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LibWasm+LibWeb: Parse and validate all Wasm SIMD instructions

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This commit is contained in:
Ali Mohammad Pur 2023-06-12 13:04:22 +03:30 • committed by Ali Mohammad Pur
parent b005691497
commit 2462064fcd
13 changed files with 2474 additions and 78 deletions
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1
Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.cpp
View file

@ -330,6 +330,7 @@ InstantiationResult AbstractMachine::instantiate(Module const& module, Vector<Ex
size_t offset = 0;
result.values().first().value().visit(
[&](auto const& value) { offset = value; },
[&](u128 const&) { instantiation_result = InstantiationError { "Data segment offset returned a vector type"sv }; },
[&](Reference const&) { instantiation_result = InstantiationError { "Data segment offset returned a reference"sv }; });
if (instantiation_result.has_value() && instantiation_result->is_error())
return;

13
Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.h
View file

@ -12,6 +12,7 @@
#include <AK/OwnPtr.h>
#include <AK/Result.h>
#include <AK/StackInfo.h>
#include <AK/UFixedBigInt.h>
#include <LibWasm/Types.h>
// NOTE: Special case for Wasm::Result.
@ -74,7 +75,7 @@ public:
{
}
using AnyValueType = Variant<i32, i64, float, double, Reference>;
using AnyValueType = Variant<i32, i64, float, double, u128, Reference>;
explicit Value(AnyValueType value)
: m_value(move(value))
{
@ -111,11 +112,20 @@ public:
VERIFY(raw_value == 0);
m_value = Reference { Reference::Null { ValueType(ValueType::Kind::ExternReference) } };
break;
case ValueType::Kind::V128:
m_value = u128(0ull, bit_cast<u64>(raw_value));
break;
default:
VERIFY_NOT_REACHED();
}
}
template<SameAs<u128> T>
explicit Value(T raw_value)
: m_value(raw_value)
{
}
ALWAYS_INLINE Value(Value const& value) = default;
ALWAYS_INLINE Value(Value&& value) = default;
ALWAYS_INLINE Value& operator=(Value&& value) = default;
@ -158,6 +168,7 @@ public:
[](i64) { return ValueType::Kind::I64; },
[](float) { return ValueType::Kind::F32; },
[](double) { return ValueType::Kind::F64; },
[](u128) { return ValueType::Kind::V128; },
[&](Reference const& type) {
return type.ref().visit(
[](Reference::Func const&) { return ValueType::Kind::FunctionReference; },

1558
Userland/Libraries/LibWasm/AbstractMachine/Validator.cpp
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File diff suppressed because it is too large Load diff

13
Userland/Libraries/LibWasm/AbstractMachine/Validator.h
View file

@ -221,6 +221,17 @@ public:
return result;
}
template<auto... kinds>
ErrorOr<void, ValidationError> take_and_put(Wasm::ValueType::Kind kind, SourceLocation location = SourceLocation::current())
{
ErrorOr<void, ValidationError> result;
if (((result = take(Wasm::ValueType(kinds), location)).is_error(), ...)) {
return result;
}
append(Wasm::ValueType(kind));
return result;
}
size_t actual_size() const { return Vector<StackEntry>::size(); }
size_t size() const { return m_did_insert_unknown_entry ? static_cast<size_t>(-1) : actual_size(); }
@ -238,7 +249,7 @@ public:
};
ErrorOr<ExpressionTypeResult, ValidationError> validate(Expression const&, Vector<ValueType> const&);
ErrorOr<void, ValidationError> validate(Instruction const& instruction, Stack& stack, bool& is_constant);
template<u32 opcode>
template<u64 opcode>
ErrorOr<void, ValidationError> validate_instruction(Instruction const&, Stack& stack, bool& is_constant);
// Types