cbf015025a
This CL adds a LocationReference specifically for slices to Torque. This allows us to safely reference arrays in objects and pass around such references. For an array of T-typed elements, referencing yields a Slice<T>. In addition, the traditional element access syntax ('o.array[i]') now internally produces a slice, indexes it at 'i' and dereferences the resulting HeapReference.
Bug: v8:7793
Change-Id: I4af58e4d2feac547c55a1f6f9350a6c510383df2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1771782
Commit-Queue: Georg Schmid <gsps@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63479}
1032 lines
24 KiB
Plaintext
1032 lines
24 KiB
Plaintext
// Copyright 2018 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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namespace test {
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macro ElementsKindTestHelper1(kind: constexpr ElementsKind): bool {
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if constexpr ((kind == UINT8_ELEMENTS) || (kind == UINT16_ELEMENTS)) {
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return true;
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} else {
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return false;
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}
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}
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macro ElementsKindTestHelper2(kind: constexpr ElementsKind): constexpr bool {
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return ((kind == UINT8_ELEMENTS) || (kind == UINT16_ELEMENTS));
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}
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macro LabelTestHelper1(): never
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labels Label1 {
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goto Label1;
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}
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macro LabelTestHelper2(): never
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labels Label2(Smi) {
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goto Label2(42);
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}
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macro LabelTestHelper3(): never
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labels Label3(Oddball, Smi) {
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goto Label3(Null, 7);
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}
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@export
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macro TestConstexpr1() {
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check(FromConstexpr<bool>(IsFastElementsKind(PACKED_SMI_ELEMENTS)));
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}
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@export
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macro TestConstexprIf() {
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check(ElementsKindTestHelper1(UINT8_ELEMENTS));
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check(ElementsKindTestHelper1(UINT16_ELEMENTS));
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check(!ElementsKindTestHelper1(UINT32_ELEMENTS));
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}
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@export
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macro TestConstexprReturn() {
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check(FromConstexpr<bool>(ElementsKindTestHelper2(UINT8_ELEMENTS)));
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check(FromConstexpr<bool>(ElementsKindTestHelper2(UINT16_ELEMENTS)));
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check(!FromConstexpr<bool>(ElementsKindTestHelper2(UINT32_ELEMENTS)));
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check(FromConstexpr<bool>(!ElementsKindTestHelper2(UINT32_ELEMENTS)));
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}
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@export
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macro TestGotoLabel(): Boolean {
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try {
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LabelTestHelper1() otherwise Label1;
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}
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label Label1 {
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return True;
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}
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}
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@export
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macro TestGotoLabelWithOneParameter(): Boolean {
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try {
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LabelTestHelper2() otherwise Label2;
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}
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label Label2(smi: Smi) {
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check(smi == 42);
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return True;
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}
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}
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@export
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macro TestGotoLabelWithTwoParameters(): Boolean {
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try {
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LabelTestHelper3() otherwise Label3;
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}
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label Label3(o: Oddball, smi: Smi) {
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check(o == Null);
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check(smi == 7);
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return True;
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}
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}
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builtin GenericBuiltinTest<T: type>(_c: Context, _param: T): JSAny {
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return Null;
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}
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GenericBuiltinTest<JSAny>(_c: Context, param: JSAny): JSAny {
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return param;
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}
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@export
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macro TestBuiltinSpecialization(c: Context) {
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check(GenericBuiltinTest<Smi>(c, 0) == Null);
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check(GenericBuiltinTest<Smi>(c, 1) == Null);
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check(GenericBuiltinTest<JSAny>(c, Undefined) == Undefined);
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check(GenericBuiltinTest<JSAny>(c, Undefined) == Undefined);
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}
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macro LabelTestHelper4(flag: constexpr bool): never
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labels Label4, Label5 {
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if constexpr (flag) {
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goto Label4;
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} else {
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goto Label5;
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}
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}
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macro CallLabelTestHelper4(flag: constexpr bool): bool {
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try {
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LabelTestHelper4(flag) otherwise Label4, Label5;
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}
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label Label4 {
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return true;
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}
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label Label5 {
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return false;
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}
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}
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@export
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macro TestPartiallyUnusedLabel(): Boolean {
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const r1: bool = CallLabelTestHelper4(true);
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const r2: bool = CallLabelTestHelper4(false);
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if (r1 && !r2) {
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return True;
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} else {
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return False;
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}
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}
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macro GenericMacroTest<T: type>(_param: T): Object {
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return Undefined;
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}
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GenericMacroTest<Object>(param2: Object): Object {
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return param2;
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}
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macro GenericMacroTestWithLabels<T: type>(_param: T): Object
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labels _X {
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return Undefined;
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}
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GenericMacroTestWithLabels<Object>(param2: Object): Object
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labels Y {
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return Cast<Smi>(param2) otherwise Y;
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}
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@export
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macro TestMacroSpecialization() {
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try {
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const _smi0: Smi = 0;
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check(GenericMacroTest<Smi>(0) == Undefined);
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check(GenericMacroTest<Smi>(1) == Undefined);
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check(GenericMacroTest<Object>(Null) == Null);
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check(GenericMacroTest<Object>(False) == False);
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check(GenericMacroTest<Object>(True) == True);
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check((GenericMacroTestWithLabels<Smi>(0) otherwise Fail) == Undefined);
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check((GenericMacroTestWithLabels<Smi>(0) otherwise Fail) == Undefined);
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try {
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GenericMacroTestWithLabels<Object>(False) otherwise Expected;
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}
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label Expected {}
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}
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label Fail {
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unreachable;
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}
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}
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builtin TestHelperPlus1(_context: Context, x: Smi): Smi {
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return x + 1;
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}
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builtin TestHelperPlus2(_context: Context, x: Smi): Smi {
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return x + 2;
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}
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@export
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macro TestFunctionPointers(implicit context: Context)(): Boolean {
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let fptr: builtin(Context, Smi) => Smi = TestHelperPlus1;
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check(fptr(context, 42) == 43);
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fptr = TestHelperPlus2;
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check(fptr(context, 42) == 44);
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return True;
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}
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@export
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macro TestVariableRedeclaration(implicit context: Context)(): Boolean {
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let _var1: int31 = FromConstexpr<bool>(42 == 0) ? 0 : 1;
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let _var2: int31 = FromConstexpr<bool>(42 == 0) ? 1 : 0;
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return True;
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}
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@export
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macro TestTernaryOperator(x: Smi): Smi {
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const b: bool = x < 0 ? true : false;
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return b ? x - 10 : x + 100;
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}
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@export
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macro TestFunctionPointerToGeneric(c: Context) {
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const fptr1: builtin(Context, Smi) => JSAny = GenericBuiltinTest<Smi>;
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const fptr2: builtin(Context, JSAny) => JSAny = GenericBuiltinTest<JSAny>;
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check(fptr1(c, 0) == Null);
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check(fptr1(c, 1) == Null);
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check(fptr2(c, Undefined) == Undefined);
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check(fptr2(c, Undefined) == Undefined);
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}
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type ObjectToObject = builtin(Context, JSAny) => JSAny;
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@export
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macro TestTypeAlias(x: ObjectToObject): BuiltinPtr {
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return x;
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}
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@export
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macro TestUnsafeCast(implicit context: Context)(n: Number): Boolean {
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if (TaggedIsSmi(n)) {
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const m: Smi = UnsafeCast<Smi>(n);
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check(TestHelperPlus1(context, m) == 11);
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return True;
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}
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return False;
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}
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@export
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macro TestHexLiteral() {
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check(Convert<intptr>(0xffff) + 1 == 0x10000);
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check(Convert<intptr>(-0xffff) == -65535);
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}
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@export
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macro TestLargeIntegerLiterals(implicit c: Context)() {
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let _x: int32 = 0x40000000;
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let _y: int32 = 0x7fffffff;
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}
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@export
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macro TestMultilineAssert() {
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const someVeryLongVariableNameThatWillCauseLineBreaks: Smi = 5;
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check(
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someVeryLongVariableNameThatWillCauseLineBreaks > 0 &&
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someVeryLongVariableNameThatWillCauseLineBreaks < 10);
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}
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@export
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macro TestNewlineInString() {
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Print('Hello, World!\n');
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}
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const kConstexprConst: constexpr int31 = 5;
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const kIntptrConst: intptr = 4;
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const kSmiConst: Smi = 3;
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@export
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macro TestModuleConstBindings() {
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check(kConstexprConst == Int32Constant(5));
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check(kIntptrConst == 4);
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check(kSmiConst == 3);
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}
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@export
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macro TestLocalConstBindings() {
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const x: constexpr int31 = 3;
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const xSmi: Smi = x;
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{
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const x: Smi = x + FromConstexpr<Smi>(1);
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check(x == xSmi + 1);
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const xSmi: Smi = x;
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check(x == xSmi);
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check(x == 4);
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}
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check(xSmi == 3);
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check(x == xSmi);
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}
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struct TestStructA {
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indexes: FixedArray;
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i: Smi;
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k: Number;
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}
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struct TestStructB {
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x: TestStructA;
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y: Smi;
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}
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@export
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macro TestStruct1(i: TestStructA): Smi {
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return i.i;
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}
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@export
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macro TestStruct2(implicit context: Context)(): TestStructA {
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return TestStructA{
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indexes: UnsafeCast<FixedArray>(kEmptyFixedArray),
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i: 27,
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k: 31
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};
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}
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@export
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macro TestStruct3(implicit context: Context)(): TestStructA {
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let a: TestStructA =
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TestStructA{indexes: UnsafeCast<FixedArray>(kEmptyFixedArray), i: 13, k: 5};
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let _b: TestStructA = a;
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const c: TestStructA = TestStruct2();
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a.i = TestStruct1(c);
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a.k = a.i;
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let d: TestStructB;
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d.x = a;
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d = TestStructB{x: a, y: 7};
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let _e: TestStructA = d.x;
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let f: Smi = TestStructA{
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indexes: UnsafeCast<FixedArray>(kEmptyFixedArray),
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i: 27,
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k: 31
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}.i;
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f = TestStruct2().i;
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return a;
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}
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struct TestStructC {
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x: TestStructA;
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y: TestStructA;
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}
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@export
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macro TestStruct4(implicit context: Context)(): TestStructC {
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return TestStructC{x: TestStruct2(), y: TestStruct2()};
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}
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macro TestStructInLabel(implicit context: Context)(): never labels
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Foo(TestStructA) {
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goto Foo(TestStruct2());
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}
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@export // Silence unused warning.
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macro CallTestStructInLabel(implicit context: Context)() {
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try {
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TestStructInLabel() otherwise Foo;
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}
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label Foo(_s: TestStructA) {}
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}
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// This macro tests different versions of the for-loop where some parts
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// are (not) present.
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@export
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macro TestForLoop() {
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let sum: Smi = 0;
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for (let i: Smi = 0; i < 5; ++i) sum += i;
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check(sum == 10);
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sum = 0;
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let j: Smi = 0;
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for (; j < 5; ++j) sum += j;
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check(sum == 10);
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sum = 0;
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j = 0;
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for (; j < 5;) sum += j++;
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check(sum == 10);
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// Check that break works. No test expression.
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sum = 0;
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for (let i: Smi = 0;; ++i) {
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if (i == 5) break;
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sum += i;
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}
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check(sum == 10);
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sum = 0;
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j = 0;
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for (;;) {
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if (j == 5) break;
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sum += j;
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j++;
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}
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check(sum == 10);
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// The following tests are the same as above, but use continue to skip
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// index 3.
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sum = 0;
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for (let i: Smi = 0; i < 5; ++i) {
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if (i == 3) continue;
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sum += i;
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}
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check(sum == 7);
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sum = 0;
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j = 0;
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for (; j < 5; ++j) {
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if (j == 3) continue;
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sum += j;
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}
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check(sum == 7);
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sum = 0;
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j = 0;
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for (; j < 5;) {
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if (j == 3) {
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j++;
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continue;
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}
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sum += j;
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j++;
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}
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check(sum == 7);
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sum = 0;
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for (let i: Smi = 0;; ++i) {
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if (i == 3) continue;
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if (i == 5) break;
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sum += i;
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}
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check(sum == 7);
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sum = 0;
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j = 0;
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for (;;) {
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if (j == 3) {
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j++;
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continue;
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}
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if (j == 5) break;
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sum += j;
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j++;
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}
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check(sum == 7);
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j = 0;
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try {
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for (;;) {
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if (++j == 10) goto Exit;
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}
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}
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label Exit {
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check(j == 10);
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}
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// Test if we can handle uninitialized values on the stack.
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let _i: Smi;
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for (let j: Smi = 0; j < 10; ++j) {
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}
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}
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@export
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macro TestSubtyping(x: Smi) {
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const _foo: JSAny = x;
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}
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macro IncrementIfSmi<A: type>(x: A): A {
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typeswitch (x) {
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case (x: Smi): {
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return x + 1;
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}
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case (o: A): {
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return o;
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}
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}
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}
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|
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type NumberOrFixedArray = Number | FixedArray;
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macro TypeswitchExample(implicit context: Context)(x: NumberOrFixedArray):
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int32 {
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let result: int32 = 0;
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typeswitch (IncrementIfSmi(x)) {
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case (_x: FixedArray): {
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result = result + 1;
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}
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case (Number): {
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result = result + 2;
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}
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}
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result = result * 10;
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|
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typeswitch (IncrementIfSmi(x)) {
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case (x: Smi): {
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result = result + Convert<int32>(x);
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}
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case (a: FixedArray): {
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result = result + Convert<int32>(a.length);
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}
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case (_x: HeapNumber): {
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result = result + 7;
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}
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}
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|
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return result;
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}
|
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|
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@export
|
|
macro TestTypeswitch(implicit context: Context)() {
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check(TypeswitchExample(FromConstexpr<Smi>(5)) == 26);
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const a: FixedArray = AllocateZeroedFixedArray(3);
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check(TypeswitchExample(a) == 13);
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check(TypeswitchExample(FromConstexpr<Number>(0.5)) == 27);
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}
|
|
|
|
@export
|
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macro TestTypeswitchAsanLsanFailure(implicit context: Context)(obj: Object) {
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|
typeswitch (obj) {
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case (_o: Smi): {
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}
|
|
case (_o: JSTypedArray): {
|
|
}
|
|
case (_o: JSReceiver): {
|
|
}
|
|
case (_o: HeapObject): {
|
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}
|
|
}
|
|
}
|
|
|
|
macro ExampleGenericOverload<A: type>(o: Object): A {
|
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return o;
|
|
}
|
|
macro ExampleGenericOverload<A: type>(o: Smi): A {
|
|
return o + 1;
|
|
}
|
|
|
|
@export
|
|
macro TestGenericOverload(implicit context: Context)() {
|
|
const xSmi: Smi = 5;
|
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const xObject: Object = xSmi;
|
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check(ExampleGenericOverload<Smi>(xSmi) == 6);
|
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check(UnsafeCast<Smi>(ExampleGenericOverload<Object>(xObject)) == 5);
|
|
}
|
|
|
|
@export
|
|
macro TestEquality(implicit context: Context)() {
|
|
const notEqual: bool =
|
|
AllocateHeapNumberWithValue(0.5) != AllocateHeapNumberWithValue(0.5);
|
|
check(!notEqual);
|
|
const equal: bool =
|
|
AllocateHeapNumberWithValue(0.5) == AllocateHeapNumberWithValue(0.5);
|
|
check(equal);
|
|
}
|
|
|
|
@export
|
|
macro TestOrAnd(x: bool, y: bool, z: bool): bool {
|
|
return x || y && z ? true : false;
|
|
}
|
|
|
|
@export
|
|
macro TestAndOr(x: bool, y: bool, z: bool): bool {
|
|
return x && y || z ? true : false;
|
|
}
|
|
|
|
@export
|
|
macro TestLogicalOperators() {
|
|
check(TestAndOr(true, true, true));
|
|
check(TestAndOr(true, true, false));
|
|
check(TestAndOr(true, false, true));
|
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check(!TestAndOr(true, false, false));
|
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check(TestAndOr(false, true, true));
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|
check(!TestAndOr(false, true, false));
|
|
check(TestAndOr(false, false, true));
|
|
check(!TestAndOr(false, false, false));
|
|
check(TestOrAnd(true, true, true));
|
|
check(TestOrAnd(true, true, false));
|
|
check(TestOrAnd(true, false, true));
|
|
check(TestOrAnd(true, false, false));
|
|
check(TestOrAnd(false, true, true));
|
|
check(!TestOrAnd(false, true, false));
|
|
check(!TestOrAnd(false, false, true));
|
|
check(!TestOrAnd(false, false, false));
|
|
}
|
|
|
|
@export
|
|
macro TestCall(i: Smi): Smi labels A {
|
|
if (i < 5) return i;
|
|
goto A;
|
|
}
|
|
|
|
@export
|
|
macro TestOtherwiseWithCode1() {
|
|
let v: Smi = 0;
|
|
let s: Smi = 1;
|
|
try {
|
|
TestCall(10) otherwise goto B(++s);
|
|
}
|
|
label B(v1: Smi) {
|
|
v = v1;
|
|
}
|
|
assert(v == 2);
|
|
}
|
|
|
|
@export
|
|
macro TestOtherwiseWithCode2() {
|
|
let s: Smi = 0;
|
|
for (let i: Smi = 0; i < 10; ++i) {
|
|
TestCall(i) otherwise break;
|
|
++s;
|
|
}
|
|
assert(s == 5);
|
|
}
|
|
|
|
@export
|
|
macro TestOtherwiseWithCode3() {
|
|
let s: Smi = 0;
|
|
for (let i: Smi = 0; i < 10; ++i) {
|
|
s += TestCall(i) otherwise break;
|
|
}
|
|
assert(s == 10);
|
|
}
|
|
|
|
@export
|
|
macro TestForwardLabel() {
|
|
try {
|
|
goto A;
|
|
}
|
|
label A {
|
|
goto B(5);
|
|
}
|
|
label B(b: Smi) {
|
|
assert(b == 5);
|
|
}
|
|
}
|
|
|
|
@export
|
|
macro TestQualifiedAccess(implicit context: Context)() {
|
|
const s: Smi = 0;
|
|
check(!Is<JSArray>(s));
|
|
}
|
|
|
|
@export
|
|
macro TestCatch1(implicit context: Context)(): Smi {
|
|
let r: Smi = 0;
|
|
try {
|
|
ThrowTypeError(kInvalidArrayLength);
|
|
} catch (_e) {
|
|
r = 1;
|
|
return r;
|
|
}
|
|
}
|
|
|
|
@export
|
|
macro TestCatch2Wrapper(implicit context: Context)(): never {
|
|
ThrowTypeError(kInvalidArrayLength);
|
|
}
|
|
|
|
@export
|
|
macro TestCatch2(implicit context: Context)(): Smi {
|
|
let r: Smi = 0;
|
|
try {
|
|
TestCatch2Wrapper();
|
|
} catch (_e) {
|
|
r = 2;
|
|
return r;
|
|
}
|
|
}
|
|
|
|
@export
|
|
macro TestCatch3WrapperWithLabel(implicit context: Context)():
|
|
never labels _Abort {
|
|
ThrowTypeError(kInvalidArrayLength);
|
|
}
|
|
|
|
@export
|
|
macro TestCatch3(implicit context: Context)(): Smi {
|
|
let r: Smi = 0;
|
|
try {
|
|
TestCatch3WrapperWithLabel() otherwise Abort;
|
|
}
|
|
label Abort {
|
|
return -1;
|
|
}
|
|
catch (_e) {
|
|
r = 2;
|
|
return r;
|
|
}
|
|
}
|
|
|
|
// This test doesn't actually test the functionality of iterators,
|
|
// it's only purpose is to make sure tha the CSA macros in the
|
|
// IteratorBuiltinsAssembler match the signatures provided in
|
|
// iterator.tq.
|
|
@export
|
|
macro TestIterator(implicit context: Context)(o: JSReceiver, map: Map) {
|
|
try {
|
|
const t1: JSAny = iterator::GetIteratorMethod(o);
|
|
const t2: iterator::IteratorRecord = iterator::GetIterator(o);
|
|
|
|
const _t3: JSAny = iterator::IteratorStep(t2) otherwise Fail;
|
|
const _t4: JSAny = iterator::IteratorStep(t2, map) otherwise Fail;
|
|
|
|
const t5: JSAny = iterator::IteratorValue(o);
|
|
const _t6: JSAny = iterator::IteratorValue(o, map);
|
|
|
|
const _t7: JSArray = iterator::IterableToList(t1, t1);
|
|
|
|
iterator::IteratorCloseOnException(t2, t5);
|
|
}
|
|
label Fail {}
|
|
}
|
|
|
|
@export
|
|
macro TestFrame1(implicit context: Context)() {
|
|
const f: Frame = LoadFramePointer();
|
|
const frameType: FrameType =
|
|
Cast<FrameType>(f.context_or_frame_type) otherwise unreachable;
|
|
assert(frameType == STUB_FRAME);
|
|
assert(f.caller == LoadParentFramePointer());
|
|
typeswitch (f) {
|
|
case (_f: StandardFrame): {
|
|
unreachable;
|
|
}
|
|
case (_f: ArgumentsAdaptorFrame): {
|
|
unreachable;
|
|
}
|
|
case (_f: StubFrame): {
|
|
}
|
|
}
|
|
}
|
|
|
|
@export
|
|
macro TestNew(implicit context: Context)() {
|
|
const f: JSArray = NewJSArray();
|
|
check(f.IsEmpty());
|
|
f.length = 0;
|
|
}
|
|
|
|
struct TestInner {
|
|
SetX(newValue: int32) {
|
|
this.x = newValue;
|
|
}
|
|
GetX(): int32 {
|
|
return this.x;
|
|
}
|
|
x: int32;
|
|
y: int32;
|
|
}
|
|
|
|
struct TestOuter {
|
|
a: int32;
|
|
b: TestInner;
|
|
c: int32;
|
|
}
|
|
|
|
@export
|
|
macro TestStructConstructor(implicit context: Context)() {
|
|
// Test default constructor
|
|
let a: TestOuter = TestOuter{a: 5, b: TestInner{x: 6, y: 7}, c: 8};
|
|
check(a.a == 5);
|
|
check(a.b.x == 6);
|
|
check(a.b.y == 7);
|
|
check(a.c == 8);
|
|
a.b.x = 1;
|
|
check(a.b.x == 1);
|
|
a.b.SetX(2);
|
|
check(a.b.x == 2);
|
|
check(a.b.GetX() == 2);
|
|
}
|
|
|
|
class InternalClass extends Struct {
|
|
Flip() labels NotASmi {
|
|
const tmp = Cast<Smi>(this.b) otherwise NotASmi;
|
|
this.b = this.a;
|
|
this.a = tmp;
|
|
}
|
|
a: Smi;
|
|
b: Number;
|
|
}
|
|
|
|
macro NewInternalClass(x: Smi): InternalClass {
|
|
return new InternalClass{a: x, b: x + 1};
|
|
}
|
|
|
|
@export
|
|
macro TestInternalClass(implicit context: Context)() {
|
|
const o = NewInternalClass(5);
|
|
o.Flip() otherwise unreachable;
|
|
check(o.a == 6);
|
|
check(o.b == 5);
|
|
}
|
|
|
|
struct StructWithConst {
|
|
TestMethod1(): int32 {
|
|
return this.b;
|
|
}
|
|
TestMethod2(): Object {
|
|
return this.a;
|
|
}
|
|
a: Object;
|
|
const b: int32;
|
|
}
|
|
|
|
@export
|
|
macro TestConstInStructs() {
|
|
const x = StructWithConst{a: Null, b: 1};
|
|
let y = StructWithConst{a: Null, b: 1};
|
|
y.a = Undefined;
|
|
const _copy = x;
|
|
|
|
check(x.TestMethod1() == 1);
|
|
check(x.TestMethod2() == Null);
|
|
}
|
|
|
|
struct TestIterator {
|
|
Next(): Object labels NoMore {
|
|
if (this.count-- == 0) goto NoMore;
|
|
return TheHole;
|
|
}
|
|
count: Smi;
|
|
}
|
|
|
|
@export
|
|
macro TestNewFixedArrayFromSpread(implicit context: Context)(): Object {
|
|
let i = TestIterator{count: 5};
|
|
return new FixedArray{map: kFixedArrayMap, length: 5, objects: ...i};
|
|
}
|
|
|
|
class SmiPair extends Struct {
|
|
GetA():&Smi {
|
|
return & this.a;
|
|
}
|
|
a: Smi;
|
|
b: Smi;
|
|
}
|
|
|
|
macro Swap<T: type>(a:&T, b:&T) {
|
|
const tmp = * a;
|
|
* a = * b;
|
|
* b = tmp;
|
|
}
|
|
|
|
@export
|
|
macro TestReferences() {
|
|
const array = new SmiPair{a: 7, b: 2};
|
|
const ref:&Smi = & array.a;
|
|
* ref = 3 + * ref;
|
|
-- * ref;
|
|
Swap(& array.b, array.GetA());
|
|
check(array.a == 2);
|
|
check(array.b == 9);
|
|
}
|
|
|
|
@export
|
|
macro TestSlices() {
|
|
const it = TestIterator{count: 3};
|
|
const a = new FixedArray{map: kFixedArrayMap, length: 3, objects: ...it};
|
|
check(a.length == 3);
|
|
|
|
const oneTwoThree = Convert<Smi>(123);
|
|
a.objects[0] = oneTwoThree;
|
|
const firstRef:&Object = & a.objects[0];
|
|
check(TaggedEqual(* firstRef, oneTwoThree));
|
|
|
|
const slice: torque_internal::Slice<Object> = & a.objects;
|
|
const firstRefAgain:&Object = slice.TryAtIndex(0) otherwise unreachable;
|
|
check(TaggedEqual(* firstRefAgain, oneTwoThree));
|
|
|
|
const threeTwoOne = Convert<Smi>(321);
|
|
* firstRefAgain = threeTwoOne;
|
|
check(TaggedEqual(a.objects[0], threeTwoOne));
|
|
|
|
// *slice; // error, not allowed
|
|
// a.objects; // error, not allowed
|
|
// a.objects = slice; // error, not allowed
|
|
|
|
// TODO(gsps): Currently errors, but should be allowed:
|
|
// const _sameSlice: torque_internal::Slice<Object> = &(*slice);
|
|
// (*slice)[0] : Smi
|
|
}
|
|
|
|
@export
|
|
macro TestSliceEnumeration(implicit context: Context)(): Undefined {
|
|
const fixedArray: FixedArray = AllocateZeroedFixedArray(3);
|
|
for (let i: intptr = 0; i < 3; i++) {
|
|
check(UnsafeCast<Smi>(fixedArray.objects[i]) == 0);
|
|
fixedArray.objects[i] = Convert<Smi>(i) + 3;
|
|
}
|
|
|
|
let slice = & fixedArray.objects;
|
|
for (let i: intptr = 0; i < slice.length; i++) {
|
|
let ref = slice.TryAtIndex(i) otherwise unreachable;
|
|
const value = UnsafeCast<Smi>(* ref);
|
|
check(value == Convert<Smi>(i) + 3);
|
|
* ref = value + 4;
|
|
}
|
|
|
|
let it = slice.Iterator();
|
|
let count: Smi = 0;
|
|
while (true) {
|
|
let ref = it.Next() otherwise break;
|
|
const value = UnsafeCast<Smi>(* ref);
|
|
check(value == count + 7);
|
|
count++;
|
|
}
|
|
check(count == 3);
|
|
check(it.Empty());
|
|
|
|
return Undefined;
|
|
}
|
|
|
|
@export
|
|
macro TestStaticAssert() {
|
|
StaticAssert(1 + 2 == 3);
|
|
}
|
|
|
|
class SmiBox extends Struct {
|
|
value: Smi;
|
|
unrelated: Smi;
|
|
}
|
|
|
|
builtin NewSmiBox(implicit context: Context)(value: Smi): SmiBox {
|
|
return new SmiBox{value, unrelated: 0};
|
|
}
|
|
|
|
@export
|
|
macro TestLoadEliminationFixed(implicit context: Context)() {
|
|
const box = NewSmiBox(123);
|
|
const v1 = box.value;
|
|
box.unrelated = 999;
|
|
const v2 = (box.unrelated == 0) ? box.value : box.value;
|
|
StaticAssert(TaggedEqual(v1, v2));
|
|
|
|
box.value = 11;
|
|
const v3 = box.value;
|
|
const eleven: Smi = 11;
|
|
StaticAssert(TaggedEqual(v3, eleven));
|
|
}
|
|
|
|
@export
|
|
macro TestLoadEliminationVariable(implicit context: Context)() {
|
|
const a = UnsafeCast<FixedArray>(kEmptyFixedArray);
|
|
const box = NewSmiBox(1);
|
|
const v1 = a.objects[box.value];
|
|
const u1 = a.objects[box.value + 2];
|
|
const v2 = a.objects[box.value];
|
|
const u2 = a.objects[box.value + 2];
|
|
StaticAssert(TaggedEqual(v1, v2));
|
|
StaticAssert(TaggedEqual(u1, u2));
|
|
}
|
|
|
|
@export
|
|
macro TestRedundantArrayElementCheck(implicit context: Context)(): Smi {
|
|
const a = kEmptyFixedArray;
|
|
for (let i: Smi = 0; i < a.length; i++) {
|
|
if (a.objects[i] == TheHole) {
|
|
if (a.objects[i] == TheHole) {
|
|
return -1;
|
|
} else {
|
|
StaticAssert(false);
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
@export
|
|
macro TestRedundantSmiCheck(implicit context: Context)(): Smi {
|
|
const a = kEmptyFixedArray;
|
|
const x = a.objects[1];
|
|
typeswitch (x) {
|
|
case (Smi): {
|
|
Cast<Smi>(x) otherwise VerifiedUnreachable();
|
|
return -1;
|
|
}
|
|
case (Object): {
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
struct SBox<T: type> {
|
|
value: T;
|
|
}
|
|
|
|
@export
|
|
macro TestGenericStruct1(): intptr {
|
|
const i: intptr = 123;
|
|
let box = SBox{value: i};
|
|
let boxbox: SBox<SBox<intptr>> = SBox{value: box};
|
|
check(box.value == 123);
|
|
boxbox.value.value *= 2;
|
|
check(boxbox.value.value == 246);
|
|
return boxbox.value.value;
|
|
}
|
|
|
|
struct TestTuple<T1: type, T2: type> {
|
|
const fst: T1;
|
|
const snd: T2;
|
|
}
|
|
|
|
macro TupleSwap<T1: type, T2: type>(tuple: TestTuple<T1, T2>):
|
|
TestTuple<T2, T1> {
|
|
return TestTuple{fst: tuple.snd, snd: tuple.fst};
|
|
}
|
|
|
|
@export
|
|
macro TestGenericStruct2():
|
|
TestTuple<TestTuple<intptr, Smi>, TestTuple<Smi, intptr>> {
|
|
const intptrAndSmi = TestTuple<intptr, Smi>{fst: 1, snd: 2};
|
|
const smiAndIntptr = TupleSwap(intptrAndSmi);
|
|
check(intptrAndSmi.fst == smiAndIntptr.snd);
|
|
check(intptrAndSmi.snd == smiAndIntptr.fst);
|
|
const tupleTuple =
|
|
TestTuple<TestTuple<intptr, Smi>>{fst: intptrAndSmi, snd: smiAndIntptr};
|
|
return tupleTuple;
|
|
}
|
|
|
|
macro BranchAndWriteResult(x: Smi, box: SmiBox): bool {
|
|
if (x > 5 || x < 0) {
|
|
box.value = 1;
|
|
return true;
|
|
} else {
|
|
box.value = 2;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
@export
|
|
macro TestBranchOnBoolOptimization(implicit context: Context)(input: Smi) {
|
|
const box = NewSmiBox(1);
|
|
// If the two branches get combined into one, we should be able to determine
|
|
// the value of {box} statically.
|
|
if (BranchAndWriteResult(input, box)) {
|
|
StaticAssert(box.value == 1);
|
|
} else {
|
|
StaticAssert(box.value == 2);
|
|
}
|
|
}
|
|
|
|
}
|