Mercurial > hg > graal-compiler

annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/stubs/UncommonTrapStub.java @ 19462:33a783b15758

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
made use of Graal stubs instead of equivalent HotSpot stubs optional and off by default
author Doug Simon <doug.simon@oracle.com>
date Wed, 18 Feb 2015 01:13:17 +0100
parents 7cc21427d54b
children 1cde96b96673
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
1 /*
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
2 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
4 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
7 * published by the Free Software Foundation.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
8 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
13 * accompanied this code).
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
14 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
18 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
21 * questions.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
22 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
23 package com.oracle.graal.hotspot.stubs;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
24
19462
33a783b15758 made use of Graal stubs instead of equivalent HotSpot stubs optional and off by default
Doug Simon <doug.simon@oracle.com>
parents: 18669
diff changeset
25 import static com.oracle.graal.hotspot.HotSpotBackend.*;
33a783b15758 made use of Graal stubs instead of equivalent HotSpot stubs optional and off by default
Doug Simon <doug.simon@oracle.com>
parents: 18669
diff changeset
26 import static com.oracle.graal.hotspot.HotSpotBackend.Options.*;
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
27 import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
28
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
29 import com.oracle.graal.api.code.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
30 import com.oracle.graal.api.meta.*;
18370
6713fef8c859 Make the @Fold annotation a top-level interface in the api project. It is not tied to the Snippet class where it was located before.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 18307
diff changeset
31 import com.oracle.graal.api.replacements.*;
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
32 import com.oracle.graal.asm.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
33 import com.oracle.graal.compiler.common.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
34 import com.oracle.graal.graph.Node.ConstantNodeParameter;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
35 import com.oracle.graal.graph.Node.NodeIntrinsic;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
36 import com.oracle.graal.hotspot.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
37 import com.oracle.graal.hotspot.meta.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
38 import com.oracle.graal.hotspot.nodes.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
39 import com.oracle.graal.replacements.*;
16841
cbd42807a31f moved NodeInfo and friends into separate com.oracle.graal.nodeinfo project so that annotation processor can be applied to the base Node class
Doug Simon <doug.simon@oracle.com>
parents: 16441
diff changeset
40 import com.oracle.graal.replacements.Snippet.ConstantParameter;
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
41 import com.oracle.graal.word.*;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
42
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
43 /**
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
44 * Uncommon trap stub.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
45 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
46 * This is the entry point for code which is returning to a de-optimized frame.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
47 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
48 * The steps taken by this frame are as follows:
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
49 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
50 * <li>push a dummy "register_save" and save the return values (O0, O1, F0/F1, G1) and all
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
51 * potentially live registers (at a pollpoint many registers can be live).
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
52 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
53 * <li>call the C routine: Deoptimization::fetch_unroll_info (this function returns information
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
54 * about the number and size of interpreter frames which are equivalent to the frame which is being
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
55 * deoptimized)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
56 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
57 * <li>deallocate the unpack frame, restoring only results values. Other volatile registers will now
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
58 * be captured in the vframeArray as needed.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
59 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
60 * <li>deallocate the deoptimization frame
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
61 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
62 * <li>in a loop using the information returned in the previous step push new interpreter frames
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
63 * (take care to propagate the return values through each new frame pushed)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
64 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
65 * <li>create a dummy "unpack_frame" and save the return values (O0, O1, F0)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
66 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
67 * <li>call the C routine: Deoptimization::unpack_frames (this function lays out values on the
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
68 * interpreter frame which was just created)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
69 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
70 * <li>deallocate the dummy unpack_frame
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
71 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
72 * <li>ensure that all the return values are correctly set and then do a return to the interpreter
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
73 * entry point
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
74 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
75 * <p>
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
76 * <b>ATTENTION: We cannot do any complicated operations e.g. logging via printf in this snippet
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
77 * because we change the current stack layout and so the code is very sensitive to register
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
78 * allocation.</b>
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
79 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
80 public class UncommonTrapStub extends SnippetStub {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
81
18307
85f5227a7a37 add mutable/immutable factory methods to NamedLocationIdentity
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18259
diff changeset
82 public static final LocationIdentity STACK_BANG_LOCATION = NamedLocationIdentity.mutable("stack bang");
16441
0de9f76a4b3d use a location for stack banging
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15926
diff changeset
83
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
84 private final TargetDescription target;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
85
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
86 public UncommonTrapStub(HotSpotProviders providers, TargetDescription target, HotSpotForeignCallLinkage linkage) {
15926
af0e42dad358 reduced time to initialize ForeignCallProviders by avoiding triggering class initialization of Node subclasses as well as making annotation parsing lazy in SnippetInfo
Doug Simon <doug.simon@oracle.com>
parents: 15456
diff changeset
87 super(UncommonTrapStub.class, "uncommonTrapHandler", providers, target, linkage);
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
88 this.target = target;
19462
33a783b15758 made use of Graal stubs instead of equivalent HotSpot stubs optional and off by default
Doug Simon <doug.simon@oracle.com>
parents: 18669
diff changeset
89 assert PreferGraalStubs.getValue();
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
90 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
91
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
92 @Override
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
93 public boolean preservesRegisters() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
94 return false;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
95 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
96
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
97 @Override
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
98 protected Object getConstantParameterValue(int index, String name) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
99 switch (index) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
100 case 0:
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
101 return providers.getRegisters().getThreadRegister();
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
102 case 1:
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
103 return providers.getRegisters().getStackPointerRegister();
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
104 default:
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
105 throw GraalInternalError.shouldNotReachHere("unknown parameter " + name + " at index " + index);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
106 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
107 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
108
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
109 /**
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
110 * Uncommon trap handler.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
111 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
112 * We save the argument return registers. We call the first C routine, fetch_unroll_info(). This
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
113 * routine captures the return values and returns a structure which describes the current frame
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
114 * size and the sizes of all replacement frames. The current frame is compiled code and may
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
115 * contain many inlined functions, each with their own JVM state. We pop the current frame, then
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
116 * push all the new frames. Then we call the C routine unpack_frames() to populate these frames.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
117 * Finally unpack_frames() returns us the new target address. Notice that callee-save registers
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
118 * are BLOWN here; they have already been captured in the vframeArray at the time the return PC
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
119 * was patched.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
120 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
121 @Snippet
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
122 private static void uncommonTrapHandler(@ConstantParameter Register threadRegister, @ConstantParameter Register stackPointerRegister) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
123 final Word thread = registerAsWord(threadRegister);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
124 final long registerSaver = SaveAllRegistersNode.saveAllRegisters();
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
125
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
126 final int actionAndReason = readPendingDeoptimization(thread);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
127 writePendingDeoptimization(thread, -1);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
128
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
129 final Word unrollBlock = UncommonTrapCallNode.uncommonTrap(registerSaver, actionAndReason);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
130
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
131 // Pop all the frames we must move/replace.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
132 //
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
133 // Frame picture (youngest to oldest)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
134 // 1: self-frame
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
135 // 2: deoptimizing frame
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
136 // 3: caller of deoptimizing frame (could be compiled/interpreted).
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
137
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
138 // Pop self-frame.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
139 LeaveCurrentStackFrameNode.leaveCurrentStackFrame(registerSaver);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
140
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
141 // Load the initial info we should save (e.g. frame pointer).
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
142 final Word initialInfo = unrollBlock.readWord(deoptimizationUnrollBlockInitialInfoOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
143
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
144 // Pop deoptimized frame.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
145 final int sizeOfDeoptimizedFrame = unrollBlock.readInt(deoptimizationUnrollBlockSizeOfDeoptimizedFrameOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
146 LeaveDeoptimizedStackFrameNode.leaveDeoptimizedStackFrame(sizeOfDeoptimizedFrame, initialInfo);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
147
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
148 /*
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
149 * Stack bang to make sure there's enough room for the interpreter frames. Bang stack for
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
150 * total size of the interpreter frames plus shadow page size. Bang one page at a time
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
151 * because large sizes can bang beyond yellow and red zones.
18669
Stefan Anzinger <stefan.a.anzinger@oracle.com>
parents: 18370
diff changeset
152 *
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
153 * @deprecated This code should go away as soon as JDK-8032410 hits the Graal repository.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
154 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
155 final int totalFrameSizes = unrollBlock.readInt(deoptimizationUnrollBlockTotalFrameSizesOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
156 final int bangPages = NumUtil.roundUp(totalFrameSizes, pageSize()) / pageSize() + stackShadowPages();
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
157 Word stackPointer = readRegister(stackPointerRegister);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
158
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
159 for (int i = 1; i < bangPages; i++) {
16441
0de9f76a4b3d use a location for stack banging
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15926
diff changeset
160 stackPointer.writeInt((-i * pageSize()) + stackBias(), 0, STACK_BANG_LOCATION);
15456
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
161 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
162
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
163 // Load number of interpreter frames.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
164 final int numberOfFrames = unrollBlock.readInt(deoptimizationUnrollBlockNumberOfFramesOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
165
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
166 // Load address of array of frame sizes.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
167 final Word frameSizes = unrollBlock.readWord(deoptimizationUnrollBlockFrameSizesOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
168
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
169 // Load address of array of frame PCs.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
170 final Word framePcs = unrollBlock.readWord(deoptimizationUnrollBlockFramePcsOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
171
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
172 /*
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
173 * Get the current stack pointer (sender's original SP) before adjustment so that we can
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
174 * save it in the skeletal interpreter frame.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
175 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
176 Word senderSp = readRegister(stackPointerRegister);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
177
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
178 // Adjust old interpreter frame to make space for new frame's extra Java locals.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
179 final int callerAdjustment = unrollBlock.readInt(deoptimizationUnrollBlockCallerAdjustmentOffset());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
180 writeRegister(stackPointerRegister, readRegister(stackPointerRegister).subtract(callerAdjustment));
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
181
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
182 for (int i = 0; i < numberOfFrames; i++) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
183 final Word frameSize = frameSizes.readWord(i * wordSize());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
184 final Word framePc = framePcs.readWord(i * wordSize());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
185
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
186 // Push an interpreter frame onto the stack.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
187 PushInterpreterFrameNode.pushInterpreterFrame(frameSize, framePc, senderSp, initialInfo);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
188
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
189 // Get the current stack pointer (sender SP) and pass it to next frame.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
190 senderSp = readRegister(stackPointerRegister);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
191 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
192
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
193 // Get final return address.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
194 final Word framePc = framePcs.readWord(numberOfFrames * wordSize());
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
195
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
196 /*
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
197 * Enter a frame to call out to unpack frames. Since we changed the stack pointer to an
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
198 * unknown alignment we need to align it here before calling C++ code.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
199 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
200 final Word senderFp = initialInfo;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
201 EnterUnpackFramesStackFrameNode.enterUnpackFramesStackFrame(framePc, senderSp, senderFp, registerSaver);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
202
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
203 // Pass uncommon trap mode to unpack frames.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
204 final int mode = deoptimizationUnpackUncommonTrap();
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
205 unpackFrames(UNPACK_FRAMES, thread, mode);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
206
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
207 LeaveUnpackFramesStackFrameNode.leaveUnpackFramesStackFrame(registerSaver);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
208 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
209
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
210 /**
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
211 * Reads the value of the passed register as a Word.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
212 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
213 private static Word readRegister(Register register) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
214 return registerAsWord(register, false, false);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
215 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
216
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
217 /**
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
218 * Writes the value of the passed register.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
219 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
220 * @param value value the register should be set to
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
221 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
222 private static void writeRegister(Register register, Word value) {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
223 writeRegisterAsWord(register, value);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
224 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
225
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
226 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
227 private static int stackShadowPages() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
228 return config().useStackBanging ? config().stackShadowPages : 0;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
229 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
230
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
231 /**
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
232 * Returns the stack bias for the host architecture.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
233 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
234 * @deprecated This method should go away as soon as JDK-8032410 hits the Graal repository.
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
235 *
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
236 * @return stack bias
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
237 */
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
238 @Deprecated
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
239 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
240 private static int stackBias() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
241 return config().stackBias;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
242 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
243
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
244 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
245 private static int deoptimizationUnrollBlockSizeOfDeoptimizedFrameOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
246 return config().deoptimizationUnrollBlockSizeOfDeoptimizedFrameOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
247 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
248
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
249 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
250 private static int deoptimizationUnrollBlockCallerAdjustmentOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
251 return config().deoptimizationUnrollBlockCallerAdjustmentOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
252 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
253
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
254 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
255 private static int deoptimizationUnrollBlockNumberOfFramesOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
256 return config().deoptimizationUnrollBlockNumberOfFramesOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
257 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
258
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
259 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
260 private static int deoptimizationUnrollBlockTotalFrameSizesOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
261 return config().deoptimizationUnrollBlockTotalFrameSizesOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
262 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
263
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
264 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
265 private static int deoptimizationUnrollBlockFrameSizesOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
266 return config().deoptimizationUnrollBlockFrameSizesOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
267 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
268
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
269 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
270 private static int deoptimizationUnrollBlockFramePcsOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
271 return config().deoptimizationUnrollBlockFramePcsOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
272 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
273
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
274 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
275 private static int deoptimizationUnrollBlockInitialInfoOffset() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
276 return config().deoptimizationUnrollBlockInitialInfoOffset;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
277 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
278
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
279 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
280 private static int deoptimizationUnpackDeopt() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
281 return config().deoptimizationUnpackDeopt;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
282 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
283
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
284 @Fold
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
285 private static int deoptimizationUnpackUncommonTrap() {
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
286 return config().deoptimizationUnpackUncommonTrap;
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
287 }
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
288
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
289 @NodeIntrinsic(value = StubForeignCallNode.class, setStampFromReturnType = true)
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
290 public static native int unpackFrames(@ConstantNodeParameter ForeignCallDescriptor unpackFrames, Word thread, int mode);
bb97b75d1d65 AMD64: implemented DeoptimizationStub.deoptimizationHandler
twisti
parents:
diff changeset
291 }