Files
wazero/internal/engine/interpreter/interpreter.go
Crypt Keeper 939403c10b Makes it possible to implement FunctionListener and Factory (#716)
This simplifies FunctionListener definition by making it possible to
implement both interfaces without intermediate state. Passing the
function definition to the before/after callbacks is the key.

This also continues efforts towards Go 1.19 doc formatting.

Signed-off-by: Adrian Cole <adrian@tetrate.io>
2022-07-25 12:53:41 +08:00

4327 lines
142 KiB
Go

package interpreter
import (
"context"
"encoding/binary"
"fmt"
"math"
"math/bits"
"reflect"
"strings"
"sync"
"unsafe"
"github.com/tetratelabs/wazero/experimental"
"github.com/tetratelabs/wazero/internal/buildoptions"
"github.com/tetratelabs/wazero/internal/moremath"
"github.com/tetratelabs/wazero/internal/wasm"
"github.com/tetratelabs/wazero/internal/wasmdebug"
"github.com/tetratelabs/wazero/internal/wasmruntime"
"github.com/tetratelabs/wazero/internal/wazeroir"
)
var callStackCeiling = buildoptions.CallStackCeiling
// engine is an interpreter implementation of wasm.Engine
type engine struct {
enabledFeatures wasm.Features
codes map[wasm.ModuleID][]*code // guarded by mutex.
mux sync.RWMutex
}
func NewEngine(enabledFeatures wasm.Features) wasm.Engine {
return &engine{
enabledFeatures: enabledFeatures,
codes: map[wasm.ModuleID][]*code{},
}
}
// CompiledModuleCount implements the same method as documented on wasm.Engine.
func (e *engine) CompiledModuleCount() uint32 {
return uint32(len(e.codes))
}
// DeleteCompiledModule implements the same method as documented on wasm.Engine.
func (e *engine) DeleteCompiledModule(m *wasm.Module) {
e.deleteCodes(m)
}
func (e *engine) deleteCodes(module *wasm.Module) {
e.mux.Lock()
defer e.mux.Unlock()
delete(e.codes, module.ID)
}
func (e *engine) addCodes(module *wasm.Module, fs []*code) {
e.mux.Lock()
defer e.mux.Unlock()
e.codes[module.ID] = fs
}
func (e *engine) getCodes(module *wasm.Module) (fs []*code, ok bool) {
e.mux.RLock()
defer e.mux.RUnlock()
fs, ok = e.codes[module.ID]
return
}
// moduleEngine implements wasm.ModuleEngine
type moduleEngine struct {
// name is the name the module was instantiated with used for error handling.
name string
// codes are the compiled functions in a module instances.
// The index is module instance-scoped.
functions []*function
// parentEngine holds *engine from which this module engine is created from.
parentEngine *engine
importedFunctionCount uint32
}
// callEngine holds context per moduleEngine.Call, and shared across all the
// function calls originating from the same moduleEngine.Call execution.
type callEngine struct {
// stack contains the operands.
// Note that all the values are represented as uint64.
stack []uint64
// frames are the function call stack.
frames []*callFrame
}
func (e *moduleEngine) newCallEngine() *callEngine {
return &callEngine{}
}
func (ce *callEngine) pushValue(v uint64) {
ce.stack = append(ce.stack, v)
}
func (ce *callEngine) popValue() (v uint64) {
// No need to check stack bound
// as we can assume that all the operations
// are valid thanks to validateFunction
// at module validation phase
// and wazeroir translation
// before compilation.
stackTopIndex := len(ce.stack) - 1
v = ce.stack[stackTopIndex]
ce.stack = ce.stack[:stackTopIndex]
return
}
// peekValues peeks api.ValueType values from the stack and returns them.
func (ce *callEngine) peekValues(count int) []uint64 {
if count == 0 {
return nil
}
stackLen := len(ce.stack)
return ce.stack[stackLen-count : stackLen]
}
func (ce *callEngine) drop(r *wazeroir.InclusiveRange) {
// No need to check stack bound
// as we can assume that all the operations
// are valid thanks to validateFunction
// at module validation phase
// and wazeroir translation
// before compilation.
if r == nil {
return
} else if r.Start == 0 {
ce.stack = ce.stack[:len(ce.stack)-1-r.End]
} else {
newStack := ce.stack[:len(ce.stack)-1-r.End]
newStack = append(newStack, ce.stack[len(ce.stack)-r.Start:]...)
ce.stack = newStack
}
}
func (ce *callEngine) pushFrame(frame *callFrame) {
if callStackCeiling <= len(ce.frames) {
panic(wasmruntime.ErrRuntimeCallStackOverflow)
}
ce.frames = append(ce.frames, frame)
}
func (ce *callEngine) popFrame() (frame *callFrame) {
// No need to check stack bound as we can assume that all the operations are valid thanks to validateFunction at
// module validation phase and wazeroir translation before compilation.
oneLess := len(ce.frames) - 1
frame = ce.frames[oneLess]
ce.frames = ce.frames[:oneLess]
return
}
type callFrame struct {
// pc is the program counter representing the current position in code.body.
pc uint64
// f is the compiled function used in this function frame.
f *function
}
type code struct {
body []*interpreterOp
hostFn *reflect.Value
}
type function struct {
source *wasm.FunctionInstance
body []*interpreterOp
hostFn *reflect.Value
}
// functionFromUintptr resurrects the original *function from the given uintptr
// which comes from either funcref table or OpcodeRefFunc instruction.
func functionFromUintptr(ptr uintptr) *function {
// Wraps ptrs as the double pointer in order to avoid the unsafe access as detected by race detector.
//
// For example, if we have (*function)(unsafe.Pointer(ptr)) instead, then the race detector's "checkptr"
// subroutine wanrs as "checkptr: pointer arithmetic result points to invalid allocation"
// https://github.com/golang/go/blob/1ce7fcf139417d618c2730010ede2afb41664211/src/runtime/checkptr.go#L69
var wrapped *uintptr = &ptr
return *(**function)(unsafe.Pointer(wrapped))
}
func (c *code) instantiate(f *wasm.FunctionInstance) *function {
return &function{
source: f,
body: c.body,
hostFn: c.hostFn,
}
}
// interpreterOp is the compilation (engine.lowerIR) result of a wazeroir.Operation.
//
// Not all operations result in an interpreterOp, e.g. wazeroir.OperationI32ReinterpretFromF32, and some operations are
// more complex than others, e.g. wazeroir.OperationBrTable.
//
// Note: This is a form of union type as it can store fields needed for any operation. Hence, most fields are opaque and
// only relevant when in context of its kind.
type interpreterOp struct {
// kind determines how to interpret the other fields in this struct.
kind wazeroir.OperationKind
b1, b2 byte
b3 bool
us []uint64
rs []*wazeroir.InclusiveRange
}
// CompileModule implements the same method as documented on wasm.Engine.
func (e *engine) CompileModule(ctx context.Context, module *wasm.Module) error {
if _, ok := e.getCodes(module); ok { // cache hit!
return nil
}
funcs := make([]*code, 0, len(module.FunctionSection))
irs, err := wazeroir.CompileFunctions(ctx, e.enabledFeatures, module)
if err != nil {
return err
}
for i, ir := range irs {
// If this is the host function, there's nothing to do as the runtime representation of
// host function in interpreter is its Go function itself as opposed to Wasm functions,
// which need to be compiled down to wazeroir.
if ir.GoFunc != nil {
funcs = append(funcs, &code{hostFn: ir.GoFunc})
continue
} else if compiled, err := e.lowerIR(ir); err != nil {
def := module.FunctionDefinitionSection[uint32(i)+module.ImportFuncCount()]
return fmt.Errorf("failed to lower func[%s] to wazeroir: %w", def.DebugName(), err)
} else {
funcs = append(funcs, compiled)
}
}
e.addCodes(module, funcs)
return nil
}
// NewModuleEngine implements the same method as documented on wasm.Engine.
func (e *engine) NewModuleEngine(name string, module *wasm.Module, importedFunctions, moduleFunctions []*wasm.FunctionInstance, tables []*wasm.TableInstance, tableInits []wasm.TableInitEntry) (wasm.ModuleEngine, error) {
imported := uint32(len(importedFunctions))
me := &moduleEngine{
name: name,
parentEngine: e,
importedFunctionCount: imported,
}
for _, f := range importedFunctions {
cf := f.Module.Engine.(*moduleEngine).functions[f.Idx]
me.functions = append(me.functions, cf)
}
codes, ok := e.getCodes(module)
if !ok {
return nil, fmt.Errorf("source module for %s must be compiled before instantiation", name)
}
for i, c := range codes {
f := moduleFunctions[i]
insntantiatedcode := c.instantiate(f)
me.functions = append(me.functions, insntantiatedcode)
}
for _, init := range tableInits {
references := tables[init.TableIndex].References
if int(init.Offset)+len(init.FunctionIndexes) > len(references) {
return me, wasm.ErrElementOffsetOutOfBounds
}
for i, fnIndex := range init.FunctionIndexes {
if fnIndex != nil {
references[init.Offset+uint32(i)] = uintptr(unsafe.Pointer(me.functions[*fnIndex]))
}
}
}
return me, nil
}
// lowerIR lowers the wazeroir operations to engine friendly struct.
func (e *engine) lowerIR(ir *wazeroir.CompilationResult) (*code, error) {
ops := ir.Operations
ret := &code{}
labelAddress := map[string]uint64{}
onLabelAddressResolved := map[string][]func(addr uint64){}
for _, original := range ops {
op := &interpreterOp{kind: original.Kind()}
switch o := original.(type) {
case *wazeroir.OperationUnreachable:
case *wazeroir.OperationLabel:
labelKey := o.Label.String()
address := uint64(len(ret.body))
labelAddress[labelKey] = address
for _, cb := range onLabelAddressResolved[labelKey] {
cb(address)
}
delete(onLabelAddressResolved, labelKey)
// We just ignore the label operation
// as we translate branch operations to the direct address jmp.
continue
case *wazeroir.OperationBr:
op.us = make([]uint64, 1)
if o.Target.IsReturnTarget() {
// Jmp to the end of the possible binary.
op.us[0] = math.MaxUint64
} else {
labelKey := o.Target.String()
addr, ok := labelAddress[labelKey]
if !ok {
// If this is the forward jump (e.g. to the continuation of if, etc.),
// the target is not emitted yet, so resolve the address later.
onLabelAddressResolved[labelKey] = append(onLabelAddressResolved[labelKey],
func(addr uint64) {
op.us[0] = addr
},
)
} else {
op.us[0] = addr
}
}
case *wazeroir.OperationBrIf:
op.rs = make([]*wazeroir.InclusiveRange, 2)
op.us = make([]uint64, 2)
for i, target := range []*wazeroir.BranchTargetDrop{o.Then, o.Else} {
op.rs[i] = target.ToDrop
if target.Target.IsReturnTarget() {
// Jmp to the end of the possible binary.
op.us[i] = math.MaxUint64
} else {
labelKey := target.Target.String()
addr, ok := labelAddress[labelKey]
if !ok {
i := i
// If this is the forward jump (e.g. to the continuation of if, etc.),
// the target is not emitted yet, so resolve the address later.
onLabelAddressResolved[labelKey] = append(onLabelAddressResolved[labelKey],
func(addr uint64) {
op.us[i] = addr
},
)
} else {
op.us[i] = addr
}
}
}
case *wazeroir.OperationBrTable:
targets := append([]*wazeroir.BranchTargetDrop{o.Default}, o.Targets...)
op.rs = make([]*wazeroir.InclusiveRange, len(targets))
op.us = make([]uint64, len(targets))
for i, target := range targets {
op.rs[i] = target.ToDrop
if target.Target.IsReturnTarget() {
// Jmp to the end of the possible binary.
op.us[i] = math.MaxUint64
} else {
labelKey := target.Target.String()
addr, ok := labelAddress[labelKey]
if !ok {
i := i // pin index for later resolution
// If this is the forward jump (e.g. to the continuation of if, etc.),
// the target is not emitted yet, so resolve the address later.
onLabelAddressResolved[labelKey] = append(onLabelAddressResolved[labelKey],
func(addr uint64) {
op.us[i] = addr
},
)
} else {
op.us[i] = addr
}
}
}
case *wazeroir.OperationCall:
op.us = make([]uint64, 1)
op.us = []uint64{uint64(o.FunctionIndex)}
case *wazeroir.OperationCallIndirect:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.TypeIndex)
op.us[1] = uint64(o.TableIndex)
case *wazeroir.OperationDrop:
op.rs = make([]*wazeroir.InclusiveRange, 1)
op.rs[0] = o.Depth
case *wazeroir.OperationSelect:
op.b3 = o.IsTargetVector
case *wazeroir.OperationPick:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.Depth)
op.b3 = o.IsTargetVector
case *wazeroir.OperationSwap:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.Depth)
op.b3 = o.IsTargetVector
case *wazeroir.OperationGlobalGet:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.Index)
case *wazeroir.OperationGlobalSet:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.Index)
case *wazeroir.OperationLoad:
op.b1 = byte(o.Type)
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationLoad8:
op.b1 = byte(o.Type)
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationLoad16:
op.b1 = byte(o.Type)
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationLoad32:
if o.Signed {
op.b1 = 1
}
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationStore:
op.b1 = byte(o.Type)
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationStore8:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationStore16:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationStore32:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationMemorySize:
case *wazeroir.OperationMemoryGrow:
case *wazeroir.OperationConstI32:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.Value)
case *wazeroir.OperationConstI64:
op.us = make([]uint64, 1)
op.us[0] = o.Value
case *wazeroir.OperationConstF32:
op.us = make([]uint64, 1)
op.us[0] = uint64(math.Float32bits(o.Value))
case *wazeroir.OperationConstF64:
op.us = make([]uint64, 1)
op.us[0] = math.Float64bits(o.Value)
case *wazeroir.OperationEq:
op.b1 = byte(o.Type)
case *wazeroir.OperationNe:
op.b1 = byte(o.Type)
case *wazeroir.OperationEqz:
op.b1 = byte(o.Type)
case *wazeroir.OperationLt:
op.b1 = byte(o.Type)
case *wazeroir.OperationGt:
op.b1 = byte(o.Type)
case *wazeroir.OperationLe:
op.b1 = byte(o.Type)
case *wazeroir.OperationGe:
op.b1 = byte(o.Type)
case *wazeroir.OperationAdd:
op.b1 = byte(o.Type)
case *wazeroir.OperationSub:
op.b1 = byte(o.Type)
case *wazeroir.OperationMul:
op.b1 = byte(o.Type)
case *wazeroir.OperationClz:
op.b1 = byte(o.Type)
case *wazeroir.OperationCtz:
op.b1 = byte(o.Type)
case *wazeroir.OperationPopcnt:
op.b1 = byte(o.Type)
case *wazeroir.OperationDiv:
op.b1 = byte(o.Type)
case *wazeroir.OperationRem:
op.b1 = byte(o.Type)
case *wazeroir.OperationAnd:
op.b1 = byte(o.Type)
case *wazeroir.OperationOr:
op.b1 = byte(o.Type)
case *wazeroir.OperationXor:
op.b1 = byte(o.Type)
case *wazeroir.OperationShl:
op.b1 = byte(o.Type)
case *wazeroir.OperationShr:
op.b1 = byte(o.Type)
case *wazeroir.OperationRotl:
op.b1 = byte(o.Type)
case *wazeroir.OperationRotr:
op.b1 = byte(o.Type)
case *wazeroir.OperationAbs:
op.b1 = byte(o.Type)
case *wazeroir.OperationNeg:
op.b1 = byte(o.Type)
case *wazeroir.OperationCeil:
op.b1 = byte(o.Type)
case *wazeroir.OperationFloor:
op.b1 = byte(o.Type)
case *wazeroir.OperationTrunc:
op.b1 = byte(o.Type)
case *wazeroir.OperationNearest:
op.b1 = byte(o.Type)
case *wazeroir.OperationSqrt:
op.b1 = byte(o.Type)
case *wazeroir.OperationMin:
op.b1 = byte(o.Type)
case *wazeroir.OperationMax:
op.b1 = byte(o.Type)
case *wazeroir.OperationCopysign:
op.b1 = byte(o.Type)
case *wazeroir.OperationI32WrapFromI64:
case *wazeroir.OperationITruncFromF:
op.b1 = byte(o.InputType)
op.b2 = byte(o.OutputType)
op.b3 = o.NonTrapping
case *wazeroir.OperationFConvertFromI:
op.b1 = byte(o.InputType)
op.b2 = byte(o.OutputType)
case *wazeroir.OperationF32DemoteFromF64:
case *wazeroir.OperationF64PromoteFromF32:
case *wazeroir.OperationI32ReinterpretFromF32,
*wazeroir.OperationI64ReinterpretFromF64,
*wazeroir.OperationF32ReinterpretFromI32,
*wazeroir.OperationF64ReinterpretFromI64:
// Reinterpret ops are essentially nop for engine mode
// because we treat all values as uint64, and Reinterpret* is only used at module
// validation phase where we check type soundness of all the operations.
// So just eliminate the ops.
continue
case *wazeroir.OperationExtend:
if o.Signed {
op.b1 = 1
}
case *wazeroir.OperationSignExtend32From8, *wazeroir.OperationSignExtend32From16, *wazeroir.OperationSignExtend64From8,
*wazeroir.OperationSignExtend64From16, *wazeroir.OperationSignExtend64From32:
case *wazeroir.OperationMemoryInit:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.DataIndex)
case *wazeroir.OperationDataDrop:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.DataIndex)
case *wazeroir.OperationMemoryCopy:
case *wazeroir.OperationMemoryFill:
case *wazeroir.OperationTableInit:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.ElemIndex)
op.us[1] = uint64(o.TableIndex)
case *wazeroir.OperationElemDrop:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.ElemIndex)
case *wazeroir.OperationTableCopy:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.SrcTableIndex)
op.us[1] = uint64(o.DstTableIndex)
case *wazeroir.OperationRefFunc:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.FunctionIndex)
case *wazeroir.OperationTableGet:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.TableIndex)
case *wazeroir.OperationTableSet:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.TableIndex)
case *wazeroir.OperationTableSize:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.TableIndex)
case *wazeroir.OperationTableGrow:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.TableIndex)
case *wazeroir.OperationTableFill:
op.us = make([]uint64, 1)
op.us[0] = uint64(o.TableIndex)
case *wazeroir.OperationV128Const:
op.us = make([]uint64, 2)
op.us[0] = o.Lo
op.us[1] = o.Hi
case *wazeroir.OperationV128Add:
op.b1 = o.Shape
case *wazeroir.OperationV128Sub:
op.b1 = o.Shape
case *wazeroir.OperationV128Load:
op.b1 = o.Type
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationV128LoadLane:
op.b1 = o.LaneSize
op.b2 = o.LaneIndex
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationV128Store:
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationV128StoreLane:
op.b1 = o.LaneSize
op.b2 = o.LaneIndex
op.us = make([]uint64, 2)
op.us[0] = uint64(o.Arg.Alignment)
op.us[1] = uint64(o.Arg.Offset)
case *wazeroir.OperationV128ExtractLane:
op.b1 = o.Shape
op.b2 = o.LaneIndex
op.b3 = o.Signed
case *wazeroir.OperationV128ReplaceLane:
op.b1 = o.Shape
op.b2 = o.LaneIndex
case *wazeroir.OperationV128Splat:
op.b1 = o.Shape
case *wazeroir.OperationV128Shuffle:
op.us = make([]uint64, 16)
for i, l := range o.Lanes {
op.us[i] = uint64(l)
}
case *wazeroir.OperationV128Swizzle:
case *wazeroir.OperationV128AnyTrue:
case *wazeroir.OperationV128AllTrue:
op.b1 = o.Shape
case *wazeroir.OperationV128BitMask:
op.b1 = o.Shape
case *wazeroir.OperationV128And:
case *wazeroir.OperationV128Not:
case *wazeroir.OperationV128Or:
case *wazeroir.OperationV128Xor:
case *wazeroir.OperationV128Bitselect:
case *wazeroir.OperationV128AndNot:
case *wazeroir.OperationV128Shr:
op.b1 = o.Shape
op.b3 = o.Signed
case *wazeroir.OperationV128Shl:
op.b1 = o.Shape
case *wazeroir.OperationV128Cmp:
op.b1 = o.Type
case *wazeroir.OperationV128AddSat:
op.b1 = o.Shape
op.b3 = o.Signed
case *wazeroir.OperationV128SubSat:
op.b1 = o.Shape
op.b3 = o.Signed
case *wazeroir.OperationV128Mul:
op.b1 = o.Shape
case *wazeroir.OperationV128Div:
op.b1 = o.Shape
case *wazeroir.OperationV128Neg:
op.b1 = o.Shape
case *wazeroir.OperationV128Sqrt:
op.b1 = o.Shape
case *wazeroir.OperationV128Abs:
op.b1 = o.Shape
case *wazeroir.OperationV128Popcnt:
case *wazeroir.OperationV128Min:
op.b1 = o.Shape
op.b3 = o.Signed
case *wazeroir.OperationV128Max:
op.b1 = o.Shape
op.b3 = o.Signed
case *wazeroir.OperationV128AvgrU:
op.b1 = o.Shape
case *wazeroir.OperationV128Pmin:
op.b1 = o.Shape
case *wazeroir.OperationV128Pmax:
op.b1 = o.Shape
case *wazeroir.OperationV128Ceil:
op.b1 = o.Shape
case *wazeroir.OperationV128Floor:
op.b1 = o.Shape
case *wazeroir.OperationV128Trunc:
op.b1 = o.Shape
case *wazeroir.OperationV128Nearest:
op.b1 = o.Shape
case *wazeroir.OperationV128Extend:
op.b1 = o.OriginShape
if o.Signed {
op.b2 = 1
}
op.b3 = o.UseLow
case *wazeroir.OperationV128ExtMul:
op.b1 = o.OriginShape
if o.Signed {
op.b2 = 1
}
op.b3 = o.UseLow
case *wazeroir.OperationV128Q15mulrSatS:
case *wazeroir.OperationV128ExtAddPairwise:
op.b1 = o.OriginShape
op.b3 = o.Signed
case *wazeroir.OperationV128FloatPromote:
case *wazeroir.OperationV128FloatDemote:
case *wazeroir.OperationV128FConvertFromI:
op.b1 = o.DestinationShape
op.b3 = o.Signed
case *wazeroir.OperationV128Dot:
case *wazeroir.OperationV128Narrow:
op.b1 = o.OriginShape
op.b3 = o.Signed
case *wazeroir.OperationV128ITruncSatFromF:
op.b1 = o.OriginShape
op.b3 = o.Signed
default:
panic(fmt.Errorf("BUG: unimplemented operation %s", op.kind.String()))
}
ret.body = append(ret.body, op)
}
if len(onLabelAddressResolved) > 0 {
keys := make([]string, 0, len(onLabelAddressResolved))
for key := range onLabelAddressResolved {
keys = append(keys, key)
}
return nil, fmt.Errorf("labels are not defined: %s", strings.Join(keys, ","))
}
return ret, nil
}
// Name implements the same method as documented on wasm.ModuleEngine.
func (e *moduleEngine) Name() string {
return e.name
}
// CreateFuncElementInstance implements the same method as documented on wasm.ModuleEngine.
func (e *moduleEngine) CreateFuncElementInstance(indexes []*wasm.Index) *wasm.ElementInstance {
refs := make([]wasm.Reference, len(indexes))
for i, index := range indexes {
if index != nil {
refs[i] = uintptr(unsafe.Pointer(e.functions[*index]))
}
}
return &wasm.ElementInstance{
References: refs,
Type: wasm.RefTypeFuncref,
}
}
// InitializeFuncrefGlobals implements the same method as documented on wasm.InitializeFuncrefGlobals.
func (e *moduleEngine) InitializeFuncrefGlobals(globals []*wasm.GlobalInstance) {
for _, g := range globals {
if g.Type.ValType == wasm.ValueTypeFuncref {
if int64(g.Val) == wasm.GlobalInstanceNullFuncRefValue {
g.Val = 0 // Null funcref is expressed as zero.
} else {
// Lowers the stored function index into the interpreter specific function's opaque pointer.
g.Val = uint64(uintptr(unsafe.Pointer(e.functions[g.Val])))
}
}
}
}
// Call implements the same method as documented on wasm.ModuleEngine.
func (e *moduleEngine) Call(ctx context.Context, m *wasm.CallContext, f *wasm.FunctionInstance, params ...uint64) (results []uint64, err error) {
// Note: The input parameters are pre-validated, so a compiled function is only absent on close. Updates to
// code on close aren't locked, neither is this read.
compiled := e.functions[f.Idx]
if compiled == nil { // Lazy check the cause as it could be because the module was already closed.
if err = m.FailIfClosed(); err == nil {
panic(fmt.Errorf("BUG: %s.codes[%d] was nil before close", e.name, f.Idx))
}
return
}
paramSignature := f.Type.ParamNumInUint64
paramCount := len(params)
if paramSignature != paramCount {
return nil, fmt.Errorf("expected %d params, but passed %d", paramSignature, paramCount)
}
ce := e.newCallEngine()
defer func() {
// If the module closed during the call, and the call didn't err for another reason, set an ExitError.
if err == nil {
err = m.FailIfClosed()
}
// TODO: ^^ Will not fail if the function was imported from a closed module.
if v := recover(); v != nil {
builder := wasmdebug.NewErrorBuilder()
frameCount := len(ce.frames)
for i := 0; i < frameCount; i++ {
frame := ce.popFrame()
def := frame.f.source.Definition()
builder.AddFrame(def.DebugName(), def.ParamTypes(), def.ResultTypes())
}
err = builder.FromRecovered(v)
}
}()
for _, param := range params {
ce.pushValue(param)
}
ce.callFunction(ctx, m, compiled)
results = wasm.PopValues(f.Type.ResultNumInUint64, ce.popValue)
return
}
func (ce *callEngine) callFunction(ctx context.Context, callCtx *wasm.CallContext, f *function) {
if f.hostFn != nil {
ce.callGoFuncWithStack(ctx, callCtx, f)
} else if lsn := f.source.FunctionListener; lsn != nil {
ce.callNativeFuncWithListener(ctx, callCtx, f, lsn)
} else {
ce.callNativeFunc(ctx, callCtx, f)
}
}
func (ce *callEngine) callGoFunc(ctx context.Context, callCtx *wasm.CallContext, f *function, params []uint64) (results []uint64) {
callCtx = callCtx.WithMemory(ce.callerMemory())
if f.source.FunctionListener != nil {
ctx = f.source.FunctionListener.Before(ctx, f.source.Definition(), params)
}
frame := &callFrame{f: f}
ce.pushFrame(frame)
results = wasm.CallGoFunc(ctx, callCtx, f.source, params)
ce.popFrame()
if f.source.FunctionListener != nil {
// TODO: This doesn't get the error due to use of panic to propagate them.
f.source.FunctionListener.After(ctx, f.source.Definition(), nil, results)
}
return
}
func (ce *callEngine) callNativeFunc(ctx context.Context, callCtx *wasm.CallContext, f *function) {
frame := &callFrame{f: f}
moduleInst := f.source.Module
functions := moduleInst.Engine.(*moduleEngine).functions
var memoryInst *wasm.MemoryInstance
if f.source.IsHostFunction {
if memoryInst = ce.callerMemory(); memoryInst == nil {
// If there was no caller, someone called a host function directly.
memoryInst = callCtx.Memory().(*wasm.MemoryInstance)
}
} else {
memoryInst = moduleInst.Memory
}
globals := moduleInst.Globals
tables := moduleInst.Tables
typeIDs := f.source.Module.TypeIDs
dataInstances := f.source.Module.DataInstances
elementInstances := f.source.Module.ElementInstances
ce.pushFrame(frame)
bodyLen := uint64(len(frame.f.body))
for frame.pc < bodyLen {
op := frame.f.body[frame.pc]
// TODO: add description of each operation/case
// on, for example, how many args are used,
// how the stack is modified, etc.
switch op.kind {
case wazeroir.OperationKindUnreachable:
panic(wasmruntime.ErrRuntimeUnreachable)
case wazeroir.OperationKindBr:
frame.pc = op.us[0]
case wazeroir.OperationKindBrIf:
if ce.popValue() > 0 {
ce.drop(op.rs[0])
frame.pc = op.us[0]
} else {
ce.drop(op.rs[1])
frame.pc = op.us[1]
}
case wazeroir.OperationKindBrTable:
if v := uint64(ce.popValue()); v < uint64(len(op.us)-1) {
ce.drop(op.rs[v+1])
frame.pc = op.us[v+1]
} else {
// Default branch.
ce.drop(op.rs[0])
frame.pc = op.us[0]
}
case wazeroir.OperationKindCall:
ce.callFunction(ctx, callCtx, functions[op.us[0]])
frame.pc++
case wazeroir.OperationKindCallIndirect:
offset := ce.popValue()
table := tables[op.us[1]]
if offset >= uint64(len(table.References)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
}
rawPtr := table.References[offset]
if rawPtr == 0 {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
}
tf := functionFromUintptr(rawPtr)
if tf.source.TypeID != typeIDs[op.us[0]] {
panic(wasmruntime.ErrRuntimeIndirectCallTypeMismatch)
}
ce.callFunction(ctx, callCtx, tf)
frame.pc++
case wazeroir.OperationKindDrop:
ce.drop(op.rs[0])
frame.pc++
case wazeroir.OperationKindSelect:
c := ce.popValue()
if op.b3 { // Target is vector.
x2Hi, x2Lo := ce.popValue(), ce.popValue()
if c == 0 {
_, _ = ce.popValue(), ce.popValue() // discard the x1's lo and hi bits.
ce.pushValue(x2Lo)
ce.pushValue(x2Hi)
}
} else {
v2 := ce.popValue()
if c == 0 {
_ = ce.popValue()
ce.pushValue(v2)
}
}
frame.pc++
case wazeroir.OperationKindPick:
index := len(ce.stack) - 1 - int(op.us[0])
ce.pushValue(ce.stack[index])
if op.b3 { // V128 value target.
ce.pushValue(ce.stack[index+1])
}
frame.pc++
case wazeroir.OperationKindSwap:
if op.b3 { // V128 value target.
lowIndex := len(ce.stack) - 1 - int(op.us[0])
ce.stack[len(ce.stack)-2], ce.stack[lowIndex] = ce.stack[lowIndex], ce.stack[len(ce.stack)-2]
ce.stack[len(ce.stack)-1], ce.stack[lowIndex+1] = ce.stack[lowIndex+1], ce.stack[len(ce.stack)-1]
} else {
index := len(ce.stack) - 1 - int(op.us[0])
ce.stack[len(ce.stack)-1], ce.stack[index] = ce.stack[index], ce.stack[len(ce.stack)-1]
}
frame.pc++
case wazeroir.OperationKindGlobalGet:
g := globals[op.us[0]]
ce.pushValue(g.Val)
if g.Type.ValType == wasm.ValueTypeV128 {
ce.pushValue(g.ValHi)
}
frame.pc++
case wazeroir.OperationKindGlobalSet:
g := globals[op.us[0]]
if g.Type.ValType == wasm.ValueTypeV128 {
g.ValHi = ce.popValue()
}
g.Val = ce.popValue()
frame.pc++
case wazeroir.OperationKindLoad:
offset := ce.popMemoryOffset(op)
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32, wazeroir.UnsignedTypeF32:
if val, ok := memoryInst.ReadUint32Le(ctx, offset); !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
} else {
ce.pushValue(uint64(val))
}
case wazeroir.UnsignedTypeI64, wazeroir.UnsignedTypeF64:
if val, ok := memoryInst.ReadUint64Le(ctx, offset); !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
} else {
ce.pushValue(val)
}
}
frame.pc++
case wazeroir.OperationKindLoad8:
val, ok := memoryInst.ReadByte(ctx, ce.popMemoryOffset(op))
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
switch wazeroir.SignedInt(op.b1) {
case wazeroir.SignedInt32, wazeroir.SignedInt64:
ce.pushValue(uint64(int8(val)))
case wazeroir.SignedUint32, wazeroir.SignedUint64:
ce.pushValue(uint64(val))
}
frame.pc++
case wazeroir.OperationKindLoad16:
val, ok := memoryInst.ReadUint16Le(ctx, ce.popMemoryOffset(op))
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
switch wazeroir.SignedInt(op.b1) {
case wazeroir.SignedInt32, wazeroir.SignedInt64:
ce.pushValue(uint64(int16(val)))
case wazeroir.SignedUint32, wazeroir.SignedUint64:
ce.pushValue(uint64(val))
}
frame.pc++
case wazeroir.OperationKindLoad32:
val, ok := memoryInst.ReadUint32Le(ctx, ce.popMemoryOffset(op))
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if op.b1 == 1 { // Signed
ce.pushValue(uint64(int32(val)))
} else {
ce.pushValue(uint64(val))
}
frame.pc++
case wazeroir.OperationKindStore:
val := ce.popValue()
offset := ce.popMemoryOffset(op)
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32, wazeroir.UnsignedTypeF32:
if !memoryInst.WriteUint32Le(ctx, offset, uint32(val)) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
case wazeroir.UnsignedTypeI64, wazeroir.UnsignedTypeF64:
if !memoryInst.WriteUint64Le(ctx, offset, val) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
}
frame.pc++
case wazeroir.OperationKindStore8:
val := byte(ce.popValue())
offset := ce.popMemoryOffset(op)
if !memoryInst.WriteByte(ctx, offset, val) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
frame.pc++
case wazeroir.OperationKindStore16:
val := uint16(ce.popValue())
offset := ce.popMemoryOffset(op)
if !memoryInst.WriteUint16Le(ctx, offset, val) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
frame.pc++
case wazeroir.OperationKindStore32:
val := uint32(ce.popValue())
offset := ce.popMemoryOffset(op)
if !memoryInst.WriteUint32Le(ctx, offset, val) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
frame.pc++
case wazeroir.OperationKindMemorySize:
ce.pushValue(uint64(memoryInst.PageSize(ctx)))
frame.pc++
case wazeroir.OperationKindMemoryGrow:
n := ce.popValue()
if res, ok := memoryInst.Grow(ctx, uint32(n)); !ok {
ce.pushValue(uint64(0xffffffff)) // = -1 in signed 32-bit integer.
} else {
ce.pushValue(uint64(res))
}
frame.pc++
case wazeroir.OperationKindConstI32, wazeroir.OperationKindConstI64,
wazeroir.OperationKindConstF32, wazeroir.OperationKindConstF64:
ce.pushValue(op.us[0])
frame.pc++
case wazeroir.OperationKindEq:
var b bool
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32:
v2, v1 := ce.popValue(), ce.popValue()
b = uint32(v1) == uint32(v2)
case wazeroir.UnsignedTypeI64:
v2, v1 := ce.popValue(), ce.popValue()
b = v1 == v2
case wazeroir.UnsignedTypeF32:
v2, v1 := ce.popValue(), ce.popValue()
b = math.Float32frombits(uint32(v2)) == math.Float32frombits(uint32(v1))
case wazeroir.UnsignedTypeF64:
v2, v1 := ce.popValue(), ce.popValue()
b = math.Float64frombits(v2) == math.Float64frombits(v1)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindNe:
var b bool
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32, wazeroir.UnsignedTypeI64:
v2, v1 := ce.popValue(), ce.popValue()
b = v1 != v2
case wazeroir.UnsignedTypeF32:
v2, v1 := ce.popValue(), ce.popValue()
b = math.Float32frombits(uint32(v2)) != math.Float32frombits(uint32(v1))
case wazeroir.UnsignedTypeF64:
v2, v1 := ce.popValue(), ce.popValue()
b = math.Float64frombits(v2) != math.Float64frombits(v1)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindEqz:
if ce.popValue() == 0 {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindLt:
v2 := ce.popValue()
v1 := ce.popValue()
var b bool
switch wazeroir.SignedType(op.b1) {
case wazeroir.SignedTypeInt32:
b = int32(v1) < int32(v2)
case wazeroir.SignedTypeInt64:
b = int64(v1) < int64(v2)
case wazeroir.SignedTypeUint32, wazeroir.SignedTypeUint64:
b = v1 < v2
case wazeroir.SignedTypeFloat32:
b = math.Float32frombits(uint32(v1)) < math.Float32frombits(uint32(v2))
case wazeroir.SignedTypeFloat64:
b = math.Float64frombits(v1) < math.Float64frombits(v2)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindGt:
v2 := ce.popValue()
v1 := ce.popValue()
var b bool
switch wazeroir.SignedType(op.b1) {
case wazeroir.SignedTypeInt32:
b = int32(v1) > int32(v2)
case wazeroir.SignedTypeInt64:
b = int64(v1) > int64(v2)
case wazeroir.SignedTypeUint32, wazeroir.SignedTypeUint64:
b = v1 > v2
case wazeroir.SignedTypeFloat32:
b = math.Float32frombits(uint32(v1)) > math.Float32frombits(uint32(v2))
case wazeroir.SignedTypeFloat64:
b = math.Float64frombits(v1) > math.Float64frombits(v2)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindLe:
v2 := ce.popValue()
v1 := ce.popValue()
var b bool
switch wazeroir.SignedType(op.b1) {
case wazeroir.SignedTypeInt32:
b = int32(v1) <= int32(v2)
case wazeroir.SignedTypeInt64:
b = int64(v1) <= int64(v2)
case wazeroir.SignedTypeUint32, wazeroir.SignedTypeUint64:
b = v1 <= v2
case wazeroir.SignedTypeFloat32:
b = math.Float32frombits(uint32(v1)) <= math.Float32frombits(uint32(v2))
case wazeroir.SignedTypeFloat64:
b = math.Float64frombits(v1) <= math.Float64frombits(v2)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindGe:
v2 := ce.popValue()
v1 := ce.popValue()
var b bool
switch wazeroir.SignedType(op.b1) {
case wazeroir.SignedTypeInt32:
b = int32(v1) >= int32(v2)
case wazeroir.SignedTypeInt64:
b = int64(v1) >= int64(v2)
case wazeroir.SignedTypeUint32, wazeroir.SignedTypeUint64:
b = v1 >= v2
case wazeroir.SignedTypeFloat32:
b = math.Float32frombits(uint32(v1)) >= math.Float32frombits(uint32(v2))
case wazeroir.SignedTypeFloat64:
b = math.Float64frombits(v1) >= math.Float64frombits(v2)
}
if b {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindAdd:
v2 := ce.popValue()
v1 := ce.popValue()
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32:
v := uint32(v1) + uint32(v2)
ce.pushValue(uint64(v))
case wazeroir.UnsignedTypeI64:
ce.pushValue(v1 + v2)
case wazeroir.UnsignedTypeF32:
ce.pushValue(addFloat32bits(uint32(v1), uint32(v2)))
case wazeroir.UnsignedTypeF64:
v := math.Float64frombits(v1) + math.Float64frombits(v2)
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindSub:
v2 := ce.popValue()
v1 := ce.popValue()
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32:
ce.pushValue(uint64(uint32(v1) - uint32(v2)))
case wazeroir.UnsignedTypeI64:
ce.pushValue(v1 - v2)
case wazeroir.UnsignedTypeF32:
ce.pushValue(subFloat32bits(uint32(v1), uint32(v2)))
case wazeroir.UnsignedTypeF64:
v := math.Float64frombits(v1) - math.Float64frombits(v2)
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindMul:
v2 := ce.popValue()
v1 := ce.popValue()
switch wazeroir.UnsignedType(op.b1) {
case wazeroir.UnsignedTypeI32:
ce.pushValue(uint64(uint32(v1) * uint32(v2)))
case wazeroir.UnsignedTypeI64:
ce.pushValue(v1 * v2)
case wazeroir.UnsignedTypeF32:
ce.pushValue(mulFloat32bits(uint32(v1), uint32(v2)))
case wazeroir.UnsignedTypeF64:
v := math.Float64frombits(v2) * math.Float64frombits(v1)
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindClz:
v := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(bits.LeadingZeros32(uint32(v))))
} else {
// UnsignedInt64
ce.pushValue(uint64(bits.LeadingZeros64(v)))
}
frame.pc++
case wazeroir.OperationKindCtz:
v := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(bits.TrailingZeros32(uint32(v))))
} else {
// UnsignedInt64
ce.pushValue(uint64(bits.TrailingZeros64(v)))
}
frame.pc++
case wazeroir.OperationKindPopcnt:
v := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(bits.OnesCount32(uint32(v))))
} else {
// UnsignedInt64
ce.pushValue(uint64(bits.OnesCount64(v)))
}
frame.pc++
case wazeroir.OperationKindDiv:
// If an integer, check we won't divide by zero.
t := wazeroir.SignedType(op.b1)
v2, v1 := ce.popValue(), ce.popValue()
switch t {
case wazeroir.SignedTypeFloat32, wazeroir.SignedTypeFloat64: // not integers
default:
if v2 == 0 {
panic(wasmruntime.ErrRuntimeIntegerDivideByZero)
}
}
switch t {
case wazeroir.SignedTypeInt32:
d := int32(v2)
n := int32(v1)
if n == math.MinInt32 && d == -1 {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
ce.pushValue(uint64(uint32(n / d)))
case wazeroir.SignedTypeInt64:
d := int64(v2)
n := int64(v1)
if n == math.MinInt64 && d == -1 {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
ce.pushValue(uint64(n / d))
case wazeroir.SignedTypeUint32:
d := uint32(v2)
n := uint32(v1)
ce.pushValue(uint64(n / d))
case wazeroir.SignedTypeUint64:
d := v2
n := v1
ce.pushValue(n / d)
case wazeroir.SignedTypeFloat32:
ce.pushValue(divFloat32bits(uint32(v1), uint32(v2)))
case wazeroir.SignedTypeFloat64:
ce.pushValue(math.Float64bits(math.Float64frombits(v1) / math.Float64frombits(v2)))
}
frame.pc++
case wazeroir.OperationKindRem:
v2, v1 := ce.popValue(), ce.popValue()
if v2 == 0 {
panic(wasmruntime.ErrRuntimeIntegerDivideByZero)
}
switch wazeroir.SignedInt(op.b1) {
case wazeroir.SignedInt32:
d := int32(v2)
n := int32(v1)
ce.pushValue(uint64(uint32(n % d)))
case wazeroir.SignedInt64:
d := int64(v2)
n := int64(v1)
ce.pushValue(uint64(n % d))
case wazeroir.SignedUint32:
d := uint32(v2)
n := uint32(v1)
ce.pushValue(uint64(n % d))
case wazeroir.SignedUint64:
d := v2
n := v1
ce.pushValue(n % d)
}
frame.pc++
case wazeroir.OperationKindAnd:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(uint32(v2) & uint32(v1)))
} else {
// UnsignedInt64
ce.pushValue(uint64(v2 & v1))
}
frame.pc++
case wazeroir.OperationKindOr:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(uint32(v2) | uint32(v1)))
} else {
// UnsignedInt64
ce.pushValue(uint64(v2 | v1))
}
frame.pc++
case wazeroir.OperationKindXor:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(uint32(v2) ^ uint32(v1)))
} else {
// UnsignedInt64
ce.pushValue(uint64(v2 ^ v1))
}
frame.pc++
case wazeroir.OperationKindShl:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(uint32(v1) << (uint32(v2) % 32)))
} else {
// UnsignedInt64
ce.pushValue(v1 << (v2 % 64))
}
frame.pc++
case wazeroir.OperationKindShr:
v2 := ce.popValue()
v1 := ce.popValue()
switch wazeroir.SignedInt(op.b1) {
case wazeroir.SignedInt32:
ce.pushValue(uint64(uint32(int32(v1) >> (uint32(v2) % 32))))
case wazeroir.SignedInt64:
ce.pushValue(uint64(int64(v1) >> (v2 % 64)))
case wazeroir.SignedUint32:
ce.pushValue(uint64(uint32(v1) >> (uint32(v2) % 32)))
case wazeroir.SignedUint64:
ce.pushValue(v1 >> (v2 % 64))
}
frame.pc++
case wazeroir.OperationKindRotl:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(bits.RotateLeft32(uint32(v1), int(v2))))
} else {
// UnsignedInt64
ce.pushValue(uint64(bits.RotateLeft64(v1, int(v2))))
}
frame.pc++
case wazeroir.OperationKindRotr:
v2 := ce.popValue()
v1 := ce.popValue()
if op.b1 == 0 {
// UnsignedInt32
ce.pushValue(uint64(bits.RotateLeft32(uint32(v1), -int(v2))))
} else {
// UnsignedInt64
ce.pushValue(uint64(bits.RotateLeft64(v1, -int(v2))))
}
frame.pc++
case wazeroir.OperationKindAbs:
if op.b1 == 0 {
// Float32
const mask uint32 = 1 << 31
ce.pushValue(uint64(uint32(ce.popValue()) &^ mask))
} else {
// Float64
const mask uint64 = 1 << 63
ce.pushValue(ce.popValue() &^ mask)
}
frame.pc++
case wazeroir.OperationKindNeg:
if op.b1 == 0 {
// Float32
v := -math.Float32frombits(uint32(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := -math.Float64frombits(ce.popValue())
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindCeil:
if op.b1 == 0 {
// Float32
v := moremath.WasmCompatCeilF32(math.Float32frombits(uint32(ce.popValue())))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := moremath.WasmCompatCeilF64(math.Float64frombits(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindFloor:
if op.b1 == 0 {
// Float32
v := moremath.WasmCompatFloorF32(math.Float32frombits(uint32(ce.popValue())))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := moremath.WasmCompatFloorF64(math.Float64frombits(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindTrunc:
if op.b1 == 0 {
// Float32
v := moremath.WasmCompatTruncF32(math.Float32frombits(uint32(ce.popValue())))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := moremath.WasmCompatTruncF64(math.Float64frombits(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindNearest:
if op.b1 == 0 {
// Float32
f := math.Float32frombits(uint32(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(moremath.WasmCompatNearestF32(f))))
} else {
// Float64
f := math.Float64frombits(ce.popValue())
ce.pushValue(math.Float64bits(moremath.WasmCompatNearestF64(f)))
}
frame.pc++
case wazeroir.OperationKindSqrt:
if op.b1 == 0 {
// Float32
v := math.Sqrt(float64(math.Float32frombits(uint32(ce.popValue()))))
ce.pushValue(uint64(math.Float32bits(float32(v))))
} else {
// Float64
v := math.Sqrt(math.Float64frombits(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
frame.pc++
case wazeroir.OperationKindMin:
if op.b1 == 0 {
// Float32
ce.pushValue(WasmCompatMin32bits(uint32(ce.popValue()), uint32(ce.popValue())))
} else {
v2 := math.Float64frombits(ce.popValue())
v1 := math.Float64frombits(ce.popValue())
ce.pushValue(math.Float64bits(moremath.WasmCompatMin64(v1, v2)))
}
frame.pc++
case wazeroir.OperationKindMax:
if op.b1 == 0 {
ce.pushValue(WasmCompatMax32bits(uint32(ce.popValue()), uint32(ce.popValue())))
} else {
// Float64
v2 := math.Float64frombits(ce.popValue())
v1 := math.Float64frombits(ce.popValue())
ce.pushValue(math.Float64bits(moremath.WasmCompatMax64(v1, v2)))
}
frame.pc++
case wazeroir.OperationKindCopysign:
if op.b1 == 0 {
// Float32
v2 := uint32(ce.popValue())
v1 := uint32(ce.popValue())
const signbit = 1 << 31
ce.pushValue(uint64(v1&^signbit | v2&signbit))
} else {
// Float64
v2 := ce.popValue()
v1 := ce.popValue()
const signbit = 1 << 63
ce.pushValue(v1&^signbit | v2&signbit)
}
frame.pc++
case wazeroir.OperationKindI32WrapFromI64:
ce.pushValue(uint64(uint32(ce.popValue())))
frame.pc++
case wazeroir.OperationKindITruncFromF:
if op.b1 == 0 {
// Float32
switch wazeroir.SignedInt(op.b2) {
case wazeroir.SignedInt32:
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
v = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < math.MinInt32 || v > math.MaxInt32 {
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing sources.
if v < 0 {
v = math.MinInt32
} else {
v = math.MaxInt32
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(uint32(int32(v))))
case wazeroir.SignedInt64:
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
res := int64(v)
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
res = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < math.MinInt64 || v >= math.MaxInt64 {
// Note: math.MaxInt64 is rounded up to math.MaxInt64+1 in 64-bit float representation,
// and that's why we use '>=' not '>' to check overflow.
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing sources.
if v < 0 {
res = math.MinInt64
} else {
res = math.MaxInt64
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(res))
case wazeroir.SignedUint32:
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
v = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < 0 || v > math.MaxUint32 {
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
v = 0
} else {
v = math.MaxUint32
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(uint32(v)))
case wazeroir.SignedUint64:
v := math.Trunc(float64(math.Float32frombits(uint32(ce.popValue()))))
res := uint64(v)
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
res = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < 0 || v >= math.MaxUint64 {
// Note: math.MaxUint64 is rounded up to math.MaxUint64+1 in 64-bit float representation,
// and that's why we use '>=' not '>' to check overflow.
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
res = 0
} else {
res = math.MaxUint64
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(res)
}
} else {
// Float64
switch wazeroir.SignedInt(op.b2) {
case wazeroir.SignedInt32:
v := math.Trunc(math.Float64frombits(ce.popValue()))
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
v = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < math.MinInt32 || v > math.MaxInt32 {
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
v = math.MinInt32
} else {
v = math.MaxInt32
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(uint32(int32(v))))
case wazeroir.SignedInt64:
v := math.Trunc(math.Float64frombits(ce.popValue()))
res := int64(v)
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
res = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < math.MinInt64 || v >= math.MaxInt64 {
// Note: math.MaxInt64 is rounded up to math.MaxInt64+1 in 64-bit float representation,
// and that's why we use '>=' not '>' to check overflow.
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
res = math.MinInt64
} else {
res = math.MaxInt64
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(res))
case wazeroir.SignedUint32:
v := math.Trunc(math.Float64frombits(ce.popValue()))
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
v = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < 0 || v > math.MaxUint32 {
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
v = 0
} else {
v = math.MaxUint32
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(uint64(uint32(v)))
case wazeroir.SignedUint64:
v := math.Trunc(math.Float64frombits(ce.popValue()))
res := uint64(v)
if math.IsNaN(v) { // NaN cannot be compared with themselves, so we have to use IsNaN
if op.b3 {
// non-trapping conversion must cast nan to zero.
res = 0
} else {
panic(wasmruntime.ErrRuntimeInvalidConversionToInteger)
}
} else if v < 0 || v >= math.MaxUint64 {
// Note: math.MaxUint64 is rounded up to math.MaxUint64+1 in 64-bit float representation,
// and that's why we use '>=' not '>' to check overflow.
if op.b3 {
// non-trapping conversion must "saturate" the value for overflowing source.
if v < 0 {
res = 0
} else {
res = math.MaxUint64
}
} else {
panic(wasmruntime.ErrRuntimeIntegerOverflow)
}
}
ce.pushValue(res)
}
}
frame.pc++
case wazeroir.OperationKindFConvertFromI:
switch wazeroir.SignedInt(op.b1) {
case wazeroir.SignedInt32:
if op.b2 == 0 {
// Float32
v := float32(int32(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := float64(int32(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
case wazeroir.SignedInt64:
if op.b2 == 0 {
// Float32
v := float32(int64(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := float64(int64(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
case wazeroir.SignedUint32:
if op.b2 == 0 {
// Float32
v := float32(uint32(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := float64(uint32(ce.popValue()))
ce.pushValue(math.Float64bits(v))
}
case wazeroir.SignedUint64:
if op.b2 == 0 {
// Float32
v := float32(ce.popValue())
ce.pushValue(uint64(math.Float32bits(v)))
} else {
// Float64
v := float64(ce.popValue())
ce.pushValue(math.Float64bits(v))
}
}
frame.pc++
case wazeroir.OperationKindF32DemoteFromF64:
v := float32(math.Float64frombits(ce.popValue()))
ce.pushValue(uint64(math.Float32bits(v)))
frame.pc++
case wazeroir.OperationKindF64PromoteFromF32:
v := float64(math.Float32frombits(uint32(ce.popValue())))
ce.pushValue(math.Float64bits(v))
frame.pc++
case wazeroir.OperationKindExtend:
if op.b1 == 1 {
// Signed.
v := int64(int32(ce.popValue()))
ce.pushValue(uint64(v))
} else {
v := uint64(uint32(ce.popValue()))
ce.pushValue(v)
}
frame.pc++
case wazeroir.OperationKindSignExtend32From8:
v := uint32(int8(ce.popValue()))
ce.pushValue(uint64(v))
frame.pc++
case wazeroir.OperationKindSignExtend32From16:
v := uint32(int16(ce.popValue()))
ce.pushValue(uint64(v))
frame.pc++
case wazeroir.OperationKindSignExtend64From8:
v := int64(int8(ce.popValue()))
ce.pushValue(uint64(v))
frame.pc++
case wazeroir.OperationKindSignExtend64From16:
v := int64(int16(ce.popValue()))
ce.pushValue(uint64(v))
frame.pc++
case wazeroir.OperationKindSignExtend64From32:
v := int64(int32(ce.popValue()))
ce.pushValue(uint64(v))
frame.pc++
case wazeroir.OperationKindMemoryInit:
dataInstance := dataInstances[op.us[0]]
copySize := ce.popValue()
inDataOffset := ce.popValue()
inMemoryOffset := ce.popValue()
if inDataOffset+copySize > uint64(len(dataInstance)) ||
inMemoryOffset+copySize > uint64(len(memoryInst.Buffer)) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
} else if copySize != 0 {
copy(memoryInst.Buffer[inMemoryOffset:inMemoryOffset+copySize], dataInstance[inDataOffset:])
}
frame.pc++
case wazeroir.OperationKindDataDrop:
dataInstances[op.us[0]] = nil
frame.pc++
case wazeroir.OperationKindMemoryCopy:
memLen := uint64(len(memoryInst.Buffer))
copySize := ce.popValue()
sourceOffset := ce.popValue()
destinationOffset := ce.popValue()
if sourceOffset+copySize > memLen || destinationOffset+copySize > memLen {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
} else if copySize != 0 {
copy(memoryInst.Buffer[destinationOffset:],
memoryInst.Buffer[sourceOffset:sourceOffset+copySize])
}
frame.pc++
case wazeroir.OperationKindMemoryFill:
fillSize := ce.popValue()
value := byte(ce.popValue())
offset := ce.popValue()
if fillSize+offset > uint64(len(memoryInst.Buffer)) {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
} else if fillSize != 0 {
// Uses the copy trick for faster filling buffer.
// https://gist.github.com/taylorza/df2f89d5f9ab3ffd06865062a4cf015d
buf := memoryInst.Buffer[offset : offset+fillSize]
buf[0] = value
for i := 1; i < len(buf); i *= 2 {
copy(buf[i:], buf[:i])
}
}
frame.pc++
case wazeroir.OperationKindTableInit:
elementInstance := elementInstances[op.us[0]]
copySize := ce.popValue()
inElementOffset := ce.popValue()
inTableOffset := ce.popValue()
table := tables[op.us[1]]
if inElementOffset+copySize > uint64(len(elementInstance.References)) ||
inTableOffset+copySize > uint64(len(table.References)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
} else if copySize != 0 {
copy(table.References[inTableOffset:inTableOffset+copySize], elementInstance.References[inElementOffset:])
}
frame.pc++
case wazeroir.OperationKindElemDrop:
elementInstances[op.us[0]].References = nil
frame.pc++
case wazeroir.OperationKindTableCopy:
srcTable, dstTable := tables[op.us[0]].References, tables[op.us[1]].References
copySize := ce.popValue()
sourceOffset := ce.popValue()
destinationOffset := ce.popValue()
if sourceOffset+copySize > uint64(len(srcTable)) || destinationOffset+copySize > uint64(len(dstTable)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
} else if copySize != 0 {
copy(dstTable[destinationOffset:], srcTable[sourceOffset:sourceOffset+copySize])
}
frame.pc++
case wazeroir.OperationKindRefFunc:
ce.pushValue(uint64(uintptr(unsafe.Pointer(functions[op.us[0]]))))
frame.pc++
case wazeroir.OperationKindTableGet:
table := tables[op.us[0]]
offset := ce.popValue()
if offset >= uint64(len(table.References)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
}
ce.pushValue(uint64(table.References[offset]))
frame.pc++
case wazeroir.OperationKindTableSet:
table := tables[op.us[0]]
ref := ce.popValue()
offset := ce.popValue()
if offset >= uint64(len(table.References)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
}
table.References[offset] = uintptr(ref) // externrefs are opaque uint64.
frame.pc++
case wazeroir.OperationKindTableSize:
table := tables[op.us[0]]
ce.pushValue(uint64(len(table.References)))
frame.pc++
case wazeroir.OperationKindTableGrow:
table := tables[op.us[0]]
num, ref := ce.popValue(), ce.popValue()
ret := table.Grow(ctx, uint32(num), uintptr(ref))
ce.pushValue(uint64(ret))
frame.pc++
case wazeroir.OperationKindTableFill:
table := tables[op.us[0]]
num := ce.popValue()
ref := uintptr(ce.popValue())
offset := ce.popValue()
if num+offset > uint64(len(table.References)) {
panic(wasmruntime.ErrRuntimeInvalidTableAccess)
} else if num > 0 {
// Uses the copy trick for faster filling the region with the value.
// https://gist.github.com/taylorza/df2f89d5f9ab3ffd06865062a4cf015d
targetRegion := table.References[offset : offset+num]
targetRegion[0] = ref
for i := 1; i < len(targetRegion); i *= 2 {
copy(targetRegion[i:], targetRegion[:i])
}
}
frame.pc++
case wazeroir.OperationKindV128Const:
lo, hi := op.us[0], op.us[1]
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Add:
yHigh, yLow := ce.popValue(), ce.popValue()
xHigh, xLow := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
ce.pushValue(
uint64(uint8(xLow>>8)+uint8(yLow>>8))<<8 | uint64(uint8(xLow)+uint8(yLow)) |
uint64(uint8(xLow>>24)+uint8(yLow>>24))<<24 | uint64(uint8(xLow>>16)+uint8(yLow>>16))<<16 |
uint64(uint8(xLow>>40)+uint8(yLow>>40))<<40 | uint64(uint8(xLow>>32)+uint8(yLow>>32))<<32 |
uint64(uint8(xLow>>56)+uint8(yLow>>56))<<56 | uint64(uint8(xLow>>48)+uint8(yLow>>48))<<48,
)
ce.pushValue(
uint64(uint8(xHigh>>8)+uint8(yHigh>>8))<<8 | uint64(uint8(xHigh)+uint8(yHigh)) |
uint64(uint8(xHigh>>24)+uint8(yHigh>>24))<<24 | uint64(uint8(xHigh>>16)+uint8(yHigh>>16))<<16 |
uint64(uint8(xHigh>>40)+uint8(yHigh>>40))<<40 | uint64(uint8(xHigh>>32)+uint8(yHigh>>32))<<32 |
uint64(uint8(xHigh>>56)+uint8(yHigh>>56))<<56 | uint64(uint8(xHigh>>48)+uint8(yHigh>>48))<<48,
)
case wazeroir.ShapeI16x8:
ce.pushValue(
uint64(uint16(xLow>>16+yLow>>16))<<16 | uint64(uint16(xLow)+uint16(yLow)) |
uint64(uint16(xLow>>48+yLow>>48))<<48 | uint64(uint16(xLow>>32+yLow>>32))<<32,
)
ce.pushValue(
uint64(uint16(xHigh>>16)+uint16(yHigh>>16))<<16 | uint64(uint16(xHigh)+uint16(yHigh)) |
uint64(uint16(xHigh>>48)+uint16(yHigh>>48))<<48 | uint64(uint16(xHigh>>32)+uint16(yHigh>>32))<<32,
)
case wazeroir.ShapeI32x4:
ce.pushValue(uint64(uint32(xLow>>32)+uint32(yLow>>32))<<32 | uint64(uint32(xLow)+uint32(yLow)))
ce.pushValue(uint64(uint32(xHigh>>32)+uint32(yHigh>>32))<<32 | uint64(uint32(xHigh)+uint32(yHigh)))
case wazeroir.ShapeI64x2:
ce.pushValue(xLow + yLow)
ce.pushValue(xHigh + yHigh)
case wazeroir.ShapeF32x4:
ce.pushValue(
addFloat32bits(uint32(xLow), uint32(yLow)) | addFloat32bits(uint32(xLow>>32), uint32(yLow>>32))<<32,
)
ce.pushValue(
addFloat32bits(uint32(xHigh), uint32(yHigh)) | addFloat32bits(uint32(xHigh>>32), uint32(yHigh>>32))<<32,
)
case wazeroir.ShapeF64x2:
ce.pushValue(math.Float64bits(math.Float64frombits(xLow) + math.Float64frombits(yLow)))
ce.pushValue(math.Float64bits(math.Float64frombits(xHigh) + math.Float64frombits(yHigh)))
}
frame.pc++
case wazeroir.OperationKindV128Sub:
yHigh, yLow := ce.popValue(), ce.popValue()
xHigh, xLow := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
ce.pushValue(
uint64(uint8(xLow>>8)-uint8(yLow>>8))<<8 | uint64(uint8(xLow)-uint8(yLow)) |
uint64(uint8(xLow>>24)-uint8(yLow>>24))<<24 | uint64(uint8(xLow>>16)-uint8(yLow>>16))<<16 |
uint64(uint8(xLow>>40)-uint8(yLow>>40))<<40 | uint64(uint8(xLow>>32)-uint8(yLow>>32))<<32 |
uint64(uint8(xLow>>56)-uint8(yLow>>56))<<56 | uint64(uint8(xLow>>48)-uint8(yLow>>48))<<48,
)
ce.pushValue(
uint64(uint8(xHigh>>8)-uint8(yHigh>>8))<<8 | uint64(uint8(xHigh)-uint8(yHigh)) |
uint64(uint8(xHigh>>24)-uint8(yHigh>>24))<<24 | uint64(uint8(xHigh>>16)-uint8(yHigh>>16))<<16 |
uint64(uint8(xHigh>>40)-uint8(yHigh>>40))<<40 | uint64(uint8(xHigh>>32)-uint8(yHigh>>32))<<32 |
uint64(uint8(xHigh>>56)-uint8(yHigh>>56))<<56 | uint64(uint8(xHigh>>48)-uint8(yHigh>>48))<<48,
)
case wazeroir.ShapeI16x8:
ce.pushValue(
uint64(uint16(xLow>>16)-uint16(yLow>>16))<<16 | uint64(uint16(xLow)-uint16(yLow)) |
uint64(uint16(xLow>>48)-uint16(yLow>>48))<<48 | uint64(uint16(xLow>>32)-uint16(yLow>>32))<<32,
)
ce.pushValue(
uint64(uint16(xHigh>>16)-uint16(yHigh>>16))<<16 | uint64(uint16(xHigh)-uint16(yHigh)) |
uint64(uint16(xHigh>>48)-uint16(yHigh>>48))<<48 | uint64(uint16(xHigh>>32)-uint16(yHigh>>32))<<32,
)
case wazeroir.ShapeI32x4:
ce.pushValue(uint64(uint32(xLow>>32-yLow>>32))<<32 | uint64(uint32(xLow)-uint32(yLow)))
ce.pushValue(uint64(uint32(xHigh>>32-yHigh>>32))<<32 | uint64(uint32(xHigh)-uint32(yHigh)))
case wazeroir.ShapeI64x2:
ce.pushValue(xLow - yLow)
ce.pushValue(xHigh - yHigh)
case wazeroir.ShapeF32x4:
ce.pushValue(
subFloat32bits(uint32(xLow), uint32(yLow)) | subFloat32bits(uint32(xLow>>32), uint32(yLow>>32))<<32,
)
ce.pushValue(
subFloat32bits(uint32(xHigh), uint32(yHigh)) | subFloat32bits(uint32(xHigh>>32), uint32(yHigh>>32))<<32,
)
case wazeroir.ShapeF64x2:
ce.pushValue(math.Float64bits(math.Float64frombits(xLow) - math.Float64frombits(yLow)))
ce.pushValue(math.Float64bits(math.Float64frombits(xHigh) - math.Float64frombits(yHigh)))
}
frame.pc++
case wazeroir.OperationKindV128Load:
offset := ce.popMemoryOffset(op)
switch op.b1 {
case wazeroir.V128LoadType128:
lo, ok := memoryInst.ReadUint64Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(lo)
hi, ok := memoryInst.ReadUint64Le(ctx, offset+8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(hi)
case wazeroir.V128LoadType8x8s:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(
uint64(uint16(int8(data[3])))<<48 | uint64(uint16(int8(data[2])))<<32 | uint64(uint16(int8(data[1])))<<16 | uint64(uint16(int8(data[0]))),
)
ce.pushValue(
uint64(uint16(int8(data[7])))<<48 | uint64(uint16(int8(data[6])))<<32 | uint64(uint16(int8(data[5])))<<16 | uint64(uint16(int8(data[4]))),
)
case wazeroir.V128LoadType8x8u:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(
uint64(data[3])<<48 | uint64(data[2])<<32 | uint64(data[1])<<16 | uint64(data[0]),
)
ce.pushValue(
uint64(data[7])<<48 | uint64(data[6])<<32 | uint64(data[5])<<16 | uint64(data[4]),
)
case wazeroir.V128LoadType16x4s:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(
uint64(int16(binary.LittleEndian.Uint16(data[2:])))<<32 |
uint64(uint32(int16(binary.LittleEndian.Uint16(data)))),
)
ce.pushValue(
uint64(uint32(int16(binary.LittleEndian.Uint16(data[6:]))))<<32 |
uint64(uint32(int16(binary.LittleEndian.Uint16(data[4:])))),
)
case wazeroir.V128LoadType16x4u:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(
uint64(binary.LittleEndian.Uint16(data[2:]))<<32 | uint64(binary.LittleEndian.Uint16(data)),
)
ce.pushValue(
uint64(binary.LittleEndian.Uint16(data[6:]))<<32 | uint64(binary.LittleEndian.Uint16(data[4:])),
)
case wazeroir.V128LoadType32x2s:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(uint64(int32(binary.LittleEndian.Uint32(data))))
ce.pushValue(uint64(int32(binary.LittleEndian.Uint32(data[4:]))))
case wazeroir.V128LoadType32x2u:
data, ok := memoryInst.Read(ctx, offset, 8)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(uint64(binary.LittleEndian.Uint32(data)))
ce.pushValue(uint64(binary.LittleEndian.Uint32(data[4:])))
case wazeroir.V128LoadType8Splat:
v, ok := memoryInst.ReadByte(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
v8 := uint64(v)<<56 | uint64(v)<<48 | uint64(v)<<40 | uint64(v)<<32 |
uint64(v)<<24 | uint64(v)<<16 | uint64(v)<<8 | uint64(v)
ce.pushValue(v8)
ce.pushValue(v8)
case wazeroir.V128LoadType16Splat:
v, ok := memoryInst.ReadUint16Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
v4 := uint64(v)<<48 | uint64(v)<<32 | uint64(v)<<16 | uint64(v)
ce.pushValue(v4)
ce.pushValue(v4)
case wazeroir.V128LoadType32Splat:
v, ok := memoryInst.ReadUint32Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
vv := uint64(v)<<32 | uint64(v)
ce.pushValue(vv)
ce.pushValue(vv)
case wazeroir.V128LoadType64Splat:
lo, ok := memoryInst.ReadUint64Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(lo)
ce.pushValue(lo)
case wazeroir.V128LoadType32zero:
lo, ok := memoryInst.ReadUint32Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(uint64(lo))
ce.pushValue(0)
case wazeroir.V128LoadType64zero:
lo, ok := memoryInst.ReadUint64Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
ce.pushValue(lo)
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindV128LoadLane:
hi, lo := ce.popValue(), ce.popValue()
offset := ce.popMemoryOffset(op)
switch op.b1 {
case 8:
b, ok := memoryInst.ReadByte(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if op.b2 < 8 {
s := op.b2 << 3
lo = (lo & ^(0xff << s)) | uint64(b)<<s
} else {
s := (op.b2 - 8) << 3
hi = (hi & ^(0xff << s)) | uint64(b)<<s
}
case 16:
b, ok := memoryInst.ReadUint16Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if op.b2 < 4 {
s := op.b2 << 4
lo = (lo & ^(0xff_ff << s)) | uint64(b)<<s
} else {
s := (op.b2 - 4) << 4
hi = (hi & ^(0xff_ff << s)) | uint64(b)<<s
}
case 32:
b, ok := memoryInst.ReadUint32Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if op.b2 < 2 {
s := op.b2 << 5
lo = (lo & ^(0xff_ff_ff_ff << s)) | uint64(b)<<s
} else {
s := (op.b2 - 2) << 5
hi = (hi & ^(0xff_ff_ff_ff << s)) | uint64(b)<<s
}
case 64:
b, ok := memoryInst.ReadUint64Le(ctx, offset)
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if op.b2 == 0 {
lo = b
} else {
hi = b
}
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Store:
hi, lo := ce.popValue(), ce.popValue()
offset := ce.popMemoryOffset(op)
if ok := memoryInst.WriteUint64Le(ctx, offset, lo); !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
if ok := memoryInst.WriteUint64Le(ctx, offset+8, hi); !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
frame.pc++
case wazeroir.OperationKindV128StoreLane:
hi, lo := ce.popValue(), ce.popValue()
offset := ce.popMemoryOffset(op)
var ok bool
switch op.b1 {
case 8:
if op.b2 < 8 {
ok = memoryInst.WriteByte(ctx, offset, byte(lo>>(op.b2*8)))
} else {
ok = memoryInst.WriteByte(ctx, offset, byte(hi>>((op.b2-8)*8)))
}
case 16:
if op.b2 < 4 {
ok = memoryInst.WriteUint16Le(ctx, offset, uint16(lo>>(op.b2*16)))
} else {
ok = memoryInst.WriteUint16Le(ctx, offset, uint16(hi>>((op.b2-4)*16)))
}
case 32:
if op.b2 < 2 {
ok = memoryInst.WriteUint32Le(ctx, offset, uint32(lo>>(op.b2*32)))
} else {
ok = memoryInst.WriteUint32Le(ctx, offset, uint32(hi>>((op.b2-2)*32)))
}
case 64:
if op.b2 == 0 {
ok = memoryInst.WriteUint64Le(ctx, offset, lo)
} else {
ok = memoryInst.WriteUint64Le(ctx, offset, hi)
}
}
if !ok {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
frame.pc++
case wazeroir.OperationKindV128ReplaceLane:
v := ce.popValue()
hi, lo := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
if op.b2 < 8 {
s := op.b2 << 3
lo = (lo & ^(0xff << s)) | uint64(byte(v))<<s
} else {
s := (op.b2 - 8) << 3
hi = (hi & ^(0xff << s)) | uint64(byte(v))<<s
}
case wazeroir.ShapeI16x8:
if op.b2 < 4 {
s := op.b2 << 4
lo = (lo & ^(0xff_ff << s)) | uint64(uint16(v))<<s
} else {
s := (op.b2 - 4) << 4
hi = (hi & ^(0xff_ff << s)) | uint64(uint16(v))<<s
}
case wazeroir.ShapeI32x4, wazeroir.ShapeF32x4:
if op.b2 < 2 {
s := op.b2 << 5
lo = (lo & ^(0xff_ff_ff_ff << s)) | uint64(uint32(v))<<s
} else {
s := (op.b2 - 2) << 5
hi = (hi & ^(0xff_ff_ff_ff << s)) | uint64(uint32(v))<<s
}
case wazeroir.ShapeI64x2, wazeroir.ShapeF64x2:
if op.b2 == 0 {
lo = v
} else {
hi = v
}
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128ExtractLane:
hi, lo := ce.popValue(), ce.popValue()
var v uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
var u8 byte
if op.b2 < 8 {
u8 = byte(lo >> (op.b2 * 8))
} else {
u8 = byte(hi >> ((op.b2 - 8) * 8))
}
if op.b3 {
// sign-extend.
v = uint64(uint32(int8(u8)))
} else {
v = uint64(u8)
}
case wazeroir.ShapeI16x8:
var u16 uint16
if op.b2 < 4 {
u16 = uint16(lo >> (op.b2 * 16))
} else {
u16 = uint16(hi >> ((op.b2 - 4) * 16))
}
if op.b3 {
// sign-extend.
v = uint64(uint32(int16(u16)))
} else {
v = uint64(u16)
}
case wazeroir.ShapeI32x4, wazeroir.ShapeF32x4:
if op.b2 < 2 {
v = uint64(uint32(lo >> (op.b2 * 32)))
} else {
v = uint64(uint32(hi >> ((op.b2 - 2) * 32)))
}
case wazeroir.ShapeI64x2, wazeroir.ShapeF64x2:
if op.b2 == 0 {
v = lo
} else {
v = hi
}
}
ce.pushValue(v)
frame.pc++
case wazeroir.OperationKindV128Splat:
v := ce.popValue()
var hi, lo uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
v8 := uint64(byte(v))<<56 | uint64(byte(v))<<48 | uint64(byte(v))<<40 | uint64(byte(v))<<32 |
uint64(byte(v))<<24 | uint64(byte(v))<<16 | uint64(byte(v))<<8 | uint64(byte(v))
hi, lo = v8, v8
case wazeroir.ShapeI16x8:
v4 := uint64(uint16(v))<<48 | uint64(uint16(v))<<32 | uint64(uint16(v))<<16 | uint64(uint16(v))
hi, lo = v4, v4
case wazeroir.ShapeI32x4, wazeroir.ShapeF32x4:
v2 := uint64(uint32(v))<<32 | uint64(uint32(v))
lo, hi = v2, v2
case wazeroir.ShapeI64x2, wazeroir.ShapeF64x2:
lo, hi = v, v
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Swizzle:
idxHi, idxLo := ce.popValue(), ce.popValue()
baseHi, baseLo := ce.popValue(), ce.popValue()
var newVal [16]byte
for i := 0; i < 16; i++ {
var id byte
if i < 8 {
id = byte(idxLo >> (i * 8))
} else {
id = byte(idxHi >> ((i - 8) * 8))
}
if id < 8 {
newVal[i] = byte(baseLo >> (id * 8))
} else if id < 16 {
newVal[i] = byte(baseHi >> ((id - 8) * 8))
}
}
ce.pushValue(binary.LittleEndian.Uint64(newVal[:8]))
ce.pushValue(binary.LittleEndian.Uint64(newVal[8:]))
frame.pc++
case wazeroir.OperationKindV128Shuffle:
xHi, xLo, yHi, yLo := ce.popValue(), ce.popValue(), ce.popValue(), ce.popValue()
var newVal [16]byte
for i, l := range op.us {
if l < 8 {
newVal[i] = byte(yLo >> (l * 8))
} else if l < 16 {
newVal[i] = byte(yHi >> ((l - 8) * 8))
} else if l < 24 {
newVal[i] = byte(xLo >> ((l - 16) * 8))
} else if l < 32 {
newVal[i] = byte(xHi >> ((l - 24) * 8))
}
}
ce.pushValue(binary.LittleEndian.Uint64(newVal[:8]))
ce.pushValue(binary.LittleEndian.Uint64(newVal[8:]))
frame.pc++
case wazeroir.OperationKindV128AnyTrue:
hi, lo := ce.popValue(), ce.popValue()
if hi != 0 || lo != 0 {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindV128AllTrue:
hi, lo := ce.popValue(), ce.popValue()
var ret bool
switch op.b1 {
case wazeroir.ShapeI8x16:
ret = (uint8(lo) != 0) && (uint8(lo>>8) != 0) && (uint8(lo>>16) != 0) && (uint8(lo>>24) != 0) &&
(uint8(lo>>32) != 0) && (uint8(lo>>40) != 0) && (uint8(lo>>48) != 0) && (uint8(lo>>56) != 0) &&
(uint8(hi) != 0) && (uint8(hi>>8) != 0) && (uint8(hi>>16) != 0) && (uint8(hi>>24) != 0) &&
(uint8(hi>>32) != 0) && (uint8(hi>>40) != 0) && (uint8(hi>>48) != 0) && (uint8(hi>>56) != 0)
case wazeroir.ShapeI16x8:
ret = (uint16(lo) != 0) && (uint16(lo>>16) != 0) && (uint16(lo>>32) != 0) && (uint16(lo>>48) != 0) &&
(uint16(hi) != 0) && (uint16(hi>>16) != 0) && (uint16(hi>>32) != 0) && (uint16(hi>>48) != 0)
case wazeroir.ShapeI32x4:
ret = (uint32(lo) != 0) && (uint32(lo>>32) != 0) &&
(uint32(hi) != 0) && (uint32(hi>>32) != 0)
case wazeroir.ShapeI64x2:
ret = (lo != 0) &&
(hi != 0)
}
if ret {
ce.pushValue(1)
} else {
ce.pushValue(0)
}
frame.pc++
case wazeroir.OperationKindV128BitMask:
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#bitmask-extraction
hi, lo := ce.popValue(), ce.popValue()
var res uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 8; i++ {
if int8(lo>>(i*8)) < 0 {
res |= 1 << i
}
}
for i := 0; i < 8; i++ {
if int8(hi>>(i*8)) < 0 {
res |= 1 << (i + 8)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 4; i++ {
if int16(lo>>(i*16)) < 0 {
res |= 1 << i
}
}
for i := 0; i < 4; i++ {
if int16(hi>>(i*16)) < 0 {
res |= 1 << (i + 4)
}
}
case wazeroir.ShapeI32x4:
for i := 0; i < 2; i++ {
if int32(lo>>(i*32)) < 0 {
res |= 1 << i
}
}
for i := 0; i < 2; i++ {
if int32(hi>>(i*32)) < 0 {
res |= 1 << (i + 2)
}
}
case wazeroir.ShapeI64x2:
if int64(lo) < 0 {
res |= 0b01
}
if int(hi) < 0 {
res |= 0b10
}
}
ce.pushValue(res)
frame.pc++
case wazeroir.OperationKindV128And:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
ce.pushValue(x1Lo & x2Lo)
ce.pushValue(x1Hi & x2Hi)
frame.pc++
case wazeroir.OperationKindV128Not:
hi, lo := ce.popValue(), ce.popValue()
ce.pushValue(^lo)
ce.pushValue(^hi)
frame.pc++
case wazeroir.OperationKindV128Or:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
ce.pushValue(x1Lo | x2Lo)
ce.pushValue(x1Hi | x2Hi)
frame.pc++
case wazeroir.OperationKindV128Xor:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
ce.pushValue(x1Lo ^ x2Lo)
ce.pushValue(x1Hi ^ x2Hi)
frame.pc++
case wazeroir.OperationKindV128Bitselect:
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#bitwise-select
cHi, cLo := ce.popValue(), ce.popValue()
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
// v128.or(v128.and(v1, c), v128.and(v2, v128.not(c)))
ce.pushValue((x1Lo & cLo) | (x2Lo & (^cLo)))
ce.pushValue((x1Hi & cHi) | (x2Hi & (^cHi)))
frame.pc++
case wazeroir.OperationKindV128AndNot:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
ce.pushValue(x1Lo & (^x2Lo))
ce.pushValue(x1Hi & (^x2Hi))
frame.pc++
case wazeroir.OperationKindV128Shl:
s := ce.popValue()
hi, lo := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
s = s % 8
lo = uint64(uint8(lo<<s)) |
uint64(uint8((lo>>8)<<s))<<8 |
uint64(uint8((lo>>16)<<s))<<16 |
uint64(uint8((lo>>24)<<s))<<24 |
uint64(uint8((lo>>32)<<s))<<32 |
uint64(uint8((lo>>40)<<s))<<40 |
uint64(uint8((lo>>48)<<s))<<48 |
uint64(uint8((lo>>56)<<s))<<56
hi = uint64(uint8(hi<<s)) |
uint64(uint8((hi>>8)<<s))<<8 |
uint64(uint8((hi>>16)<<s))<<16 |
uint64(uint8((hi>>24)<<s))<<24 |
uint64(uint8((hi>>32)<<s))<<32 |
uint64(uint8((hi>>40)<<s))<<40 |
uint64(uint8((hi>>48)<<s))<<48 |
uint64(uint8((hi>>56)<<s))<<56
case wazeroir.ShapeI16x8:
s = s % 16
lo = uint64(uint16(lo<<s)) |
uint64(uint16((lo>>16)<<s))<<16 |
uint64(uint16((lo>>32)<<s))<<32 |
uint64(uint16((lo>>48)<<s))<<48
hi = uint64(uint16(hi<<s)) |
uint64(uint16((hi>>16)<<s))<<16 |
uint64(uint16((hi>>32)<<s))<<32 |
uint64(uint16((hi>>48)<<s))<<48
case wazeroir.ShapeI32x4:
s = s % 32
lo = uint64(uint32(lo<<s)) | uint64(uint32((lo>>32)<<s))<<32
hi = uint64(uint32(hi<<s)) | uint64(uint32((hi>>32)<<s))<<32
case wazeroir.ShapeI64x2:
s = s % 64
lo = lo << s
hi = hi << s
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Shr:
s := ce.popValue()
hi, lo := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
s = s % 8
if op.b3 { // signed
lo = uint64(uint8(int8(lo)>>s)) |
uint64(uint8(int8(lo>>8)>>s))<<8 |
uint64(uint8(int8(lo>>16)>>s))<<16 |
uint64(uint8(int8(lo>>24)>>s))<<24 |
uint64(uint8(int8(lo>>32)>>s))<<32 |
uint64(uint8(int8(lo>>40)>>s))<<40 |
uint64(uint8(int8(lo>>48)>>s))<<48 |
uint64(uint8(int8(lo>>56)>>s))<<56
hi = uint64(uint8(int8(hi)>>s)) |
uint64(uint8(int8(hi>>8)>>s))<<8 |
uint64(uint8(int8(hi>>16)>>s))<<16 |
uint64(uint8(int8(hi>>24)>>s))<<24 |
uint64(uint8(int8(hi>>32)>>s))<<32 |
uint64(uint8(int8(hi>>40)>>s))<<40 |
uint64(uint8(int8(hi>>48)>>s))<<48 |
uint64(uint8(int8(hi>>56)>>s))<<56
} else {
lo = uint64(uint8(lo)>>s) |
uint64(uint8(lo>>8)>>s)<<8 |
uint64(uint8(lo>>16)>>s)<<16 |
uint64(uint8(lo>>24)>>s)<<24 |
uint64(uint8(lo>>32)>>s)<<32 |
uint64(uint8(lo>>40)>>s)<<40 |
uint64(uint8(lo>>48)>>s)<<48 |
uint64(uint8(lo>>56)>>s)<<56
hi = uint64(uint8(hi)>>s) |
uint64(uint8(hi>>8)>>s)<<8 |
uint64(uint8(hi>>16)>>s)<<16 |
uint64(uint8(hi>>24)>>s)<<24 |
uint64(uint8(hi>>32)>>s)<<32 |
uint64(uint8(hi>>40)>>s)<<40 |
uint64(uint8(hi>>48)>>s)<<48 |
uint64(uint8(hi>>56)>>s)<<56
}
case wazeroir.ShapeI16x8:
s = s % 16
if op.b3 { // signed
lo = uint64(uint16(int16(lo)>>s)) |
uint64(uint16(int16(lo>>16)>>s))<<16 |
uint64(uint16(int16(lo>>32)>>s))<<32 |
uint64(uint16(int16(lo>>48)>>s))<<48
hi = uint64(uint16(int16(hi)>>s)) |
uint64(uint16(int16(hi>>16)>>s))<<16 |
uint64(uint16(int16(hi>>32)>>s))<<32 |
uint64(uint16(int16(hi>>48)>>s))<<48
} else {
lo = uint64(uint16(lo)>>s) |
uint64(uint16(lo>>16)>>s)<<16 |
uint64(uint16(lo>>32)>>s)<<32 |
uint64(uint16(lo>>48)>>s)<<48
hi = uint64(uint16(hi)>>s) |
uint64(uint16(hi>>16)>>s)<<16 |
uint64(uint16(hi>>32)>>s)<<32 |
uint64(uint16(hi>>48)>>s)<<48
}
case wazeroir.ShapeI32x4:
s = s % 32
if op.b3 {
lo = uint64(uint32(int32(lo)>>s)) | uint64(uint32(int32(lo>>32)>>s))<<32
hi = uint64(uint32(int32(hi)>>s)) | uint64(uint32(int32(hi>>32)>>s))<<32
} else {
lo = uint64(uint32(lo)>>s) | uint64(uint32(lo>>32)>>s)<<32
hi = uint64(uint32(hi)>>s) | uint64(uint32(hi>>32)>>s)<<32
}
case wazeroir.ShapeI64x2:
s = s % 64
if op.b3 { // signed
lo = uint64(int64(lo) >> s)
hi = uint64(int64(hi) >> s)
} else {
lo = lo >> s
hi = hi >> s
}
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Cmp:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
var result []bool
switch op.b1 {
case wazeroir.V128CmpTypeI8x16Eq:
result = []bool{
byte(x1Lo>>0) == byte(x2Lo>>0), byte(x1Lo>>8) == byte(x2Lo>>8),
byte(x1Lo>>16) == byte(x2Lo>>16), byte(x1Lo>>24) == byte(x2Lo>>24),
byte(x1Lo>>32) == byte(x2Lo>>32), byte(x1Lo>>40) == byte(x2Lo>>40),
byte(x1Lo>>48) == byte(x2Lo>>48), byte(x1Lo>>56) == byte(x2Lo>>56),
byte(x1Hi>>0) == byte(x2Hi>>0), byte(x1Hi>>8) == byte(x2Hi>>8),
byte(x1Hi>>16) == byte(x2Hi>>16), byte(x1Hi>>24) == byte(x2Hi>>24),
byte(x1Hi>>32) == byte(x2Hi>>32), byte(x1Hi>>40) == byte(x2Hi>>40),
byte(x1Hi>>48) == byte(x2Hi>>48), byte(x1Hi>>56) == byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16Ne:
result = []bool{
byte(x1Lo>>0) != byte(x2Lo>>0), byte(x1Lo>>8) != byte(x2Lo>>8),
byte(x1Lo>>16) != byte(x2Lo>>16), byte(x1Lo>>24) != byte(x2Lo>>24),
byte(x1Lo>>32) != byte(x2Lo>>32), byte(x1Lo>>40) != byte(x2Lo>>40),
byte(x1Lo>>48) != byte(x2Lo>>48), byte(x1Lo>>56) != byte(x2Lo>>56),
byte(x1Hi>>0) != byte(x2Hi>>0), byte(x1Hi>>8) != byte(x2Hi>>8),
byte(x1Hi>>16) != byte(x2Hi>>16), byte(x1Hi>>24) != byte(x2Hi>>24),
byte(x1Hi>>32) != byte(x2Hi>>32), byte(x1Hi>>40) != byte(x2Hi>>40),
byte(x1Hi>>48) != byte(x2Hi>>48), byte(x1Hi>>56) != byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16LtS:
result = []bool{
int8(x1Lo>>0) < int8(x2Lo>>0), int8(x1Lo>>8) < int8(x2Lo>>8),
int8(x1Lo>>16) < int8(x2Lo>>16), int8(x1Lo>>24) < int8(x2Lo>>24),
int8(x1Lo>>32) < int8(x2Lo>>32), int8(x1Lo>>40) < int8(x2Lo>>40),
int8(x1Lo>>48) < int8(x2Lo>>48), int8(x1Lo>>56) < int8(x2Lo>>56),
int8(x1Hi>>0) < int8(x2Hi>>0), int8(x1Hi>>8) < int8(x2Hi>>8),
int8(x1Hi>>16) < int8(x2Hi>>16), int8(x1Hi>>24) < int8(x2Hi>>24),
int8(x1Hi>>32) < int8(x2Hi>>32), int8(x1Hi>>40) < int8(x2Hi>>40),
int8(x1Hi>>48) < int8(x2Hi>>48), int8(x1Hi>>56) < int8(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16LtU:
result = []bool{
byte(x1Lo>>0) < byte(x2Lo>>0), byte(x1Lo>>8) < byte(x2Lo>>8),
byte(x1Lo>>16) < byte(x2Lo>>16), byte(x1Lo>>24) < byte(x2Lo>>24),
byte(x1Lo>>32) < byte(x2Lo>>32), byte(x1Lo>>40) < byte(x2Lo>>40),
byte(x1Lo>>48) < byte(x2Lo>>48), byte(x1Lo>>56) < byte(x2Lo>>56),
byte(x1Hi>>0) < byte(x2Hi>>0), byte(x1Hi>>8) < byte(x2Hi>>8),
byte(x1Hi>>16) < byte(x2Hi>>16), byte(x1Hi>>24) < byte(x2Hi>>24),
byte(x1Hi>>32) < byte(x2Hi>>32), byte(x1Hi>>40) < byte(x2Hi>>40),
byte(x1Hi>>48) < byte(x2Hi>>48), byte(x1Hi>>56) < byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16GtS:
result = []bool{
int8(x1Lo>>0) > int8(x2Lo>>0), int8(x1Lo>>8) > int8(x2Lo>>8),
int8(x1Lo>>16) > int8(x2Lo>>16), int8(x1Lo>>24) > int8(x2Lo>>24),
int8(x1Lo>>32) > int8(x2Lo>>32), int8(x1Lo>>40) > int8(x2Lo>>40),
int8(x1Lo>>48) > int8(x2Lo>>48), int8(x1Lo>>56) > int8(x2Lo>>56),
int8(x1Hi>>0) > int8(x2Hi>>0), int8(x1Hi>>8) > int8(x2Hi>>8),
int8(x1Hi>>16) > int8(x2Hi>>16), int8(x1Hi>>24) > int8(x2Hi>>24),
int8(x1Hi>>32) > int8(x2Hi>>32), int8(x1Hi>>40) > int8(x2Hi>>40),
int8(x1Hi>>48) > int8(x2Hi>>48), int8(x1Hi>>56) > int8(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16GtU:
result = []bool{
byte(x1Lo>>0) > byte(x2Lo>>0), byte(x1Lo>>8) > byte(x2Lo>>8),
byte(x1Lo>>16) > byte(x2Lo>>16), byte(x1Lo>>24) > byte(x2Lo>>24),
byte(x1Lo>>32) > byte(x2Lo>>32), byte(x1Lo>>40) > byte(x2Lo>>40),
byte(x1Lo>>48) > byte(x2Lo>>48), byte(x1Lo>>56) > byte(x2Lo>>56),
byte(x1Hi>>0) > byte(x2Hi>>0), byte(x1Hi>>8) > byte(x2Hi>>8),
byte(x1Hi>>16) > byte(x2Hi>>16), byte(x1Hi>>24) > byte(x2Hi>>24),
byte(x1Hi>>32) > byte(x2Hi>>32), byte(x1Hi>>40) > byte(x2Hi>>40),
byte(x1Hi>>48) > byte(x2Hi>>48), byte(x1Hi>>56) > byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16LeS:
result = []bool{
int8(x1Lo>>0) <= int8(x2Lo>>0), int8(x1Lo>>8) <= int8(x2Lo>>8),
int8(x1Lo>>16) <= int8(x2Lo>>16), int8(x1Lo>>24) <= int8(x2Lo>>24),
int8(x1Lo>>32) <= int8(x2Lo>>32), int8(x1Lo>>40) <= int8(x2Lo>>40),
int8(x1Lo>>48) <= int8(x2Lo>>48), int8(x1Lo>>56) <= int8(x2Lo>>56),
int8(x1Hi>>0) <= int8(x2Hi>>0), int8(x1Hi>>8) <= int8(x2Hi>>8),
int8(x1Hi>>16) <= int8(x2Hi>>16), int8(x1Hi>>24) <= int8(x2Hi>>24),
int8(x1Hi>>32) <= int8(x2Hi>>32), int8(x1Hi>>40) <= int8(x2Hi>>40),
int8(x1Hi>>48) <= int8(x2Hi>>48), int8(x1Hi>>56) <= int8(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16LeU:
result = []bool{
byte(x1Lo>>0) <= byte(x2Lo>>0), byte(x1Lo>>8) <= byte(x2Lo>>8),
byte(x1Lo>>16) <= byte(x2Lo>>16), byte(x1Lo>>24) <= byte(x2Lo>>24),
byte(x1Lo>>32) <= byte(x2Lo>>32), byte(x1Lo>>40) <= byte(x2Lo>>40),
byte(x1Lo>>48) <= byte(x2Lo>>48), byte(x1Lo>>56) <= byte(x2Lo>>56),
byte(x1Hi>>0) <= byte(x2Hi>>0), byte(x1Hi>>8) <= byte(x2Hi>>8),
byte(x1Hi>>16) <= byte(x2Hi>>16), byte(x1Hi>>24) <= byte(x2Hi>>24),
byte(x1Hi>>32) <= byte(x2Hi>>32), byte(x1Hi>>40) <= byte(x2Hi>>40),
byte(x1Hi>>48) <= byte(x2Hi>>48), byte(x1Hi>>56) <= byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16GeS:
result = []bool{
int8(x1Lo>>0) >= int8(x2Lo>>0), int8(x1Lo>>8) >= int8(x2Lo>>8),
int8(x1Lo>>16) >= int8(x2Lo>>16), int8(x1Lo>>24) >= int8(x2Lo>>24),
int8(x1Lo>>32) >= int8(x2Lo>>32), int8(x1Lo>>40) >= int8(x2Lo>>40),
int8(x1Lo>>48) >= int8(x2Lo>>48), int8(x1Lo>>56) >= int8(x2Lo>>56),
int8(x1Hi>>0) >= int8(x2Hi>>0), int8(x1Hi>>8) >= int8(x2Hi>>8),
int8(x1Hi>>16) >= int8(x2Hi>>16), int8(x1Hi>>24) >= int8(x2Hi>>24),
int8(x1Hi>>32) >= int8(x2Hi>>32), int8(x1Hi>>40) >= int8(x2Hi>>40),
int8(x1Hi>>48) >= int8(x2Hi>>48), int8(x1Hi>>56) >= int8(x2Hi>>56),
}
case wazeroir.V128CmpTypeI8x16GeU:
result = []bool{
byte(x1Lo>>0) >= byte(x2Lo>>0), byte(x1Lo>>8) >= byte(x2Lo>>8),
byte(x1Lo>>16) >= byte(x2Lo>>16), byte(x1Lo>>24) >= byte(x2Lo>>24),
byte(x1Lo>>32) >= byte(x2Lo>>32), byte(x1Lo>>40) >= byte(x2Lo>>40),
byte(x1Lo>>48) >= byte(x2Lo>>48), byte(x1Lo>>56) >= byte(x2Lo>>56),
byte(x1Hi>>0) >= byte(x2Hi>>0), byte(x1Hi>>8) >= byte(x2Hi>>8),
byte(x1Hi>>16) >= byte(x2Hi>>16), byte(x1Hi>>24) >= byte(x2Hi>>24),
byte(x1Hi>>32) >= byte(x2Hi>>32), byte(x1Hi>>40) >= byte(x2Hi>>40),
byte(x1Hi>>48) >= byte(x2Hi>>48), byte(x1Hi>>56) >= byte(x2Hi>>56),
}
case wazeroir.V128CmpTypeI16x8Eq:
result = []bool{
uint16(x1Lo>>0) == uint16(x2Lo>>0), uint16(x1Lo>>16) == uint16(x2Lo>>16),
uint16(x1Lo>>32) == uint16(x2Lo>>32), uint16(x1Lo>>48) == uint16(x2Lo>>48),
uint16(x1Hi>>0) == uint16(x2Hi>>0), uint16(x1Hi>>16) == uint16(x2Hi>>16),
uint16(x1Hi>>32) == uint16(x2Hi>>32), uint16(x1Hi>>48) == uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8Ne:
result = []bool{
uint16(x1Lo>>0) != uint16(x2Lo>>0), uint16(x1Lo>>16) != uint16(x2Lo>>16),
uint16(x1Lo>>32) != uint16(x2Lo>>32), uint16(x1Lo>>48) != uint16(x2Lo>>48),
uint16(x1Hi>>0) != uint16(x2Hi>>0), uint16(x1Hi>>16) != uint16(x2Hi>>16),
uint16(x1Hi>>32) != uint16(x2Hi>>32), uint16(x1Hi>>48) != uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8LtS:
result = []bool{
int16(x1Lo>>0) < int16(x2Lo>>0), int16(x1Lo>>16) < int16(x2Lo>>16),
int16(x1Lo>>32) < int16(x2Lo>>32), int16(x1Lo>>48) < int16(x2Lo>>48),
int16(x1Hi>>0) < int16(x2Hi>>0), int16(x1Hi>>16) < int16(x2Hi>>16),
int16(x1Hi>>32) < int16(x2Hi>>32), int16(x1Hi>>48) < int16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8LtU:
result = []bool{
uint16(x1Lo>>0) < uint16(x2Lo>>0), uint16(x1Lo>>16) < uint16(x2Lo>>16),
uint16(x1Lo>>32) < uint16(x2Lo>>32), uint16(x1Lo>>48) < uint16(x2Lo>>48),
uint16(x1Hi>>0) < uint16(x2Hi>>0), uint16(x1Hi>>16) < uint16(x2Hi>>16),
uint16(x1Hi>>32) < uint16(x2Hi>>32), uint16(x1Hi>>48) < uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8GtS:
result = []bool{
int16(x1Lo>>0) > int16(x2Lo>>0), int16(x1Lo>>16) > int16(x2Lo>>16),
int16(x1Lo>>32) > int16(x2Lo>>32), int16(x1Lo>>48) > int16(x2Lo>>48),
int16(x1Hi>>0) > int16(x2Hi>>0), int16(x1Hi>>16) > int16(x2Hi>>16),
int16(x1Hi>>32) > int16(x2Hi>>32), int16(x1Hi>>48) > int16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8GtU:
result = []bool{
uint16(x1Lo>>0) > uint16(x2Lo>>0), uint16(x1Lo>>16) > uint16(x2Lo>>16),
uint16(x1Lo>>32) > uint16(x2Lo>>32), uint16(x1Lo>>48) > uint16(x2Lo>>48),
uint16(x1Hi>>0) > uint16(x2Hi>>0), uint16(x1Hi>>16) > uint16(x2Hi>>16),
uint16(x1Hi>>32) > uint16(x2Hi>>32), uint16(x1Hi>>48) > uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8LeS:
result = []bool{
int16(x1Lo>>0) <= int16(x2Lo>>0), int16(x1Lo>>16) <= int16(x2Lo>>16),
int16(x1Lo>>32) <= int16(x2Lo>>32), int16(x1Lo>>48) <= int16(x2Lo>>48),
int16(x1Hi>>0) <= int16(x2Hi>>0), int16(x1Hi>>16) <= int16(x2Hi>>16),
int16(x1Hi>>32) <= int16(x2Hi>>32), int16(x1Hi>>48) <= int16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8LeU:
result = []bool{
uint16(x1Lo>>0) <= uint16(x2Lo>>0), uint16(x1Lo>>16) <= uint16(x2Lo>>16),
uint16(x1Lo>>32) <= uint16(x2Lo>>32), uint16(x1Lo>>48) <= uint16(x2Lo>>48),
uint16(x1Hi>>0) <= uint16(x2Hi>>0), uint16(x1Hi>>16) <= uint16(x2Hi>>16),
uint16(x1Hi>>32) <= uint16(x2Hi>>32), uint16(x1Hi>>48) <= uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8GeS:
result = []bool{
int16(x1Lo>>0) >= int16(x2Lo>>0), int16(x1Lo>>16) >= int16(x2Lo>>16),
int16(x1Lo>>32) >= int16(x2Lo>>32), int16(x1Lo>>48) >= int16(x2Lo>>48),
int16(x1Hi>>0) >= int16(x2Hi>>0), int16(x1Hi>>16) >= int16(x2Hi>>16),
int16(x1Hi>>32) >= int16(x2Hi>>32), int16(x1Hi>>48) >= int16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI16x8GeU:
result = []bool{
uint16(x1Lo>>0) >= uint16(x2Lo>>0), uint16(x1Lo>>16) >= uint16(x2Lo>>16),
uint16(x1Lo>>32) >= uint16(x2Lo>>32), uint16(x1Lo>>48) >= uint16(x2Lo>>48),
uint16(x1Hi>>0) >= uint16(x2Hi>>0), uint16(x1Hi>>16) >= uint16(x2Hi>>16),
uint16(x1Hi>>32) >= uint16(x2Hi>>32), uint16(x1Hi>>48) >= uint16(x2Hi>>48),
}
case wazeroir.V128CmpTypeI32x4Eq:
result = []bool{
uint32(x1Lo>>0) == uint32(x2Lo>>0), uint32(x1Lo>>32) == uint32(x2Lo>>32),
uint32(x1Hi>>0) == uint32(x2Hi>>0), uint32(x1Hi>>32) == uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4Ne:
result = []bool{
uint32(x1Lo>>0) != uint32(x2Lo>>0), uint32(x1Lo>>32) != uint32(x2Lo>>32),
uint32(x1Hi>>0) != uint32(x2Hi>>0), uint32(x1Hi>>32) != uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4LtS:
result = []bool{
int32(x1Lo>>0) < int32(x2Lo>>0), int32(x1Lo>>32) < int32(x2Lo>>32),
int32(x1Hi>>0) < int32(x2Hi>>0), int32(x1Hi>>32) < int32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4LtU:
result = []bool{
uint32(x1Lo>>0) < uint32(x2Lo>>0), uint32(x1Lo>>32) < uint32(x2Lo>>32),
uint32(x1Hi>>0) < uint32(x2Hi>>0), uint32(x1Hi>>32) < uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4GtS:
result = []bool{
int32(x1Lo>>0) > int32(x2Lo>>0), int32(x1Lo>>32) > int32(x2Lo>>32),
int32(x1Hi>>0) > int32(x2Hi>>0), int32(x1Hi>>32) > int32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4GtU:
result = []bool{
uint32(x1Lo>>0) > uint32(x2Lo>>0), uint32(x1Lo>>32) > uint32(x2Lo>>32),
uint32(x1Hi>>0) > uint32(x2Hi>>0), uint32(x1Hi>>32) > uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4LeS:
result = []bool{
int32(x1Lo>>0) <= int32(x2Lo>>0), int32(x1Lo>>32) <= int32(x2Lo>>32),
int32(x1Hi>>0) <= int32(x2Hi>>0), int32(x1Hi>>32) <= int32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4LeU:
result = []bool{
uint32(x1Lo>>0) <= uint32(x2Lo>>0), uint32(x1Lo>>32) <= uint32(x2Lo>>32),
uint32(x1Hi>>0) <= uint32(x2Hi>>0), uint32(x1Hi>>32) <= uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4GeS:
result = []bool{
int32(x1Lo>>0) >= int32(x2Lo>>0), int32(x1Lo>>32) >= int32(x2Lo>>32),
int32(x1Hi>>0) >= int32(x2Hi>>0), int32(x1Hi>>32) >= int32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI32x4GeU:
result = []bool{
uint32(x1Lo>>0) >= uint32(x2Lo>>0), uint32(x1Lo>>32) >= uint32(x2Lo>>32),
uint32(x1Hi>>0) >= uint32(x2Hi>>0), uint32(x1Hi>>32) >= uint32(x2Hi>>32),
}
case wazeroir.V128CmpTypeI64x2Eq:
result = []bool{x1Lo == x2Lo, x1Hi == x2Hi}
case wazeroir.V128CmpTypeI64x2Ne:
result = []bool{x1Lo != x2Lo, x1Hi != x2Hi}
case wazeroir.V128CmpTypeI64x2LtS:
result = []bool{int64(x1Lo) < int64(x2Lo), int64(x1Hi) < int64(x2Hi)}
case wazeroir.V128CmpTypeI64x2GtS:
result = []bool{int64(x1Lo) > int64(x2Lo), int64(x1Hi) > int64(x2Hi)}
case wazeroir.V128CmpTypeI64x2LeS:
result = []bool{int64(x1Lo) <= int64(x2Lo), int64(x1Hi) <= int64(x2Hi)}
case wazeroir.V128CmpTypeI64x2GeS:
result = []bool{int64(x1Lo) >= int64(x2Lo), int64(x1Hi) >= int64(x2Hi)}
case wazeroir.V128CmpTypeF32x4Eq:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) == math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) == math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) == math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) == math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF32x4Ne:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) != math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) != math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) != math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) != math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF32x4Lt:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) < math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) < math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) < math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) < math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF32x4Gt:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) > math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) > math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) > math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) > math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF32x4Le:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) <= math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) <= math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) <= math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) <= math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF32x4Ge:
result = []bool{
math.Float32frombits(uint32(x1Lo>>0)) >= math.Float32frombits(uint32(x2Lo>>0)),
math.Float32frombits(uint32(x1Lo>>32)) >= math.Float32frombits(uint32(x2Lo>>32)),
math.Float32frombits(uint32(x1Hi>>0)) >= math.Float32frombits(uint32(x2Hi>>0)),
math.Float32frombits(uint32(x1Hi>>32)) >= math.Float32frombits(uint32(x2Hi>>32)),
}
case wazeroir.V128CmpTypeF64x2Eq:
result = []bool{
math.Float64frombits(x1Lo) == math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) == math.Float64frombits(x2Hi),
}
case wazeroir.V128CmpTypeF64x2Ne:
result = []bool{
math.Float64frombits(x1Lo) != math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) != math.Float64frombits(x2Hi),
}
case wazeroir.V128CmpTypeF64x2Lt:
result = []bool{
math.Float64frombits(x1Lo) < math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) < math.Float64frombits(x2Hi),
}
case wazeroir.V128CmpTypeF64x2Gt:
result = []bool{
math.Float64frombits(x1Lo) > math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) > math.Float64frombits(x2Hi),
}
case wazeroir.V128CmpTypeF64x2Le:
result = []bool{
math.Float64frombits(x1Lo) <= math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) <= math.Float64frombits(x2Hi),
}
case wazeroir.V128CmpTypeF64x2Ge:
result = []bool{
math.Float64frombits(x1Lo) >= math.Float64frombits(x2Lo),
math.Float64frombits(x1Hi) >= math.Float64frombits(x2Hi),
}
}
var retLo, retHi uint64
laneNum := len(result)
switch laneNum {
case 16:
for i, b := range result {
if b {
if i < 8 {
retLo |= 0xff << (i * 8)
} else {
retHi |= 0xff << ((i - 8) * 8)
}
}
}
case 8:
for i, b := range result {
if b {
if i < 4 {
retLo |= 0xffff << (i * 16)
} else {
retHi |= 0xffff << ((i - 4) * 16)
}
}
}
case 4:
for i, b := range result {
if b {
if i < 2 {
retLo |= 0xffff_ffff << (i * 32)
} else {
retHi |= 0xffff_ffff << ((i - 2) * 32)
}
}
}
case 2:
if result[0] {
retLo = ^uint64(0)
}
if result[1] {
retHi = ^uint64(0)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128AddSat:
x2hi, x2Lo := ce.popValue(), ce.popValue()
x1hi, x1Lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
// Lane-wise addition while saturating the overflowing values.
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#saturating-integer-addition
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 16; i++ {
var v, w byte
if i < 8 {
v, w = byte(x1Lo>>(i*8)), byte(x2Lo>>(i*8))
} else {
v, w = byte(x1hi>>((i-8)*8)), byte(x2hi>>((i-8)*8))
}
var uv uint64
if op.b3 { // signed
if subbed := int64(int8(v)) + int64(int8(w)); subbed < math.MinInt8 {
uv = uint64(byte(0x80))
} else if subbed > math.MaxInt8 {
uv = uint64(byte(0x7f))
} else {
uv = uint64(byte(int8(subbed)))
}
} else {
if subbed := int64(v) + int64(w); subbed < 0 {
uv = uint64(byte(0))
} else if subbed > math.MaxUint8 {
uv = uint64(byte(0xff))
} else {
uv = uint64(byte(subbed))
}
}
if i < 8 { // first 8 lanes are on lower 64bits.
retLo |= uv << (i * 8)
} else {
retHi |= uv << ((i - 8) * 8)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 8; i++ {
var v, w uint16
if i < 4 {
v, w = uint16(x1Lo>>(i*16)), uint16(x2Lo>>(i*16))
} else {
v, w = uint16(x1hi>>((i-4)*16)), uint16(x2hi>>((i-4)*16))
}
var uv uint64
if op.b3 { // signed
if added := int64(int16(v)) + int64(int16(w)); added < math.MinInt16 {
uv = uint64(uint16(0x8000))
} else if added > math.MaxInt16 {
uv = uint64(uint16(0x7fff))
} else {
uv = uint64(uint16(int16(added)))
}
} else {
if added := int64(v) + int64(w); added < 0 {
uv = uint64(uint16(0))
} else if added > math.MaxUint16 {
uv = uint64(uint16(0xffff))
} else {
uv = uint64(uint16(added))
}
}
if i < 4 { // first 4 lanes are on lower 64bits.
retLo |= uv << (i * 16)
} else {
retHi |= uv << ((i - 4) * 16)
}
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128SubSat:
x2hi, x2Lo := ce.popValue(), ce.popValue()
x1hi, x1Lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
// Lane-wise subtraction while saturating the overflowing values.
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#saturating-integer-subtraction
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 16; i++ {
var v, w byte
if i < 8 {
v, w = byte(x1Lo>>(i*8)), byte(x2Lo>>(i*8))
} else {
v, w = byte(x1hi>>((i-8)*8)), byte(x2hi>>((i-8)*8))
}
var uv uint64
if op.b3 { // signed
if subbed := int64(int8(v)) - int64(int8(w)); subbed < math.MinInt8 {
uv = uint64(byte(0x80))
} else if subbed > math.MaxInt8 {
uv = uint64(byte(0x7f))
} else {
uv = uint64(byte(int8(subbed)))
}
} else {
if subbed := int64(v) - int64(w); subbed < 0 {
uv = uint64(byte(0))
} else if subbed > math.MaxUint8 {
uv = uint64(byte(0xff))
} else {
uv = uint64(byte(subbed))
}
}
if i < 8 {
retLo |= uv << (i * 8)
} else {
retHi |= uv << ((i - 8) * 8)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 8; i++ {
var v, w uint16
if i < 4 {
v, w = uint16(x1Lo>>(i*16)), uint16(x2Lo>>(i*16))
} else {
v, w = uint16(x1hi>>((i-4)*16)), uint16(x2hi>>((i-4)*16))
}
var uv uint64
if op.b3 { // signed
if subbed := int64(int16(v)) - int64(int16(w)); subbed < math.MinInt16 {
uv = uint64(uint16(0x8000))
} else if subbed > math.MaxInt16 {
uv = uint64(uint16(0x7fff))
} else {
uv = uint64(uint16(int16(subbed)))
}
} else {
if subbed := int64(v) - int64(w); subbed < 0 {
uv = uint64(uint16(0))
} else if subbed > math.MaxUint16 {
uv = uint64(uint16(0xffff))
} else {
uv = uint64(uint16(subbed))
}
}
if i < 4 {
retLo |= uv << (i * 16)
} else {
retHi |= uv << ((i - 4) * 16)
}
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Mul:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI16x8:
retHi = uint64(uint16(x1hi)*uint16(x2hi)) | (uint64(uint16(x1hi>>16)*uint16(x2hi>>16)) << 16) |
(uint64(uint16(x1hi>>32)*uint16(x2hi>>32)) << 32) | (uint64(uint16(x1hi>>48)*uint16(x2hi>>48)) << 48)
retLo = uint64(uint16(x1lo)*uint16(x2lo)) | (uint64(uint16(x1lo>>16)*uint16(x2lo>>16)) << 16) |
(uint64(uint16(x1lo>>32)*uint16(x2lo>>32)) << 32) | (uint64(uint16(x1lo>>48)*uint16(x2lo>>48)) << 48)
case wazeroir.ShapeI32x4:
retHi = uint64(uint32(x1hi)*uint32(x2hi)) | (uint64(uint32(x1hi>>32)*uint32(x2hi>>32)) << 32)
retLo = uint64(uint32(x1lo)*uint32(x2lo)) | (uint64(uint32(x1lo>>32)*uint32(x2lo>>32)) << 32)
case wazeroir.ShapeI64x2:
retHi = x1hi * x2hi
retLo = x1lo * x2lo
case wazeroir.ShapeF32x4:
retHi = mulFloat32bits(uint32(x1hi), uint32(x2hi)) | mulFloat32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
retLo = mulFloat32bits(uint32(x1lo), uint32(x2lo)) | mulFloat32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
case wazeroir.ShapeF64x2:
retHi = math.Float64bits(math.Float64frombits(x1hi) * math.Float64frombits(x2hi))
retLo = math.Float64bits(math.Float64frombits(x1lo) * math.Float64frombits(x2lo))
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Div:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
if op.b1 == wazeroir.ShapeF64x2 {
retHi = math.Float64bits(math.Float64frombits(x1hi) / math.Float64frombits(x2hi))
retLo = math.Float64bits(math.Float64frombits(x1lo) / math.Float64frombits(x2lo))
} else {
retHi = divFloat32bits(uint32(x1hi), uint32(x2hi)) | divFloat32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
retLo = divFloat32bits(uint32(x1lo), uint32(x2lo)) | divFloat32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Neg:
hi, lo := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
lo = uint64(-byte(lo)) | (uint64(-byte(lo>>8)) << 8) |
(uint64(-byte(lo>>16)) << 16) | (uint64(-byte(lo>>24)) << 24) |
(uint64(-byte(lo>>32)) << 32) | (uint64(-byte(lo>>40)) << 40) |
(uint64(-byte(lo>>48)) << 48) | (uint64(-byte(lo>>56)) << 56)
hi = uint64(-byte(hi)) | (uint64(-byte(hi>>8)) << 8) |
(uint64(-byte(hi>>16)) << 16) | (uint64(-byte(hi>>24)) << 24) |
(uint64(-byte(hi>>32)) << 32) | (uint64(-byte(hi>>40)) << 40) |
(uint64(-byte(hi>>48)) << 48) | (uint64(-byte(hi>>56)) << 56)
case wazeroir.ShapeI16x8:
hi = uint64(-uint16(hi)) | (uint64(-uint16(hi>>16)) << 16) |
(uint64(-uint16(hi>>32)) << 32) | (uint64(-uint16(hi>>48)) << 48)
lo = uint64(-uint16(lo)) | (uint64(-uint16(lo>>16)) << 16) |
(uint64(-uint16(lo>>32)) << 32) | (uint64(-uint16(lo>>48)) << 48)
case wazeroir.ShapeI32x4:
hi = uint64(-uint32(hi)) | (uint64(-uint32(hi>>32)) << 32)
lo = uint64(-uint32(lo)) | (uint64(-uint32(lo>>32)) << 32)
case wazeroir.ShapeI64x2:
hi = -hi
lo = -lo
case wazeroir.ShapeF32x4:
hi = uint64(math.Float32bits(-math.Float32frombits(uint32(hi)))) |
(uint64(math.Float32bits(-math.Float32frombits(uint32(hi>>32)))) << 32)
lo = uint64(math.Float32bits(-math.Float32frombits(uint32(lo)))) |
(uint64(math.Float32bits(-math.Float32frombits(uint32(lo>>32)))) << 32)
case wazeroir.ShapeF64x2:
hi = math.Float64bits(-math.Float64frombits(hi))
lo = math.Float64bits(-math.Float64frombits(lo))
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Sqrt:
hi, lo := ce.popValue(), ce.popValue()
if op.b1 == wazeroir.ShapeF64x2 {
hi = math.Float64bits(math.Sqrt(math.Float64frombits(hi)))
lo = math.Float64bits(math.Sqrt(math.Float64frombits(lo)))
} else {
hi = uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(hi))))))) |
(uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(hi>>32))))))) << 32)
lo = uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(lo))))))) |
(uint64(math.Float32bits(float32(math.Sqrt(float64(math.Float32frombits(uint32(lo>>32))))))) << 32)
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Abs:
hi, lo := ce.popValue(), ce.popValue()
switch op.b1 {
case wazeroir.ShapeI8x16:
lo = uint64(i8Abs(byte(lo))) | (uint64(i8Abs(byte(lo>>8))) << 8) |
(uint64(i8Abs(byte(lo>>16))) << 16) | (uint64(i8Abs(byte(lo>>24))) << 24) |
(uint64(i8Abs(byte(lo>>32))) << 32) | (uint64(i8Abs(byte(lo>>40))) << 40) |
(uint64(i8Abs(byte(lo>>48))) << 48) | (uint64(i8Abs(byte(lo>>56))) << 56)
hi = uint64(i8Abs(byte(hi))) | (uint64(i8Abs(byte(hi>>8))) << 8) |
(uint64(i8Abs(byte(hi>>16))) << 16) | (uint64(i8Abs(byte(hi>>24))) << 24) |
(uint64(i8Abs(byte(hi>>32))) << 32) | (uint64(i8Abs(byte(hi>>40))) << 40) |
(uint64(i8Abs(byte(hi>>48))) << 48) | (uint64(i8Abs(byte(hi>>56))) << 56)
case wazeroir.ShapeI16x8:
hi = uint64(i16Abs(uint16(hi))) | (uint64(i16Abs(uint16(hi>>16))) << 16) |
(uint64(i16Abs(uint16(hi>>32))) << 32) | (uint64(i16Abs(uint16(hi>>48))) << 48)
lo = uint64(i16Abs(uint16(lo))) | (uint64(i16Abs(uint16(lo>>16))) << 16) |
(uint64(i16Abs(uint16(lo>>32))) << 32) | (uint64(i16Abs(uint16(lo>>48))) << 48)
case wazeroir.ShapeI32x4:
hi = uint64(i32Abs(uint32(hi))) | (uint64(i32Abs(uint32(hi>>32))) << 32)
lo = uint64(i32Abs(uint32(lo))) | (uint64(i32Abs(uint32(lo>>32))) << 32)
case wazeroir.ShapeI64x2:
if int64(hi) < 0 {
hi = -hi
}
if int64(lo) < 0 {
lo = -lo
}
case wazeroir.ShapeF32x4:
hi = hi &^ (1<<31 | 1<<63)
lo = lo &^ (1<<31 | 1<<63)
case wazeroir.ShapeF64x2:
hi = hi &^ (1 << 63)
lo = lo &^ (1 << 63)
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Popcnt:
hi, lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
for i := 0; i < 16; i++ {
var v byte
if i < 8 {
v = byte(lo >> (i * 8))
} else {
v = byte(hi >> ((i - 8) * 8))
}
var cnt uint64
for i := 0; i < 8; i++ {
if (v>>i)&0b1 != 0 {
cnt++
}
}
if i < 8 {
retLo |= cnt << (i * 8)
} else {
retHi |= cnt << ((i - 8) * 8)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Min:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
if op.b3 { // signed
retLo = uint64(i8MinS(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MinS(uint8(x1lo), uint8(x2lo))) |
uint64(i8MinS(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MinS(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
uint64(i8MinS(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MinS(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
uint64(i8MinS(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MinS(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
retHi = uint64(i8MinS(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MinS(uint8(x1hi), uint8(x2hi))) |
uint64(i8MinS(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MinS(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
uint64(i8MinS(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MinS(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
uint64(i8MinS(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MinS(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
} else {
retLo = uint64(i8MinU(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MinU(uint8(x1lo), uint8(x2lo))) |
uint64(i8MinU(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MinU(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
uint64(i8MinU(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MinU(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
uint64(i8MinU(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MinU(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
retHi = uint64(i8MinU(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MinU(uint8(x1hi), uint8(x2hi))) |
uint64(i8MinU(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MinU(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
uint64(i8MinU(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MinU(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
uint64(i8MinU(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MinU(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
}
case wazeroir.ShapeI16x8:
if op.b3 { // signed
retLo = uint64(i16MinS(uint16(x1lo), uint16(x2lo))) |
uint64(i16MinS(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
uint64(i16MinS(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
uint64(i16MinS(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
retHi = uint64(i16MinS(uint16(x1hi), uint16(x2hi))) |
uint64(i16MinS(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
uint64(i16MinS(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
uint64(i16MinS(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
} else {
retLo = uint64(i16MinU(uint16(x1lo), uint16(x2lo))) |
uint64(i16MinU(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
uint64(i16MinU(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
uint64(i16MinU(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
retHi = uint64(i16MinU(uint16(x1hi), uint16(x2hi))) |
uint64(i16MinU(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
uint64(i16MinU(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
uint64(i16MinU(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
}
case wazeroir.ShapeI32x4:
if op.b3 { // signed
retLo = uint64(i32MinS(uint32(x1lo), uint32(x2lo))) |
uint64(i32MinS(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
retHi = uint64(i32MinS(uint32(x1hi), uint32(x2hi))) |
uint64(i32MinS(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
} else {
retLo = uint64(i32MinU(uint32(x1lo), uint32(x2lo))) |
uint64(i32MinU(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
retHi = uint64(i32MinU(uint32(x1hi), uint32(x2hi))) |
uint64(i32MinU(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
}
case wazeroir.ShapeF32x4:
retHi = WasmCompatMin32bits(uint32(x1hi), uint32(x2hi)) |
WasmCompatMin32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
retLo = WasmCompatMin32bits(uint32(x1lo), uint32(x2lo)) |
WasmCompatMin32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
case wazeroir.ShapeF64x2:
retHi = math.Float64bits(moremath.WasmCompatMin64(
math.Float64frombits(x1hi),
math.Float64frombits(x2hi),
))
retLo = math.Float64bits(moremath.WasmCompatMin64(
math.Float64frombits(x1lo),
math.Float64frombits(x2lo),
))
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Max:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
if op.b3 { // signed
retLo = uint64(i8MaxS(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MaxS(uint8(x1lo), uint8(x2lo))) |
uint64(i8MaxS(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MaxS(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
uint64(i8MaxS(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MaxS(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
uint64(i8MaxS(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MaxS(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
retHi = uint64(i8MaxS(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MaxS(uint8(x1hi), uint8(x2hi))) |
uint64(i8MaxS(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MaxS(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
uint64(i8MaxS(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MaxS(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
uint64(i8MaxS(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MaxS(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
} else {
retLo = uint64(i8MaxU(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8MaxU(uint8(x1lo), uint8(x2lo))) |
uint64(i8MaxU(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8MaxU(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
uint64(i8MaxU(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8MaxU(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
uint64(i8MaxU(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8MaxU(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
retHi = uint64(i8MaxU(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8MaxU(uint8(x1hi), uint8(x2hi))) |
uint64(i8MaxU(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8MaxU(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
uint64(i8MaxU(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8MaxU(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
uint64(i8MaxU(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8MaxU(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
}
case wazeroir.ShapeI16x8:
if op.b3 { // signed
retLo = uint64(i16MaxS(uint16(x1lo), uint16(x2lo))) |
uint64(i16MaxS(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
uint64(i16MaxS(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
uint64(i16MaxS(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
retHi = uint64(i16MaxS(uint16(x1hi), uint16(x2hi))) |
uint64(i16MaxS(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
uint64(i16MaxS(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
uint64(i16MaxS(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
} else {
retLo = uint64(i16MaxU(uint16(x1lo), uint16(x2lo))) |
uint64(i16MaxU(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
uint64(i16MaxU(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
uint64(i16MaxU(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
retHi = uint64(i16MaxU(uint16(x1hi), uint16(x2hi))) |
uint64(i16MaxU(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
uint64(i16MaxU(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
uint64(i16MaxU(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
}
case wazeroir.ShapeI32x4:
if op.b3 { // signed
retLo = uint64(i32MaxS(uint32(x1lo), uint32(x2lo))) |
uint64(i32MaxS(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
retHi = uint64(i32MaxS(uint32(x1hi), uint32(x2hi))) |
uint64(i32MaxS(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
} else {
retLo = uint64(i32MaxU(uint32(x1lo), uint32(x2lo))) |
uint64(i32MaxU(uint32(x1lo>>32), uint32(x2lo>>32)))<<32
retHi = uint64(i32MaxU(uint32(x1hi), uint32(x2hi))) |
uint64(i32MaxU(uint32(x1hi>>32), uint32(x2hi>>32)))<<32
}
case wazeroir.ShapeF32x4:
retHi = WasmCompatMax32bits(uint32(x1hi), uint32(x2hi)) |
WasmCompatMax32bits(uint32(x1hi>>32), uint32(x2hi>>32))<<32
retLo = WasmCompatMax32bits(uint32(x1lo), uint32(x2lo)) |
WasmCompatMax32bits(uint32(x1lo>>32), uint32(x2lo>>32))<<32
case wazeroir.ShapeF64x2:
retHi = math.Float64bits(moremath.WasmCompatMax64(
math.Float64frombits(x1hi),
math.Float64frombits(x2hi),
))
retLo = math.Float64bits(moremath.WasmCompatMax64(
math.Float64frombits(x1lo),
math.Float64frombits(x2lo),
))
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128AvgrU:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
retLo = uint64(i8RoundingAverage(uint8(x1lo>>8), uint8(x2lo>>8)))<<8 | uint64(i8RoundingAverage(uint8(x1lo), uint8(x2lo))) |
uint64(i8RoundingAverage(uint8(x1lo>>24), uint8(x2lo>>24)))<<24 | uint64(i8RoundingAverage(uint8(x1lo>>16), uint8(x2lo>>16)))<<16 |
uint64(i8RoundingAverage(uint8(x1lo>>40), uint8(x2lo>>40)))<<40 | uint64(i8RoundingAverage(uint8(x1lo>>32), uint8(x2lo>>32)))<<32 |
uint64(i8RoundingAverage(uint8(x1lo>>56), uint8(x2lo>>56)))<<56 | uint64(i8RoundingAverage(uint8(x1lo>>48), uint8(x2lo>>48)))<<48
retHi = uint64(i8RoundingAverage(uint8(x1hi>>8), uint8(x2hi>>8)))<<8 | uint64(i8RoundingAverage(uint8(x1hi), uint8(x2hi))) |
uint64(i8RoundingAverage(uint8(x1hi>>24), uint8(x2hi>>24)))<<24 | uint64(i8RoundingAverage(uint8(x1hi>>16), uint8(x2hi>>16)))<<16 |
uint64(i8RoundingAverage(uint8(x1hi>>40), uint8(x2hi>>40)))<<40 | uint64(i8RoundingAverage(uint8(x1hi>>32), uint8(x2hi>>32)))<<32 |
uint64(i8RoundingAverage(uint8(x1hi>>56), uint8(x2hi>>56)))<<56 | uint64(i8RoundingAverage(uint8(x1hi>>48), uint8(x2hi>>48)))<<48
case wazeroir.ShapeI16x8:
retLo = uint64(i16RoundingAverage(uint16(x1lo), uint16(x2lo))) |
uint64(i16RoundingAverage(uint16(x1lo>>16), uint16(x2lo>>16)))<<16 |
uint64(i16RoundingAverage(uint16(x1lo>>32), uint16(x2lo>>32)))<<32 |
uint64(i16RoundingAverage(uint16(x1lo>>48), uint16(x2lo>>48)))<<48
retHi = uint64(i16RoundingAverage(uint16(x1hi), uint16(x2hi))) |
uint64(i16RoundingAverage(uint16(x1hi>>16), uint16(x2hi>>16)))<<16 |
uint64(i16RoundingAverage(uint16(x1hi>>32), uint16(x2hi>>32)))<<32 |
uint64(i16RoundingAverage(uint16(x1hi>>48), uint16(x2hi>>48)))<<48
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Pmin:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
if op.b1 == wazeroir.ShapeF32x4 {
if flt32(math.Float32frombits(uint32(x2lo)), math.Float32frombits(uint32(x1lo))) {
retLo = x2lo & 0x00000000_ffffffff
} else {
retLo = x1lo & 0x00000000_ffffffff
}
if flt32(math.Float32frombits(uint32(x2lo>>32)), math.Float32frombits(uint32(x1lo>>32))) {
retLo |= x2lo & 0xffffffff_00000000
} else {
retLo |= x1lo & 0xffffffff_00000000
}
if flt32(math.Float32frombits(uint32(x2hi)), math.Float32frombits(uint32(x1hi))) {
retHi = x2hi & 0x00000000_ffffffff
} else {
retHi = x1hi & 0x00000000_ffffffff
}
if flt32(math.Float32frombits(uint32(x2hi>>32)), math.Float32frombits(uint32(x1hi>>32))) {
retHi |= x2hi & 0xffffffff_00000000
} else {
retHi |= x1hi & 0xffffffff_00000000
}
} else {
if flt64(math.Float64frombits(x2lo), math.Float64frombits(x1lo)) {
retLo = x2lo
} else {
retLo = x1lo
}
if flt64(math.Float64frombits(x2hi), math.Float64frombits(x1hi)) {
retHi = x2hi
} else {
retHi = x1hi
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Pmax:
x2hi, x2lo := ce.popValue(), ce.popValue()
x1hi, x1lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
if op.b1 == wazeroir.ShapeF32x4 {
if flt32(math.Float32frombits(uint32(x1lo)), math.Float32frombits(uint32(x2lo))) {
retLo = x2lo & 0x00000000_ffffffff
} else {
retLo = x1lo & 0x00000000_ffffffff
}
if flt32(math.Float32frombits(uint32(x1lo>>32)), math.Float32frombits(uint32(x2lo>>32))) {
retLo |= x2lo & 0xffffffff_00000000
} else {
retLo |= x1lo & 0xffffffff_00000000
}
if flt32(math.Float32frombits(uint32(x1hi)), math.Float32frombits(uint32(x2hi))) {
retHi = x2hi & 0x00000000_ffffffff
} else {
retHi = x1hi & 0x00000000_ffffffff
}
if flt32(math.Float32frombits(uint32(x1hi>>32)), math.Float32frombits(uint32(x2hi>>32))) {
retHi |= x2hi & 0xffffffff_00000000
} else {
retHi |= x1hi & 0xffffffff_00000000
}
} else {
if flt64(math.Float64frombits(x1lo), math.Float64frombits(x2lo)) {
retLo = x2lo
} else {
retLo = x1lo
}
if flt64(math.Float64frombits(x1hi), math.Float64frombits(x2hi)) {
retHi = x2hi
} else {
retHi = x1hi
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Ceil:
hi, lo := ce.popValue(), ce.popValue()
if op.b1 == wazeroir.ShapeF32x4 {
lo = uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(lo))))) |
(uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(lo>>32))))) << 32)
hi = uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(hi))))) |
(uint64(math.Float32bits(moremath.WasmCompatCeilF32(math.Float32frombits(uint32(hi>>32))))) << 32)
} else {
lo = math.Float64bits(moremath.WasmCompatCeilF64(math.Float64frombits(lo)))
hi = math.Float64bits(moremath.WasmCompatCeilF64(math.Float64frombits(hi)))
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Floor:
hi, lo := ce.popValue(), ce.popValue()
if op.b1 == wazeroir.ShapeF32x4 {
lo = uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(lo))))) |
(uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(lo>>32))))) << 32)
hi = uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(hi))))) |
(uint64(math.Float32bits(moremath.WasmCompatFloorF32(math.Float32frombits(uint32(hi>>32))))) << 32)
} else {
lo = math.Float64bits(moremath.WasmCompatFloorF64(math.Float64frombits(lo)))
hi = math.Float64bits(moremath.WasmCompatFloorF64(math.Float64frombits(hi)))
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Trunc:
hi, lo := ce.popValue(), ce.popValue()
if op.b1 == wazeroir.ShapeF32x4 {
lo = uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(lo))))) |
(uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(lo>>32))))) << 32)
hi = uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(hi))))) |
(uint64(math.Float32bits(moremath.WasmCompatTruncF32(math.Float32frombits(uint32(hi>>32))))) << 32)
} else {
lo = math.Float64bits(moremath.WasmCompatTruncF64(math.Float64frombits(lo)))
hi = math.Float64bits(moremath.WasmCompatTruncF64(math.Float64frombits(hi)))
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Nearest:
hi, lo := ce.popValue(), ce.popValue()
if op.b1 == wazeroir.ShapeF32x4 {
lo = uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(lo))))) |
(uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(lo>>32))))) << 32)
hi = uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(hi))))) |
(uint64(math.Float32bits(moremath.WasmCompatNearestF32(math.Float32frombits(uint32(hi>>32))))) << 32)
} else {
lo = math.Float64bits(moremath.WasmCompatNearestF64(math.Float64frombits(lo)))
hi = math.Float64bits(moremath.WasmCompatNearestF64(math.Float64frombits(hi)))
}
ce.pushValue(lo)
ce.pushValue(hi)
frame.pc++
case wazeroir.OperationKindV128Extend:
hi, lo := ce.popValue(), ce.popValue()
var origin uint64
if op.b3 { // use lower 64 bits
origin = lo
} else {
origin = hi
}
signed := op.b2 == 1
var retHi, retLo uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 8; i++ {
v8 := byte(origin >> (i * 8))
var v16 uint16
if signed {
v16 = uint16(int8(v8))
} else {
v16 = uint16(v8)
}
if i < 4 {
retLo |= uint64(v16) << (i * 16)
} else {
retHi |= uint64(v16) << ((i - 4) * 16)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 4; i++ {
v16 := uint16(origin >> (i * 16))
var v32 uint32
if signed {
v32 = uint32(int16(v16))
} else {
v32 = uint32(v16)
}
if i < 2 {
retLo |= uint64(v32) << (i * 32)
} else {
retHi |= uint64(v32) << ((i - 2) * 32)
}
}
case wazeroir.ShapeI32x4:
v32Lo := uint32(origin)
v32Hi := uint32(origin >> 32)
if signed {
retLo = uint64(int32(v32Lo))
retHi = uint64(int32(v32Hi))
} else {
retLo = uint64(v32Lo)
retHi = uint64(v32Hi)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128ExtMul:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
var x1, x2 uint64
if op.b3 { // use lower 64 bits
x1, x2 = x1Lo, x2Lo
} else {
x1, x2 = x1Hi, x2Hi
}
signed := op.b2 == 1
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 8; i++ {
v1, v2 := byte(x1>>(i*8)), byte(x2>>(i*8))
var v16 uint16
if signed {
v16 = uint16(int16(int8(v1)) * int16(int8(v2)))
} else {
v16 = uint16(v1) * uint16(v2)
}
if i < 4 {
retLo |= uint64(v16) << (i * 16)
} else {
retHi |= uint64(v16) << ((i - 4) * 16)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 4; i++ {
v1, v2 := uint16(x1>>(i*16)), uint16(x2>>(i*16))
var v32 uint32
if signed {
v32 = uint32(int32(int16(v1)) * int32(int16(v2)))
} else {
v32 = uint32(v1) * uint32(v2)
}
if i < 2 {
retLo |= uint64(v32) << (i * 32)
} else {
retHi |= uint64(v32) << ((i - 2) * 32)
}
}
case wazeroir.ShapeI32x4:
v1Lo, v2Lo := uint32(x1), uint32(x2)
v1Hi, v2Hi := uint32(x1>>32), uint32(x2>>32)
if signed {
retLo = uint64(int64(int32(v1Lo)) * int64(int32(v2Lo)))
retHi = uint64(int64(int32(v1Hi)) * int64(int32(v2Hi)))
} else {
retLo = uint64(v1Lo) * uint64(v2Lo)
retHi = uint64(v1Hi) * uint64(v2Hi)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Q15mulrSatS:
x2hi, x2Lo := ce.popValue(), ce.popValue()
x1hi, x1Lo := ce.popValue(), ce.popValue()
var retLo, retHi uint64
for i := 0; i < 8; i++ {
var v, w int16
if i < 4 {
v, w = int16(uint16(x1Lo>>(i*16))), int16(uint16(x2Lo>>(i*16)))
} else {
v, w = int16(uint16(x1hi>>((i-4)*16))), int16(uint16(x2hi>>((i-4)*16)))
}
var uv uint64
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#saturating-integer-q-format-rounding-multiplication
if calc := ((int32(v) * int32(w)) + 0x4000) >> 15; calc < math.MinInt16 {
uv = uint64(uint16(0x8000))
} else if calc > math.MaxInt16 {
uv = uint64(uint16(0x7fff))
} else {
uv = uint64(uint16(int16(calc)))
}
if i < 4 {
retLo |= uv << (i * 16)
} else {
retHi |= uv << ((i - 4) * 16)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128ExtAddPairwise:
hi, lo := ce.popValue(), ce.popValue()
signed := op.b3
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI8x16:
for i := 0; i < 8; i++ {
var v1, v2 byte
if i < 4 {
v1, v2 = byte(lo>>((i*2)*8)), byte(lo>>((i*2+1)*8))
} else {
v1, v2 = byte(hi>>(((i-4)*2)*8)), byte(hi>>(((i-4)*2+1)*8))
}
var v16 uint16
if signed {
v16 = uint16(int16(int8(v1)) + int16(int8(v2)))
} else {
v16 = uint16(v1) + uint16(v2)
}
if i < 4 {
retLo |= uint64(v16) << (i * 16)
} else {
retHi |= uint64(v16) << ((i - 4) * 16)
}
}
case wazeroir.ShapeI16x8:
for i := 0; i < 4; i++ {
var v1, v2 uint16
if i < 2 {
v1, v2 = uint16(lo>>((i*2)*16)), uint16(lo>>((i*2+1)*16))
} else {
v1, v2 = uint16(hi>>(((i-2)*2)*16)), uint16(hi>>(((i-2)*2+1)*16))
}
var v32 uint32
if signed {
v32 = uint32(int32(int16(v1)) + int32(int16(v2)))
} else {
v32 = uint32(v1) + uint32(v2)
}
if i < 2 {
retLo |= uint64(v32) << (i * 32)
} else {
retHi |= uint64(v32) << ((i - 2) * 32)
}
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128FloatPromote:
_, toPromote := ce.popValue(), ce.popValue()
ce.pushValue(math.Float64bits(float64(math.Float32frombits(uint32(toPromote)))))
ce.pushValue(math.Float64bits(float64(math.Float32frombits(uint32(toPromote >> 32)))))
frame.pc++
case wazeroir.OperationKindV128FloatDemote:
hi, lo := ce.popValue(), ce.popValue()
ce.pushValue(
uint64(math.Float32bits(float32(math.Float64frombits(lo)))) |
(uint64(math.Float32bits(float32(math.Float64frombits(hi)))) << 32),
)
ce.pushValue(0)
frame.pc++
case wazeroir.OperationKindV128FConvertFromI:
hi, lo := ce.popValue(), ce.popValue()
v1, v2, v3, v4 := uint32(lo), uint32(lo>>32), uint32(hi), uint32(hi>>32)
signed := op.b3
var retLo, retHi uint64
switch op.b1 { // Destination shape.
case wazeroir.ShapeF32x4: // f32x4 from signed/unsigned i32x4
if signed {
retLo = uint64(math.Float32bits(float32(int32(v1)))) |
(uint64(math.Float32bits(float32(int32(v2)))) << 32)
retHi = uint64(math.Float32bits(float32(int32(v3)))) |
(uint64(math.Float32bits(float32(int32(v4)))) << 32)
} else {
retLo = uint64(math.Float32bits(float32(v1))) |
(uint64(math.Float32bits(float32(v2))) << 32)
retHi = uint64(math.Float32bits(float32(v3))) |
(uint64(math.Float32bits(float32(v4))) << 32)
}
case wazeroir.ShapeF64x2: // f64x2 from signed/unsigned i32x4
if signed {
retLo, retHi = math.Float64bits(float64(int32(v1))), math.Float64bits(float64(int32(v2)))
} else {
retLo, retHi = math.Float64bits(float64(v1)), math.Float64bits(float64(v2))
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Narrow:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
signed := op.b3
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeI16x8: // signed/unsigned i16x8 to i8x16
for i := 0; i < 8; i++ {
var v16 uint16
if i < 4 {
v16 = uint16(x1Lo >> (i * 16))
} else {
v16 = uint16(x1Hi >> ((i - 4) * 16))
}
var v byte
if signed {
if s := int16(v16); s > math.MaxInt8 {
v = math.MaxInt8
} else if s < math.MinInt8 {
s = math.MinInt8
v = byte(s)
} else {
v = byte(v16)
}
} else {
if s := int16(v16); s > math.MaxUint8 {
v = math.MaxUint8
} else if s < 0 {
v = 0
} else {
v = byte(v16)
}
}
retLo |= uint64(v) << (i * 8)
}
for i := 0; i < 8; i++ {
var v16 uint16
if i < 4 {
v16 = uint16(x2Lo >> (i * 16))
} else {
v16 = uint16(x2Hi >> ((i - 4) * 16))
}
var v byte
if signed {
if s := int16(v16); s > math.MaxInt8 {
v = math.MaxInt8
} else if s < math.MinInt8 {
s = math.MinInt8
v = byte(s)
} else {
v = byte(v16)
}
} else {
if s := int16(v16); s > math.MaxUint8 {
v = math.MaxUint8
} else if s < 0 {
v = 0
} else {
v = byte(v16)
}
}
retHi |= uint64(v) << (i * 8)
}
case wazeroir.ShapeI32x4: // signed/unsigned i32x4 to i16x8
for i := 0; i < 4; i++ {
var v32 uint32
if i < 2 {
v32 = uint32(x1Lo >> (i * 32))
} else {
v32 = uint32(x1Hi >> ((i - 2) * 32))
}
var v uint16
if signed {
if s := int32(v32); s > math.MaxInt16 {
v = math.MaxInt16
} else if s < math.MinInt16 {
s = math.MinInt16
v = uint16(s)
} else {
v = uint16(v32)
}
} else {
if s := int32(v32); s > math.MaxUint16 {
v = math.MaxUint16
} else if s < 0 {
v = 0
} else {
v = uint16(v32)
}
}
retLo |= uint64(v) << (i * 16)
}
for i := 0; i < 4; i++ {
var v32 uint32
if i < 2 {
v32 = uint32(x2Lo >> (i * 32))
} else {
v32 = uint32(x2Hi >> ((i - 2) * 32))
}
var v uint16
if signed {
if s := int32(v32); s > math.MaxInt16 {
v = math.MaxInt16
} else if s < math.MinInt16 {
s = math.MinInt16
v = uint16(s)
} else {
v = uint16(v32)
}
} else {
if s := int32(v32); s > math.MaxUint16 {
v = math.MaxUint16
} else if s < 0 {
v = 0
} else {
v = uint16(v32)
}
}
retHi |= uint64(v) << (i * 16)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
case wazeroir.OperationKindV128Dot:
x2Hi, x2Lo := ce.popValue(), ce.popValue()
x1Hi, x1Lo := ce.popValue(), ce.popValue()
ce.pushValue(
uint64(uint32(int32(int16(x1Lo>>0))*int32(int16(x2Lo>>0))+int32(int16(x1Lo>>16))*int32(int16(x2Lo>>16)))) |
(uint64(uint32(int32(int16(x1Lo>>32))*int32(int16(x2Lo>>32))+int32(int16(x1Lo>>48))*int32(int16(x2Lo>>48)))) << 32),
)
ce.pushValue(
uint64(uint32(int32(int16(x1Hi>>0))*int32(int16(x2Hi>>0))+int32(int16(x1Hi>>16))*int32(int16(x2Hi>>16)))) |
(uint64(uint32(int32(int16(x1Hi>>32))*int32(int16(x2Hi>>32))+int32(int16(x1Hi>>48))*int32(int16(x2Hi>>48)))) << 32),
)
frame.pc++
case wazeroir.OperationKindV128ITruncSatFromF:
hi, lo := ce.popValue(), ce.popValue()
signed := op.b3
var retLo, retHi uint64
switch op.b1 {
case wazeroir.ShapeF32x4: // f32x4 to i32x4
for i, f64 := range [4]float64{
math.Trunc(float64(math.Float32frombits(uint32(lo)))),
math.Trunc(float64(math.Float32frombits(uint32(lo >> 32)))),
math.Trunc(float64(math.Float32frombits(uint32(hi)))),
math.Trunc(float64(math.Float32frombits(uint32(hi >> 32))))} {
var v uint32
if math.IsNaN(f64) {
v = 0
} else if signed {
if f64 < math.MinInt32 {
f64 = math.MinInt32
} else if f64 > math.MaxInt32 {
f64 = math.MaxInt32
}
v = uint32(int32(f64))
} else {
if f64 < 0 {
f64 = 0
} else if f64 > math.MaxUint32 {
f64 = math.MaxUint32
}
v = uint32(f64)
}
if i < 2 {
retLo |= uint64(v) << (i * 32)
} else {
retHi |= uint64(v) << ((i - 2) * 32)
}
}
case wazeroir.ShapeF64x2: // f64x2 to i32x4
for i, f := range [2]float64{
math.Trunc(math.Float64frombits(lo)),
math.Trunc(math.Float64frombits(hi)),
} {
var v uint32
if math.IsNaN(f) {
v = 0
} else if signed {
if f < math.MinInt32 {
f = math.MinInt32
} else if f > math.MaxInt32 {
f = math.MaxInt32
}
v = uint32(int32(f))
} else {
if f < 0 {
f = 0
} else if f > math.MaxUint32 {
f = math.MaxUint32
}
v = uint32(f)
}
retLo |= uint64(v) << (i * 32)
}
}
ce.pushValue(retLo)
ce.pushValue(retHi)
frame.pc++
}
}
ce.popFrame()
}
// callerMemory returns the caller context memory or nil if the host function
// was called directly.
func (ce *callEngine) callerMemory() *wasm.MemoryInstance {
if len(ce.frames) > 0 {
lastFrameSource := ce.frames[len(ce.frames)-1].f.source
if !lastFrameSource.IsHostFunction {
return lastFrameSource.Module.Memory
}
}
return nil
}
func WasmCompatMax32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(moremath.WasmCompatMax32(
math.Float32frombits(v1),
math.Float32frombits(v2),
)))
}
func WasmCompatMin32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(moremath.WasmCompatMin32(
math.Float32frombits(v1),
math.Float32frombits(v2),
)))
}
func addFloat32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(math.Float32frombits(v1) + math.Float32frombits(v2)))
}
func subFloat32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(math.Float32frombits(v1) - math.Float32frombits(v2)))
}
func mulFloat32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(math.Float32frombits(v1) * math.Float32frombits(v2)))
}
func divFloat32bits(v1, v2 uint32) uint64 {
return uint64(math.Float32bits(math.Float32frombits(v1) / math.Float32frombits(v2)))
}
// https://www.w3.org/TR/2022/WD-wasm-core-2-20220419/exec/numerics.html#xref-exec-numerics-op-flt-mathrm-flt-n-z-1-z-2
func flt32(z1, z2 float32) bool {
if z1 != z1 || z2 != z2 {
return false
} else if z1 == z2 {
return false
} else if math.IsInf(float64(z1), 1) {
return false
} else if math.IsInf(float64(z1), -1) {
return true
} else if math.IsInf(float64(z2), 1) {
return true
} else if math.IsInf(float64(z2), -1) {
return false
}
return z1 < z2
}
// https://www.w3.org/TR/2022/WD-wasm-core-2-20220419/exec/numerics.html#xref-exec-numerics-op-flt-mathrm-flt-n-z-1-z-2
func flt64(z1, z2 float64) bool {
if z1 != z1 || z2 != z2 {
return false
} else if z1 == z2 {
return false
} else if math.IsInf(z1, 1) {
return false
} else if math.IsInf(z1, -1) {
return true
} else if math.IsInf(z2, 1) {
return true
} else if math.IsInf(z2, -1) {
return false
}
return z1 < z2
}
func i8RoundingAverage(v1, v2 byte) byte {
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#lane-wise-integer-rounding-average
return byte((uint16(v1) + uint16(v2) + uint16(1)) / 2)
}
func i16RoundingAverage(v1, v2 uint16) uint16 {
// https://github.com/WebAssembly/spec/blob/main/proposals/simd/SIMD.md#lane-wise-integer-rounding-average
return uint16((uint32(v1) + uint32(v2) + 1) / 2)
}
func i8Abs(v byte) byte {
if i := int8(v); i < 0 {
return byte(-i)
} else {
return byte(i)
}
}
func i8MaxU(v1, v2 byte) byte {
if v1 < v2 {
return v2
} else {
return v1
}
}
func i8MinU(v1, v2 byte) byte {
if v1 > v2 {
return v2
} else {
return v1
}
}
func i8MaxS(v1, v2 byte) byte {
if int8(v1) < int8(v2) {
return v2
} else {
return v1
}
}
func i8MinS(v1, v2 byte) byte {
if int8(v1) > int8(v2) {
return v2
} else {
return v1
}
}
func i16MaxU(v1, v2 uint16) uint16 {
if v1 < v2 {
return v2
} else {
return v1
}
}
func i16MinU(v1, v2 uint16) uint16 {
if v1 > v2 {
return v2
} else {
return v1
}
}
func i16MaxS(v1, v2 uint16) uint16 {
if int16(v1) < int16(v2) {
return v2
} else {
return v1
}
}
func i16MinS(v1, v2 uint16) uint16 {
if int16(v1) > int16(v2) {
return v2
} else {
return v1
}
}
func i32MaxU(v1, v2 uint32) uint32 {
if v1 < v2 {
return v2
} else {
return v1
}
}
func i32MinU(v1, v2 uint32) uint32 {
if v1 > v2 {
return v2
} else {
return v1
}
}
func i32MaxS(v1, v2 uint32) uint32 {
if int32(v1) < int32(v2) {
return v2
} else {
return v1
}
}
func i32MinS(v1, v2 uint32) uint32 {
if int32(v1) > int32(v2) {
return v2
} else {
return v1
}
}
func i16Abs(v uint16) uint16 {
if i := int16(v); i < 0 {
return uint16(-i)
} else {
return uint16(i)
}
}
func i32Abs(v uint32) uint32 {
if i := int32(v); i < 0 {
return uint32(-i)
} else {
return uint32(i)
}
}
func (ce *callEngine) callNativeFuncWithListener(ctx context.Context, callCtx *wasm.CallContext, f *function, fnl experimental.FunctionListener) context.Context {
ctx = fnl.Before(ctx, f.source.Definition(), ce.peekValues(len(f.source.Type.Params)))
ce.callNativeFunc(ctx, callCtx, f)
// TODO: This doesn't get the error due to use of panic to propagate them.
fnl.After(ctx, f.source.Definition(), nil, ce.peekValues(len(f.source.Type.Results)))
return ctx
}
// popMemoryOffset takes a memory offset off the stack for use in load and store instructions.
// As the top of stack value is 64-bit, this ensures it is in range before returning it.
func (ce *callEngine) popMemoryOffset(op *interpreterOp) uint32 {
// TODO: Document what 'us' is and why we expect to look at value 1.
offset := op.us[1] + ce.popValue()
if offset > math.MaxUint32 {
panic(wasmruntime.ErrRuntimeOutOfBoundsMemoryAccess)
}
return uint32(offset)
}
func (ce *callEngine) callGoFuncWithStack(ctx context.Context, callCtx *wasm.CallContext, f *function) {
params := wasm.PopGoFuncParams(f.source, ce.popValue)
results := ce.callGoFunc(ctx, callCtx, f, params)
for _, v := range results {
ce.pushValue(v)
}
}