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view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotJumpToExceptionHandlerInCallerOp.java @ 18678:e04d70a4d3ae
prefer profile methods during partial evaluation
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Mon, 15 Dec 2014 14:54:59 +0100 |
parents | c9576b6cf7d6 |
children | 5dcb9fdea75a |
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/* * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.hotspot.sparc; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import static com.oracle.graal.sparc.SPARC.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.asm.sparc.SPARCAssembler.*; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; /** * Sets up the arguments for an exception handler in the callers frame, removes the current frame * and jumps to the handler. */ @Opcode("JUMP_TO_EXCEPTION_HANDLER_IN_CALLER") final class SPARCHotSpotJumpToExceptionHandlerInCallerOp extends SPARCHotSpotEpilogueOp { @Use(REG) AllocatableValue handlerInCallerPc; @Use(REG) AllocatableValue exception; @Use(REG) AllocatableValue exceptionPc; private final Register thread; private final int isMethodHandleReturnOffset; SPARCHotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc, int isMethodHandleReturnOffset, Register thread) { this.handlerInCallerPc = handlerInCallerPc; this.exception = exception; this.exceptionPc = exceptionPc; this.isMethodHandleReturnOffset = isMethodHandleReturnOffset; this.thread = thread; } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { // Move the values up one level to be the input for the next call. new SPARCMacroAssembler.Mov(asRegister(handlerInCallerPc), i2).emit(masm); new SPARCMacroAssembler.Mov(asRegister(exception), i0).emit(masm); new SPARCMacroAssembler.Mov(asRegister(exceptionPc), i1).emit(masm); leaveFrame(crb); // Restore SP from L7 if the exception PC is a method handle call site. SPARCAddress dst = new SPARCAddress(thread, isMethodHandleReturnOffset); new Lduw(dst, o7).emit(masm); new Cmp(o7, o7).emit(masm); new Movcc(ConditionFlag.NotZero, CC.Icc, l7, sp).emit(masm); new Mov(i7, o7).emit(masm); new Jmpl(asRegister(handlerInCallerPc), 0, g0).emit(masm); new Nop().emit(masm); } }