author | dlong |
Tue, 24 Sep 2019 12:47:15 -0400 | |
changeset 58299 | 6df94ce3ab2f |
parent 55509 | d58442b8abc1 |
child 58679 | 9c3209ff7550 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package org.graalvm.compiler.hotspot.aarch64; |
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import static jdk.vm.ci.aarch64.AArch64.sp; |
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import static jdk.vm.ci.code.ValueUtil.asRegister; |
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import static jdk.vm.ci.hotspot.aarch64.AArch64HotSpotRegisterConfig.fp; |
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51126
a25c48c0a1ab
8181855: [Graal] runtime/ReservedStack/ReservedStackTest.java triggers: assert(thread->deopt_mark() == __null) failed: no stack overflow from deopt blob/uncommon trap
dlong
parents:
50858
diff
changeset
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import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
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import org.graalvm.compiler.asm.Label; |
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import org.graalvm.compiler.asm.aarch64.AArch64Address; |
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import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; |
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import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister; |
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import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
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import org.graalvm.compiler.lir.LIRInstructionClass; |
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import org.graalvm.compiler.lir.Opcode; |
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import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
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import org.graalvm.compiler.serviceprovider.JavaVersionUtil; |
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import jdk.vm.ci.code.Register; |
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import jdk.vm.ci.meta.AllocatableValue; |
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/** |
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* Sets up the arguments for an exception handler in the callers frame, removes the current frame |
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* and jumps to the handler. |
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*/ |
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@Opcode("JUMP_TO_EXCEPTION_HANDLER_IN_CALLER") |
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public class AArch64HotSpotJumpToExceptionHandlerInCallerOp extends AArch64HotSpotEpilogueOp { |
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public static final LIRInstructionClass<AArch64HotSpotJumpToExceptionHandlerInCallerOp> TYPE = LIRInstructionClass.create(AArch64HotSpotJumpToExceptionHandlerInCallerOp.class); |
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@Use(REG) private AllocatableValue handlerInCallerPc; |
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@Use(REG) private AllocatableValue exception; |
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@Use(REG) private AllocatableValue exceptionPc; |
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private final Register thread; |
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private final int isMethodHandleReturnOffset; |
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public AArch64HotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc, int isMethodHandleReturnOffset, |
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Register thread, GraalHotSpotVMConfig config) { |
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super(TYPE, config); |
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this.handlerInCallerPc = handlerInCallerPc; |
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this.exception = exception; |
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this.exceptionPc = exceptionPc; |
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this.isMethodHandleReturnOffset = isMethodHandleReturnOffset; |
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this.thread = thread; |
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} |
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@Override |
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public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { |
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51126
a25c48c0a1ab
8181855: [Graal] runtime/ReservedStack/ReservedStackTest.java triggers: assert(thread->deopt_mark() == __null) failed: no stack overflow from deopt blob/uncommon trap
dlong
parents:
50858
diff
changeset
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leaveFrame(crb, masm, /* emitSafepoint */false, false); |
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if (JavaVersionUtil.JAVA_SPEC < 8) { |
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// Restore sp from fp if the exception PC is a method handle call site. |
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try (ScratchRegister sc = masm.getScratchRegister()) { |
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Register scratch = sc.getRegister(); |
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final boolean allowOverwrite = false; |
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AArch64Address address = masm.makeAddress(thread, isMethodHandleReturnOffset, scratch, 4, allowOverwrite); |
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masm.ldr(32, scratch, address); |
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Label noRestore = new Label(); |
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masm.cbz(32, scratch, noRestore); |
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masm.mov(64, sp, fp); |
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masm.bind(noRestore); |
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} |
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} |
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masm.jmp(asRegister(handlerInCallerPc)); |
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} |
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} |