diff options
Diffstat (limited to 'src/interp.cc')
| -rw-r--r-- | src/interp.cc | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/interp.cc b/src/interp.cc index 9e1849ad..177be98c 100644 --- a/src/interp.cc +++ b/src/interp.cc @@ -1214,6 +1214,23 @@ ValueTypeRep<T> Xchg(ValueTypeRep<T> lhs_rep, ValueTypeRep<T> rhs_rep) { return rhs_rep; } +// i(8,16,32,64) f(32,64) X (2,4,8,16) splat ==> v128 +template <typename T, typename V> +ValueTypeRep<T> SimdSplat(V Lane_Data) { + // Calculate how many Lanes according to input lane data type. + int32_t Lanes = sizeof(T)/sizeof(V); + + // Define SIMD data array by Lanes. + V Simd_data[sizeof(T)/sizeof(V)]; + + // Constuct the Simd value by Land data and Lane nums. + for(int32_t i = 0; i < Lanes; i++) { + Simd_data[i] = Lane_Data; + } + + return ToRep(Bitcast<T>(Simd_data)); +} + bool Environment::FuncSignaturesAreEqual(Index sig_index_0, Index sig_index_1) const { if (sig_index_0 == sig_index_1) { @@ -2226,6 +2243,12 @@ Result Thread::Run(int num_instructions) { break; } + case Opcode::I8X16Splat: { + uint8_t Lane_data = static_cast<uint8_t>(Pop<uint32_t>()); + CHECK_TRAP(Push<v128>(SimdSplat<v128, uint8_t>(Lane_data))); + break; + } + // The following opcodes are either never generated or should never be // executed. case Opcode::Block: @@ -2687,6 +2710,12 @@ void Thread::Trace(Stream* stream) { break; } + case Opcode::I8X16Splat: { + stream->Writef("%s $0x%08x 0x%08x 0x%08x 0x%08x \n", opcode.GetName(), Top().v128_bits.v[0], + Top().v128_bits.v[1], Top().v128_bits.v[2], Top().v128_bits.v[3]); + break; + } + // The following opcodes are either never generated or should never be // executed. case Opcode::Block: @@ -3047,6 +3076,7 @@ void Environment::Disassemble(Stream* stream, case Opcode::I64Extend16S: case Opcode::I64Extend32S: case Opcode::I64Extend8S: + case Opcode::I8X16Splat: stream->Writef("%s %%[-1]\n", opcode.GetName()); break; |