1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/c1/TestGotoIf.jasm Tue Feb 19 08:58:55 2019 +0100
1.3 @@ -0,0 +1,171 @@
1.4 +/*
1.5 + * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +public class compiler/c1/TestGotoIf version 52:0 {
1.29 + public Field f1:"I";
1.30 + public Field f2:"I";
1.31 + public static Field i:"I";
1.32 +
1.33 + Method "<init>":"()V" stack 1 locals 1 {
1.34 + aload_0;
1.35 + invokespecial Method java/lang/Object."<init>":"()V";
1.36 + return;
1.37 + }
1.38 +
1.39 + public Method test1:"()I" stack 3 locals 1 {
1.40 + aload_0;
1.41 + getfield Field f1:"I";
1.42 + aload_0;
1.43 + getfield Field f2:"I";
1.44 + iconst_1;
1.45 + isub;
1.46 + // Without the fix, if got eliminated by CEE
1.47 + if_icmpgt Null;
1.48 + iconst_1;
1.49 + Return: stack_frame_type stack1;
1.50 + stack_map int;
1.51 + ireturn;
1.52 + Null: stack_frame_type same;
1.53 + iconst_0;
1.54 + goto Return; // Backbranch (t_goto) with safepoint
1.55 + }
1.56 +
1.57 + public Method test2:"()I" stack 3 locals 1 {
1.58 + aload_0;
1.59 + getfield Field f1:"I";
1.60 + aload_0;
1.61 + getfield Field f2:"I";
1.62 + iconst_1;
1.63 + isub;
1.64 + goto Skip;
1.65 + Return: stack_frame_type full;
1.66 + stack_map int;
1.67 + ireturn;
1.68 + Skip: stack_frame_type full;
1.69 + stack_map int, int;
1.70 + // Without the fix, if got eliminated by CEE
1.71 + if_icmpgt Null;
1.72 + iconst_1;
1.73 + goto Return; // Backbranch (f_goto) with safepoint
1.74 + Null: stack_frame_type full;
1.75 + stack_map;
1.76 + iconst_0;
1.77 + goto Return; // Backbranch (t_goto) with safepoint
1.78 + }
1.79 +
1.80 + public Method test3:"()I" stack 3 locals 1 {
1.81 + aload_0;
1.82 + getfield Field f1:"I";
1.83 + aload_0;
1.84 + getfield Field f2:"I";
1.85 + iconst_1;
1.86 + isub;
1.87 + goto Skip;
1.88 + Return: stack_frame_type full;
1.89 + stack_map int;
1.90 + ireturn;
1.91 + Null: stack_frame_type full;
1.92 + stack_map;
1.93 + iconst_0;
1.94 + goto Return; // Backbranch (t_goto) with safepoint
1.95 + Skip: stack_frame_type full;
1.96 + stack_map int, int;
1.97 + // If will be eliminated by CEE
1.98 + if_icmpgt Null; // Backbranch (if) with safepoint
1.99 + iconst_1;
1.100 + goto Return; // Backbranch (f_goto) with safepoint
1.101 + }
1.102 +
1.103 + public Method test4:"()I" stack 3 locals 1 {
1.104 + aload_0;
1.105 + getfield Field f1:"I";
1.106 + aload_0;
1.107 + getfield Field f2:"I";
1.108 + iconst_1;
1.109 + isub;
1.110 + goto Skip;
1.111 + Null: stack_frame_type full;
1.112 + stack_map;
1.113 + iconst_0;
1.114 + Return: stack_frame_type full;
1.115 + stack_map int;
1.116 + ireturn;
1.117 + Skip: stack_frame_type full;
1.118 + stack_map int, int;
1.119 + // If will be eliminated by CEE
1.120 + if_icmpgt Null; // Backbranch (if) with safepoint
1.121 + iconst_1;
1.122 + goto Return; // Backbranch (f_goto) with safepoint
1.123 + }
1.124 +
1.125 + public Method test5:"()I" stack 3 locals 2 {
1.126 + aload_0;
1.127 + getfield Field f1:"I";
1.128 + aload_0;
1.129 + getfield Field f2:"I";
1.130 + iconst_1;
1.131 + isub;
1.132 + goto Skip;
1.133 + Null: stack_frame_type full;
1.134 + stack_map;
1.135 + iconst_0;
1.136 + goto Return;
1.137 + Skip: stack_frame_type full;
1.138 + stack_map int, int;
1.139 + // If will be eliminated by CEE
1.140 + if_icmpgt Null; // Backbranch (if) with safepoint
1.141 + iconst_1;
1.142 + Return: stack_frame_type full;
1.143 + stack_map int;
1.144 + ireturn;
1.145 + }
1.146 +
1.147 + public Method test6:"()I" stack 4 locals 1 {
1.148 + getstatic Field i:"I";
1.149 + Loop: stack_frame_type full;
1.150 + stack_map int;
1.151 + // Decrement i and exit loop if < 0
1.152 + iconst_0;
1.153 + getstatic Field i:"I";
1.154 + iconst_1;
1.155 + isub;
1.156 + dup;
1.157 + putstatic Field i:"I";
1.158 + if_icmpgt Exit;
1.159 +
1.160 + iconst_1;
1.161 + // Without the fix, if got eliminated by CEE
1.162 + if_icmpgt Null;
1.163 + iconst_1;
1.164 + goto Loop; // Backbranch (f_goto) with safepoint
1.165 + Null: stack_frame_type same;
1.166 + iconst_0;
1.167 + goto Loop; // Backbranch (t_goto) with safepoint
1.168 +
1.169 + Exit: stack_frame_type full;
1.170 + stack_map int;
1.171 + iconst_0;
1.172 + ireturn;
1.173 + }
1.174 +}
