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annotate graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotBackend.java @ 10465:699ee4e4f9dc
fixed gate warnings
author | twisti |
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date | Thu, 20 Jun 2013 22:26:38 -0700 |
parents | f78079947084 |
children | 53ba9df05fa2 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.hotspot.sparc; |
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24 |
10459 | 25 import sun.misc.*; |
26 | |
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27 import com.oracle.graal.api.code.*; |
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28 import com.oracle.graal.api.meta.*; |
10459 | 29 import com.oracle.graal.asm.*; |
30 import com.oracle.graal.asm.sparc.*; | |
31 import com.oracle.graal.asm.sparc.SPARCAssembler.*; | |
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32 import com.oracle.graal.compiler.gen.LIRGenerator; |
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33 import com.oracle.graal.hotspot.*; |
10459 | 34 import com.oracle.graal.hotspot.bridge.*; |
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35 import com.oracle.graal.hotspot.meta.*; |
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36 import com.oracle.graal.hotspot.stubs.Stub; |
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37 import com.oracle.graal.lir.*; |
10459 | 38 import com.oracle.graal.lir.sparc.*; |
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39 import com.oracle.graal.lir.asm.*; |
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40 import com.oracle.graal.nodes.*; |
10459 | 41 |
42 import static com.oracle.graal.sparc.SPARC.*; | |
43 import static com.oracle.graal.asm.sparc.SPARCAssembler.*; | |
44 import static com.oracle.graal.asm.sparc.SPARCMacroAssembler.*; | |
45 import static com.oracle.graal.api.code.CallingConvention.Type.*; | |
46 import static com.oracle.graal.api.code.ValueUtil.*; | |
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47 import static com.oracle.graal.phases.GraalOptions.*; |
10459 | 48 import static java.lang.reflect.Modifier.*; |
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49 |
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50 /** |
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51 * HotSpot SPARC specific backend. |
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52 */ |
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53 public class SPARCHotSpotBackend extends HotSpotBackend { |
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54 |
10459 | 55 private static final Unsafe unsafe = Unsafe.getUnsafe(); |
56 | |
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57 public SPARCHotSpotBackend(HotSpotRuntime runtime, TargetDescription target) { |
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58 super(runtime, target); |
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59 } |
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60 |
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61 @Override |
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62 public LIRGenerator newLIRGenerator(StructuredGraph graph, FrameMap frameMap, CallingConvention cc, LIR lir) { |
10459 | 63 return new SPARCHotSpotLIRGenerator(graph, runtime(), target, frameMap, cc, lir); |
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64 } |
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65 |
10459 | 66 /** |
67 * Emits code to do stack overflow checking. | |
68 * | |
69 * @param afterFrameInit specifies if the stack pointer has already been adjusted to allocate | |
70 * the current frame | |
71 */ | |
72 protected static void emitStackOverflowCheck(TargetMethodAssembler tasm, boolean afterFrameInit) { | |
73 if (StackShadowPages.getValue() > 0) { | |
74 SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; | |
75 final int frameSize = tasm.frameMap.frameSize(); | |
76 if (frameSize > 0) { | |
77 int lastFramePage = frameSize / unsafe.pageSize(); | |
78 // emit multiple stack bangs for methods with frames larger than a page | |
79 for (int i = 0; i <= lastFramePage; i++) { | |
80 int disp = (i + StackShadowPages.getValue()) * unsafe.pageSize(); | |
81 if (afterFrameInit) { | |
82 disp -= frameSize; | |
83 } | |
84 tasm.blockComment("[stack overflow check]"); | |
85 // FIXME currently doesn't work; maybe frame size is wrong | |
86 // new Ldx(new SPARCAddress(sp, -disp), g0).emit(masm); | |
87 } | |
88 } | |
89 } | |
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90 } |
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91 |
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92 class HotSpotFrameContext implements FrameContext { |
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93 |
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94 final boolean isStub; |
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95 |
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96 HotSpotFrameContext(boolean isStub) { |
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97 this.isStub = isStub; |
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98 } |
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99 |
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100 @Override |
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101 public void enter(TargetMethodAssembler tasm) { |
10459 | 102 final int frameSize = tasm.frameMap.frameSize(); |
103 | |
104 SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; | |
105 if (!isStub) { | |
106 emitStackOverflowCheck(tasm, false); | |
107 } | |
108 new Save(sp, frameSize, sp).emit(masm); | |
109 | |
110 if (ZapStackOnMethodEntry.getValue()) { | |
111 final int slotSize = 8; | |
112 for (int i = 0; i < frameSize / slotSize; ++i) { | |
113 // 0xC1C1C1C1 | |
114 new Stx(g0, new SPARCAddress(sp, i * slotSize)).emit(masm); | |
115 } | |
116 } | |
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117 } |
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118 |
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119 @Override |
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120 public void leave(TargetMethodAssembler tasm) { |
10459 | 121 SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; |
122 new RestoreWindow().emit(masm); | |
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123 } |
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124 } |
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125 |
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126 @Override |
10459 | 127 protected AbstractAssembler createAssembler(FrameMap frameMap) { |
128 return new SPARCMacroAssembler(target, frameMap.registerConfig); | |
129 } | |
130 | |
131 @Override | |
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132 public TargetMethodAssembler newAssembler(LIRGenerator lirGen, CompilationResult compilationResult) { |
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133 SPARCHotSpotLIRGenerator gen = (SPARCHotSpotLIRGenerator) lirGen; |
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134 FrameMap frameMap = gen.frameMap; |
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135 |
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136 Stub stub = gen.getStub(); |
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137 AbstractAssembler masm = createAssembler(frameMap); |
10459 | 138 // On SPARC we always use stack frames. |
139 HotSpotFrameContext frameContext = new HotSpotFrameContext(stub != null); | |
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140 TargetMethodAssembler tasm = new TargetMethodAssembler(target, runtime(), frameMap, masm, frameContext, compilationResult); |
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141 tasm.setFrameSize(frameMap.frameSize()); |
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142 StackSlot deoptimizationRescueSlot = gen.deoptimizationRescueSlot; |
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143 if (deoptimizationRescueSlot != null && stub == null) { |
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144 tasm.compilationResult.setCustomStackAreaOffset(frameMap.offsetForStackSlot(deoptimizationRescueSlot)); |
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145 } |
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146 |
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147 return tasm; |
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148 } |
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149 |
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150 @Override |
10459 | 151 public void emitCode(TargetMethodAssembler tasm, LIRGenerator lirGen, ResolvedJavaMethod installedCodeOwner) { |
152 SPARCMacroAssembler asm = (SPARCMacroAssembler) tasm.asm; | |
153 FrameMap frameMap = tasm.frameMap; | |
154 RegisterConfig regConfig = frameMap.registerConfig; | |
155 HotSpotVMConfig config = runtime().config; | |
156 Label unverifiedStub = installedCodeOwner == null || isStatic(installedCodeOwner.getModifiers()) ? null : new Label(); | |
157 | |
158 // Emit the prefix | |
159 | |
160 if (unverifiedStub != null) { | |
161 tasm.recordMark(Marks.MARK_UNVERIFIED_ENTRY); | |
162 CallingConvention cc = regConfig.getCallingConvention(JavaCallee, null, new JavaType[]{runtime().lookupJavaType(Object.class)}, target, false); | |
163 Register inlineCacheKlass = g5; // see MacroAssembler::ic_call | |
164 Register receiver = asRegister(cc.getArgument(0)); | |
165 SPARCAddress src = new SPARCAddress(receiver, config.hubOffset); | |
166 | |
167 // new Ldx(asm, src, dst); | |
168 // new Cmp(asm, inlineCacheKlass, dst); | |
169 new Bpne(CC.Xcc, unverifiedStub).emit(asm); | |
170 } | |
171 | |
172 asm.align(config.codeEntryAlignment); | |
173 tasm.recordMark(Marks.MARK_OSR_ENTRY); | |
174 tasm.recordMark(Marks.MARK_VERIFIED_ENTRY); | |
175 | |
176 // Emit code for the LIR | |
177 lirGen.lir.emitCode(tasm); | |
178 | |
179 HotSpotFrameContext frameContext = (HotSpotFrameContext) tasm.frameContext; | |
180 if (frameContext != null && !frameContext.isStub) { | |
181 tasm.recordMark(Marks.MARK_EXCEPTION_HANDLER_ENTRY); | |
182 // SPARCCall.directCall(tasm, asm, runtime().lookupForeignCall(EXCEPTION_HANDLER), null, false, | |
183 // null); | |
184 tasm.recordMark(Marks.MARK_DEOPT_HANDLER_ENTRY); | |
185 // SPARCCall.directCall(tasm, asm, runtime().lookupForeignCall(DEOPT_HANDLER), null, false, null); | |
186 } else { | |
187 // No need to emit the stubs for entries back into the method since | |
188 // it has no calls that can cause such "return" entries | |
189 assert !frameMap.accessesCallerFrame() : lirGen.getGraph(); | |
190 } | |
191 | |
192 if (unverifiedStub != null) { | |
193 asm.bind(unverifiedStub); | |
194 // SPARCCall.directJmp(tasm, asm, runtime().lookupForeignCall(IC_MISS_HANDLER)); | |
195 } | |
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5f8101629080
Add projects and skeletons for SPARC port.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
196 } |
5f8101629080
Add projects and skeletons for SPARC port.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
197 } |