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LibWasm: Implement bitmask and float conversion instructions

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(cherry picked from commit 146646b59741c1300461056e384dae50815d1621)
This commit is contained in:
Diego Frias 2024-07-17 20:40:58 -07:00 committed by Ali Mohammad Pur
parent d00e37fa20
commit c510c5375f
2 changed files with 59 additions and 8 deletions
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22
Userland/Libraries/LibWasm/AbstractMachine/BytecodeInterpreter.cpp
View file

@ -1700,24 +1700,30 @@ void BytecodeInterpreter::interpret(Configuration& configuration, InstructionPoi
return pop_and_store_lane_n<32>(configuration, instruction);
case Instructions::v128_store64_lane.value():
return pop_and_store_lane_n<64>(configuration, instruction);
case Instructions::i32x4_trunc_sat_f32x4_s.value():
return unary_operation<u128, u128, Operators::VectorFloatConvertOp<4, Operators::SaturatingTruncate<i32>>>(configuration);
case Instructions::i32x4_trunc_sat_f32x4_u.value():
return unary_operation<u128, u128, Operators::VectorFloatConvertOp<4, Operators::SaturatingTruncate<u32>>>(configuration);
case Instructions::i8x16_bitmask.value():
return unary_operation<u128, i32, Operators::VectorBitmask<16>>(configuration);
case Instructions::i16x8_bitmask.value():
return unary_operation<u128, i32, Operators::VectorBitmask<8>>(configuration);
case Instructions::i32x4_bitmask.value():
return unary_operation<u128, i32, Operators::VectorBitmask<4>>(configuration);
case Instructions::i64x2_bitmask.value():
return unary_operation<u128, i32, Operators::VectorBitmask<2>>(configuration);
case Instructions::f32x4_demote_f64x2_zero.value():
case Instructions::f64x2_promote_low_f32x4.value():
case Instructions::i8x16_bitmask.value():
case Instructions::i8x16_narrow_i16x8_s.value():
case Instructions::i8x16_narrow_i16x8_u.value():
case Instructions::i16x8_q15mulr_sat_s.value():
case Instructions::i16x8_bitmask.value():
case Instructions::i16x8_narrow_i32x4_s.value():
case Instructions::i16x8_narrow_i32x4_u.value():
case Instructions::i32x4_bitmask.value():
case Instructions::i32x4_dot_i16x8_s.value():
case Instructions::i64x2_bitmask.value():
case Instructions::i32x4_trunc_sat_f32x4_s.value():
case Instructions::i32x4_trunc_sat_f32x4_u.value():
case Instructions::f32x4_convert_i32x4_s.value():
case Instructions::f32x4_convert_i32x4_u.value():
case Instructions::i32x4_trunc_sat_f64x2_s_zero.value():
case Instructions::i32x4_trunc_sat_f64x2_u_zero.value():
case Instructions::f32x4_convert_i32x4_s.value():
case Instructions::f32x4_convert_i32x4_u.value():
case Instructions::f64x2_convert_low_i32x4_s.value():
case Instructions::f64x2_convert_low_i32x4_u.value():
dbgln_if(WASM_TRACE_DEBUG, "Instruction '{}' not implemented", instruction_name(instruction.opcode()));

45
Userland/Libraries/LibWasm/AbstractMachine/Operators.h
View file

@ -710,6 +710,23 @@ struct VectorIntegerBinaryOp {
}
};
template<size_t VectorSize>
struct VectorBitmask {
auto operator()(u128 lhs) const
{
using VectorType = NativeVectorType<128 / VectorSize, VectorSize, MakeSigned>;
auto value = bit_cast<VectorType>(lhs);
u32 result = 0;
for (size_t i = 0; i < VectorSize; ++i)
result |= static_cast<u32>(value[i] < 0) << i;
return result;
}
static StringView name() { return "bitmask"sv; }
};
template<size_t VectorSize, typename Op, template<typename> typename SetSign = MakeSigned>
struct VectorIntegerUnaryOp {
auto operator()(u128 lhs) const
@ -799,6 +816,34 @@ struct VectorFloatUnaryOp {
}
};
template<size_t VectorSize, typename Op>
struct VectorFloatConvertOp {
auto operator()(u128 lhs) const
{
using VectorInput = NativeFloatingVectorType<128, VectorSize, NativeFloatingType<128 / VectorSize>>;
using VectorResult = NativeVectorType<128 / VectorSize, VectorSize, MakeUnsigned>;
auto value = bit_cast<VectorInput>(lhs);
VectorResult result;
Op op;
for (size_t i = 0; i < VectorSize; ++i) {
result[i] = op(value[i]);
}
return bit_cast<u128>(result);
}
static StringView name()
{
switch (VectorSize) {
case 4:
return "vecf(32x4).cvt_op"sv;
case 2:
return "vecf(64x2).cvt_op"sv;
default:
VERIFY_NOT_REACHED();
}
}
};
struct Floor {
template<typename Lhs>
auto operator()(Lhs lhs) const