0d59772b2b
for the special case where the same register is used as both left and right input. Review URL: https://codereview.chromium.org/1695283002 Cr-Commit-Position: refs/heads/master@{#33996}
67 lines
1.2 KiB
JavaScript
67 lines
1.2 KiB
JavaScript
// Copyright 2016 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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var a = new Float64Array(4);
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a[2] *= -1;
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a[3] *= -1;
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assertEquals(0, a[0]);
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assertEquals(0, a[1]);
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assertEquals(-0, a[2]);
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assertEquals(-0, a[3]);
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function f1() {
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var z = a[0];
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// Same register.
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assertEquals(0, Math.min(z, z));
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}
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function f2() {
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// Different registers.
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assertEquals(0, Math.min(a[0], a[1]));
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}
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function f3() {
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// Zero and minus zero.
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assertEquals(-0, Math.min(a[1], a[2]));
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}
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function f4() {
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// Zero and minus zero, reversed order.
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assertEquals(-0, Math.min(a[2], a[1]));
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}
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function f5() {
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// Minus zero, same register.
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var m_z = a[2];
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assertEquals(-0, Math.min(m_z, m_z));
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}
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function f6() {
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// Minus zero, different registers.
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assertEquals(-0, Math.min(a[2], a[3]));
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}
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for (var i = 0; i < 3; i++) {
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f1();
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f2();
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f3();
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f4();
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f5();
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f6();
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}
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%OptimizeFunctionOnNextCall(f1);
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%OptimizeFunctionOnNextCall(f2);
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%OptimizeFunctionOnNextCall(f3);
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%OptimizeFunctionOnNextCall(f4);
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%OptimizeFunctionOnNextCall(f5);
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%OptimizeFunctionOnNextCall(f6);
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f1();
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f2();
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f3();
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f4();
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f5();
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f6();
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