| /* |
| * Copyright (c) 2013, 2015, 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<? extends CallOp> 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<? extends MethodCallOp> 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<? extends DirectCallOp> 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<? extends IndirectCallOp> 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<ForeignCallOp> TYPE = LIRInstructionClass.create(ForeignCallOp.class); |
| |
| protected final ForeignCallLinkage callTarget; |
| |
| public ForeignCallOp(LIRInstructionClass<? extends ForeignCallOp> 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<DirectNearForeignCallOp> 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<DirectFarForeignCallOp> 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(); |
| } |
| } |
