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builtins.ts
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/**
* Built-in elements providing WebAssembly core functionality.
* @module builtins
*//***/
import {
Compiler,
ConversionKind,
WrapMode,
Feature
} from "./compiler";
import {
DiagnosticCode
} from "./diagnostics";
import {
Node,
NodeKind,
Expression,
LiteralKind,
LiteralExpression,
StringLiteralExpression,
CallExpression
} from "./ast";
import {
Type,
TypeKind,
TypeFlags
} from "./types";
import {
BinaryOp,
UnaryOp,
HostOp,
NativeType,
ExpressionRef,
ExpressionId,
getExpressionId,
getExpressionType,
getConstValueI64High,
getConstValueI64Low,
getConstValueI32,
AtomicRMWOp
} from "./module";
import {
ElementKind,
FunctionPrototype,
Class,
Field,
OperatorKind,
FlowFlags,
Global,
DecoratorFlags,
Element
} from "./program";
import {
ReportMode
} from "./resolver";
import {
CommonFlags
} from "./common";
/** Compiles a call to a built-in function. */
export function compileCall(
compiler: Compiler,
prototype: FunctionPrototype,
typeArguments: Type[] | null,
operands: Expression[],
contextualType: Type,
reportNode: CallExpression
): ExpressionRef {
var module = compiler.module;
var arg0: ExpressionRef,
arg1: ExpressionRef,
arg2: ExpressionRef,
ret: ExpressionRef;
// NOTE that some implementations below make use of the select expression where straight-forward.
// whether worth or not should probably be tested once it's known if/how embedders handle it.
// search: createSelect
switch (prototype.internalName) {
// types
case "isInteger": { // isInteger<T!>() / isInteger<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
return type.is(TypeFlags.INTEGER) && !type.is(TypeFlags.REFERENCE)
? module.createI32(1)
: module.createI32(0);
}
case "isFloat": { // isFloat<T!>() / isFloat<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
return type.is(TypeFlags.FLOAT)
? module.createI32(1)
: module.createI32(0);
}
case "isSigned": { // isSigned<T!>() / isSigned<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
return type.is(TypeFlags.SIGNED)
? module.createI32(1)
: module.createI32(0);
}
case "isReference": { // isReference<T!>() / isReference<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
return type.is(TypeFlags.REFERENCE)
? module.createI32(1)
: module.createI32(0);
}
case "isString": { // isString<T!>() / isString<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
let classType = type.classReference;
if (classType) {
let stringInstance = compiler.program.stringInstance;
if (stringInstance && classType.isAssignableTo(stringInstance)) return module.createI32(1);
}
return module.createI32(0);
}
case "isArray": { // isArray<T!>() / isArray<T?>(value: T) -> bool
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
let classType = type.classReference;
return (
classType !== null && classType.prototype.extends(compiler.program.arrayPrototype)
) ? module.createI32(1) : module.createI32(0);
}
case "isDefined": { // isDefined(expression) -> bool
compiler.currentType = Type.bool;
if (typeArguments) {
compiler.error(
DiagnosticCode.Type_0_is_not_generic,
reportNode.range, prototype.internalName
);
}
if (operands.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
let element = compiler.resolver.resolveExpression(
operands[0],
compiler.currentFlow,
Type.void,
ReportMode.SWALLOW
);
return module.createI32(element ? 1 : 0);
}
case "isConstant": { // isConstant(expression) -> bool
compiler.currentType = Type.bool;
if (typeArguments) {
compiler.error(
DiagnosticCode.Type_0_is_not_generic,
reportNode.range, prototype.internalName
);
}
if (operands.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
let expr = compiler.compileExpressionRetainType(operands[0], Type.i32, WrapMode.NONE);
compiler.currentType = Type.bool;
return module.createI32(getExpressionId(expr) == ExpressionId.Const ? 1 : 0);
}
case "isManaged": { // isManaged<T>() -> bool
if (!compiler.program.hasGC) {
compiler.currentType = Type.bool;
return module.createI32(0);
}
let type = evaluateConstantType(compiler, typeArguments, operands, reportNode);
compiler.currentType = Type.bool;
if (!type) return module.createUnreachable();
let classType = type.classReference;
return classType !== null && !classType.hasDecorator(DecoratorFlags.UNMANAGED)
? module.createI32(1)
: module.createI32(0);
}
// math
case "clz": { // clz<T?>(value: T) -> T
if (operands.length != 1) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.i32, ConversionKind.NONE, WrapMode.WRAP);
}
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.U8:
case TypeKind.U16: {
ret = module.createUnary(UnaryOp.ClzI32, arg0);
break;
}
case TypeKind.BOOL: // usually overflows
case TypeKind.I32:
case TypeKind.U32: {
ret = module.createUnary(UnaryOp.ClzI32, arg0);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.ISIZE: {
ret = module.createUnary(
compiler.options.isWasm64
? UnaryOp.ClzI64
: UnaryOp.ClzI32,
arg0
);
break;
}
case TypeKind.I64:
case TypeKind.U64: {
ret = module.createUnary(UnaryOp.ClzI64, arg0);
break;
}
default: {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret;
}
case "ctz": { // ctz<T?>(value: T) -> T
if (operands.length != 1) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.NONE, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.i32, ConversionKind.NONE, WrapMode.WRAP);
}
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.U8:
case TypeKind.U16: {
ret = module.createUnary(UnaryOp.CtzI32, arg0);
break;
}
case TypeKind.BOOL: // usually overflows
case TypeKind.I32:
case TypeKind.U32: {
ret = module.createUnary(UnaryOp.CtzI32, arg0);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.ISIZE: {
ret = module.createUnary(
compiler.options.isWasm64
? UnaryOp.CtzI64
: UnaryOp.CtzI32,
arg0
);
break;
}
case TypeKind.I64:
case TypeKind.U64: {
ret = module.createUnary(UnaryOp.CtzI64, arg0);
break;
}
default: {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret;
}
case "popcnt": { // popcnt<T?>(value: T) -> T
if (operands.length != 1) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.i32, ConversionKind.NONE, WrapMode.WRAP);
}
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.U8:
case TypeKind.U16: {
ret = module.createUnary(UnaryOp.PopcntI32, arg0);
break;
}
case TypeKind.BOOL: // usually overflows
case TypeKind.I32:
case TypeKind.U32: {
ret = module.createUnary(UnaryOp.PopcntI32, arg0);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.ISIZE: {
ret = module.createUnary(
compiler.options.isWasm64
? UnaryOp.PopcntI64
: UnaryOp.PopcntI32,
arg0
);
break;
}
case TypeKind.I64:
case TypeKind.U64: {
ret = module.createUnary(UnaryOp.PopcntI64, arg0);
break;
}
default: {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret;
}
case "rotl": { // rotl<T?>(value: T, shift: T) -> T
if (operands.length != 2) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "2", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.i32, ConversionKind.NONE, WrapMode.WRAP);
}
arg1 = compiler.compileExpression(operands[1], compiler.currentType, ConversionKind.IMPLICIT, WrapMode.NONE);
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.U8:
case TypeKind.U16:
case TypeKind.BOOL: {
ret = compiler.ensureSmallIntegerWrap(
module.createBinary(BinaryOp.RotlI32, arg0, arg1),
compiler.currentType
);
// fall-through
}
case TypeKind.I32:
case TypeKind.U32: {
ret = module.createBinary(BinaryOp.RotlI32, arg0, arg1);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.ISIZE: {
ret = module.createBinary(
compiler.options.isWasm64
? BinaryOp.RotlI64
: BinaryOp.RotlI32,
arg0,
arg1
);
break;
}
case TypeKind.I64:
case TypeKind.U64: {
ret = module.createBinary(BinaryOp.RotlI64, arg0, arg1);
break;
}
default: {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret; // possibly overflows
}
case "rotr": { // rotr<T?>(value: T, shift: T) -> T
if (operands.length != 2) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "2", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.i32, ConversionKind.NONE, WrapMode.WRAP);
}
arg1 = compiler.compileExpression(operands[1], compiler.currentType, ConversionKind.IMPLICIT, WrapMode.NONE);
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.U8:
case TypeKind.U16:
case TypeKind.BOOL: {
ret = compiler.ensureSmallIntegerWrap(
module.createBinary(BinaryOp.RotrI32, arg0, arg1),
compiler.currentType
);
break;
}
case TypeKind.I32:
case TypeKind.U32: {
ret = module.createBinary(BinaryOp.RotrI32, arg0, arg1);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.ISIZE: {
ret = module.createBinary(
compiler.options.isWasm64
? BinaryOp.RotrI64
: BinaryOp.RotrI32,
arg0,
arg1
);
break;
}
case TypeKind.I64:
case TypeKind.U64: {
ret = module.createBinary(BinaryOp.RotrI64, arg0, arg1);
break;
}
default: {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret; // possibly overflowws
}
case "abs": { // abs<T?>(value: T) -> T
if (operands.length != 1) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "1", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.f64, ConversionKind.NONE, WrapMode.WRAP);
}
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.I32: {
let flow = compiler.currentFlow;
// possibly overflows, e.g. abs<i8>(-128) == 128
let tempLocal1 = flow.getTempLocal(Type.i32, false);
let tempLocalIndex2 = flow.getAndFreeTempLocal(Type.i32, false).index;
let tempLocalIndex1 = tempLocal1.index;
// (x + (x >> 31)) ^ (x >> 31)
ret = module.createBinary(BinaryOp.XorI32,
module.createBinary(BinaryOp.AddI32,
module.createTeeLocal(
tempLocalIndex2,
module.createBinary(BinaryOp.ShrI32,
module.createTeeLocal(tempLocalIndex1, arg0),
module.createI32(31)
)
),
module.createGetLocal(tempLocalIndex1, NativeType.I32)
),
module.createGetLocal(tempLocalIndex2, NativeType.I32)
);
flow.freeTempLocal(tempLocal1);
break;
}
case TypeKind.ISIZE: {
let options = compiler.options;
let flow = compiler.currentFlow;
let wasm64 = options.isWasm64;
let tempLocal1 = flow.getTempLocal(options.usizeType, false);
let tempLocalIndex2 = flow.getAndFreeTempLocal(options.usizeType, false).index;
let tempLocalIndex1 = tempLocal1.index;
ret = module.createBinary(wasm64 ? BinaryOp.XorI64 : BinaryOp.XorI32,
module.createBinary(wasm64 ? BinaryOp.AddI64 : BinaryOp.AddI32,
module.createTeeLocal(
tempLocalIndex2,
module.createBinary(wasm64 ? BinaryOp.ShrI64 : BinaryOp.ShrI32,
module.createTeeLocal(tempLocalIndex1, arg0),
wasm64 ? module.createI64(63) : module.createI32(31)
)
),
module.createGetLocal(tempLocalIndex1, options.nativeSizeType)
),
module.createGetLocal(tempLocalIndex2, options.nativeSizeType)
);
flow.freeTempLocal(tempLocal1);
break;
}
case TypeKind.I64: {
let flow = compiler.currentFlow;
let tempLocal1 = flow.getTempLocal(Type.i64, false);
let tempLocalIndex2 = flow.getAndFreeTempLocal(Type.i64, false).index;
let tempLocalIndex1 = tempLocal1.index;
// (x + (x >> 63)) ^ (x >> 63)
ret = module.createBinary(BinaryOp.XorI64,
module.createBinary(BinaryOp.AddI64,
module.createTeeLocal(
tempLocalIndex2,
module.createBinary(BinaryOp.ShrI64,
module.createTeeLocal(tempLocalIndex1, arg0),
module.createI64(63)
)
),
module.createGetLocal(tempLocalIndex1, NativeType.I64)
),
module.createGetLocal(tempLocalIndex2, NativeType.I64)
);
flow.freeTempLocal(tempLocal1);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
// fall-through
}
case TypeKind.U8:
case TypeKind.U16:
case TypeKind.U32:
case TypeKind.U64:
case TypeKind.BOOL: {
ret = arg0;
break;
}
case TypeKind.F32: {
ret = module.createUnary(UnaryOp.AbsF32, arg0);
break;
}
case TypeKind.F64: {
ret = module.createUnary(UnaryOp.AbsF64, arg0);
break;
}
case TypeKind.VOID: {
ret = module.createUnreachable();
break;
}
default: { // void
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret;
}
case "max": { // max<T?>(left: T, right: T) -> T
if (operands.length != 2) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "2", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.f64, ConversionKind.NONE, WrapMode.WRAP);
}
arg1 = compiler.compileExpression(operands[1], compiler.currentType, ConversionKind.IMPLICIT, WrapMode.WRAP);
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.I32: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(
compiler.currentType,
!flow.canOverflow(arg0, compiler.currentType)
);
let tempLocal1 = flow.getAndFreeTempLocal(
compiler.currentType,
!flow.canOverflow(arg1, compiler.currentType)
);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(BinaryOp.GtI32,
module.createGetLocal(tempLocal0.index, NativeType.I32),
module.createGetLocal(tempLocal1.index, NativeType.I32)
)
);
break;
}
case TypeKind.U8:
case TypeKind.U16:
case TypeKind.U32:
case TypeKind.BOOL: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(
compiler.currentType,
!flow.canOverflow(arg0, compiler.currentType)
);
let tempLocal1 = flow.getAndFreeTempLocal(
compiler.currentType,
!flow.canOverflow(arg1, compiler.currentType)
);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(BinaryOp.GtU32,
module.createGetLocal(tempLocal0.index, NativeType.I32),
module.createGetLocal(tempLocal1.index, NativeType.I32)
)
);
break;
}
case TypeKind.I64: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(Type.i64, false);
let tempLocal1 = flow.getAndFreeTempLocal(Type.i64, false);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(BinaryOp.GtI64,
module.createGetLocal(tempLocal0.index, NativeType.I64),
module.createGetLocal(tempLocal1.index, NativeType.I64)
)
);
break;
}
case TypeKind.U64: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(Type.i64, false);
let tempLocal1 = flow.getAndFreeTempLocal(Type.i64, false);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(BinaryOp.GtU64,
module.createGetLocal(tempLocal0.index, NativeType.I64),
module.createGetLocal(tempLocal1.index, NativeType.I64)
)
);
break;
}
case TypeKind.ISIZE: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(compiler.options.usizeType, false);
let tempLocal1 = flow.getAndFreeTempLocal(compiler.options.usizeType, false);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(
compiler.options.isWasm64
? BinaryOp.GtI64
: BinaryOp.GtI32,
module.createGetLocal(tempLocal0.index, compiler.options.nativeSizeType),
module.createGetLocal(tempLocal1.index, compiler.options.nativeSizeType)
)
);
break;
}
case TypeKind.USIZE: {
if (compiler.currentType.is(TypeFlags.REFERENCE)) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(compiler.options.usizeType, false);
let tempLocal1 = flow.getAndFreeTempLocal(compiler.options.usizeType, false);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(
compiler.options.isWasm64
? BinaryOp.GtU64
: BinaryOp.GtU32,
module.createGetLocal(tempLocal0.index, compiler.options.nativeSizeType),
module.createGetLocal(tempLocal1.index, compiler.options.nativeSizeType)
)
);
break;
}
case TypeKind.F32: {
ret = module.createBinary(BinaryOp.MaxF32, arg0, arg1);
break;
}
case TypeKind.F64: {
ret = module.createBinary(BinaryOp.MaxF64, arg0, arg1);
break;
}
default: { // void
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
ret = module.createUnreachable();
break;
}
}
return ret;
}
case "min": { // min<T?>(left: T, right: T) -> T
if (operands.length != 2) {
if (typeArguments) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
if (typeArguments.length != 1) {
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
}
}
compiler.error(
DiagnosticCode.Expected_0_arguments_but_got_1,
reportNode.range, "2", operands.length.toString(10)
);
return module.createUnreachable();
}
if (typeArguments) {
if (typeArguments.length != 1) {
if (typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments.length.toString(10)
);
return module.createUnreachable();
}
arg0 = compiler.compileExpression(operands[0], typeArguments[0], ConversionKind.IMPLICIT, WrapMode.WRAP);
} else {
arg0 = compiler.compileExpression(operands[0], Type.f64, ConversionKind.NONE, WrapMode.WRAP);
}
arg1 = compiler.compileExpression(operands[1], compiler.currentType, ConversionKind.IMPLICIT, WrapMode.WRAP);
switch (compiler.currentType.kind) {
case TypeKind.I8:
case TypeKind.I16:
case TypeKind.I32: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(
compiler.currentType,
!flow.canOverflow(arg0, compiler.currentType)
);
let tempLocal1 = flow.getAndFreeTempLocal(
compiler.currentType,
!flow.canOverflow(arg1, compiler.currentType)
);
flow.freeTempLocal(tempLocal0);
ret = module.createSelect(
module.createTeeLocal(tempLocal0.index, arg0),
module.createTeeLocal(tempLocal1.index, arg1),
module.createBinary(BinaryOp.LtI32,
module.createGetLocal(tempLocal0.index, NativeType.I32),
module.createGetLocal(tempLocal1.index, NativeType.I32)
)
);
break;
}
case TypeKind.U8:
case TypeKind.U16:
case TypeKind.U32:
case TypeKind.BOOL: {
let flow = compiler.currentFlow;
let tempLocal0 = flow.getTempLocal(
compiler.currentType,
!flow.canOverflow(arg0, compiler.currentType)
);
let tempLocal1 = flow.getAndFreeTempLocal(