Mercurial > hg > graal-jvmci-8
diff test/compiler/intrinsics/mathexact/MulExactIRepeatTest.java @ 12972:59e8ad757e19
8026844: Various Math functions needs intrinsification
Reviewed-by: kvn, twisti
author | rbackman |
---|---|
date | Fri, 18 Oct 2013 10:41:56 +0200 |
parents | |
children | 9949533a8623 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/intrinsics/mathexact/MulExactIRepeatTest.java Fri Oct 18 10:41:56 2013 +0200 @@ -0,0 +1,109 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8026844 + * @summary Test repeating multiplyExact + * @compile MulExactIRepeatTest.java Verify.java + * @run main MulExactIRepeatTest + * + */ + +public class MulExactIRepeatTest { + public static void main(String[] args) { + runTest(new Verify.MulExactI()); + } + + public static int nonExact(int x, int y, Verify.BinaryMethod method) { + int result = method.unchecked(x, y); + result += method.unchecked(x, y); + result += method.unchecked(x, y); + result += method.unchecked(x, y); + return result; + } + + public static void runTest(Verify.BinaryMethod method) { + java.util.Random rnd = new java.util.Random(); + for (int i = 0; i < 50000; ++i) { + int x = Integer.MAX_VALUE - 10; + int y = Integer.MAX_VALUE - 10 + rnd.nextInt(5); + + int c = rnd.nextInt() / 10; + int d = rnd.nextInt(9); + + int a = catchingExact(x, y, method); + + if (a != 36) { + throw new RuntimeException("a != 36 : " + a); + } + + int b = nonExact(c, d, method); + int n = exact(c, d, method); + + + if (n != b) { + throw new RuntimeException("n != b : " + n + " != " + b); + } + } + } + + public static int exact(int x, int y, Verify.BinaryMethod method) { + int result = 0; + result += method.checkMethod(x, y); + result += method.checkMethod(x, y); + result += method.checkMethod(x, y); + result += method.checkMethod(x, y); + return result; + } + + public static int catchingExact(int x, int y, Verify.BinaryMethod method) { + int result = 0; + try { + result += 5; + result = method.checkMethod(x, y); + } catch (ArithmeticException e) { + result += 1; + } + try { + result += 6; + + result += method.checkMethod(x, y); + } catch (ArithmeticException e) { + result += 2; + } + try { + result += 7; + result += method.checkMethod(x, y); + } catch (ArithmeticException e) { + result += 3; + } + try { + result += 8; + result += method.checkMethod(x, y); + } catch (ArithmeticException e) { + result += 4; + } + return result; + } +}