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deps/v8/test/mjsunit/compiler/optimize_max.js
69 строк
2 KB
Ali Ijaz Sheikh
deps: upgrade V8 to 4.5.103.24
06 сен 2015, 14:38
06 сен 2015, 14:38
9fddd83
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// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --allow-natives-syntax var DOUBLE_ZERO = %AllocateHeapNumber(); var SMI_ZERO = 0; var MINUS_ZERO = -0.0; function max1(a, b) { a = +a; b = +b; return +(a < b ? b : a); } function max2(a, b) { a = +a; b = +b; return a < b ? b : a; } for (f of [max1, max2]) { for (var i = 0; i < 5; i++) { assertEquals(4, f(3, 4)); assertEquals(4, f(4, 3)); assertEquals(4.3, f(3.3, 4.3)); assertEquals(4.4, f(4.4, 3.4)); assertEquals(Infinity, 1 / f(SMI_ZERO, MINUS_ZERO)); assertEquals(Infinity, 1 / f(DOUBLE_ZERO, MINUS_ZERO)); assertEquals(-Infinity, 1 / f(MINUS_ZERO, SMI_ZERO)); assertEquals(-Infinity, 1 / f(MINUS_ZERO, DOUBLE_ZERO)); assertEquals(NaN, f(NaN, NaN)); assertEquals(3, f(3, NaN)); assertEquals(NaN, f(NaN, 3)); } } function max3(a, b) { a = +a; b = +b; return +(a > b ? a : b); } function max4(a, b) { a = +a; b = +b; return a > b ? a : b; } for (f of [max3, max4]) { for (var i = 0; i < 5; i++) { assertEquals(4, f(3, 4)); assertEquals(4, f(4, 3)); assertEquals(4.3, f(3.3, 4.3)); assertEquals(4.4, f(4.4, 3.4)); assertEquals(-Infinity, 1 / f(SMI_ZERO, MINUS_ZERO)); assertEquals(-Infinity, 1 / f(DOUBLE_ZERO, MINUS_ZERO)); assertEquals(Infinity, 1 / f(MINUS_ZERO, SMI_ZERO)); assertEquals(Infinity, 1 / f(MINUS_ZERO, DOUBLE_ZERO)); assertEquals(NaN, f(NaN, NaN)); assertEquals(NaN, f(3, NaN)); assertEquals(3, f(NaN, 3)); } }