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Add mjsunit tests for optimization of float min/max.

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R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1199053011

Cr-Commit-Position: refs/heads/master@{#29239}
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titzer 2015-06-23 10:26:18 -07:00 committed by Commit bot
parent 8196c28a94
commit 2c979b96f1
2 changed files with 138 additions and 0 deletions
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69
test/mjsunit/compiler/optimize_max.js Normal file
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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));
}
}

69
test/mjsunit/compiler/optimize_min.js Normal file
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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 min1(a, b) {
a = +a;
b = +b;
return +(a < b ? a : b);
}
function min2(a, b) {
a = +a;
b = +b;
return a < b ? a : b;
}
for (f of [min1, min2]) {
for (var i = 0; i < 5; i++) {
assertEquals(3, f(3, 4));
assertEquals(3, f(4, 3));
assertEquals(3.3, f(3.3, 4));
assertEquals(3.4, f(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));
}
}
function min3(a, b) {
a = +a;
b = +b;
return +(a > b ? b : a);
}
function min4(a, b) {
a = +a;
b = +b;
return a > b ? b : a;
}
for (f of [min3, min4]) {
for (var i = 0; i < 5; i++) {
assertEquals(3, f(3, 4));
assertEquals(3, f(4, 3));
assertEquals(3.3, f(3.3, 4));
assertEquals(3.4, f(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));
}
}