d43139d41d
Follow-up CL for e9024ad26c
.
Bug: v8:7748
Change-Id: I3a05b6acb382f51cccf87022a59278a16a464255
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4177100
Auto-Submit: Matthias Liedtke <mliedtke@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85368}
576 lines
25 KiB
C++
576 lines
25 KiB
C++
// Copyright 2020 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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#include "src/wasm/canonical-types.h"
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#include "src/wasm/wasm-subtyping.h"
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#include "test/common/flag-utils.h"
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#include "test/common/wasm/flag-utils.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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namespace wasm {
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namespace subtyping_unittest {
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class WasmSubtypingTest : public TestWithPlatform {};
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using FieldInit = std::pair<ValueType, bool>;
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constexpr ValueType ref(uint32_t index) { return ValueType::Ref(index); }
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constexpr ValueType refNull(uint32_t index) {
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return ValueType::RefNull(index);
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}
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FieldInit mut(ValueType type) { return FieldInit(type, true); }
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FieldInit immut(ValueType type) { return FieldInit(type, false); }
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void DefineStruct(WasmModule* module, std::initializer_list<FieldInit> fields,
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uint32_t supertype = kNoSuperType, bool is_final = false,
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bool in_singleton_rec_group = true) {
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StructType::Builder builder(&module->signature_zone,
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static_cast<uint32_t>(fields.size()));
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for (FieldInit field : fields) {
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builder.AddField(field.first, field.second);
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}
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module->add_struct_type(builder.Build(), supertype, is_final);
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if (in_singleton_rec_group) {
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 1);
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}
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}
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void DefineArray(WasmModule* module, FieldInit element_type,
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uint32_t supertype = kNoSuperType, bool is_final = false,
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bool in_singleton_rec_group = true) {
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module->add_array_type(module->signature_zone.New<ArrayType>(
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element_type.first, element_type.second),
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supertype, is_final);
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if (in_singleton_rec_group) {
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 1);
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}
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}
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void DefineSignature(WasmModule* module,
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std::initializer_list<ValueType> params,
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std::initializer_list<ValueType> returns,
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uint32_t supertype = kNoSuperType, bool is_final = false,
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bool in_singleton_rec_group = true) {
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module->add_signature(
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FunctionSig::Build(&module->signature_zone, returns, params), supertype,
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is_final);
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if (in_singleton_rec_group) {
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 1);
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}
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}
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TEST_F(WasmSubtypingTest, Subtyping) {
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FLAG_SCOPE(experimental_wasm_gc);
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v8::internal::AccountingAllocator allocator;
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WasmModule module1_;
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WasmModule module2_;
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WasmModule* module1 = &module1_;
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WasmModule* module2 = &module2_;
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// Set up two identical modules.
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for (WasmModule* module : {module1, module2}) {
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/* 0 */ DefineStruct(module, {mut(ref(2)), immut(refNull(2))});
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/* 1 */ DefineStruct(module, {mut(ref(2)), immut(ref(2))}, 0);
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/* 2 */ DefineArray(module, immut(ref(0)));
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/* 3 */ DefineArray(module, immut(ref(1)), 2);
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/* 4 */ DefineStruct(module, {mut(ref(2)), immut(ref(3)), immut(kWasmF64)},
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1);
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/* 5 */ DefineStruct(module, {mut(refNull(2)), immut(ref(2))});
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/* 6 */ DefineArray(module, mut(kWasmI32));
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/* 7 */ DefineArray(module, immut(kWasmI32));
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/* 8 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(8))});
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/* 9 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(8))}, 8);
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/* 10 */ DefineSignature(module, {}, {});
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/* 11 */ DefineSignature(module, {kWasmI32}, {kWasmI32});
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/* 12 */ DefineSignature(module, {kWasmI32, kWasmI32}, {kWasmI32});
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/* 13 */ DefineSignature(module, {ref(1)}, {kWasmI32});
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/* 14 */ DefineSignature(module, {ref(0)}, {kWasmI32}, 13);
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/* 15 */ DefineSignature(module, {ref(0)}, {ref(4)}, 16);
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/* 16 */ DefineSignature(module, {ref(0)}, {ref(0)});
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/* 17 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(17))});
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// Rec. group.
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/* 18 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(17))}, 17,
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false);
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/* 19 */ DefineArray(module, {mut(refNull(21))}, kNoSuperType, false,
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false);
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/* 20 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, kNoSuperType,
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false, false);
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/* 21 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, 20, false, false);
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 4);
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// Identical rec. group.
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/* 22 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(17))}, 17,
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false, false);
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/* 23 */ DefineArray(module, {mut(refNull(25))}, kNoSuperType, false,
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false);
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/* 24 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, kNoSuperType,
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false, false);
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/* 25 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, 24, false, false);
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 4);
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// Nonidentical rec. group: the last function extends a type outside the
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// recursive group.
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/* 26 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(17))}, 17,
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false, false);
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/* 27 */ DefineArray(module, {mut(refNull(29))}, kNoSuperType, false,
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false);
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/* 28 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, kNoSuperType,
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false, false);
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/* 29 */ DefineSignature(module, {kWasmI32}, {kWasmI32}, 20, false, false);
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GetTypeCanonicalizer()->AddRecursiveGroup(module, 4);
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/* 30 */ DefineStruct(module, {mut(kWasmI32), immut(refNull(18))}, 18);
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/* 31 */ DefineStruct(
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module, {mut(ref(2)), immut(refNull(2)), immut(kWasmS128)}, 1);
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// Final types
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/* 32 */ DefineStruct(module, {mut(kWasmI32)}, kNoSuperType, true);
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/* 33 */ DefineStruct(module, {mut(kWasmI32), mut(kWasmI64)}, 32, true);
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/* 34 */ DefineStruct(module, {mut(kWasmI32)}, kNoSuperType, true);
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/* 35 */ DefineStruct(module, {mut(kWasmI32)}, kNoSuperType, false);
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}
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constexpr ValueType numeric_types[] = {kWasmI32, kWasmI64, kWasmF32, kWasmF64,
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kWasmS128};
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constexpr ValueType ref_types[] = {
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kWasmFuncRef, kWasmEqRef, // --
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kWasmStructRef, kWasmArrayRef, // --
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kWasmI31Ref, kWasmAnyRef, // --
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kWasmExternRef, kWasmNullExternRef, // --
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kWasmNullRef, kWasmNullFuncRef, // --
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kWasmStringRef, kWasmStringViewIter, // --
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refNull(0), ref(0), // struct
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refNull(2), ref(2), // array
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refNull(11), ref(11) // signature
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};
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// Some macros to help managing types and modules.
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#define SUBTYPE(type1, type2) \
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EXPECT_TRUE(IsSubtypeOf(type1, type2, module1, module))
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#define SUBTYPE_IFF(type1, type2, condition) \
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EXPECT_EQ(IsSubtypeOf(type1, type2, module1, module), condition)
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#define NOT_SUBTYPE(type1, type2) \
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EXPECT_FALSE(IsSubtypeOf(type1, type2, module1, module))
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// Use only with indexed types.
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#define VALID_SUBTYPE(type1, type2) \
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EXPECT_TRUE(ValidSubtypeDefinition(type1.ref_index(), type2.ref_index(), \
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module1, module)); \
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EXPECT_TRUE(IsSubtypeOf(type1, type2, module1, module));
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#define NOT_VALID_SUBTYPE(type1, type2) \
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EXPECT_FALSE(ValidSubtypeDefinition(type1.ref_index(), type2.ref_index(), \
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module1, module));
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#define IDENTICAL(index1, index2) \
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EXPECT_TRUE(EquivalentTypes(ValueType::RefNull(index1), \
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ValueType::RefNull(index2), module1, module));
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#define DISTINCT(index1, index2) \
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EXPECT_FALSE(EquivalentTypes(ValueType::RefNull(index1), \
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ValueType::RefNull(index2), module1, module));
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// For union and intersection, we have a version that also checks the module,
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// and one that does not.
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#define UNION(type1, type2, type_result) \
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EXPECT_EQ(Union(type1, type2, module1, module).type, type_result)
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#define UNION_M(type1, type2, type_result, module_result) \
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EXPECT_EQ(Union(type1, type2, module1, module), \
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TypeInModule(type_result, module_result))
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#define INTERSECTION(type1, type2, type_result) \
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EXPECT_EQ(Intersection(type1, type2, module1, module).type, type_result)
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#define INTERSECTION_M(type1, type2, type_result, module_result) \
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EXPECT_EQ(Intersection(type1, type2, module1, module), \
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TypeInModule(type_result, module_result))
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for (WasmModule* module : {module1, module2}) {
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// Type judgements across modules should work the same as within one module.
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// Value types are unrelated, except if they are equal.
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for (ValueType subtype : numeric_types) {
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for (ValueType supertype : numeric_types) {
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SUBTYPE_IFF(subtype, supertype, subtype == supertype);
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}
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}
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// Value types are unrelated with reference types.
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for (ValueType value_type : numeric_types) {
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for (ValueType ref_type : ref_types) {
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NOT_SUBTYPE(value_type, ref_type);
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NOT_SUBTYPE(ref_type, value_type);
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}
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}
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for (ValueType ref_type : ref_types) {
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const bool is_extern =
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ref_type == kWasmExternRef || ref_type == kWasmNullExternRef;
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const bool is_any_func = ref_type == kWasmFuncRef ||
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ref_type == kWasmNullFuncRef ||
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ref_type == refNull(11) || ref_type == ref(11);
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const bool is_string_view = ref_type == kWasmStringViewIter ||
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ref_type == kWasmStringViewWtf8 ||
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ref_type == kWasmStringViewWtf16;
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SCOPED_TRACE("ref_type: " + ref_type.name());
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// Concrete reference types, i31ref, structref and arrayref are subtypes
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// of eqref, externref/funcref/anyref/functions are not.
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SUBTYPE_IFF(ref_type, kWasmEqRef,
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ref_type != kWasmAnyRef && !is_any_func && !is_extern &&
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!is_string_view && ref_type != kWasmStringRef);
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// Struct types are subtypes of structref.
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SUBTYPE_IFF(ref_type, kWasmStructRef,
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ref_type == kWasmStructRef || ref_type == kWasmNullRef ||
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ref_type == ref(0) || ref_type == refNull(0));
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// Array types are subtypes of arrayref.
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SUBTYPE_IFF(ref_type, kWasmArrayRef,
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ref_type == kWasmArrayRef || ref_type == ref(2) ||
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ref_type == kWasmNullRef || ref_type == refNull(2));
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// Functions are subtypes of funcref.
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SUBTYPE_IFF(ref_type, kWasmFuncRef, is_any_func);
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// Each reference type is a subtype of itself.
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SUBTYPE(ref_type, ref_type);
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// Each non-func, non-extern, non-string-view, non-string-iter reference
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// type is a subtype of anyref.
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SUBTYPE_IFF(ref_type, kWasmAnyRef,
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!is_any_func && !is_extern && !is_string_view);
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// Only anyref is a subtype of anyref.
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SUBTYPE_IFF(kWasmAnyRef, ref_type, ref_type == kWasmAnyRef);
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// Only externref and nullexternref are subtypes of externref.
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SUBTYPE_IFF(ref_type, kWasmExternRef, is_extern);
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// Only nullexternref is a subtype of nullexternref.
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SUBTYPE_IFF(ref_type, kWasmNullExternRef, ref_type == kWasmNullExternRef);
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// Each nullable non-func, non-extern reference type is a supertype of
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// nullref.
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SUBTYPE_IFF(kWasmNullRef, ref_type,
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ref_type.is_nullable() && !is_any_func && !is_extern);
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// Only nullref is a subtype of nullref.
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SUBTYPE_IFF(ref_type, kWasmNullRef, ref_type == kWasmNullRef);
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// Only nullable funcs are supertypes of nofunc.
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SUBTYPE_IFF(kWasmNullFuncRef, ref_type,
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ref_type.is_nullable() && is_any_func);
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// Only nullfuncref is a subtype of nullfuncref.
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SUBTYPE_IFF(ref_type, kWasmNullFuncRef, ref_type == kWasmNullFuncRef);
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// Make sure symmetric relations are symmetric.
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for (ValueType ref_type2 : ref_types) {
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if (ref_type == ref_type2) {
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EXPECT_TRUE(EquivalentTypes(ref_type, ref_type2, module, module1));
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EXPECT_TRUE(EquivalentTypes(ref_type2, ref_type, module1, module));
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} else {
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EXPECT_FALSE(EquivalentTypes(ref_type, ref_type2, module, module1));
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EXPECT_FALSE(EquivalentTypes(ref_type2, ref_type, module1, module));
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}
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}
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}
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// The rest of ref. types are unrelated.
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for (ValueType type_1 : {kWasmFuncRef, kWasmI31Ref, kWasmArrayRef}) {
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for (ValueType type_2 : {kWasmFuncRef, kWasmI31Ref, kWasmArrayRef}) {
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SUBTYPE_IFF(type_1, type_2, type_1 == type_2);
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}
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}
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// Unrelated refs are unrelated.
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NOT_VALID_SUBTYPE(ref(0), ref(2));
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NOT_VALID_SUBTYPE(refNull(3), refNull(1));
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// ref is a subtype of ref null for the same struct/array.
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VALID_SUBTYPE(ref(0), refNull(0));
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VALID_SUBTYPE(ref(2), refNull(2));
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// ref null is not a subtype of ref for the same struct/array.
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NOT_SUBTYPE(refNull(0), ref(0));
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NOT_SUBTYPE(refNull(2), ref(2));
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// ref is a subtype of ref null if the same is true for the underlying
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// structs/arrays.
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VALID_SUBTYPE(ref(3), refNull(2));
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// Prefix subtyping for structs.
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VALID_SUBTYPE(refNull(4), refNull(0));
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// Mutable fields are invariant.
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NOT_VALID_SUBTYPE(ref(0), ref(5));
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// Immutable fields are covariant.
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VALID_SUBTYPE(ref(1), ref(0));
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// Prefix subtyping + immutable field covariance for structs.
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VALID_SUBTYPE(refNull(4), refNull(1));
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// No subtyping between mutable/immutable fields.
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NOT_VALID_SUBTYPE(ref(7), ref(6));
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NOT_VALID_SUBTYPE(ref(6), ref(7));
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// Recursive types.
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VALID_SUBTYPE(ref(9), ref(8));
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// Identical rtts are subtypes of each other.
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SUBTYPE(ValueType::Rtt(5), ValueType::Rtt(5));
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// Rtts of unrelated types are unrelated.
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NOT_SUBTYPE(ValueType::Rtt(1), ValueType::Rtt(2));
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// Rtts of subtypes are not related.
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NOT_SUBTYPE(ValueType::Rtt(1), ValueType::Rtt(0));
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// Function subtyping;
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// Unrelated function types are unrelated.
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NOT_VALID_SUBTYPE(ref(10), ref(11));
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// Function type with different parameter counts are unrelated.
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NOT_VALID_SUBTYPE(ref(12), ref(11));
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// Parameter contravariance holds.
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VALID_SUBTYPE(ref(14), ref(13));
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// Return type covariance holds.
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VALID_SUBTYPE(ref(15), ref(16));
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// Identical types are subtype-related.
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VALID_SUBTYPE(ref(10), ref(10));
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VALID_SUBTYPE(ref(11), ref(11));
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// Canonicalization tests.
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// Groups should only be canonicalized to identical groups.
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IDENTICAL(18, 22);
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IDENTICAL(19, 23);
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IDENTICAL(20, 24);
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IDENTICAL(21, 25);
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DISTINCT(18, 26);
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DISTINCT(19, 27);
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DISTINCT(20, 28);
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DISTINCT(21, 29);
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// A type should not be canonicalized to an identical one with a different
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// group structure.
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DISTINCT(18, 17);
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// A subtype should also be subtype of an equivalent type.
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VALID_SUBTYPE(ref(30), ref(18));
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VALID_SUBTYPE(ref(30), ref(22));
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NOT_SUBTYPE(ref(30), ref(26));
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// Final types
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// A type is not a valid subtype of a final type.
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NOT_VALID_SUBTYPE(ref(33), ref(32));
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IDENTICAL(32, 34);
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// A final and a non-final
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DISTINCT(32, 35);
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// Rtts of identical types are subtype-related.
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SUBTYPE(ValueType::Rtt(8), ValueType::Rtt(17));
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// Unions and intersections.
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// Distinct numeric types are unrelated.
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for (ValueType type1 : numeric_types) {
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for (ValueType type2 : numeric_types) {
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UNION(type1, type2, (type1 == type2 ? type1 : kWasmBottom));
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INTERSECTION(type1, type2, (type1 == type2 ? type1 : kWasmBottom));
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}
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}
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// Numeric and reference types are unrelated.
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for (ValueType type1 : numeric_types) {
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for (ValueType type2 : ref_types) {
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UNION(type1, type2, kWasmBottom);
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INTERSECTION(type1, type2, kWasmBottom);
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}
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}
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// Reference type vs. itself and anyref.
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for (ValueType type : ref_types) {
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SCOPED_TRACE(type.name());
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UNION(type, type, type);
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INTERSECTION(type, type, type);
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if (type == kWasmStringViewIter || type == kWasmStringViewWtf8 ||
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type == kWasmStringViewWtf16) {
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// String view and string iter aren't subtypes of any but have the same
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// null sentinel nullref (ref null none).
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INTERSECTION(type, kWasmAnyRef, kWasmNullRef);
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continue;
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}
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if (type == kWasmFuncRef || type == kWasmNullFuncRef || type == ref(11) ||
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type == refNull(11) || type == kWasmExternRef ||
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type == kWasmNullExternRef) {
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// func and extern types don't share the same type hierarchy as anyref.
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INTERSECTION(type, kWasmAnyRef, kWasmBottom);
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continue;
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}
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UNION(kWasmAnyRef, type, kWasmAnyRef);
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INTERSECTION(kWasmAnyRef, type, type);
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UNION(kWasmAnyRef.AsNonNull(), type,
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type.is_nullable() ? kWasmAnyRef : kWasmAnyRef.AsNonNull());
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INTERSECTION(kWasmAnyRef.AsNonNull(), type,
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type != kWasmNullRef ? type.AsNonNull() : kWasmBottom);
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}
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// Abstract types vs abstract types.
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UNION(kWasmEqRef, kWasmStructRef, kWasmEqRef);
|
|
UNION(kWasmEqRef, kWasmI31Ref, kWasmEqRef);
|
|
UNION(kWasmEqRef, kWasmArrayRef, kWasmEqRef);
|
|
UNION(kWasmEqRef, kWasmNullRef, kWasmEqRef);
|
|
UNION(kWasmStructRef, kWasmI31Ref, kWasmEqRef);
|
|
UNION(kWasmStructRef, kWasmArrayRef, kWasmEqRef);
|
|
UNION(kWasmStructRef, kWasmNullRef, kWasmStructRef.AsNullable());
|
|
UNION(kWasmI31Ref.AsNonNull(), kWasmArrayRef.AsNonNull(),
|
|
kWasmEqRef.AsNonNull());
|
|
UNION(kWasmI31Ref, kWasmNullRef, kWasmI31Ref.AsNullable());
|
|
UNION(kWasmArrayRef, kWasmNullRef, kWasmArrayRef.AsNullable());
|
|
UNION(kWasmStructRef.AsNonNull(), kWasmI31Ref.AsNonNull(),
|
|
kWasmEqRef.AsNonNull());
|
|
UNION(kWasmI31Ref.AsNonNull(), kWasmArrayRef, kWasmEqRef);
|
|
UNION(kWasmAnyRef, kWasmNullRef, kWasmAnyRef);
|
|
UNION(kWasmExternRef, kWasmNullExternRef, kWasmExternRef);
|
|
UNION(kWasmFuncRef, kWasmNullFuncRef, kWasmFuncRef);
|
|
UNION(kWasmFuncRef, kWasmStructRef, kWasmBottom);
|
|
UNION(kWasmFuncRef, kWasmArrayRef, kWasmBottom);
|
|
UNION(kWasmFuncRef, kWasmAnyRef, kWasmBottom);
|
|
UNION(kWasmFuncRef, kWasmEqRef, kWasmBottom);
|
|
UNION(kWasmStringRef, kWasmAnyRef, kWasmAnyRef);
|
|
UNION(kWasmStringRef, kWasmStructRef, kWasmAnyRef);
|
|
UNION(kWasmStringRef, kWasmArrayRef, kWasmAnyRef);
|
|
UNION(kWasmStringRef, kWasmFuncRef, kWasmBottom);
|
|
UNION(kWasmStringViewIter, kWasmStringRef, kWasmBottom);
|
|
UNION(kWasmStringViewWtf8, kWasmStringRef, kWasmBottom);
|
|
UNION(kWasmStringViewWtf16, kWasmStringRef, kWasmBottom);
|
|
UNION(kWasmStringViewIter, kWasmAnyRef, kWasmBottom);
|
|
UNION(kWasmStringViewWtf8, kWasmAnyRef, kWasmBottom);
|
|
UNION(kWasmStringViewWtf16, kWasmAnyRef, kWasmBottom);
|
|
UNION(kWasmNullFuncRef, kWasmEqRef, kWasmBottom);
|
|
|
|
INTERSECTION(kWasmExternRef, kWasmEqRef, kWasmBottom);
|
|
INTERSECTION(kWasmExternRef, kWasmStructRef, kWasmBottom);
|
|
INTERSECTION(kWasmExternRef, kWasmI31Ref.AsNonNull(), kWasmBottom);
|
|
INTERSECTION(kWasmExternRef, kWasmArrayRef, kWasmBottom);
|
|
INTERSECTION(kWasmExternRef, kWasmNullRef, kWasmBottom);
|
|
INTERSECTION(kWasmExternRef, kWasmFuncRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmEqRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmStructRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmI31Ref, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmArrayRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmNullRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullExternRef, kWasmExternRef, kWasmNullExternRef);
|
|
INTERSECTION(kWasmNullExternRef, kWasmExternRef.AsNonNull(), kWasmBottom);
|
|
|
|
INTERSECTION(kWasmFuncRef, kWasmEqRef, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, kWasmStructRef, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, kWasmI31Ref.AsNonNull(), kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, kWasmArrayRef, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, kWasmNullRef, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, kWasmNullExternRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmEqRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmStructRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmI31Ref, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmArrayRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmNullRef, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmFuncRef, kWasmNullFuncRef);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmFuncRef.AsNonNull(), kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, kWasmNullExternRef, kWasmBottom);
|
|
|
|
INTERSECTION(kWasmEqRef, kWasmStructRef, kWasmStructRef);
|
|
INTERSECTION(kWasmEqRef, kWasmI31Ref, kWasmI31Ref);
|
|
INTERSECTION(kWasmEqRef, kWasmArrayRef, kWasmArrayRef);
|
|
INTERSECTION(kWasmEqRef, kWasmNullRef, kWasmNullRef);
|
|
INTERSECTION(kWasmEqRef, kWasmFuncRef, kWasmBottom);
|
|
INTERSECTION(kWasmStructRef, kWasmI31Ref, kWasmNullRef);
|
|
INTERSECTION(kWasmStructRef, kWasmArrayRef, kWasmNullRef);
|
|
INTERSECTION(kWasmStructRef, kWasmNullRef, kWasmNullRef);
|
|
INTERSECTION(kWasmI31Ref, kWasmArrayRef, kWasmNullRef);
|
|
INTERSECTION(kWasmI31Ref.AsNonNull(), kWasmNullRef, kWasmBottom);
|
|
INTERSECTION(kWasmArrayRef.AsNonNull(), kWasmNullRef, kWasmBottom);
|
|
|
|
ValueType struct_type = ref(0);
|
|
ValueType array_type = ref(2);
|
|
ValueType function_type = ref(11);
|
|
|
|
// Abstract vs indexed types.
|
|
UNION(kWasmFuncRef, function_type, kWasmFuncRef);
|
|
UNION(kWasmFuncRef, struct_type, kWasmBottom);
|
|
UNION(kWasmFuncRef, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, struct_type, kWasmBottom);
|
|
INTERSECTION(kWasmFuncRef, array_type, kWasmBottom);
|
|
INTERSECTION_M(kWasmFuncRef, function_type, function_type, module);
|
|
|
|
UNION(kWasmNullFuncRef, function_type, function_type.AsNullable());
|
|
UNION(kWasmNullFuncRef, struct_type, kWasmBottom);
|
|
UNION(kWasmNullFuncRef, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, struct_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, struct_type.AsNullable(), kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, array_type.AsNullable(), kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, function_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullFuncRef, function_type.AsNullable(),
|
|
kWasmNullFuncRef);
|
|
|
|
UNION(kWasmEqRef, struct_type, kWasmEqRef);
|
|
UNION(kWasmEqRef, array_type, kWasmEqRef);
|
|
INTERSECTION(kWasmEqRef, struct_type, struct_type);
|
|
INTERSECTION(kWasmEqRef, array_type, array_type);
|
|
INTERSECTION(kWasmEqRef, function_type, kWasmBottom);
|
|
|
|
UNION(kWasmStructRef, struct_type, kWasmStructRef);
|
|
UNION(kWasmStructRef, array_type, kWasmEqRef);
|
|
UNION(kWasmStructRef, function_type, kWasmBottom);
|
|
INTERSECTION_M(kWasmStructRef, struct_type, struct_type, module);
|
|
INTERSECTION(kWasmStructRef, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmStructRef, function_type, kWasmBottom);
|
|
|
|
UNION(kWasmI31Ref, struct_type, kWasmEqRef);
|
|
UNION(kWasmI31Ref, array_type, kWasmEqRef);
|
|
INTERSECTION(kWasmI31Ref, struct_type, kWasmBottom);
|
|
INTERSECTION(kWasmI31Ref, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmI31Ref, function_type, kWasmBottom);
|
|
|
|
UNION(kWasmArrayRef, struct_type, kWasmEqRef);
|
|
UNION(kWasmArrayRef, array_type, kWasmArrayRef);
|
|
UNION(kWasmArrayRef, function_type, kWasmBottom);
|
|
INTERSECTION(kWasmArrayRef, struct_type, kWasmBottom);
|
|
INTERSECTION_M(kWasmArrayRef, array_type, array_type, module);
|
|
INTERSECTION(kWasmArrayRef, function_type, kWasmBottom);
|
|
|
|
UNION_M(kWasmNullRef, struct_type, struct_type.AsNullable(), module);
|
|
UNION_M(kWasmNullRef, array_type, array_type.AsNullable(), module);
|
|
UNION(kWasmNullRef, function_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullRef, struct_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullRef, array_type, kWasmBottom);
|
|
INTERSECTION(kWasmNullRef, function_type, kWasmBottom);
|
|
|
|
UNION(struct_type, kWasmStringRef, kWasmAnyRef);
|
|
UNION(array_type, kWasmStringRef, kWasmAnyRef);
|
|
UNION(function_type, kWasmStringRef, kWasmBottom);
|
|
|
|
// Indexed types of different kinds.
|
|
UNION(struct_type, array_type, kWasmEqRef.AsNonNull());
|
|
INTERSECTION(struct_type, array_type, kWasmBottom);
|
|
INTERSECTION(struct_type, function_type, kWasmBottom);
|
|
INTERSECTION(array_type, function_type, kWasmBottom);
|
|
|
|
// Nullable vs. non-nullable.
|
|
UNION(struct_type, struct_type.AsNullable(), struct_type.AsNullable());
|
|
INTERSECTION(struct_type, struct_type.AsNullable(), struct_type);
|
|
UNION(kWasmStructRef, kWasmStructRef.AsNullable(),
|
|
kWasmStructRef.AsNullable());
|
|
INTERSECTION(kWasmStructRef, kWasmStructRef.AsNullable(), kWasmStructRef);
|
|
|
|
// Concrete types of the same kind.
|
|
// Subtyping relation.
|
|
UNION_M(refNull(4), ref(1), refNull(1), module1);
|
|
INTERSECTION_M(refNull(4), ref(1), ref(4), module1);
|
|
INTERSECTION_M(refNull(1), refNull(4), refNull(4), module);
|
|
// Common ancestor.
|
|
UNION_M(ref(4), ref(31), ref(1), module1);
|
|
INTERSECTION(ref(4), ref(31), kWasmBottom);
|
|
// No common ancestor.
|
|
UNION(ref(6), refNull(2), kWasmArrayRef.AsNullable());
|
|
INTERSECTION(ref(6), refNull(2), kWasmBottom);
|
|
UNION(ref(0), ref(17), kWasmStructRef.AsNonNull());
|
|
INTERSECTION(ref(0), ref(17), kWasmBottom);
|
|
UNION(ref(10), refNull(11), kWasmFuncRef);
|
|
INTERSECTION(ref(10), refNull(11), kWasmBottom);
|
|
}
|
|
#undef SUBTYPE
|
|
#undef NOT_SUBTYPE
|
|
#undef SUBTYPE_IFF
|
|
#undef VALID_SUBTYPE
|
|
#undef NOT_VALID_SUBTYPE
|
|
#undef IDENTICAL
|
|
#undef DISTINCT
|
|
#undef UNION
|
|
#undef UNION_M
|
|
#undef INTERSECTION
|
|
#undef INTERSECTION_M
|
|
}
|
|
|
|
} // namespace subtyping_unittest
|
|
} // namespace wasm
|
|
} // namespace internal
|
|
} // namespace v8
|