diff options
Diffstat (limited to 'src/Execution/Runtime.php')
| -rw-r--r-- | src/Execution/Runtime.php | 2668 |
1 files changed, 0 insertions, 2668 deletions
diff --git a/src/Execution/Runtime.php b/src/Execution/Runtime.php deleted file mode 100644 index 2cc37b2..0000000 --- a/src/Execution/Runtime.php +++ /dev/null @@ -1,2668 +0,0 @@ -<?php - -declare(strict_types=1); - -namespace Nsfisis\Waddiwasi\Execution; - -use Nsfisis\Waddiwasi\Structure\Instructions\Instr; -use Nsfisis\Waddiwasi\Structure\Instructions\Instrs; -use Nsfisis\Waddiwasi\Structure\Instructions\Instrs\Control\BlockType; -use Nsfisis\Waddiwasi\Structure\Instructions\Instrs\Control\BlockTypes; -use Nsfisis\Waddiwasi\Structure\Modules\DataModes; -use Nsfisis\Waddiwasi\Structure\Modules\ElemModes; -use Nsfisis\Waddiwasi\Structure\Modules\Module; -use Nsfisis\Waddiwasi\Structure\Types\FuncType; -use Nsfisis\Waddiwasi\Structure\Types\Limits; -use Nsfisis\Waddiwasi\Structure\Types\NumType; -use Nsfisis\Waddiwasi\Structure\Types\ResultType; -use Nsfisis\Waddiwasi\Structure\Types\TableType; -use Nsfisis\Waddiwasi\Structure\Types\ValType; -use Nsfisis\Waddiwasi\Structure\Types\ValTypes; -use RuntimeException; -use function abs; -use function array_map; -use function array_merge; -use function array_reverse; -use function assert; -use function ceil; -use function count; -use function fdiv; -use function floor; -use function intdiv; -use function is_array; -use function is_infinite; -use function is_int; -use function is_nan; -use function max; -use function min; -use function pack; -use function round; -use function sqrt; -use function unpack; -use const PHP_INT_MIN; - -final class Runtime -{ - /** - * @var array<string, array{int, int}> - */ - private array $instrMetrics = []; - - private function __construct( - public readonly Store $store, - public readonly Stack $stack, - public readonly ModuleInst $module, - ) { - } - - /** - * @param array<string, array<string, Extern>> $imports - */ - public static function instantiate( - Store $store, - Module $module, - array $imports, - ): self { - $externVals = []; - foreach ($module->imports as $import) { - $extern = $imports[$import->module][$import->name] ?? null; - if ($extern === null) { - throw new RuntimeException("instantiate: import not found: {$import->module}::{$import->name}"); - } - $externVals[] = $store->register($extern); - } - return self::doInstantiate($store, $module, $externVals); - } - - /** - * @param list<ExternVal> $externVals - */ - private static function doInstantiate( - Store $store, - Module $module, - array $externVals, - ): self { - $allocator = new Allocator($store); - - $moduleInstInit = $allocator->allocPreInitModule($module, $externVals); - - $stack = new Stack(); - $frameInit = new Frame(0, [], $moduleInstInit, 'preinit'); - $stack->pushFrame($frameInit); - - $runtimeInit = new self($store, $stack, $moduleInstInit); - - $vals = []; - foreach ($module->globals as $global) { - $vals[] = $runtimeInit->evalInstrsForInit($global->init); - assert($stack->top() === $frameInit); - } - - $refsList = []; - foreach ($module->elems as $elem) { - $refs = []; - foreach ($elem->init as $expr) { - $result = $runtimeInit->evalInstrsForInit($expr); - assert($result instanceof Ref); - $refs[] = $result; - } - $refsList[] = $refs; - } - - assert($stack->top() === $frameInit); - $stack->popFrame(); - - $moduleInst = $allocator->allocModule( - $module, - $externVals, - $vals, - $refsList, - $moduleInstInit->funcAddrs, - ); - - $runtime = new self($store, $stack, $moduleInst); - - $frame = new Frame(0, [], $moduleInst, 'init'); - $stack->pushFrame($frame); - - foreach ($module->elems as $i => $elem) { - if ($elem->mode instanceof ElemModes\Active) { - $n = count($elem->init); - $instrs = $elem->mode->offset; - $instrs[] = Instr::I32Const(0); - $instrs[] = Instr::I32Const($n); - $instrs[] = Instr::TableInit($elem->mode->table, $i); - $instrs[] = Instr::ElemDrop($i); - $runtime->execInstrsForInit($instrs); - } elseif ($elem->mode instanceof ElemModes\Declarative) { - $runtime->execInstrsForInit([Instr::ElemDrop($i)]); - } - } - foreach ($module->datas as $i => $data) { - if ($data->mode instanceof DataModes\Active) { - assert($data->mode->memory === 0); - $n = count($data->init); - $instrs = $data->mode->offset; - $instrs[] = Instr::I32Const(0); - $instrs[] = Instr::I32Const($n); - $instrs[] = Instr::MemoryInit($i); - $instrs[] = Instr::DataDrop($i); - $runtime->execInstrsForInit($instrs); - } - } - - if ($module->start !== null) { - $runtime->execInstrsForInit([Instr::Call($module->start->func)]); - } - - assert($stack->top() === $frame); - $stack->popFrame(); - - return new self($store, $stack, $moduleInst); - } - - public function getExport(string $name): ?ExternVal - { - foreach ($this->module->exports as $export) { - if ($name === $export->name) { - return $export->value; - } - } - return null; - } - - public function getExportedTable(string $name): ?TableInst - { - $export = $this->getExport($name); - if ($export instanceof ExternVals\Table) { - return $this->store->tables[$export->addr]; - } - return null; - } - - public function getExportedMemory(string $name): ?MemInst - { - $export = $this->getExport($name); - if ($export instanceof ExternVals\Mem) { - return $this->store->mems[$export->addr]; - } - return null; - } - - /** - * @return array<string, array{int, int}> - */ - public function getInstrMetrics(): array - { - asort($this->instrMetrics); - return $this->instrMetrics; - } - - /** - * @param list<int|float|Ref> $vals - * @return list<int|float|Ref> - */ - public function invoke(string $name, array $vals): array - { - try { - $export = $this->getExport($name); - assert($export instanceof ExternVals\Func); - $funcAddr = $export->addr; - - $funcInst = $this->store->funcs[$funcAddr]; - assert($funcInst instanceof FuncInsts\Wasm); - $paramTypes = $funcInst->type->params->types; - $resultTypes = $funcInst->type->results->types; - if (count($paramTypes) !== count($vals)) { - throw new RuntimeException("invoke($name) invalid function arity: expected " . count($paramTypes) . ", got " . count($vals)); - } - $f = new Frame(0, [], new ModuleInst([], [], [], [], [], [], [], []), "export: $name"); - $this->stack->pushFrame($f); - foreach ($vals as $val) { - $this->stack->pushValue($val); - } - $this->doInvokeFunc($funcAddr); - $results = $this->stack->popNValues(count($resultTypes)); - $this->stack->popFrame(); - return array_reverse($results); - } catch (RuntimeException $e) { - // @todo more reliable way to clear the stack - $this->stack->clear(); - throw $e; - } - } - - public function invokeByFuncAddr(int $funcAddr): void - { - $this->doInvokeFunc($funcAddr); - } - - private function doInvokeFunc(int $funcAddr): void - { - $fn = $this->store->funcs[$funcAddr]; - if ($fn instanceof FuncInsts\Wasm) { - $this->doInvokeWasmFunc($fn, $funcAddr); - } elseif ($fn instanceof FuncInsts\Host) { - $this->doInvokeHostFunc($fn); - } else { - throw new RuntimeException("doInvokeFunc: unreachable"); - } - } - - private function doInvokeWasmFunc(FuncInsts\Wasm $fn, int $funcAddr): void - { - $paramTypes = $fn->type->params->types; - $n = count($paramTypes); - $resultTypes = $fn->type->results->types; - $m = count($resultTypes); - $ts = $fn->code->locals; - $vals = $this->stack->popNValues($n); - $f = new Frame( - $m, - array_merge( - array_reverse($vals), - array_map(fn ($local) => self::defaultValueFromValType($local->type), $ts), - ), - $fn->module, - "wasm: $funcAddr", - ); - $this->activateFrame($f); - $l = new Label($m); - $this->execInstrs($fn->code->body, $l, null); - $this->deactivateFrame($m); - } - - private function activateFrame(Frame $f): void - { - $this->stack->pushFrame($f); - } - - private function deactivateFrame(int $arity): void - { - $vals = $this->stack->popNValues($arity); - $this->stack->popEntriesToCurrentFrame(); - for ($i = $arity - 1; 0 <= $i; $i--) { - $this->stack->pushValue($vals[$i]); - } - } - - private function activateLabel(Label $l): void - { - $this->stack->pushLabel($l); - } - - private function deactivateLabel(?int $arity): void - { - if ($arity === null) { - $vals = $this->stack->popValuesToLabel(); - } else { - $vals = $this->stack->popNValues($arity); - $this->stack->popValuesToLabel(); - } - for ($i = count($vals) - 1; 0 <= $i; $i--) { - $this->stack->pushValue($vals[$i]); - } - } - - private function doInvokeHostFunc(FuncInsts\Host $fn): void - { - $paramTypes = $fn->type->params->types; - $n = count($paramTypes); - $resultTypes = $fn->type->results->types; - $m = count($resultTypes); - - $params = array_reverse($this->stack->popNValues($n)); - $results = ($fn->callback)($this, ...$params); - if ($results === null) { - assert($m === 0); - return; - } - if (!is_array($results)) { - $results = [$results]; - } - assert($m === count($results)); - foreach ($results as $result) { - $this->stack->pushValue($result); - } - } - - /** - * @param list<Instr> $instrs - * @param ?list<int|float|Ref> $params - */ - private function execInstrs( - array $instrs, - Label $l, - ?array $params, - ): ?int { - $this->activateLabel($l); - if ($params !== null) { - foreach ($params as $param) { - $this->stack->pushValue($param); - } - } - - foreach ($instrs as $i => $instr) { - $result = $this->execInstr($instr); - if ($result !== null) { - return $result; - } - } - - $this->deactivateLabel(null); - return null; - } - - /** - * @param list<Instr> $instrs - */ - private function execInstrsForInit(array $instrs): void - { - foreach ($instrs as $i) { - $this->execInstr($i); - } - } - - /** - * @param list<Instr> $instrs - */ - private function evalInstrsForInit(array $instrs): int|float|Ref - { - $this->execInstrsForInit($instrs); - $result = $this->stack->popValue(); - return $result; - } - - private function execInstr(Instr $instr): ?int - { - return match ($instr::class) { - Instrs\Numeric\F32Abs::class => $this->execInstrNumericF32Abs($instr), - Instrs\Numeric\F32Add::class => $this->execInstrNumericF32Add($instr), - Instrs\Numeric\F32Ceil::class => $this->execInstrNumericF32Ceil($instr), - Instrs\Numeric\F32Const::class => $this->execInstrNumericF32Const($instr), - Instrs\Numeric\F32ConvertI32S::class => $this->execInstrNumericF32ConvertI32S($instr), - Instrs\Numeric\F32ConvertI32U::class => $this->execInstrNumericF32ConvertI32U($instr), - Instrs\Numeric\F32ConvertI64S::class => $this->execInstrNumericF32ConvertI64S($instr), - Instrs\Numeric\F32ConvertI64U::class => $this->execInstrNumericF32ConvertI64U($instr), - Instrs\Numeric\F32CopySign::class => $this->execInstrNumericF32CopySign($instr), - Instrs\Numeric\F32DemoteF64::class => $this->execInstrNumericF32DemoteF64($instr), - Instrs\Numeric\F32Div::class => $this->execInstrNumericF32Div($instr), - Instrs\Numeric\F32Eq::class => $this->execInstrNumericF32Eq($instr), - Instrs\Numeric\F32Floor::class => $this->execInstrNumericF32Floor($instr), - Instrs\Numeric\F32Ge::class => $this->execInstrNumericF32Ge($instr), - Instrs\Numeric\F32Gt::class => $this->execInstrNumericF32Gt($instr), - Instrs\Numeric\F32Le::class => $this->execInstrNumericF32Le($instr), - Instrs\Numeric\F32Lt::class => $this->execInstrNumericF32Lt($instr), - Instrs\Numeric\F32Max::class => $this->execInstrNumericF32Max($instr), - Instrs\Numeric\F32Min::class => $this->execInstrNumericF32Min($instr), - Instrs\Numeric\F32Mul::class => $this->execInstrNumericF32Mul($instr), - Instrs\Numeric\F32Ne::class => $this->execInstrNumericF32Ne($instr), - Instrs\Numeric\F32Nearest::class => $this->execInstrNumericF32Nearest($instr), - Instrs\Numeric\F32Neg::class => $this->execInstrNumericF32Neg($instr), - Instrs\Numeric\F32ReinterpretI32::class => $this->execInstrNumericF32ReinterpretI32($instr), - Instrs\Numeric\F32ReinterpretI64::class => $this->execInstrNumericF32ReinterpretI64($instr), - Instrs\Numeric\F32Sqrt::class => $this->execInstrNumericF32Sqrt($instr), - Instrs\Numeric\F32Sub::class => $this->execInstrNumericF32Sub($instr), - Instrs\Numeric\F32Trunc::class => $this->execInstrNumericF32Trunc($instr), - Instrs\Numeric\F64Abs::class => $this->execInstrNumericF64Abs($instr), - Instrs\Numeric\F64Add::class => $this->execInstrNumericF64Add($instr), - Instrs\Numeric\F64Ceil::class => $this->execInstrNumericF64Ceil($instr), - Instrs\Numeric\F64Const::class => $this->execInstrNumericF64Const($instr), - Instrs\Numeric\F64ConvertI32S::class => $this->execInstrNumericF64ConvertI32S($instr), - Instrs\Numeric\F64ConvertI32U::class => $this->execInstrNumericF64ConvertI32U($instr), - Instrs\Numeric\F64ConvertI64S::class => $this->execInstrNumericF64ConvertI64S($instr), - Instrs\Numeric\F64ConvertI64U::class => $this->execInstrNumericF64ConvertI64U($instr), - Instrs\Numeric\F64CopySign::class => $this->execInstrNumericF64CopySign($instr), - Instrs\Numeric\F64Div::class => $this->execInstrNumericF64Div($instr), - Instrs\Numeric\F64Eq::class => $this->execInstrNumericF64Eq($instr), - Instrs\Numeric\F64Floor::class => $this->execInstrNumericF64Floor($instr), - Instrs\Numeric\F64Ge::class => $this->execInstrNumericF64Ge($instr), - Instrs\Numeric\F64Gt::class => $this->execInstrNumericF64Gt($instr), - Instrs\Numeric\F64Le::class => $this->execInstrNumericF64Le($instr), - Instrs\Numeric\F64Lt::class => $this->execInstrNumericF64Lt($instr), - Instrs\Numeric\F64Max::class => $this->execInstrNumericF64Max($instr), - Instrs\Numeric\F64Min::class => $this->execInstrNumericF64Min($instr), - Instrs\Numeric\F64Mul::class => $this->execInstrNumericF64Mul($instr), - Instrs\Numeric\F64Ne::class => $this->execInstrNumericF64Ne($instr), - Instrs\Numeric\F64Nearest::class => $this->execInstrNumericF64Nearest($instr), - Instrs\Numeric\F64Neg::class => $this->execInstrNumericF64Neg($instr), - Instrs\Numeric\F64PromoteF32::class => $this->execInstrNumericF64PromoteF32($instr), - Instrs\Numeric\F64ReinterpretI32::class => $this->execInstrNumericF64ReinterpretI32($instr), - Instrs\Numeric\F64ReinterpretI64::class => $this->execInstrNumericF64ReinterpretI64($instr), - Instrs\Numeric\F64Sqrt::class => $this->execInstrNumericF64Sqrt($instr), - Instrs\Numeric\F64Sub::class => $this->execInstrNumericF64Sub($instr), - Instrs\Numeric\F64Trunc::class => $this->execInstrNumericF64Trunc($instr), - Instrs\Numeric\I32Add::class => $this->execInstrNumericI32Add($instr), - Instrs\Numeric\I32And::class => $this->execInstrNumericI32And($instr), - Instrs\Numeric\I32Clz::class => $this->execInstrNumericI32Clz($instr), - Instrs\Numeric\I32Const::class => $this->execInstrNumericI32Const($instr), - Instrs\Numeric\I32Ctz::class => $this->execInstrNumericI32Ctz($instr), - Instrs\Numeric\I32DivS::class => $this->execInstrNumericI32DivS($instr), - Instrs\Numeric\I32DivU::class => $this->execInstrNumericI32DivU($instr), - Instrs\Numeric\I32Eq::class => $this->execInstrNumericI32Eq($instr), - Instrs\Numeric\I32Eqz::class => $this->execInstrNumericI32Eqz($instr), - Instrs\Numeric\I32Extend16S::class => $this->execInstrNumericI32Extend16S($instr), - Instrs\Numeric\I32Extend8S::class => $this->execInstrNumericI32Extend8S($instr), - Instrs\Numeric\I32GeS::class => $this->execInstrNumericI32GeS($instr), - Instrs\Numeric\I32GeU::class => $this->execInstrNumericI32GeU($instr), - Instrs\Numeric\I32GtS::class => $this->execInstrNumericI32GtS($instr), - Instrs\Numeric\I32GtU::class => $this->execInstrNumericI32GtU($instr), - Instrs\Numeric\I32LeS::class => $this->execInstrNumericI32LeS($instr), - Instrs\Numeric\I32LeU::class => $this->execInstrNumericI32LeU($instr), - Instrs\Numeric\I32LtS::class => $this->execInstrNumericI32LtS($instr), - Instrs\Numeric\I32LtU::class => $this->execInstrNumericI32LtU($instr), - Instrs\Numeric\I32Mul::class => $this->execInstrNumericI32Mul($instr), - Instrs\Numeric\I32Ne::class => $this->execInstrNumericI32Ne($instr), - Instrs\Numeric\I32Or::class => $this->execInstrNumericI32Or($instr), - Instrs\Numeric\I32Popcnt::class => $this->execInstrNumericI32Popcnt($instr), - Instrs\Numeric\I32ReinterpretF32::class => $this->execInstrNumericI32ReinterpretF32($instr), - Instrs\Numeric\I32ReinterpretF64::class => $this->execInstrNumericI32ReinterpretF64($instr), - Instrs\Numeric\I32RemS::class => $this->execInstrNumericI32RemS($instr), - Instrs\Numeric\I32RemU::class => $this->execInstrNumericI32RemU($instr), - Instrs\Numeric\I32RotL::class => $this->execInstrNumericI32RotL($instr), - Instrs\Numeric\I32RotR::class => $this->execInstrNumericI32RotR($instr), - Instrs\Numeric\I32Shl::class => $this->execInstrNumericI32Shl($instr), - Instrs\Numeric\I32ShrS::class => $this->execInstrNumericI32ShrS($instr), - Instrs\Numeric\I32ShrU::class => $this->execInstrNumericI32ShrU($instr), - Instrs\Numeric\I32Sub::class => $this->execInstrNumericI32Sub($instr), - Instrs\Numeric\I32TruncF32S::class => $this->execInstrNumericI32TruncF32S($instr), - Instrs\Numeric\I32TruncF32U::class => $this->execInstrNumericI32TruncF32U($instr), - Instrs\Numeric\I32TruncF64S::class => $this->execInstrNumericI32TruncF64S($instr), - Instrs\Numeric\I32TruncF64U::class => $this->execInstrNumericI32TruncF64U($instr), - Instrs\Numeric\I32TruncSatF32S::class => $this->execInstrNumericI32TruncSatF32S($instr), - Instrs\Numeric\I32TruncSatF32U::class => $this->execInstrNumericI32TruncSatF32U($instr), - Instrs\Numeric\I32TruncSatF64S::class => $this->execInstrNumericI32TruncSatF64S($instr), - Instrs\Numeric\I32TruncSatF64U::class => $this->execInstrNumericI32TruncSatF64U($instr), - Instrs\Numeric\I32WrapI64::class => $this->execInstrNumericI32WrapI64($instr), - Instrs\Numeric\I32Xor::class => $this->execInstrNumericI32Xor($instr), - Instrs\Numeric\I64Add::class => $this->execInstrNumericI64Add($instr), - Instrs\Numeric\I64And::class => $this->execInstrNumericI64And($instr), - Instrs\Numeric\I64Clz::class => $this->execInstrNumericI64Clz($instr), - Instrs\Numeric\I64Const::class => $this->execInstrNumericI64Const($instr), - Instrs\Numeric\I64Ctz::class => $this->execInstrNumericI64Ctz($instr), - Instrs\Numeric\I64DivS::class => $this->execInstrNumericI64DivS($instr), - Instrs\Numeric\I64DivU::class => $this->execInstrNumericI64DivU($instr), - Instrs\Numeric\I64Eq::class => $this->execInstrNumericI64Eq($instr), - Instrs\Numeric\I64Eqz::class => $this->execInstrNumericI64Eqz($instr), - Instrs\Numeric\I64Extend16S::class => $this->execInstrNumericI64Extend16S($instr), - Instrs\Numeric\I64Extend32S::class => $this->execInstrNumericI64Extend32S($instr), - Instrs\Numeric\I64Extend8S::class => $this->execInstrNumericI64Extend8S($instr), - Instrs\Numeric\I64ExtendI32S::class => $this->execInstrNumericI64ExtendI32S($instr), - Instrs\Numeric\I64ExtendI32U::class => $this->execInstrNumericI64ExtendI32U($instr), - Instrs\Numeric\I64GeS::class => $this->execInstrNumericI64GeS($instr), - Instrs\Numeric\I64GeU::class => $this->execInstrNumericI64GeU($instr), - Instrs\Numeric\I64GtS::class => $this->execInstrNumericI64GtS($instr), - Instrs\Numeric\I64GtU::class => $this->execInstrNumericI64GtU($instr), - Instrs\Numeric\I64LeS::class => $this->execInstrNumericI64LeS($instr), - Instrs\Numeric\I64LeU::class => $this->execInstrNumericI64LeU($instr), - Instrs\Numeric\I64LtS::class => $this->execInstrNumericI64LtS($instr), - Instrs\Numeric\I64LtU::class => $this->execInstrNumericI64LtU($instr), - Instrs\Numeric\I64Mul::class => $this->execInstrNumericI64Mul($instr), - Instrs\Numeric\I64Ne::class => $this->execInstrNumericI64Ne($instr), - Instrs\Numeric\I64Or::class => $this->execInstrNumericI64Or($instr), - Instrs\Numeric\I64Popcnt::class => $this->execInstrNumericI64Popcnt($instr), - Instrs\Numeric\I64ReinterpretF32::class => $this->execInstrNumericI64ReinterpretF32($instr), - Instrs\Numeric\I64ReinterpretF64::class => $this->execInstrNumericI64ReinterpretF64($instr), - Instrs\Numeric\I64RemS::class => $this->execInstrNumericI64RemS($instr), - Instrs\Numeric\I64RemU::class => $this->execInstrNumericI64RemU($instr), - Instrs\Numeric\I64RotL::class => $this->execInstrNumericI64RotL($instr), - Instrs\Numeric\I64RotR::class => $this->execInstrNumericI64RotR($instr), - Instrs\Numeric\I64Shl::class => $this->execInstrNumericI64Shl($instr), - Instrs\Numeric\I64ShrS::class => $this->execInstrNumericI64ShrS($instr), - Instrs\Numeric\I64ShrU::class => $this->execInstrNumericI64ShrU($instr), - Instrs\Numeric\I64Sub::class => $this->execInstrNumericI64Sub($instr), - Instrs\Numeric\I64TruncF32S::class => $this->execInstrNumericI64TruncF32S($instr), - Instrs\Numeric\I64TruncF32U::class => $this->execInstrNumericI64TruncF32U($instr), - Instrs\Numeric\I64TruncF64S::class => $this->execInstrNumericI64TruncF64S($instr), - Instrs\Numeric\I64TruncF64U::class => $this->execInstrNumericI64TruncF64U($instr), - Instrs\Numeric\I64TruncSatF32S::class => $this->execInstrNumericI64TruncSatF32S($instr), - Instrs\Numeric\I64TruncSatF32U::class => $this->execInstrNumericI64TruncSatF32U($instr), - Instrs\Numeric\I64TruncSatF64S::class => $this->execInstrNumericI64TruncSatF64S($instr), - Instrs\Numeric\I64TruncSatF64U::class => $this->execInstrNumericI64TruncSatF64U($instr), - Instrs\Numeric\I64Xor::class => $this->execInstrNumericI64Xor($instr), - Instrs\Reference\RefFunc::class => $this->execInstrReferenceRefFunc($instr), - Instrs\Reference\RefIsNull::class => $this->execInstrReferenceRefIsNull($instr), - Instrs\Reference\RefNull::class => $this->execInstrReferenceRefNull($instr), - Instrs\Parametric\Drop::class => $this->execInstrParametricDrop($instr), - Instrs\Parametric\Select::class => $this->execInstrParametricSelect($instr), - Instrs\Variable\GlobalGet::class => $this->execInstrVariableGlobalGet($instr), - Instrs\Variable\GlobalSet::class => $this->execInstrVariableGlobalSet($instr), - Instrs\Variable\LocalGet::class => $this->execInstrVariableLocalGet($instr), - Instrs\Variable\LocalSet::class => $this->execInstrVariableLocalSet($instr), - Instrs\Variable\LocalTee::class => $this->execInstrVariableLocalTee($instr), - Instrs\Table\ElemDrop::class => $this->execInstrTableElemDrop($instr), - Instrs\Table\TableCopy::class => $this->execInstrTableTableCopy($instr), - Instrs\Table\TableFill::class => $this->execInstrTableTableFill($instr), - Instrs\Table\TableGet::class => $this->execInstrTableTableGet($instr), - Instrs\Table\TableGrow::class => $this->execInstrTableTableGrow($instr), - Instrs\Table\TableInit::class => $this->execInstrTableTableInit($instr), - Instrs\Table\TableSet::class => $this->execInstrTableTableSet($instr), - Instrs\Table\TableSize::class => $this->execInstrTableTableSize($instr), - Instrs\Memory\DataDrop::class => $this->execInstrMemoryDataDrop($instr), - Instrs\Memory\F32Load::class => $this->execInstrMemoryF32Load($instr), - Instrs\Memory\F32Store::class => $this->execInstrMemoryF32Store($instr), - Instrs\Memory\F64Load::class => $this->execInstrMemoryF64Load($instr), - Instrs\Memory\F64Store::class => $this->execInstrMemoryF64Store($instr), - Instrs\Memory\I32Load::class => $this->execInstrMemoryI32Load($instr), - Instrs\Memory\I32Load16S::class => $this->execInstrMemoryI32Load16S($instr), - Instrs\Memory\I32Load16U::class => $this->execInstrMemoryI32Load16U($instr), - Instrs\Memory\I32Load8S::class => $this->execInstrMemoryI32Load8S($instr), - Instrs\Memory\I32Load8U::class => $this->execInstrMemoryI32Load8U($instr), - Instrs\Memory\I32Store::class => $this->execInstrMemoryI32Store($instr), - Instrs\Memory\I32Store16::class => $this->execInstrMemoryI32Store16($instr), - Instrs\Memory\I32Store8::class => $this->execInstrMemoryI32Store8($instr), - Instrs\Memory\I64Load::class => $this->execInstrMemoryI64Load($instr), - Instrs\Memory\I64Load16S::class => $this->execInstrMemoryI64Load16S($instr), - Instrs\Memory\I64Load16U::class => $this->execInstrMemoryI64Load16U($instr), - Instrs\Memory\I64Load32S::class => $this->execInstrMemoryI64Load32S($instr), - Instrs\Memory\I64Load32U::class => $this->execInstrMemoryI64Load32U($instr), - Instrs\Memory\I64Load8S::class => $this->execInstrMemoryI64Load8S($instr), - Instrs\Memory\I64Load8U::class => $this->execInstrMemoryI64Load8U($instr), - Instrs\Memory\I64Store::class => $this->execInstrMemoryI64Store($instr), - Instrs\Memory\I64Store16::class => $this->execInstrMemoryI64Store16($instr), - Instrs\Memory\I64Store32::class => $this->execInstrMemoryI64Store32($instr), - Instrs\Memory\I64Store8::class => $this->execInstrMemoryI64Store8($instr), - Instrs\Memory\MemoryCopy::class => $this->execInstrMemoryMemoryCopy($instr), - Instrs\Memory\MemoryFill::class => $this->execInstrMemoryMemoryFill($instr), - Instrs\Memory\MemoryGrow::class => $this->execInstrMemoryMemoryGrow($instr), - Instrs\Memory\MemoryInit::class => $this->execInstrMemoryMemoryInit($instr), - Instrs\Memory\MemorySize::class => $this->execInstrMemoryMemorySize($instr), - Instrs\Control\Block::class => $this->execInstrControlBlock($instr), - Instrs\Control\Br::class => $this->execInstrControlBr($instr), - Instrs\Control\BrIf::class => $this->execInstrControlBrIf($instr), - Instrs\Control\BrTable::class => $this->execInstrControlBrTable($instr), - Instrs\Control\Call::class => $this->execInstrControlCall($instr), - Instrs\Control\CallIndirect::class => $this->execInstrControlCallIndirect($instr), - Instrs\Control\Else_::class => $this->execInstrControlElse_($instr), - Instrs\Control\End::class => $this->execInstrControlEnd($instr), - Instrs\Control\If_::class => $this->execInstrControlIf_($instr), - Instrs\Control\Loop::class => $this->execInstrControlLoop($instr), - Instrs\Control\Nop::class => $this->execInstrControlNop($instr), - Instrs\Control\Return_::class => $this->execInstrControlReturn_($instr), - Instrs\Control\Unreachable::class => $this->execInstrControlUnreachable($instr), - default => throw new RuntimeException("invalid instruction"), - }; - } - - private function execInstrNumericF32Abs(Instrs\Numeric\F32Abs $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(abs($v)); - } - - private function execInstrNumericF32Add(Instrs\Numeric\F32Add $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::truncateF64ToF32($c1 + $c2)); - } - - private function execInstrNumericF32Ceil(Instrs\Numeric\F32Ceil $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(ceil($v)); - } - - private function execInstrNumericF32Const(Instrs\Numeric\F32Const $instr): void - { - $this->stack->pushValue($instr->value); - } - - private function execInstrNumericF32ConvertI32S(Instrs\Numeric\F32ConvertI32S $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::truncateF64ToF32((float) $v)); - } - - private function execInstrNumericF32ConvertI32U(Instrs\Numeric\F32ConvertI32U $instr): void - { - $v = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushValue(NumericOps::truncateF64ToF32((float) $v)); - } - - private function execInstrNumericF32ConvertI64S(Instrs\Numeric\F32ConvertI64S $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::truncateF64ToF32((float) $v)); - } - - private function execInstrNumericF32ConvertI64U(Instrs\Numeric\F32ConvertI64U $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::truncateF64ToF32((float) $v)); - } - - private function execInstrNumericF32CopySign(Instrs\Numeric\F32CopySign $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $c1Sign = NumericOps::getFloatSign($c1); - $c2Sign = NumericOps::getFloatSign($c2); - $this->stack->pushValue($c1Sign === $c2Sign ? $c1 : -$c1); - } - - private function execInstrNumericF32DemoteF64(Instrs\Numeric\F32DemoteF64 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue($v); - } - - private function execInstrNumericF32Div(Instrs\Numeric\F32Div $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::truncateF64ToF32(fdiv($c1, $c2))); - } - - private function execInstrNumericF32Eq(Instrs\Numeric\F32Eq $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 === $c2); - } - - private function execInstrNumericF32Floor(Instrs\Numeric\F32Floor $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(floor($v)); - } - - private function execInstrNumericF32Ge(Instrs\Numeric\F32Ge $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 >= $c2); - } - - private function execInstrNumericF32Gt(Instrs\Numeric\F32Gt $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 > $c2); - } - - private function execInstrNumericF32Le(Instrs\Numeric\F32Le $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 <= $c2); - } - - private function execInstrNumericF32Lt(Instrs\Numeric\F32Lt $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 < $c2); - } - - private function execInstrNumericF32Max(Instrs\Numeric\F32Max $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - if (is_nan($c1) || is_nan($c2)) { - // PHP's standard max() handles NaNs in diffrent way than WebAssembly spec does. - $this->stack->pushValue(NAN); - return; - } - $this->stack->pushValue(max($c1, $c2)); - } - - private function execInstrNumericF32Min(Instrs\Numeric\F32Min $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - if (is_nan($c1) || is_nan($c2)) { - // PHP's standard min() handles NaNs in diffrent way than WebAssembly spec does. - $this->stack->pushValue(NAN); - return; - } - $this->stack->pushValue(min($c1, $c2)); - } - - private function execInstrNumericF32Mul(Instrs\Numeric\F32Mul $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::truncateF64ToF32($c1 * $c2)); - } - - private function execInstrNumericF32Ne(Instrs\Numeric\F32Ne $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 !== $c2); - } - - private function execInstrNumericF32Nearest(Instrs\Numeric\F32Nearest $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(round($v, mode: PHP_ROUND_HALF_EVEN)); - } - - private function execInstrNumericF32Neg(Instrs\Numeric\F32Neg $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(-$c1); - } - - private function execInstrNumericF32ReinterpretI32(Instrs\Numeric\F32ReinterpretI32 $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::reinterpretI32AsF32($v)); - } - - private function execInstrNumericF32ReinterpretI64(Instrs\Numeric\F32ReinterpretI64 $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::reinterpretI64AsF32($v)); - } - - private function execInstrNumericF32Sqrt(Instrs\Numeric\F32Sqrt $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::truncateF64ToF32(sqrt($c1))); - } - - private function execInstrNumericF32Sub(Instrs\Numeric\F32Sub $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::truncateF64ToF32($c1 - $c2)); - } - - private function execInstrNumericF32Trunc(Instrs\Numeric\F32Trunc $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0) { - $this->stack->pushValue(NumericOps::truncateF64ToF32(ceil($v))); - } else { - $this->stack->pushValue(NumericOps::truncateF64ToF32(floor($v))); - } - } - - private function execInstrNumericF64Abs(Instrs\Numeric\F64Abs $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(abs($c1)); - } - - private function execInstrNumericF64Add(Instrs\Numeric\F64Add $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue($c1 + $c2); - } - - private function execInstrNumericF64Ceil(Instrs\Numeric\F64Ceil $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(ceil($c1)); - } - - private function execInstrNumericF64Const(Instrs\Numeric\F64Const $instr): void - { - $this->stack->pushValue($instr->value); - } - - private function execInstrNumericF64ConvertI32S(Instrs\Numeric\F64ConvertI32S $instr): void - { - $c = $this->stack->popInt(); - $this->stack->pushValue((float) $c); - } - - private function execInstrNumericF64ConvertI32U(Instrs\Numeric\F64ConvertI32U $instr): void - { - $c = $this->stack->popInt(); - $this->stack->pushValue((float) $c); - } - - private function execInstrNumericF64ConvertI64S(Instrs\Numeric\F64ConvertI64S $instr): void - { - $c = $this->stack->popInt(); - $this->stack->pushValue((float) $c); - } - - private function execInstrNumericF64ConvertI64U(Instrs\Numeric\F64ConvertI64U $instr): void - { - $c = $this->stack->popInt(); - $this->stack->pushValue((float) $c); - } - - private function execInstrNumericF64CopySign(Instrs\Numeric\F64CopySign $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $c1Sign = NumericOps::getFloatSign($c1); - $c2Sign = NumericOps::getFloatSign($c2); - $this->stack->pushValue($c1Sign === $c2Sign ? $c1 : -$c1); - } - - private function execInstrNumericF64Div(Instrs\Numeric\F64Div $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(fdiv($c1, $c2)); - } - - private function execInstrNumericF64Eq(Instrs\Numeric\F64Eq $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 === $c2); - } - - private function execInstrNumericF64Floor(Instrs\Numeric\F64Floor $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(floor($c1)); - } - - private function execInstrNumericF64Ge(Instrs\Numeric\F64Ge $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 >= $c2); - } - - private function execInstrNumericF64Gt(Instrs\Numeric\F64Gt $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 > $c2); - } - - private function execInstrNumericF64Le(Instrs\Numeric\F64Le $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 <= $c2); - } - - private function execInstrNumericF64Lt(Instrs\Numeric\F64Lt $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 < $c2); - } - - private function execInstrNumericF64Max(Instrs\Numeric\F64Max $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - if (is_nan($c1) || is_nan($c2)) { - // PHP's standard max() handles NaNs in diffrent way than WebAssembly spec does. - $this->stack->pushValue(NAN); - return; - } - $this->stack->pushValue(max($c1, $c2)); - } - - private function execInstrNumericF64Min(Instrs\Numeric\F64Min $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - if (is_nan($c1) || is_nan($c2)) { - // PHP's standard min() handles NaNs in diffrent way than WebAssembly spec does. - $this->stack->pushValue(NAN); - return; - } - $this->stack->pushValue(min($c1, $c2)); - } - - private function execInstrNumericF64Mul(Instrs\Numeric\F64Mul $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue($c1 * $c2); - } - - private function execInstrNumericF64Ne(Instrs\Numeric\F64Ne $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushBool($c1 !== $c2); - } - - private function execInstrNumericF64Nearest(Instrs\Numeric\F64Nearest $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(round($v, mode: PHP_ROUND_HALF_EVEN)); - } - - private function execInstrNumericF64Neg(Instrs\Numeric\F64Neg $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(-$c1); - } - - private function execInstrNumericF64PromoteF32(Instrs\Numeric\F64PromoteF32 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue($v); - } - - private function execInstrNumericF64ReinterpretI32(Instrs\Numeric\F64ReinterpretI32 $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::reinterpretI32AsF64($v)); - } - - private function execInstrNumericF64ReinterpretI64(Instrs\Numeric\F64ReinterpretI64 $instr): void - { - $v = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::reinterpretI64AsF64($v)); - } - - private function execInstrNumericF64Sqrt(Instrs\Numeric\F64Sqrt $instr): void - { - $c1 = $this->stack->popFloat(); - $this->stack->pushValue(sqrt($c1)); - } - - private function execInstrNumericF64Sub(Instrs\Numeric\F64Sub $instr): void - { - $c2 = $this->stack->popFloat(); - $c1 = $this->stack->popFloat(); - $this->stack->pushValue($c1 - $c2); - } - - private function execInstrNumericF64Trunc(Instrs\Numeric\F64Trunc $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0) { - $this->stack->pushValue(ceil($v)); - } else { - $this->stack->pushValue(floor($v)); - } - } - - private function execInstrNumericI32Add(Instrs\Numeric\I32Add $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 + $c2) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32And(Instrs\Numeric\I32And $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 & $c2) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32Clz(Instrs\Numeric\I32Clz $instr): void - { - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $leadingZeros = 0; - for ($j = 31; 0 <= $j; $j--) { - if (($i & (1 << $j)) === 0) { - $leadingZeros++; - } else { - break; - } - } - $this->stack->pushValue($leadingZeros); - } - - private function execInstrNumericI32Const(Instrs\Numeric\I32Const $instr): void - { - $this->stack->pushValue($instr->value); - } - - private function execInstrNumericI32Ctz(Instrs\Numeric\I32Ctz $instr): void - { - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $trailingZeros = 0; - for ($j = 0; $j < 32; $j++) { - if (($i & (1 << $j)) === 0) { - $trailingZeros++; - } else { - break; - } - } - $this->stack->pushValue($trailingZeros); - } - - private function execInstrNumericI32DivS(Instrs\Numeric\I32DivS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - if ($c2 === 0) { - throw new TrapException("i32.div_s: divide by zero", trapKind: TrapKind::DivideByZero); - } - if ($c1 === -2147483648 && $c2 === -1) { - throw new TrapException("i32.div_s: overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue(intdiv($c1, $c2)); - } - - private function execInstrNumericI32DivU(Instrs\Numeric\I32DivU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - if ($c2 === 0) { - throw new TrapException("i32.div_u: divide by zero", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue(NumericOps::convertU32ToS32(intdiv($c1, $c2))); - } - - private function execInstrNumericI32Eq(Instrs\Numeric\I32Eq $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 === $c2); - } - - private function execInstrNumericI32Eqz(Instrs\Numeric\I32Eqz $instr): void - { - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 === 0); - } - - private function execInstrNumericI32Extend16S(Instrs\Numeric\I32Extend16S $instr): void - { - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c2 = $c1 & 0xFFFF; - $result = unpack('s', pack('S', $c2)); - assert($result !== false); - $this->stack->pushValue($result[1]); - } - - private function execInstrNumericI32Extend8S(Instrs\Numeric\I32Extend8S $instr): void - { - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c2 = $c1 & 0xFF; - $result = unpack('c', pack('C', $c2)); - assert($result !== false); - $this->stack->pushValue($result[1]); - } - - private function execInstrNumericI32GeS(Instrs\Numeric\I32GeS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 >= $c2); - } - - private function execInstrNumericI32GeU(Instrs\Numeric\I32GeU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushBool($c1 >= $c2); - } - - private function execInstrNumericI32GtS(Instrs\Numeric\I32GtS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 > $c2); - } - - private function execInstrNumericI32GtU(Instrs\Numeric\I32GtU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushBool($c1 > $c2); - } - - private function execInstrNumericI32LeS(Instrs\Numeric\I32LeS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 <= $c2); - } - - private function execInstrNumericI32LeU(Instrs\Numeric\I32LeU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushBool($c1 <= $c2); - } - - private function execInstrNumericI32LtS(Instrs\Numeric\I32LtS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 < $c2); - } - - private function execInstrNumericI32LtU(Instrs\Numeric\I32LtU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushBool($c1 < $c2); - } - - private function execInstrNumericI32Mul(Instrs\Numeric\I32Mul $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 * $c2) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32Ne(Instrs\Numeric\I32Ne $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 !== $c2); - } - - private function execInstrNumericI32Or(Instrs\Numeric\I32Or $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 | $c2) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32Popcnt(Instrs\Numeric\I32Popcnt $instr): void - { - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $popcnt = 0; - for ($j = 0; $j < 32; $j++) { - if (($i & (1 << $j)) !== 0) { - $popcnt++; - } - } - $this->stack->pushValue($popcnt); - } - - private function execInstrNumericI32ReinterpretF32(Instrs\Numeric\I32ReinterpretF32 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::reinterpretF32AsI32($v)); - } - - private function execInstrNumericI32ReinterpretF64(Instrs\Numeric\I32ReinterpretF64 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::reinterpretF64AsI32($v)); - } - - private function execInstrNumericI32RemS(Instrs\Numeric\I32RemS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - if ($c2 === 0) { - throw new TrapException("i32.rem_s: divide by zero or overflow", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue($c1 % $c2); - } - - private function execInstrNumericI32RemU(Instrs\Numeric\I32RemU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - if ($c2 === 0) { - throw new TrapException("i32.rem_u: divide by zero", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue(NumericOps::convertU32ToS32($c1 % $c2)); - } - - private function execInstrNumericI32RotL(Instrs\Numeric\I32RotL $instr): void - { - $i2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $i1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $k = $i2 % 32; - $this->stack->pushValue(NumericOps::convertU32ToS32((($i1 << $k) | ($i1 >> (32 - $k))) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32RotR(Instrs\Numeric\I32RotR $instr): void - { - $i2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $i1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $k = $i2 % 32; - $this->stack->pushValue(NumericOps::convertU32ToS32((($i1 >> $k) | ($i1 << (32 - $k))) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32Shl(Instrs\Numeric\I32Shl $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $k = $c2 % 32; - $c1 = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 << $k) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32ShrS(Instrs\Numeric\I32ShrS $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $k = $c2 % 32; - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $signed = $c1 & 0x80000000; - if ($signed !== 0) { - $result = $c1; - for ($i = 0; $i < $k; $i++) { - $result = ($result >> 1) | 0x80000000; - } - $this->stack->pushValue(NumericOps::convertU32ToS32($result)); - } else { - $this->stack->pushValue($c1 >> $k); - } - } - - private function execInstrNumericI32ShrU(Instrs\Numeric\I32ShrU $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $k = $c2 % 32; - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushValue(NumericOps::convertU32ToS32($c1 >> $k)); - } - - private function execInstrNumericI32Sub(Instrs\Numeric\I32Sub $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c2Neg = ((~$c2 & 0xFFFFFFFF) + 1) & 0xFFFFFFFF; - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 + $c2Neg) & 0xFFFFFFFF)); - } - - private function execInstrNumericI32TruncF32S(Instrs\Numeric\I32TruncF32S $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -2147483649.0 || 2147483648.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI32TruncF32U(Instrs\Numeric\I32TruncF32U $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -1.0 || 4294967296.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue(NumericOps::convertU32ToS32((int) $v)); - } - - private function execInstrNumericI32TruncF64S(Instrs\Numeric\I32TruncF64S $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -2147483649.0 || 2147483648.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI32TruncF64U(Instrs\Numeric\I32TruncF64U $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -1.0 || 4294967296.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue(NumericOps::convertU32ToS32((int) $v)); - } - - private function execInstrNumericI32TruncSatF32S(Instrs\Numeric\I32TruncSatF32S $instr): void - { - $v = $this->stack->popFloat(); - if ($v < -2147483648.0) { - $this->stack->pushValue(-2147483648); - } elseif ($v > 2147483647.0) { - $this->stack->pushValue(2147483647); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI32TruncSatF32U(Instrs\Numeric\I32TruncSatF32U $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0.0) { - $this->stack->pushValue(0); - } elseif ($v > 4294967295.0) { - $this->stack->pushValue(4294967295); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI32TruncSatF64S(Instrs\Numeric\I32TruncSatF64S $instr): void - { - $v = $this->stack->popFloat(); - if ($v < -2147483648.0) { - $this->stack->pushValue(-2147483648); - } elseif ($v > 2147483647.0) { - $this->stack->pushValue(2147483647); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI32TruncSatF64U(Instrs\Numeric\I32TruncSatF64U $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0.0) { - $this->stack->pushValue(0); - } elseif ($v > 4294967295.0) { - $this->stack->pushValue(4294967295); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI32WrapI64(Instrs\Numeric\I32WrapI64 $instr): void - { - $c1 = $this->stack->popInt(); - $this->stack->pushValue(NumericOps::convertU32ToS32($c1 & 0xFFFFFFFF)); - } - - private function execInstrNumericI32Xor(Instrs\Numeric\I32Xor $instr): void - { - $c2 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $this->stack->pushValue(NumericOps::convertU32ToS32(($c1 ^ $c2) & 0xFFFFFFFF)); - } - - private function execInstrNumericI64Add(Instrs\Numeric\I64Add $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $result = NumericOps::bigIntToPhpInt(bcadd((string)$c1, (string)$c2)); - $this->stack->pushValue($result); - } - - private function execInstrNumericI64And(Instrs\Numeric\I64And $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1 & $c2); - } - - private function execInstrNumericI64Clz(Instrs\Numeric\I64Clz $instr): void - { - $i = $this->stack->popInt(); - $leadingZeros = 0; - for ($j = 63; 0 <= $j; $j--) { - if ($j === 63) { - if ($i < 0) { - break; - } else { - $leadingZeros++; - } - } else { - if (($i & (1 << $j)) === 0) { - $leadingZeros++; - } else { - break; - } - } - } - $this->stack->pushValue($leadingZeros); - } - - private function execInstrNumericI64Const(Instrs\Numeric\I64Const $instr): void - { - $this->stack->pushValue($instr->value); - } - - private function execInstrNumericI64Ctz(Instrs\Numeric\I64Ctz $instr): void - { - $i = $this->stack->popInt(); - $trailingZeros = 0; - for ($j = 0; $j < 64; $j++) { - if ($j === 63) { - if ($i >= 0) { - $trailingZeros++; - } - } else { - if (($i & (1 << $j)) === 0) { - $trailingZeros++; - } else { - break; - } - } - } - $this->stack->pushValue($trailingZeros); - } - - private function execInstrNumericI64DivS(Instrs\Numeric\I64DivS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - if ($c2 === 0) { - throw new TrapException("i64.div_s: divide by zero", trapKind: TrapKind::DivideByZero); - } - if ($c1 === PHP_INT_MIN && $c2 === -1) { - throw new TrapException("i64.div_s: overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue(intdiv($c1, $c2)); - } - - private function execInstrNumericI64DivU(Instrs\Numeric\I64DivU $instr): void - { - $c2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $c1 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - if ($c2 === '0') { - throw new TrapException("i64.div_u: divide by zero", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue(NumericOps::bigIntToPhpInt(bcdiv($c1, $c2, 0))); - } - - private function execInstrNumericI64Eq(Instrs\Numeric\I64Eq $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 === $c2); - } - - private function execInstrNumericI64Eqz(Instrs\Numeric\I64Eqz $instr): void - { - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 === 0); - } - - private function execInstrNumericI64Extend16S(Instrs\Numeric\I64Extend16S $instr): void - { - $c1 = $this->stack->popInt(); - $c2 = $c1 & 0xFFFF; - $result = unpack('s', pack('S', $c2)); - assert($result !== false); - $this->stack->pushValue($result[1]); - } - - private function execInstrNumericI64Extend32S(Instrs\Numeric\I64Extend32S $instr): void - { - $c1 = $this->stack->popInt(); - $c2 = $c1 & 0xFFFFFFFF; - $result = unpack('l', pack('L', $c2)); - assert($result !== false); - $this->stack->pushValue($result[1]); - } - - private function execInstrNumericI64Extend8S(Instrs\Numeric\I64Extend8S $instr): void - { - $c1 = $this->stack->popInt(); - $c2 = $c1 & 0xFF; - $result = unpack('c', pack('C', $c2)); - assert($result !== false); - $this->stack->pushValue($result[1]); - } - - private function execInstrNumericI64ExtendI32S(Instrs\Numeric\I64ExtendI32S $instr): void - { - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1); - } - - private function execInstrNumericI64ExtendI32U(Instrs\Numeric\I64ExtendI32U $instr): void - { - $c1 = NumericOps::convertS32ToU32($this->stack->popInt()); - $c2 = $c1 & 0xFFFFFFFF; - $this->stack->pushValue($c2); - } - - private function execInstrNumericI64GeS(Instrs\Numeric\I64GeS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 >= $c2); - } - - private function execInstrNumericI64GeU(Instrs\Numeric\I64GeU $instr): void - { - $c2 = $this->stack->popInt(); - $c2Packed = pack('J', $c2); - $c1 = $this->stack->popInt(); - $c1Packed = pack('J', $c1); - $this->stack->pushBool($c1Packed >= $c2Packed); - } - - private function execInstrNumericI64GtS(Instrs\Numeric\I64GtS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 > $c2); - } - - private function execInstrNumericI64GtU(Instrs\Numeric\I64GtU $instr): void - { - $c2 = $this->stack->popInt(); - $c2Packed = pack('J', $c2); - $c1 = $this->stack->popInt(); - $c1Packed = pack('J', $c1); - $this->stack->pushBool($c1Packed > $c2Packed); - } - - private function execInstrNumericI64LeS(Instrs\Numeric\I64LeS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 <= $c2); - } - - private function execInstrNumericI64LeU(Instrs\Numeric\I64LeU $instr): void - { - $c2 = $this->stack->popInt(); - $c2Packed = pack('J', $c2); - $c1 = $this->stack->popInt(); - $c1Packed = pack('J', $c1); - $this->stack->pushBool($c1Packed <= $c2Packed); - } - - private function execInstrNumericI64LtS(Instrs\Numeric\I64LtS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 < $c2); - } - - private function execInstrNumericI64LtU(Instrs\Numeric\I64LtU $instr): void - { - $c2 = $this->stack->popInt(); - $c2Packed = pack('J', $c2); - $c1 = $this->stack->popInt(); - $c1Packed = pack('J', $c1); - $this->stack->pushBool($c1Packed < $c2Packed); - } - - private function execInstrNumericI64Mul(Instrs\Numeric\I64Mul $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $result = NumericOps::bigIntToPhpInt(bcmul((string)$c1, (string)$c2)); - $this->stack->pushValue($result); - } - - private function execInstrNumericI64Ne(Instrs\Numeric\I64Ne $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushBool($c1 !== $c2); - } - - private function execInstrNumericI64Or(Instrs\Numeric\I64Or $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1 | $c2); - } - - private function execInstrNumericI64Popcnt(Instrs\Numeric\I64Popcnt $instr): void - { - $i = $this->stack->popInt(); - $popcnt = 0; - for ($j = 0; $j < 64; $j++) { - if (($i & (1 << $j)) !== 0) { - $popcnt++; - } - } - $this->stack->pushValue($popcnt); - } - - private function execInstrNumericI64ReinterpretF32(Instrs\Numeric\I64ReinterpretF32 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::reinterpretF32AsI64($v)); - } - - private function execInstrNumericI64ReinterpretF64(Instrs\Numeric\I64ReinterpretF64 $instr): void - { - $v = $this->stack->popFloat(); - $this->stack->pushValue(NumericOps::reinterpretF64AsI64($v)); - } - - private function execInstrNumericI64RemS(Instrs\Numeric\I64RemS $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - if ($c2 === 0) { - throw new TrapException("i64.rem_s: divide by zero", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue($c1 % $c2); - } - - private function execInstrNumericI64RemU(Instrs\Numeric\I64RemU $instr): void - { - $c2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $c1 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - if ($c2 === '0') { - throw new TrapException("i64.rem_u: divide by zero", trapKind: TrapKind::DivideByZero); - } - $this->stack->pushValue(NumericOps::bigIntToPhpInt(bcmod($c1, $c2, 0))); - } - - private function execInstrNumericI64RotL(Instrs\Numeric\I64RotL $instr): void - { - $i2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $k = (int)bcmod($i2, '64'); - $i1 = $this->stack->popInt(); - $left = $i1 << $k; - $right = $i1; - for ($i = 0; $i < 64 - $k; $i++) { - $right = ($right >> 1) & 0x7FFFFFFFFFFFFFFF; - } - $this->stack->pushValue($left | $right); - } - - private function execInstrNumericI64RotR(Instrs\Numeric\I64RotR $instr): void - { - $i2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $k = (int)bcmod($i2, '64'); - $i1 = $this->stack->popInt(); - $left = $i1; - for ($i = 0; $i < $k; $i++) { - $left = ($left >> 1) & 0x7FFFFFFFFFFFFFFF; - } - $right = $i1 << (64 - $k); - $this->stack->pushValue($left | $right); - } - - private function execInstrNumericI64Shl(Instrs\Numeric\I64Shl $instr): void - { - $c2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $k = (int)bcmod($c2, '64'); - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1 << $k); - } - - private function execInstrNumericI64ShrS(Instrs\Numeric\I64ShrS $instr): void - { - $c2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $k = (int)bcmod($c2, '64'); - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1 >> $k); - } - - private function execInstrNumericI64ShrU(Instrs\Numeric\I64ShrU $instr): void - { - $c2 = NumericOps::convertS64ToBigUInt($this->stack->popInt()); - $k = (int)bcmod($c2, '64'); - if ($k === 0) { - return; - } - // Perform shr_u based on string manipulation because PHP does not - // support shr_u operation. - $c1 = $this->stack->popInt(); - $this->stack->pushValue(bindec(substr(decbin($c1), 0, -$k))); - } - - private function execInstrNumericI64Sub(Instrs\Numeric\I64Sub $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $result = NumericOps::bigIntToPhpInt(bcsub((string)$c1, (string)$c2)); - $this->stack->pushValue($result); - } - - private function execInstrNumericI64TruncF32S(Instrs\Numeric\I64TruncF32S $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion ($v)", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow ($v)", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -9223372036854775809.0 || 9223372036854775808.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow ($v)", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI64TruncF32U(Instrs\Numeric\I64TruncF32U $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -1.0 || 18446744073709551616.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI64TruncF64S(Instrs\Numeric\I64TruncF64S $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -9223372036854775809.0 || 9223372036854775808.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI64TruncF64U(Instrs\Numeric\I64TruncF64U $instr): void - { - $v = $this->stack->popFloat(); - if (is_nan($v)) { - throw new TrapException($instr::opName() . ": invalid conversion", trapKind: TrapKind::InvalidConversionToInteger); - } - if (is_infinite($v)) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - if ($v <= -1.0 || 18446744073709551616.0 <= $v) { - throw new TrapException($instr::opName() . ": overflow", trapKind: TrapKind::IntegerOverflow); - } - $this->stack->pushValue((int) $v); - } - - private function execInstrNumericI64TruncSatF32S(Instrs\Numeric\I64TruncSatF32S $instr): void - { - $v = $this->stack->popFloat(); - if ($v < -9223372036854775808.0) { - $this->stack->pushValue(-9223372036854775808); - } elseif ($v > 9223372036854775807.0) { - $this->stack->pushValue(9223372036854775807); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI64TruncSatF32U(Instrs\Numeric\I64TruncSatF32U $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0.0) { - $this->stack->pushValue(0); - } elseif ($v > 18446744073709551615.0) { - $this->stack->pushValue(18446744073709551615); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI64TruncSatF64S(Instrs\Numeric\I64TruncSatF64S $instr): void - { - $v = $this->stack->popFloat(); - if ($v < -9223372036854775808.0) { - $this->stack->pushValue(-9223372036854775808); - } elseif ($v > 9223372036854775807.0) { - $this->stack->pushValue(9223372036854775807); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI64TruncSatF64U(Instrs\Numeric\I64TruncSatF64U $instr): void - { - $v = $this->stack->popFloat(); - if ($v < 0.0) { - $this->stack->pushValue(0); - } elseif ($v > 18446744073709551615.0) { - $this->stack->pushValue(18446744073709551615); - } else { - $this->stack->pushValue((int) $v); - } - } - - private function execInstrNumericI64Xor(Instrs\Numeric\I64Xor $instr): void - { - $c2 = $this->stack->popInt(); - $c1 = $this->stack->popInt(); - $this->stack->pushValue($c1 ^ $c2); - } - - private function execInstrReferenceRefFunc(Instrs\Reference\RefFunc $instr): void - { - $x = $instr->func; - $f = $this->stack->currentFrame(); - $a = $f->module->funcAddrs[$x]; - $this->stack->pushRefFunc($a); - } - - private function execInstrReferenceRefIsNull(Instrs\Reference\RefIsNull $instr): void - { - $val = $this->stack->popRef(); - $this->stack->pushBool($val instanceof Refs\RefNull); - } - - private function execInstrReferenceRefNull(Instrs\Reference\RefNull $instr): void - { - $t = $instr->type; - $this->stack->pushRefNull($t); - } - - private function execInstrParametricDrop(Instrs\Parametric\Drop $instr): void - { - $this->stack->popValue(); - } - - private function execInstrParametricSelect(Instrs\Parametric\Select $instr): void - { - $c = $this->stack->popInt(); - $val2 = $this->stack->popValue(); - $val1 = $this->stack->popValue(); - if ($c !== 0) { - $this->stack->pushValue($val1); - } else { - $this->stack->pushValue($val2); - } - } - - private function execInstrVariableGlobalGet(Instrs\Variable\GlobalGet $instr): void - { - $x = $instr->var; - $f = $this->stack->currentFrame(); - $a = $f->module->globalAddrs[$x]; - $glob = $this->store->globals[$a]; - $val = $glob->value; - $this->stack->pushValue($val); - } - - private function execInstrVariableGlobalSet(Instrs\Variable\GlobalSet $instr): void - { - $x = $instr->var; - $f = $this->stack->currentFrame(); - $a = $f->module->globalAddrs[$x]; - $glob = $this->store->globals[$a]; - $val = $this->stack->popValue(); - $glob->value = $val; - } - - private function execInstrVariableLocalGet(Instrs\Variable\LocalGet $instr): void - { - $x = $instr->var; - $f = $this->stack->currentFrame(); - $val = $f->locals[$x] ?? null; - if ($val === null) { - throw new RuntimeException("local.get: local $x not found in [$f->debugName]"); - } - $this->stack->pushValue($val); - } - - private function execInstrVariableLocalSet(Instrs\Variable\LocalSet $instr): void - { - $x = $instr->var; - $f = $this->stack->currentFrame(); - $val = $this->stack->popValue(); - // @phpstan-ignore-next-line - $f->locals[$x] = $val; - } - - private function execInstrVariableLocalTee(Instrs\Variable\LocalTee $instr): void - { - $x = $instr->var; - $f = $this->stack->currentFrame(); - $val = $this->stack->popValue(); - // @phpstan-ignore-next-line - $f->locals[$x] = $val; - $this->stack->pushValue($val); - } - - private function execInstrTableElemDrop(Instrs\Table\ElemDrop $instr): void - { - $x = $instr->elem; - $f = $this->stack->currentFrame(); - $a = $f->module->elemAddrs[$x]; - $elem = $this->store->elems[$a]; - // @phpstan-ignore-next-line - $this->store->elems[$a] = new ElemInst($elem->type, []); - } - - private function execInstrTableTableCopy(Instrs\Table\TableCopy $instr): void - { - $x = $instr->to; - $y = $instr->from; - $f = $this->stack->currentFrame(); - $taX = $f->module->tableAddrs[$x]; - $tabX = $this->store->tables[$taX]; - $taY = $f->module->tableAddrs[$y]; - $tabY = $this->store->tables[$taY]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $s = NumericOps::convertS32ToU32($this->stack->popInt()); - $d = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($tabX->elem) < $d + $n || count($tabY->elem) < $s + $n) { - throw new TrapException("table.copy: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - if ($n === 0 || ($x === $y && $d === $s)) { - return; - } - for ($i = 0; $i < $n; $i++) { - $s_ = ($d < $s) ? ($s + $i) : ($s + $n - 1 - $i); - $d_ = ($d < $s) ? ($d + $i) : ($d + $n - 1 - $i); - // @phpstan-ignore-next-line - $tabX->elem[$d_] = $tabY->elem[$s_]; - } - } - - private function execInstrTableTableFill(Instrs\Table\TableFill $instr): void - { - $x = $instr->table; - $f = $this->stack->currentFrame(); - $ta = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$ta]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $val = $this->stack->popRef(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($tab->elem) < $i + $n) { - throw new TrapException("table.fill: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - for ($k = 0; $k < $n; $k++) { - // @phpstan-ignore-next-line - $tab->elem[$i + $k] = $val; - } - } - - private function execInstrTableTableGet(Instrs\Table\TableGet $instr): void - { - $x = $instr->table; - $f = $this->stack->currentFrame(); - $a = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($tab->elem) <= $i) { - throw new TrapException("table.get: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - $val = $tab->elem[$i]; - $this->stack->pushValue($val); - } - - private function execInstrTableTableGrow(Instrs\Table\TableGrow $instr): void - { - $x = $instr->table; - $f = $this->stack->currentFrame(); - $a = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$a]; - $sz = count($tab->elem); - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $val = $this->stack->popRef(); - - $len = $sz + $n; - if ((1 << 32) <= $len) { - $this->stack->pushValue(-1); - return; - } - - $limits = $tab->type->limits; - $limits_ = new Limits($len, $limits->max); - if (!$limits_->isValid()) { - $this->stack->pushValue(-1); - return; - } - - for ($i = 0; $i < $n; $i++) { - $tab->elem[] = $val; - } - $tab->type = new TableType($limits_, $tab->type->refType); - - $this->stack->pushValue($sz); - } - - private function execInstrTableTableInit(Instrs\Table\TableInit $instr): void - { - $x = $instr->to; - $y = $instr->from; - $f = $this->stack->currentFrame(); - $ta = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$ta]; - $ea = $f->module->elemAddrs[$y]; - $elem = $this->store->elems[$ea]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $s = NumericOps::convertS32ToU32($this->stack->popInt()); - $d = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($elem->elem) < $s + $n) { - throw new TrapException("table.init: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - if (count($tab->elem) < $d + $n) { - throw new TrapException("table.init: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - for ($i = 0; $i < $n; $i++) { - // @phpstan-ignore-next-line - $tab->elem[$d + $i] = $elem->elem[$s + $i]; - } - } - - private function execInstrTableTableSet(Instrs\Table\TableSet $instr): void - { - $x = $instr->table; - $f = $this->stack->currentFrame(); - $a = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$a]; - $val = $this->stack->popRef(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($tab->elem) <= $i) { - throw new TrapException("table.set: out of bounds", trapKind: TrapKind::OutOfBoundsTableAccess); - } - // @phpstan-ignore-next-line - $tab->elem[$i] = $val; - } - - private function execInstrTableTableSize(Instrs\Table\TableSize $instr): void - { - $x = $instr->table; - $f = $this->stack->currentFrame(); - $a = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$a]; - $sz = count($tab->elem); - $this->stack->pushValue($sz); - } - - private function execInstrMemoryDataDrop(Instrs\Memory\DataDrop $instr): void - { - $x = $instr->data; - $f = $this->stack->currentFrame(); - $a = $f->module->dataAddrs[$x]; - // @phpstan-ignore-next-line - $this->store->datas[$a] = new DataInst([]); - } - - private function execInstrMemoryF32Load(Instrs\Memory\F32Load $instr): void - { - $this->doLoadF32($instr->offset, $instr::opName()); - } - - private function execInstrMemoryF32Store(Instrs\Memory\F32Store $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popFloat(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeF32($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryF64Load(Instrs\Memory\F64Load $instr): void - { - $this->doLoadF64($instr->offset, $instr::opName()); - } - - private function execInstrMemoryF64Store(Instrs\Memory\F64Store $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popFloat(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeF64($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI32Load(Instrs\Memory\I32Load $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI32_s32($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI32Load16S(Instrs\Memory\I32Load16S $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI32_s16($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI32Load16U(Instrs\Memory\I32Load16U $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI32_u16($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI32Load8S(Instrs\Memory\I32Load8S $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI32_s8($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI32Load8U(Instrs\Memory\I32Load8U $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI32_u8($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI32Store(Instrs\Memory\I32Store $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI32_s32($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI32Store16(Instrs\Memory\I32Store16 $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI32_s16($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI32Store8(Instrs\Memory\I32Store8 $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI32_s8($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI64Load(Instrs\Memory\I64Load $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_s64($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load16S(Instrs\Memory\I64Load16S $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_s16($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load16U(Instrs\Memory\I64Load16U $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_u16($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load32S(Instrs\Memory\I64Load32S $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_s32($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load32U(Instrs\Memory\I64Load32U $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_u32($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load8S(Instrs\Memory\I64Load8S $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_s8($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Load8U(Instrs\Memory\I64Load8U $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadI64_u8($ea); - if ($c === null) { - throw new TrapException($instr::opName() . ": out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function execInstrMemoryI64Store(Instrs\Memory\I64Store $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI64_s64($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds: $ea >= " . $mem->size(), trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI64Store16(Instrs\Memory\I64Store16 $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI64_s16($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds: $ea >= " . $mem->size(), trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI64Store32(Instrs\Memory\I64Store32 $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI64_s32($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds: $ea >= " . $mem->size(), trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryI64Store8(Instrs\Memory\I64Store8 $instr): void - { - $offset = $instr->offset; - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $c = $this->stack->popInt(); - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $ok = $mem->storeI64_s8($ea, $c); - if (!$ok) { - throw new TrapException($instr::opName() . ": out of bounds: $ea >= " . $mem->size(), trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - } - - private function execInstrMemoryMemoryCopy(Instrs\Memory\MemoryCopy $instr): void - { - $f = $this->stack->currentFrame(); - $ma = $f->module->memAddrs[0]; - $mem = $this->store->mems[$ma]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $s = NumericOps::convertS32ToU32($this->stack->popInt()); - $d = NumericOps::convertS32ToU32($this->stack->popInt()); - if ($mem->size() < $s + $n || $mem->size() < $d + $n) { - throw new TrapException("memory.copy: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $mem->memcpy($d, $s, $n); - } - - private function execInstrMemoryMemoryFill(Instrs\Memory\MemoryFill $instr): void - { - $f = $this->stack->currentFrame(); - $ma = $f->module->memAddrs[0]; - $mem = $this->store->mems[$ma]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $val = $this->stack->popInt(); - $d = NumericOps::convertS32ToU32($this->stack->popInt()); - if ($mem->size() < $d + $n) { - throw new TrapException("memory.fill: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $mem->memset($d, $val, $n); - } - - private function execInstrMemoryMemoryGrow(Instrs\Memory\MemoryGrow $instr): void - { - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $result = $mem->grow($n); - $this->stack->pushValue($result); - } - - private function execInstrMemoryMemoryInit(Instrs\Memory\MemoryInit $instr): void - { - $x = $instr->data; - $f = $this->stack->currentFrame(); - $ma = $f->module->memAddrs[0]; - $mem = $this->store->mems[$ma]; - $da = $f->module->dataAddrs[$x]; - $data = $this->store->datas[$da]; - $n = NumericOps::convertS32ToU32($this->stack->popInt()); - $s = NumericOps::convertS32ToU32($this->stack->popInt()); - $d = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($data->data) < $s + $n) { - throw new TrapException("memory.init: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - if ($mem->size() < $d + $n) { - throw new TrapException("memory.init: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $mem->copyData($data->data, $s, $d, $n); - } - - private function execInstrMemoryMemorySize(Instrs\Memory\MemorySize $instr): void - { - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $szInByte = $mem->size(); - assert(is_int($szInByte / (64 * 1024))); - $sz = $szInByte / (64 * 1024); - $this->stack->pushValue($sz); - } - - private function execInstrControlBlock(Instrs\Control\Block $instr): ?int - { - $blockType = $instr->type; - $instrs = $instr->body; - $f = $this->stack->currentFrame(); - $bt = self::expandBlockType($blockType, $f->module); - $params = array_reverse($this->stack->popNValues(count($bt->params->types))); - $n = count($bt->results->types); - $l = new Label($n); - $result = $this->execInstrs($instrs, $l, $params); - if ($result === null) { - // Do nothing. - } elseif ($result === -1) { - return -1; - } elseif ($result === 0) { - $this->deactivateLabel($n); - } else { - $this->deactivateLabel(null); - return $result - 1; - } - return null; - } - - private function execInstrControlBr(Instrs\Control\Br $instr): int - { - return $instr->label; - } - - private function execInstrControlBrIf(Instrs\Control\BrIf $instr): ?int - { - $l = $instr->label; - $c = $this->stack->popInt(); - if ($c !== 0) { - return $l; - } else { - return null; - } - } - - private function execInstrControlBrTable(Instrs\Control\BrTable $instr): int - { - $ls = $instr->labelTable; - $ln = $instr->defaultLabel; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - if ($i < count($ls)) { - return $ls[$i]; - } else { - return $ln; - } - } - - private function execInstrControlCall(Instrs\Control\Call $instr): void - { - $x = $instr->func; - $f = $this->stack->currentFrame(); - $a = $f->module->funcAddrs[$x]; - $this->doInvokeFunc($a); - } - - private function execInstrControlCallIndirect(Instrs\Control\CallIndirect $instr): void - { - $x = $instr->funcTable; - $y = $instr->type; - $f = $this->stack->currentFrame(); - $ta = $f->module->tableAddrs[$x]; - $tab = $this->store->tables[$ta]; - $ftExpect = $f->module->types[$y]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - if (count($tab->elem) <= $i) { - throw new TrapException("call_indirect: out of bounds", trapKind: TrapKind::UndefinedElement); - } - $r = $tab->elem[$i]; - if ($r instanceof Refs\RefNull) { - throw new TrapException("call_indirect: ref.null", trapKind: TrapKind::UninitializedElement); - } - assert($r instanceof Refs\RefFunc); - $a = $r->addr; - $fn = $this->store->funcs[$a]; - assert($fn instanceof FuncInsts\Wasm || $fn instanceof FuncInsts\Host); - $ftActual = $fn->type; - if (!$ftExpect->equals($ftActual)) { - throw new TrapException("call_indirect: type mismatch", trapKind: TrapKind::IndirectCallTypeMismatch); - } - $this->doInvokeFunc($a); - } - - private function execInstrControlElse_(Instrs\Control\Else_ $instr): void - { - // Do nothing. - } - - private function execInstrControlEnd(Instrs\Control\End $instr): void - { - // Do nothing. - } - - private function execInstrControlIf_(Instrs\Control\If_ $instr): ?int - { - $blockType = $instr->type; - $instrs1 = $instr->thenBody; - $instrs2 = $instr->elseBody; - $c = $this->stack->popInt(); - if ($c !== 0) { - return $this->execInstr(Instr::Block($blockType, $instrs1)); - } else { - return $this->execInstr(Instr::Block($blockType, $instrs2)); - } - } - - private function execInstrControlLoop(Instrs\Control\Loop $instr): ?int - { - $blockType = $instr->type; - $instrs = $instr->body; - $f = $this->stack->currentFrame(); - $bt = self::expandBlockType($blockType, $f->module); - $m = count($bt->params->types); - $l = new Label($m); - while (true) { - $params = array_reverse($this->stack->popNValues($m)); - $result = $this->execInstrs($instrs, $l, $params); - if ($result === null) { - return null; - } elseif ($result === -1) { - return -1; - } elseif ($result === 0) { - $this->deactivateLabel($m); - continue; - } else { - $this->deactivateLabel(null); - return $result - 1; - } - } - } - - private function execInstrControlNop(Instrs\Control\Nop $instr): void - { - // Do nothing. - } - - private function execInstrControlReturn_(Instrs\Control\Return_ $instr): int - { - return -1; - } - - private function execInstrControlUnreachable(Instrs\Control\Unreachable $instr): void - { - throw new TrapException("unreachable", trapKind: TrapKind::Unreachable); - } - - private function doLoadF32(int $offset, string $instrOpName): void - { - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadF32($ea); - if ($c === null) { - throw new TrapException("$instrOpName: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private function doLoadF64(int $offset, string $instrOpName): void - { - $f = $this->stack->currentFrame(); - $a = $f->module->memAddrs[0]; - $mem = $this->store->mems[$a]; - $i = NumericOps::convertS32ToU32($this->stack->popInt()); - $ea = $i + $offset; - $c = $mem->loadF64($ea); - if ($c === null) { - throw new TrapException("$instrOpName: out of bounds", trapKind: TrapKind::OutOfBoundsMemoryAccess); - } - $this->stack->pushValue($c); - } - - private static function defaultValueFromValType(ValType $type): int|float|Ref - { - return match ($type::class) { - ValTypes\NumType::class => match ($type->inner) { - NumType::I32 => 0, - NumType::I64 => 0, - NumType::F32 => 0.0, - NumType::F64 => 0.0, - }, - ValTypes\RefType::class => Ref::RefNull($type->inner), - default => throw new RuntimeException("unreachable"), - }; - } - - private static function expandBlockType(BlockType $bt, ModuleInst $module): FuncType - { - if ($bt instanceof BlockTypes\TypeIdx) { - return $module->types[$bt->inner]; - } elseif ($bt instanceof BlockTypes\ValType) { - $t = $bt->inner; - return new FuncType( - new ResultType([]), - new ResultType($t === null ? [] : [$t]), - ); - } else { - throw new RuntimeException("expand(): invalid blocktype"); - } - } -} |