--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.sparc/src/org/graalvm/compiler/hotspot/sparc/SPARCHotSpotJumpToExceptionHandlerInCallerOp.java 2020-05-01 02:30:43.577574946 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,83 +0,0 @@ -/* - * Copyright (c) 2012, 2018, 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 org.graalvm.compiler.hotspot.sparc; - -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; -import static jdk.vm.ci.code.ValueUtil.asRegister; -import static jdk.vm.ci.sparc.SPARC.g0; -import static jdk.vm.ci.sparc.SPARC.l7; -import static jdk.vm.ci.sparc.SPARC.sp; - -import org.graalvm.compiler.asm.sparc.SPARCAddress; -import org.graalvm.compiler.asm.sparc.SPARCAssembler.CC; -import org.graalvm.compiler.asm.sparc.SPARCAssembler.ConditionFlag; -import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; -import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister; -import org.graalvm.compiler.lir.LIRInstructionClass; -import org.graalvm.compiler.lir.Opcode; -import org.graalvm.compiler.lir.asm.CompilationResultBuilder; - -import jdk.vm.ci.code.Register; -import jdk.vm.ci.meta.AllocatableValue; - -/** - * 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 { - - public static final LIRInstructionClass TYPE = LIRInstructionClass.create(SPARCHotSpotJumpToExceptionHandlerInCallerOp.class); - public static final SizeEstimate SIZE = SizeEstimate.create(5); - - @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) { - super(TYPE, SIZE); - this.handlerInCallerPc = handlerInCallerPc; - this.exception = exception; - this.exceptionPc = exceptionPc; - this.isMethodHandleReturnOffset = isMethodHandleReturnOffset; - this.thread = thread; - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - // Restore SP from L7 if the exception PC is a method handle call site. - SPARCAddress dst = new SPARCAddress(thread, isMethodHandleReturnOffset); - try (ScratchRegister scratch = masm.getScratchRegister()) { - Register scratchReg = scratch.getRegister(); - masm.lduw(dst, scratchReg); - masm.cmp(scratchReg, scratchReg); - masm.movcc(ConditionFlag.NotZero, CC.Icc, l7, sp); - } - masm.jmpl(asRegister(handlerInCallerPc), 0, g0); - leaveFrame(crb); // Delay slot - } -}