| /* |
| * Copyright (c) 2002, 2018, 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 |
| * |
| * @summary converted from VM Testbase runtime/jbe/constprop/constprop01. |
| * VM Testbase keywords: [quick, runtime] |
| * |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @run main/othervm vm.compiler.jbe.constprop.constprop01.constprop01 |
| */ |
| |
| package vm.compiler.jbe.constprop.constprop01; |
| |
| // constprop01.java |
| |
| /* Tests the Constant Propagation optimization, including calls to math functions |
| with constant arguments. |
| */ |
| |
| class Starter { |
| int global; |
| int gl_unopt; |
| int gl_opt; |
| int a_one; |
| int zero; |
| |
| Starter() { |
| global = 1; |
| gl_unopt = 1; |
| gl_opt = 1; |
| a_one = 1; |
| zero = global - a_one; // really a zero, but compiler doesn't know |
| } |
| |
| void increment_unopt() { |
| gl_unopt += a_one; |
| } |
| |
| void increment_opt() { |
| gl_opt += a_one; |
| } |
| } |
| |
| |
| public class constprop01 { |
| static int err = 0; |
| static final int is = 16386; |
| double a, b, c, d, x, z; |
| double a_opt, b_opt, c_opt, d_opt, x_opt, z_opt; |
| static Starter st = new Starter(); |
| |
| public static void main(String args[]) { |
| constprop01 cpr = new constprop01(); |
| |
| cpr.un_optimized(); |
| cpr.hand_optimized(); |
| if (st.gl_unopt != st.gl_opt) { |
| System.out.println(">>Bad output: gl_unopt is not equal to gl_optimized. gl_unopt = "+st.gl_unopt+"; gl_optimized = "+st.gl_opt); |
| err = 1; |
| } |
| if (cpr.a != cpr.a_opt) { |
| System.out.println(">>Bad output: a_unoptimized="+cpr.a+"; a_optimized="+cpr.a_opt); |
| err = 1; |
| } |
| if (cpr.b != cpr.b_opt) { |
| System.out.println(">>Bad output: b_unoptimized="+cpr.b+"; b_optimized="+cpr.b_opt); |
| err = 1; |
| } |
| if (cpr.c != cpr.c_opt) { |
| System.out.println(">>Bad output: c_unoptimized="+cpr.c+"; c_optimized="+cpr.c_opt); |
| err = 1; |
| } |
| if (cpr.d != cpr.d_opt) { |
| System.out.println(">>Bad output: d_unoptimized="+cpr.d+"; d_optimized="+cpr.d_opt); |
| err = 1; |
| } |
| if (cpr.x != cpr.x_opt) { |
| System.out.println(">>Bad output: x_unoptimized="+cpr.x+"; x_optimized="+cpr.x_opt); |
| err = 1; |
| } |
| if (cpr.z != cpr.z_opt) { |
| System.out.println(">>Bad output: z_unoptimized="+cpr.z+"; z_optimized="+cpr.z_opt); |
| err = 1; |
| } |
| |
| if (err == 0) { |
| System.out.println("Test constprop01 Passed."); |
| } else { |
| throw new Error("Test constprop01 Failed."); |
| } |
| } |
| |
| void un_optimized() { |
| int k, m; |
| |
| a = st.a_one; |
| c = st.a_one; |
| d = st.a_one; |
| x = st.a_one; |
| |
| // example 1 |
| for(k = 0; k < is; k++) { |
| st.increment_unopt(); |
| } |
| System.out.println("gl_unopt = "+st.gl_unopt+" after incrementing it 16386 times."); |
| st.gl_unopt -= 16386; |
| System.out.println("gl_unopt = "+st.gl_unopt+" after subtracting 16386."); |
| |
| // example 2 |
| m = 32769; |
| b = c * m; |
| System.out.println("c = "+c+"; m = 2; b = "+b); |
| |
| // example 3 |
| a = Math.E / (a * d * Math.pow(1/Math.PI, 15)); |
| c = 2 * Math.E * d; |
| d = 2 * Math.E * a; |
| System.out.println("e = "+Math.E+"; d = "+d+"; a = "+a); |
| |
| // example 4 |
| System.out.println("x = "+x); |
| x += m; |
| System.out.println("x = "+x+"; m = "+m); |
| |
| // example 5 |
| z = Math.pow(1/Math.PI, 15) + st.zero/Math.PI; |
| System.out.println("z = "+z); |
| } |
| |
| |
| void hand_optimized() { |
| int k, m; |
| |
| a_opt = st.a_one; |
| c_opt = st.a_one; |
| d_opt = st.a_one; |
| x_opt = st.a_one; |
| |
| // example 1 |
| for(k = 0; k < 16386; k++) { |
| st.increment_opt(); |
| } |
| System.out.println("gl_opt = "+st.gl_opt+" after incrementing it 16386 times."); |
| st.gl_opt -= 16386; |
| System.out.println("gl_opt = "+st.gl_opt+" after subtracting 16386."); |
| |
| // example 2 |
| m = 32769; |
| b_opt = c_opt * 32769; |
| System.out.println("c_opt = "+c_opt+"; b_opt = "+b_opt); |
| |
| // example 3 |
| double e = 2.7182818284590452354; |
| a_opt = 2.7182818284590452354 / (a_opt * d_opt * Math.pow(0.3183098861837907, 15)); |
| c_opt = 2 * 2.7182818284590452354 * d_opt; |
| d_opt = 2 * 2.7182818284590452354 * a_opt; |
| System.out.println("e = "+2.7182818284590452354+"; d_opt = "+d_opt+"; a_opt = "+a_opt); |
| |
| // example 4 |
| System.out.println("x_opt = "+x_opt); |
| x_opt += 32769; |
| System.out.println("x_opt = "+x_opt+"; m = "+m); |
| |
| // example 5 |
| z_opt = 3.4894092627910365E-8 + 0/3.14159265358979323846; |
| System.out.println("z_opt = "+z_opt); |
| } |
| } |