--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.amd64/src/org/graalvm/compiler/lir/amd64/AMD64Call.java Thu Feb 16 15:46:09 2017 -0800
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 2011, 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.amd64;
+
+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 org.graalvm.compiler.lir.LIRValueUtil.differentRegisters;
+import static jdk.vm.ci.code.ValueUtil.asRegister;
+import static jdk.vm.ci.code.ValueUtil.isRegister;
+
+import org.graalvm.compiler.asm.amd64.AMD64Assembler.ConditionFlag;
+import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
+import org.graalvm.compiler.core.common.LIRKind;
+import org.graalvm.compiler.core.common.spi.ForeignCallLinkage;
+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 org.graalvm.compiler.lir.gen.DiagnosticLIRGeneratorTool.ZapRegistersAfterInstruction;
+
+import jdk.vm.ci.amd64.AMD64;
+import jdk.vm.ci.amd64.AMD64Kind;
+import jdk.vm.ci.code.Register;
+import jdk.vm.ci.code.RegisterValue;
+import jdk.vm.ci.meta.AllocatableValue;
+import jdk.vm.ci.meta.InvokeTarget;
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+import jdk.vm.ci.meta.Value;
+
+public class AMD64Call {
+
+ public abstract static class CallOp extends AMD64LIRInstruction {
+ public static final LIRInstructionClass<CallOp> TYPE = LIRInstructionClass.create(CallOp.class);
+
+ @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, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(c);
+ 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 {
+ public static final LIRInstructionClass<MethodCallOp> TYPE = LIRInstructionClass.create(MethodCallOp.class);
+
+ protected final ResolvedJavaMethod callTarget;
+
+ protected MethodCallOp(LIRInstructionClass<? extends MethodCallOp> c, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(c, result, parameters, temps, state);
+ this.callTarget = callTarget;
+ }
+
+ }
+
+ @Opcode("CALL_DIRECT")
+ public static class DirectCallOp extends MethodCallOp {
+ public static final LIRInstructionClass<DirectCallOp> TYPE = LIRInstructionClass.create(DirectCallOp.class);
+
+ public DirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ this(TYPE, callTarget, result, parameters, temps, state);
+ }
+
+ protected DirectCallOp(LIRInstructionClass<? extends DirectCallOp> c, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(c, callTarget, result, parameters, temps, state);
+ }
+
+ @Override
+ public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
+ directCall(crb, masm, callTarget, null, true, state);
+ }
+ }
+
+ @Opcode("CALL_INDIRECT")
+ public static class IndirectCallOp extends MethodCallOp {
+ public static final LIRInstructionClass<IndirectCallOp> TYPE = LIRInstructionClass.create(IndirectCallOp.class);
+
+ @Use({REG}) protected Value targetAddress;
+
+ public IndirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, Value targetAddress, LIRFrameState state) {
+ this(TYPE, callTarget, result, parameters, temps, targetAddress, state);
+ }
+
+ protected IndirectCallOp(LIRInstructionClass<? extends IndirectCallOp> c, ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, Value targetAddress,
+ LIRFrameState state) {
+ super(c, callTarget, result, parameters, temps, state);
+ this.targetAddress = targetAddress;
+ }
+
+ @Override
+ public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler 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 implements ZapRegistersAfterInstruction {
+ public static final LIRInstructionClass<ForeignCallOp> TYPE = LIRInstructionClass.create(ForeignCallOp.class);
+
+ protected final ForeignCallLinkage callTarget;
+
+ public ForeignCallOp(LIRInstructionClass<? extends ForeignCallOp> c, ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(c, 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 DirectNearForeignCallOp(ForeignCallLinkage linkage, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(TYPE, linkage, result, parameters, temps, state);
+ }
+
+ @Override
+ public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
+ directCall(crb, masm, callTarget, null, false, state);
+ }
+ }
+
+ @Opcode("FAR_FOREIGN_CALL")
+ public static final class DirectFarForeignCallOp extends ForeignCallOp {
+ public static final LIRInstructionClass<DirectFarForeignCallOp> TYPE = LIRInstructionClass.create(DirectFarForeignCallOp.class);
+
+ @Temp({REG}) protected AllocatableValue callTemp;
+
+ public DirectFarForeignCallOp(ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) {
+ super(TYPE, callTarget, result, parameters, temps, state);
+ /*
+ * The register allocator does not support virtual registers that are used at the call
+ * site, so use a fixed register.
+ */
+ callTemp = AMD64.rax.asValue(LIRKind.value(AMD64Kind.QWORD));
+ assert differentRegisters(parameters, callTemp);
+ }
+
+ @Override
+ public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
+ directCall(crb, masm, callTarget, ((RegisterValue) callTemp).getRegister(), false, state);
+ }
+ }
+
+ public static void directCall(CompilationResultBuilder crb, AMD64MacroAssembler masm, InvokeTarget callTarget, Register scratch, boolean align, LIRFrameState info) {
+ if (align) {
+ emitAlignmentForDirectCall(crb, masm);
+ }
+ int before = masm.position();
+ if (scratch != null) {
+ // offset might not fit a 32-bit immediate, generate an
+ // indirect call with a 64-bit immediate
+ masm.movq(scratch, 0L);
+ masm.call(scratch);
+ } else {
+ masm.call();
+ }
+ int after = masm.position();
+ crb.recordDirectCall(before, after, callTarget, info);
+ crb.recordExceptionHandlers(after, info);
+ masm.ensureUniquePC();
+ }
+
+ protected static void emitAlignmentForDirectCall(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
+ // make sure that the displacement word of the call ends up word aligned
+ int offset = masm.position();
+ offset += crb.target.arch.getMachineCodeCallDisplacementOffset();
+ int modulus = crb.target.wordSize;
+ if (offset % modulus != 0) {
+ masm.nop(modulus - offset % modulus);
+ }
+ }
+
+ public static void directJmp(CompilationResultBuilder crb, AMD64MacroAssembler masm, InvokeTarget target) {
+ int before = masm.position();
+ masm.jmp(0, true);
+ int after = masm.position();
+ crb.recordDirectCall(before, after, target, null);
+ masm.ensureUniquePC();
+ }
+
+ public static void directConditionalJmp(CompilationResultBuilder crb, AMD64MacroAssembler masm, InvokeTarget target, ConditionFlag cond) {
+ int before = masm.position();
+ masm.jcc(cond, 0, true);
+ int after = masm.position();
+ crb.recordDirectCall(before, after, target, null);
+ masm.ensureUniquePC();
+ }
+
+ public static void indirectCall(CompilationResultBuilder crb, AMD64MacroAssembler masm, Register dst, InvokeTarget callTarget, LIRFrameState info) {
+ int before = masm.position();
+ masm.call(dst);
+ int after = masm.position();
+ crb.recordIndirectCall(before, after, callTarget, info);
+ crb.recordExceptionHandlers(after, info);
+ masm.ensureUniquePC();
+ }
+}