1 /*
2 * Copyright (c) 2013, 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.lir.amd64;
26
27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
28 import static jdk.vm.ci.code.ValueUtil.asStackSlot;
29 import static jdk.vm.ci.code.ValueUtil.isStackSlot;
30
31 import java.util.Arrays;
32
33 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
34 import org.graalvm.compiler.lir.LIRInstructionClass;
35 import org.graalvm.compiler.lir.LIRValueUtil;
36 import org.graalvm.compiler.lir.Opcode;
37 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
38
39 import jdk.vm.ci.amd64.AMD64Kind;
40 import jdk.vm.ci.code.Register;
41 import jdk.vm.ci.code.StackSlot;
42 import jdk.vm.ci.meta.AllocatableValue;
43
44 /**
45 * Restores registers from stack slots.
46 */
47 @Opcode("RESTORE_REGISTER")
48 public class AMD64RestoreRegistersOp extends AMD64LIRInstruction {
49 public static final LIRInstructionClass<AMD64RestoreRegistersOp> TYPE = LIRInstructionClass.create(AMD64RestoreRegistersOp.class);
50
51 /**
52 * The slots from which the registers are restored.
53 */
54 @Use(STACK) protected final AllocatableValue[] slots;
55
56 /**
57 * The operation that saved the registers restored by this operation.
58 */
59 private final AMD64SaveRegistersOp save;
60
61 public AMD64RestoreRegistersOp(AllocatableValue[] values, AMD64SaveRegistersOp save) {
62 this(TYPE, values, save);
63 }
64
65 protected AMD64RestoreRegistersOp(LIRInstructionClass<? extends AMD64RestoreRegistersOp> c, AllocatableValue[] values, AMD64SaveRegistersOp save) {
66 super(c);
67 assert Arrays.asList(values).stream().allMatch(LIRValueUtil::isVirtualStackSlot);
68 this.slots = values;
69 this.save = save;
70 }
71
72 protected Register[] getSavedRegisters() {
73 return save.savedRegisters;
74 }
75
76 protected void restoreRegister(CompilationResultBuilder crb, AMD64MacroAssembler masm, Register result, StackSlot input) {
77 AMD64Move.stack2reg((AMD64Kind) input.getPlatformKind(), crb, masm, result, input);
78 }
79
80 @Override
81 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
82 Register[] savedRegisters = getSavedRegisters();
83 for (int i = 0; i < savedRegisters.length; i++) {
84 if (savedRegisters[i] != null) {
85 assert isStackSlot(slots[i]) : "not a StackSlot: " + slots[i];
86 restoreRegister(crb, masm, savedRegisters[i], asStackSlot(slots[i]));
87 }
88 }
89 }
90 }
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1 /*
2 * Copyright (c) 2013, 2019, 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.lir.amd64;
26
27 import static jdk.vm.ci.code.ValueUtil.asStackSlot;
28 import static jdk.vm.ci.code.ValueUtil.isStackSlot;
29 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK;
30
31 import java.util.Arrays;
32
33 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
34 import org.graalvm.compiler.lir.LIRInstructionClass;
35 import org.graalvm.compiler.lir.LIRValueUtil;
36 import org.graalvm.compiler.lir.Opcode;
37 import org.graalvm.compiler.lir.StandardOp;
38 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
39
40 import jdk.vm.ci.amd64.AMD64Kind;
41 import jdk.vm.ci.code.Register;
42 import jdk.vm.ci.code.StackSlot;
43 import jdk.vm.ci.meta.AllocatableValue;
44
45 /**
46 * Restores registers from stack slots.
47 */
48 @Opcode("RESTORE_REGISTER")
49 public class AMD64RestoreRegistersOp extends AMD64LIRInstruction implements StandardOp.RestoreRegistersOp {
50 public static final LIRInstructionClass<AMD64RestoreRegistersOp> TYPE = LIRInstructionClass.create(AMD64RestoreRegistersOp.class);
51
52 /**
53 * The slots from which the registers are restored.
54 */
55 @Use(STACK) protected final AllocatableValue[] slots;
56
57 /**
58 * The operation that saved the registers restored by this operation.
59 */
60 private final AMD64SaveRegistersOp save;
61
62 public AMD64RestoreRegistersOp(AllocatableValue[] values, AMD64SaveRegistersOp save) {
63 this(TYPE, values, save);
64 }
65
66 protected AMD64RestoreRegistersOp(LIRInstructionClass<? extends AMD64RestoreRegistersOp> c, AllocatableValue[] values, AMD64SaveRegistersOp save) {
67 super(c);
68 assert Arrays.asList(values).stream().allMatch(LIRValueUtil::isVirtualStackSlot);
69 this.slots = values;
70 this.save = save;
71 }
72
73 protected Register[] getSavedRegisters() {
74 return save.getSavedRegisters();
75 }
76
77 protected void restoreRegister(CompilationResultBuilder crb, AMD64MacroAssembler masm, Register result, StackSlot input) {
78 AMD64Move.stack2reg((AMD64Kind) input.getPlatformKind(), crb, masm, result, input);
79 }
80
81 @Override
82 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
83 Register[] savedRegisters = getSavedRegisters();
84 for (int i = 0; i < savedRegisters.length; i++) {
85 if (savedRegisters[i] != null) {
86 assert isStackSlot(slots[i]) : "not a StackSlot: " + slots[i];
87 restoreRegister(crb, masm, savedRegisters[i], asStackSlot(slots[i]));
88 }
89 }
90 }
91 }
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