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9b4bf7de6c
PR-URL: https://github.com/nodejs/node/pull/23423 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Myles Borins <myles.borins@gmail.com>
92 lines
2.4 KiB
JavaScript
92 lines
2.4 KiB
JavaScript
// 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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// Flags: --allow-natives-syntax
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// Test NumberAdd with PositiveSafeInteger -> PositiveSafeInteger (as Tagged).
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(function() {
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function foo(x) {
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const i = x ? 0xFFFFFFFF : 0;
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return i + 1;
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}
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assertEquals(0x000000001, foo(false));
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assertEquals(0x000000001, foo(false));
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assertEquals(0x100000000, foo(true));
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assertEquals(0x100000000, foo(true));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(0x000000001, foo(false));
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assertEquals(0x100000000, foo(true));
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})();
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// Test NumberAdd with SafeInteger -> SafeInteger (as Tagged).
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(function() {
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function foo(x) {
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const i = x ? 0xFFFFFFFF : -1;
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return i + 1;
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}
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assertEquals(0x000000000, foo(false));
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assertEquals(0x000000000, foo(false));
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assertEquals(0x100000000, foo(true));
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assertEquals(0x100000000, foo(true));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(0x000000000, foo(false));
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assertEquals(0x100000000, foo(true));
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})();
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// NumberAdd: Smi x Unsigned32 -> SafeInteger (as Float64).
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(function() {
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const a = new Float64Array(1);
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function foo(o) {
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a[0] = o.x + 0xFFFFFFFF;
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return a[0];
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}
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assertEquals(0x0FFFFFFFF, foo({x:0}));
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assertEquals(0x100000000, foo({x:1}));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(0x100000000, foo({x:1}));
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})();
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// NumberAdd: Smi x Unsigned32 -> SafeInteger (as TaggedSigned).
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(function() {
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function foo(o) {
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return {x: Math.floor((o.x + 11123456789) + -11123456788)}.x;
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}
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assertEquals(1, foo({x:0}));
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assertEquals(2, foo({x:1}));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(2, foo({x:1}));
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})();
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// NumberSubtract: Unsigned32 x Unsigned32 -> SafeInteger (as Word32).
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(function() {
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function foo(a, i) {
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i = ((i >>> 0)) - 0xFFFFFFFF;
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return a[i];
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}
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assertEquals(1, foo([1], 0xFFFFFFFF));
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assertEquals(2, foo([2], 0xFFFFFFFF));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(3, foo([3], 0xFFFFFFFF));
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})();
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// Test that the Deoptimizer can handle Word64 properly.
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(function() {
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function foo(b) {
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const i = ((b >>> 0)) - 0xFFFFFFFF;
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%DeoptimizeFunction(foo);
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return i;
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}
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assertEquals(0, foo(0xFFFFFFFF));
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assertEquals(0, foo(0xFFFFFFFF));
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(0, foo(0xFFFFFFFF));
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})();
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