| /* |
| * Copyright (c) 2019, 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. |
| * |
| */ |
| |
| public class compiler/c1/TestGotoIf version 52:0 { |
| public Field f1:"I"; |
| public Field f2:"I"; |
| public static Field i:"I"; |
| |
| Method "<init>":"()V" stack 1 locals 1 { |
| aload_0; |
| invokespecial Method java/lang/Object."<init>":"()V"; |
| return; |
| } |
| |
| public Method test1:"()I" stack 3 locals 1 { |
| aload_0; |
| getfield Field f1:"I"; |
| aload_0; |
| getfield Field f2:"I"; |
| iconst_1; |
| isub; |
| // Without the fix, if got eliminated by CEE |
| if_icmpgt Null; |
| iconst_1; |
| Return: stack_frame_type stack1; |
| stack_map int; |
| ireturn; |
| Null: stack_frame_type same; |
| iconst_0; |
| goto Return; // Backbranch (t_goto) with safepoint |
| } |
| |
| public Method test2:"()I" stack 3 locals 1 { |
| aload_0; |
| getfield Field f1:"I"; |
| aload_0; |
| getfield Field f2:"I"; |
| iconst_1; |
| isub; |
| goto Skip; |
| Return: stack_frame_type full; |
| stack_map int; |
| ireturn; |
| Skip: stack_frame_type full; |
| stack_map int, int; |
| // Without the fix, if got eliminated by CEE |
| if_icmpgt Null; |
| iconst_1; |
| goto Return; // Backbranch (f_goto) with safepoint |
| Null: stack_frame_type full; |
| stack_map; |
| iconst_0; |
| goto Return; // Backbranch (t_goto) with safepoint |
| } |
| |
| public Method test3:"()I" stack 3 locals 1 { |
| aload_0; |
| getfield Field f1:"I"; |
| aload_0; |
| getfield Field f2:"I"; |
| iconst_1; |
| isub; |
| goto Skip; |
| Return: stack_frame_type full; |
| stack_map int; |
| ireturn; |
| Null: stack_frame_type full; |
| stack_map; |
| iconst_0; |
| goto Return; // Backbranch (t_goto) with safepoint |
| Skip: stack_frame_type full; |
| stack_map int, int; |
| // If will be eliminated by CEE |
| if_icmpgt Null; // Backbranch (if) with safepoint |
| iconst_1; |
| goto Return; // Backbranch (f_goto) with safepoint |
| } |
| |
| public Method test4:"()I" stack 3 locals 1 { |
| aload_0; |
| getfield Field f1:"I"; |
| aload_0; |
| getfield Field f2:"I"; |
| iconst_1; |
| isub; |
| goto Skip; |
| Null: stack_frame_type full; |
| stack_map; |
| iconst_0; |
| Return: stack_frame_type full; |
| stack_map int; |
| ireturn; |
| Skip: stack_frame_type full; |
| stack_map int, int; |
| // If will be eliminated by CEE |
| if_icmpgt Null; // Backbranch (if) with safepoint |
| iconst_1; |
| goto Return; // Backbranch (f_goto) with safepoint |
| } |
| |
| public Method test5:"()I" stack 3 locals 2 { |
| aload_0; |
| getfield Field f1:"I"; |
| aload_0; |
| getfield Field f2:"I"; |
| iconst_1; |
| isub; |
| goto Skip; |
| Null: stack_frame_type full; |
| stack_map; |
| iconst_0; |
| goto Return; |
| Skip: stack_frame_type full; |
| stack_map int, int; |
| // If will be eliminated by CEE |
| if_icmpgt Null; // Backbranch (if) with safepoint |
| iconst_1; |
| Return: stack_frame_type full; |
| stack_map int; |
| ireturn; |
| } |
| |
| public Method test6:"()I" stack 4 locals 1 { |
| getstatic Field i:"I"; |
| Loop: stack_frame_type full; |
| stack_map int; |
| // Decrement i and exit loop if < 0 |
| iconst_0; |
| getstatic Field i:"I"; |
| iconst_1; |
| isub; |
| dup; |
| putstatic Field i:"I"; |
| if_icmpgt Exit; |
| |
| iconst_1; |
| // Without the fix, if got eliminated by CEE |
| if_icmpgt Null; |
| iconst_1; |
| goto Loop; // Backbranch (f_goto) with safepoint |
| Null: stack_frame_type same; |
| iconst_0; |
| goto Loop; // Backbranch (t_goto) with safepoint |
| |
| Exit: stack_frame_type full; |
| stack_map int; |
| iconst_0; |
| ireturn; |
| } |
| } |