| /* |
| * Copyright (c) 2021, 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 8268366 |
| * @run main/othervm -Xbatch -XX:+TieredCompilation -XX:TieredStopAtLevel=1 |
| * compiler.c1.TestLinearScanHasFPURegisters |
| */ |
| |
| package compiler.c1; |
| |
| public class TestLinearScanHasFPURegisters { |
| void test(String[] args) { |
| String arr[] = new String[4]; |
| float f = -1; |
| try { |
| arr[0] = "-1"; // exception edge 1 with value -1 |
| if (args.length > 1) { |
| f = 42; |
| arr[1] = "42"; // exception edge 2 with value 42 |
| } |
| } catch (Exception e) { |
| // exception handler block with incoming phi for "f" |
| for (int i = 0; i < 1; ++i) { |
| f = f; // generates bytecodes, but no JIT IR |
| } |
| } |
| } |
| public static void main(String[] args) { |
| TestLinearScanHasFPURegisters t = new TestLinearScanHasFPURegisters(); |
| for (int i = 0; i < 1000; ++i) { |
| t.test(args); |
| } |
| } |
| } |
