--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.sparc/src/org/graalvm/compiler/lir/sparc/SPARCCall.java 2020-05-20 18:12:03.483964877 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,237 +0,0 @@ -/* - * Copyright (c) 2013, 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.lir.sparc; - -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL; -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; -import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; -import static jdk.vm.ci.code.ValueUtil.asRegister; -import static jdk.vm.ci.code.ValueUtil.isRegister; -import static jdk.vm.ci.sparc.SPARC.o7; - -import org.graalvm.compiler.asm.sparc.SPARCAddress; -import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; -import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler.ScratchRegister; -import org.graalvm.compiler.core.common.spi.ForeignCallLinkage; -import org.graalvm.compiler.debug.GraalError; -import org.graalvm.compiler.lir.LIRFrameState; -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.InvokeTarget; -import jdk.vm.ci.meta.ResolvedJavaMethod; -import jdk.vm.ci.meta.Value; - -public class SPARCCall { - - public abstract static class CallOp extends SPARCLIRInstruction { - @Def({REG, ILLEGAL}) protected Value result; - @Use({REG, STACK}) protected Value[] parameters; - @Temp({REG, STACK}) protected Value[] temps; - @State protected LIRFrameState state; - - protected CallOp(LIRInstructionClass c, SizeEstimate size, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(c, size); - this.result = result; - this.parameters = parameters; - this.state = state; - this.temps = addStackSlotsToTemporaries(parameters, temps); - assert temps != null; - } - - @Override - public boolean destroysCallerSavedRegisters() { - return true; - } - } - - public abstract static class MethodCallOp extends CallOp { - - protected final ResolvedJavaMethod callTarget; - - protected MethodCallOp(LIRInstructionClass c, SizeEstimate size, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(c, size, result, parameters, temps, state); - this.callTarget = callTarget; - } - - } - - @Opcode("CALL_DIRECT") - public abstract static class DirectCallOp extends MethodCallOp { - private boolean emitted = false; - private int before = -1; - - public DirectCallOp(LIRInstructionClass c, SizeEstimate size, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(c, size, callTarget, result, parameters, temps, state); - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - if (!emitted) { - emitCallPrefixCode(crb, masm); - directCall(crb, masm, callTarget, null, state); - } else { - int after = masm.position(); - if (after - before == 4) { - masm.nop(); - } else if (after - before == 8) { - // everything is fine; - } else { - GraalError.shouldNotReachHere("" + (after - before)); - } - after = masm.position(); - crb.recordDirectCall(before, after, callTarget, state); - crb.recordExceptionHandlers(after, state); - masm.ensureUniquePC(); - } - } - - @SuppressWarnings("unused") - public void emitCallPrefixCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - // - } - - public void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - assert !emitted; - emitCallPrefixCode(crb, masm); - before = masm.call(0); - emitted = true; - } - - public void resetState() { - emitted = false; - before = -1; - } - } - - @Opcode("CALL_INDIRECT") - public abstract static class IndirectCallOp extends MethodCallOp { - @Use({REG}) protected Value targetAddress; - - protected IndirectCallOp(LIRInstructionClass c, SizeEstimate size, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, - Value targetAddress, LIRFrameState state) { - super(c, size, callTarget, result, parameters, temps, state); - this.targetAddress = targetAddress; - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - indirectCall(crb, masm, asRegister(targetAddress), callTarget, state); - } - - @Override - public void verify() { - super.verify(); - assert isRegister(targetAddress) : "The current register allocator cannot handle variables to be used at call sites, it must be in a fixed register for now"; - } - } - - public abstract static class ForeignCallOp extends CallOp { - public static final LIRInstructionClass TYPE = LIRInstructionClass.create(ForeignCallOp.class); - - protected final ForeignCallLinkage callTarget; - - public ForeignCallOp(LIRInstructionClass c, SizeEstimate size, ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(c, size, result, parameters, temps, state); - this.callTarget = callTarget; - } - - @Override - public boolean destroysCallerSavedRegisters() { - return callTarget.destroysRegisters(); - } - } - - @Opcode("NEAR_FOREIGN_CALL") - public static final class DirectNearForeignCallOp extends ForeignCallOp { - public static final LIRInstructionClass TYPE = LIRInstructionClass.create(DirectNearForeignCallOp.class); - public static final SizeEstimate SIZE = SizeEstimate.create(1); - - public DirectNearForeignCallOp(ForeignCallLinkage linkage, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(TYPE, SIZE, linkage, result, parameters, temps, state); - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - directCall(crb, masm, callTarget, null, state); - } - } - - @Opcode("FAR_FOREIGN_CALL") - public static final class DirectFarForeignCallOp extends ForeignCallOp { - public static final LIRInstructionClass TYPE = LIRInstructionClass.create(DirectFarForeignCallOp.class); - public static final SizeEstimate SIZE = SizeEstimate.create(1); - - public DirectFarForeignCallOp(ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { - super(TYPE, SIZE, callTarget, result, parameters, temps, state); - } - - @Override - public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { - try (ScratchRegister scratch = masm.getScratchRegister()) { - directCall(crb, masm, callTarget, scratch.getRegister(), state); - } - } - } - - public static void directCall(CompilationResultBuilder crb, SPARCMacroAssembler masm, InvokeTarget callTarget, Register scratch, LIRFrameState info) { - int before; - if (scratch != null) { - // offset might not fit a 30-bit displacement, generate an - // indirect call with a 64-bit immediate - before = masm.position(); - masm.sethix(0L, scratch, true); - masm.jmpl(scratch, 0, o7); - } else { - before = masm.call(0); - } - masm.nop(); // delay slot - int after = masm.position(); - crb.recordDirectCall(before, after, callTarget, info); - crb.recordExceptionHandlers(after, info); - masm.ensureUniquePC(); - } - - public static void indirectJmp(CompilationResultBuilder crb, SPARCMacroAssembler masm, Register dst, InvokeTarget target) { - int before = masm.position(); - masm.sethix(0L, dst, true); - masm.jmp(new SPARCAddress(dst, 0)); - masm.nop(); // delay slot - int after = masm.position(); - crb.recordIndirectCall(before, after, target, null); - masm.ensureUniquePC(); - } - - public static void indirectCall(CompilationResultBuilder crb, SPARCMacroAssembler masm, Register dst, InvokeTarget callTarget, LIRFrameState info) { - int before = masm.jmpl(dst, 0, o7); - masm.nop(); // delay slot - int after = masm.position(); - crb.recordIndirectCall(before, after, callTarget, info); - crb.recordExceptionHandlers(after, info); - masm.ensureUniquePC(); - } -}