1 /*
2 * Copyright (c) 2013, 2016, 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 package org.graalvm.compiler.hotspot.sparc;
24
25 import static org.graalvm.compiler.asm.sparc.SPARCAssembler.BPR;
26 import static org.graalvm.compiler.asm.sparc.SPARCAssembler.Annul.ANNUL;
27 import static org.graalvm.compiler.asm.sparc.SPARCAssembler.BranchPredict.PREDICT_TAKEN;
28 import static org.graalvm.compiler.asm.sparc.SPARCAssembler.RCondition.Rc_z;
29 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL;
30 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
31 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
32 import static org.graalvm.compiler.lir.sparc.SPARCMove.loadFromConstantTable;
33 import static jdk.vm.ci.code.ValueUtil.asRegister;
34
35 import org.graalvm.compiler.asm.Label;
36 import org.graalvm.compiler.asm.sparc.SPARCAddress;
37 import org.graalvm.compiler.asm.sparc.SPARCAssembler.CC;
38 import org.graalvm.compiler.asm.sparc.SPARCAssembler.ConditionFlag;
39 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
40 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister;
41 import org.graalvm.compiler.hotspot.CompressEncoding;
42 import org.graalvm.compiler.lir.LIRInstructionClass;
43 import org.graalvm.compiler.lir.StandardOp.LoadConstantOp;
44 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
45 import org.graalvm.compiler.lir.sparc.SPARCDelayedControlTransfer;
46 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction;
47 import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction;
48
49 import jdk.vm.ci.code.Register;
50 import jdk.vm.ci.code.ValueUtil;
51 import jdk.vm.ci.hotspot.HotSpotConstant;
52 import jdk.vm.ci.meta.AllocatableValue;
53 import jdk.vm.ci.meta.Constant;
54
55 public class SPARCHotSpotMove {
56
57 public static class LoadHotSpotObjectConstantInline extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction, LoadConstantOp {
58 public static final LIRInstructionClass<LoadHotSpotObjectConstantInline> TYPE = LIRInstructionClass.create(LoadHotSpotObjectConstantInline.class);
59
60 public static final SizeEstimate SIZE = SizeEstimate.create(8);
61 private HotSpotConstant constant;
62 @Def({REG, STACK}) AllocatableValue result;
63
64 public LoadHotSpotObjectConstantInline(HotSpotConstant constant, AllocatableValue result) {
65 super(TYPE, SIZE);
66 this.constant = constant;
67 this.result = result;
68 }
69
70 @Override
71 protected void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
72 crb.recordInlineDataInCode(constant);
73 if (constant.isCompressed()) {
74 masm.setw(0, asRegister(result), true);
75 } else {
76 masm.setx(0, asRegister(result), true);
77 }
78 }
79
80 @Override
81 public AllocatableValue getResult() {
82 return result;
83 }
84
85 @Override
86 public Constant getConstant() {
87 return constant;
88 }
89 }
90
91 public static class LoadHotSpotObjectConstantFromTable extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction {
92 public static final LIRInstructionClass<LoadHotSpotObjectConstantFromTable> TYPE = LIRInstructionClass.create(LoadHotSpotObjectConstantFromTable.class);
93
94 public static final SizeEstimate SIZE = SizeEstimate.create(2, 8);
95 private final HotSpotConstant constant;
96 @Use({REG}) private AllocatableValue constantTableBase;
97 @Def({REG, STACK}) AllocatableValue result;
98
99 public LoadHotSpotObjectConstantFromTable(HotSpotConstant constant, AllocatableValue result, AllocatableValue constantTableBase) {
100 super(TYPE, SIZE);
101 this.constant = constant;
102 this.result = result;
103 this.constantTableBase = constantTableBase;
104 }
105
106 @Override
107 protected void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
108 try (ScratchRegister scratch = masm.getScratchRegister()) {
109 boolean isStack = ValueUtil.isStackSlot(result);
110 Register register;
111 if (isStack) {
112 register = scratch.getRegister();
113 } else {
114 register = asRegister(result);
115 }
116 int bytes = result.getPlatformKind().getSizeInBytes();
117 loadFromConstantTable(crb, masm, bytes, asRegister(constantTableBase), constant, register, SPARCDelayedControlTransfer.DUMMY);
118 if (isStack) {
119 masm.st(register, (SPARCAddress) crb.asAddress(result), bytes);
120 }
121 }
122 }
123 }
124
125 public static final class CompressPointer extends SPARCLIRInstruction {
126 public static final LIRInstructionClass<CompressPointer> TYPE = LIRInstructionClass.create(CompressPointer.class);
127 public static final SizeEstimate SIZE = SizeEstimate.create(5);
128
129 private final CompressEncoding encoding;
130 private final boolean nonNull;
131
132 @Def({REG}) protected AllocatableValue result;
133 @Use({REG}) protected AllocatableValue input;
134 @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister;
135
136 public CompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) {
137 super(TYPE, SIZE);
138 this.result = result;
139 this.input = input;
140 this.baseRegister = baseRegister;
141 this.encoding = encoding;
142 this.nonNull = nonNull;
143 }
144
145 @Override
146 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
147 Register inputRegister = asRegister(input);
148 Register resReg = asRegister(result);
149 if (encoding.base != 0) {
150 Register baseReg = asRegister(baseRegister);
151 if (!nonNull) {
152 masm.cmp(inputRegister, baseReg);
153 masm.movcc(ConditionFlag.Equal, CC.Xcc, baseReg, resReg);
154 masm.sub(resReg, baseReg, resReg);
155 } else {
156 masm.sub(inputRegister, baseReg, resReg);
157 }
158 if (encoding.shift != 0) {
159 masm.srlx(resReg, encoding.shift, resReg);
160 }
161 } else {
162 masm.srlx(inputRegister, encoding.shift, resReg);
163 }
164 }
165 }
166
167 public static final class UncompressPointer extends SPARCLIRInstruction {
168 public static final LIRInstructionClass<UncompressPointer> TYPE = LIRInstructionClass.create(UncompressPointer.class);
169 public static final SizeEstimate SIZE = SizeEstimate.create(4);
170
171 private final CompressEncoding encoding;
172 private final boolean nonNull;
173
174 @Def({REG}) protected AllocatableValue result;
175 @Use({REG}) protected AllocatableValue input;
176 @Alive({REG, ILLEGAL}) protected AllocatableValue baseRegister;
177
178 public UncompressPointer(AllocatableValue result, AllocatableValue input, AllocatableValue baseRegister, CompressEncoding encoding, boolean nonNull) {
179 super(TYPE, SIZE);
180 this.result = result;
181 this.input = input;
182 this.baseRegister = baseRegister;
183 this.encoding = encoding;
184 this.nonNull = nonNull;
185 }
186
187 @Override
188 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
189 Register inputRegister = asRegister(input);
190 Register resReg = asRegister(result);
191 Register secondaryInput;
192 if (encoding.shift != 0) {
193 masm.sll(inputRegister, encoding.shift, resReg);
194 secondaryInput = resReg;
195 } else {
196 secondaryInput = inputRegister;
197 }
198
199 if (encoding.base != 0) {
200 if (nonNull) {
201 masm.add(secondaryInput, asRegister(baseRegister), resReg);
202 } else {
203 Label done = new Label();
204 BPR.emit(masm, Rc_z, ANNUL, PREDICT_TAKEN, secondaryInput, done);
205 masm.add(asRegister(baseRegister), secondaryInput, resReg);
206 masm.bind(done);
207 }
208 }
209 }
210 }
211
212 }