSFunction;
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extern class AsmWasmData extends Struct {
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managed_native_module: ManagedWasmNativeModule;
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export_wrappers: FixedArray;
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uses_bitset: HeapNumber;
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}
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@generateCppClass
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extern class WasmTypeInfo extends Foreign {
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parent: Map;
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supertypes: FixedArray;
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subtypes: ArrayList;
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}
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@generateCppClass
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extern class WasmStruct extends HeapObject {
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}
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@generateCppClass
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extern class WasmArray extends HeapObject {
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length: uint32;
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@if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;
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@ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;
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}
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