1 /*
2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24
25 package org.graalvm.compiler.hotspot.aarch64;
26
27 import static jdk.vm.ci.aarch64.AArch64.r0;
28 import static jdk.vm.ci.aarch64.AArch64.r1;
29 import static jdk.vm.ci.aarch64.AArch64.r10;
30 import static jdk.vm.ci.aarch64.AArch64.r11;
31 import static jdk.vm.ci.aarch64.AArch64.r12;
32 import static jdk.vm.ci.aarch64.AArch64.r13;
33 import static jdk.vm.ci.aarch64.AArch64.r14;
34 import static jdk.vm.ci.aarch64.AArch64.r15;
35 import static jdk.vm.ci.aarch64.AArch64.r16;
36 import static jdk.vm.ci.aarch64.AArch64.r17;
37 import static jdk.vm.ci.aarch64.AArch64.r18;
38 import static jdk.vm.ci.aarch64.AArch64.r19;
39 import static jdk.vm.ci.aarch64.AArch64.r2;
40 import static jdk.vm.ci.aarch64.AArch64.r20;
41 import static jdk.vm.ci.aarch64.AArch64.r21;
42 import static jdk.vm.ci.aarch64.AArch64.r22;
43 import static jdk.vm.ci.aarch64.AArch64.r23;
44 import static jdk.vm.ci.aarch64.AArch64.r24;
45 import static jdk.vm.ci.aarch64.AArch64.r25;
46 import static jdk.vm.ci.aarch64.AArch64.r26;
47 import static jdk.vm.ci.aarch64.AArch64.r28;
48 import static jdk.vm.ci.aarch64.AArch64.r3;
49 import static jdk.vm.ci.aarch64.AArch64.r4;
50 import static jdk.vm.ci.aarch64.AArch64.r5;
51 import static jdk.vm.ci.aarch64.AArch64.r6;
52 import static jdk.vm.ci.aarch64.AArch64.r7;
53 import static jdk.vm.ci.aarch64.AArch64.r8;
54 import static jdk.vm.ci.aarch64.AArch64.r9;
55 import static jdk.vm.ci.aarch64.AArch64.v0;
56 import static jdk.vm.ci.aarch64.AArch64.v1;
57 import static jdk.vm.ci.aarch64.AArch64.v10;
58 import static jdk.vm.ci.aarch64.AArch64.v11;
59 import static jdk.vm.ci.aarch64.AArch64.v12;
60 import static jdk.vm.ci.aarch64.AArch64.v13;
61 import static jdk.vm.ci.aarch64.AArch64.v14;
62 import static jdk.vm.ci.aarch64.AArch64.v15;
63 import static jdk.vm.ci.aarch64.AArch64.v16;
64 import static jdk.vm.ci.aarch64.AArch64.v17;
65 import static jdk.vm.ci.aarch64.AArch64.v18;
66 import static jdk.vm.ci.aarch64.AArch64.v19;
67 import static jdk.vm.ci.aarch64.AArch64.v2;
68 import static jdk.vm.ci.aarch64.AArch64.v20;
69 import static jdk.vm.ci.aarch64.AArch64.v21;
70 import static jdk.vm.ci.aarch64.AArch64.v22;
71 import static jdk.vm.ci.aarch64.AArch64.v23;
72 import static jdk.vm.ci.aarch64.AArch64.v24;
73 import static jdk.vm.ci.aarch64.AArch64.v25;
74 import static jdk.vm.ci.aarch64.AArch64.v26;
75 import static jdk.vm.ci.aarch64.AArch64.v27;
76 import static jdk.vm.ci.aarch64.AArch64.v28;
77 import static jdk.vm.ci.aarch64.AArch64.v29;
78 import static jdk.vm.ci.aarch64.AArch64.v3;
79 import static jdk.vm.ci.aarch64.AArch64.v30;
80 import static jdk.vm.ci.aarch64.AArch64.v31;
81 import static jdk.vm.ci.aarch64.AArch64.v4;
82 import static jdk.vm.ci.aarch64.AArch64.v5;
83 import static jdk.vm.ci.aarch64.AArch64.v6;
84 import static jdk.vm.ci.aarch64.AArch64.v7;
85 import static jdk.vm.ci.aarch64.AArch64.v8;
86 import static jdk.vm.ci.aarch64.AArch64.v9;
87
88 import java.util.ArrayList;
89 import java.util.BitSet;
90
91 import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig;
92
93 import jdk.vm.ci.code.Register;
94 import jdk.vm.ci.code.RegisterArray;
95 import jdk.vm.ci.code.RegisterConfig;
96
97 public class AArch64HotSpotRegisterAllocationConfig extends RegisterAllocationConfig {
98
99 // @formatter:off
100 static final Register[] registerAllocationOrder = {
101 r0, r1, r2, r3, r4, r5, r6, r7,
102 r8, r9, r10, r11, r12, r13, r14, r15,
103 r16, r17, r18, r19, r20, r21, r22, r23,
104 r24, r25, r26, /* r27, */ r28, /* r29, r30, r31 */
105
106 v0, v1, v2, v3, v4, v5, v6, v7,
107 v8, v9, v10, v11, v12, v13, v14, v15,
108 v16, v17, v18, v19, v20, v21, v22, v23,
109 v24, v25, v26, v27, v28, v29, v30, v31
110 };
111 // @formatter:on
112
113 public AArch64HotSpotRegisterAllocationConfig(RegisterConfig registerConfig, String[] allocationRestrictedTo) {
114 super(registerConfig, allocationRestrictedTo);
115 }
116
117 @Override
118 protected RegisterArray initAllocatable(RegisterArray registers) {
119 BitSet regMap = new BitSet(registerConfig.getAllocatableRegisters().size());
120 for (Register reg : registers) {
121 regMap.set(reg.number);
122 }
123
124 ArrayList<Register> allocatableRegisters = new ArrayList<>(registers.size());
125 for (Register reg : registerAllocationOrder) {
126 if (regMap.get(reg.number)) {
127 allocatableRegisters.add(reg);
128 }
129 }
130
131 return super.initAllocatable(new RegisterArray(allocatableRegisters));
132 }
133 }