changeset 9294:899295127bc4

Get rid of the distinction between UNUSED and ILLEGAL value.
author Roland Schatz <roland.schatz@oracle.com>
date Thu, 25 Apr 2013 16:12:31 +0200
parents d006c9920e94
children 8f46f129d7b6
files graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/AllocatableValue.java graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/AllocatableValue.java graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java graal/com.oracle.graal.compiler.ptx/src/com/oracle/graal/compiler/ptx/PTXLIRGenerator.java graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotUnwindOp.java graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64SafepointOp.java graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64AddressValue.java graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Arithmetic.java graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64BitManipulationOp.java graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXAddressValue.java graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXArithmetic.java graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRInstruction.java graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRVerifier.java src/share/vm/graal/graalJavaAccess.hpp
diffstat 15 files changed, 65 insertions(+), 89 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/AllocatableValue.java	Thu Apr 25 16:12:06 2013 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,50 +0,0 @@
-/*
- * Copyright (c) 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.api.code;
-
-import com.oracle.graal.api.meta.*;
-
-/**
- * Common base class for values that can be manipulated by the register allocator.
- */
-public abstract class AllocatableValue extends Value {
-
-    private static final long serialVersionUID = 153019506717492133L;
-
-    /**
-     * Marker to tell the register allocator that no storage location needs to be allocated for this
-     * value.
-     */
-    @SuppressWarnings("serial") public static final AllocatableValue UNUSED = new AllocatableValue(Kind.Illegal) {
-
-        @Override
-        public String toString() {
-            return "-";
-        }
-    };
-
-    public AllocatableValue(Kind kind) {
-        super(kind);
-    }
-
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/AllocatableValue.java	Thu Apr 25 16:12:31 2013 +0200
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 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.api.meta;
+
+/**
+ * Common base class for values that are stored in some location that's managed by the register
+ * allocator (e.g. register, stack slot).
+ */
+public abstract class AllocatableValue extends Value {
+
+    private static final long serialVersionUID = 153019506717492133L;
+
+    public AllocatableValue(Kind kind) {
+        super(kind);
+    }
+
+}
--- a/graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Value.java	Thu Apr 25 16:12:31 2013 +0200
@@ -34,7 +34,7 @@
 
     public static final Value[] NONE = {};
 
-    @SuppressWarnings("serial") public static final Value ILLEGAL = new Value(Kind.Illegal) {
+    @SuppressWarnings("serial") public static final AllocatableValue ILLEGAL = new AllocatableValue(Kind.Illegal) {
 
         @Override
         public String toString() {
--- a/graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java	Thu Apr 25 16:12:31 2013 +0200
@@ -161,15 +161,13 @@
         long finalDisp = displacement;
         if (isConstant(base)) {
             if (asConstant(base).isNull()) {
-                baseRegister = AllocatableValue.UNUSED;
+                baseRegister = Value.ILLEGAL;
             } else if (asConstant(base).getKind() != Kind.Object && !runtime.needsDataPatch(asConstant(base))) {
                 finalDisp += asConstant(base).asLong();
-                baseRegister = AllocatableValue.UNUSED;
+                baseRegister = Value.ILLEGAL;
             } else {
                 baseRegister = load(base);
             }
-        } else if (base == Value.ILLEGAL) {
-            baseRegister = AllocatableValue.UNUSED;
         } else {
             baseRegister = asAllocatable(base);
         }
@@ -180,12 +178,12 @@
             scaleEnum = Scale.fromInt(scale);
             if (isConstant(index)) {
                 finalDisp += asConstant(index).asLong() * scale;
-                indexRegister = AllocatableValue.UNUSED;
+                indexRegister = Value.ILLEGAL;
             } else {
                 indexRegister = asAllocatable(index);
             }
         } else {
-            indexRegister = AllocatableValue.UNUSED;
+            indexRegister = Value.ILLEGAL;
             scaleEnum = Scale.Times1;
         }
 
@@ -195,9 +193,9 @@
         } else {
             displacementInt = 0;
             AllocatableValue displacementRegister = load(Constant.forLong(finalDisp));
-            if (baseRegister == AllocatableValue.UNUSED) {
+            if (baseRegister == Value.ILLEGAL) {
                 baseRegister = displacementRegister;
-            } else if (indexRegister == AllocatableValue.UNUSED) {
+            } else if (indexRegister == Value.ILLEGAL) {
                 indexRegister = displacementRegister;
                 scaleEnum = Scale.Times1;
             } else {
--- a/graal/com.oracle.graal.compiler.ptx/src/com/oracle/graal/compiler/ptx/PTXLIRGenerator.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.compiler.ptx/src/com/oracle/graal/compiler/ptx/PTXLIRGenerator.java	Thu Apr 25 16:12:31 2013 +0200
@@ -28,17 +28,13 @@
 import static com.oracle.graal.lir.ptx.PTXBitManipulationOp.IntrinsicOpcode.*;
 import static com.oracle.graal.lir.ptx.PTXCompare.*;
 
-import com.oracle.graal.api.code.AllocatableValue;
 import com.oracle.graal.api.code.CodeCacheProvider;
 import com.oracle.graal.api.code.DeoptimizationAction;
 import com.oracle.graal.api.code.RuntimeCallTarget;
 import com.oracle.graal.api.code.StackSlot;
 import com.oracle.graal.api.code.TargetDescription;
 import com.oracle.graal.api.code.RuntimeCallTarget.Descriptor;
-import com.oracle.graal.api.meta.Constant;
-import com.oracle.graal.api.meta.Kind;
-import com.oracle.graal.api.meta.ResolvedJavaMethod;
-import com.oracle.graal.api.meta.Value;
+import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.NumUtil;
 import com.oracle.graal.compiler.gen.LIRGenerator;
 import com.oracle.graal.compiler.target.LIRGenLowerable;
@@ -142,15 +138,13 @@
         long finalDisp = displacement;
         if (isConstant(base)) {
             if (asConstant(base).isNull()) {
-                baseRegister = AllocatableValue.UNUSED;
+                baseRegister = Value.ILLEGAL;
             } else if (asConstant(base).getKind() != Kind.Object) {
                 finalDisp += asConstant(base).asLong();
-                baseRegister = AllocatableValue.UNUSED;
+                baseRegister = Value.ILLEGAL;
             } else {
                 baseRegister = load(base);
             }
-        } else if (base == Value.ILLEGAL) {
-            baseRegister = AllocatableValue.UNUSED;
         } else {
             baseRegister = asAllocatable(base);
         }
@@ -166,7 +160,7 @@
                     indexRegister = index;
                 }
 
-                if (baseRegister == AllocatableValue.UNUSED) {
+                if (baseRegister == Value.ILLEGAL) {
                     baseRegister = asAllocatable(indexRegister);
                 } else {
                     Variable newBase = newVariable(Kind.Int);
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotUnwindOp.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotUnwindOp.java	Thu Apr 25 16:12:31 2013 +0200
@@ -29,6 +29,7 @@
 import com.oracle.graal.amd64.*;
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.code.RuntimeCallTarget.Descriptor;
+import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.amd64.*;
 import com.oracle.graal.lir.LIRInstruction.Opcode;
 import com.oracle.graal.lir.amd64.*;
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64SafepointOp.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64SafepointOp.java	Thu Apr 25 16:12:31 2013 +0200
@@ -27,6 +27,7 @@
 import sun.misc.*;
 
 import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.amd64.*;
 import com.oracle.graal.hotspot.*;
 import com.oracle.graal.hotspot.bridge.*;
--- a/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64AddressValue.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64AddressValue.java	Thu Apr 25 16:12:31 2013 +0200
@@ -30,18 +30,19 @@
 import com.oracle.graal.asm.amd64.*;
 import com.oracle.graal.asm.amd64.AMD64Address.Scale;
 import com.oracle.graal.lir.*;
+import com.oracle.graal.lir.LIRInstruction.OperandFlag;
 
 public class AMD64AddressValue extends CompositeValue {
 
     private static final long serialVersionUID = -4444600052487578694L;
 
-    @Component({REG, UNUSED}) protected AllocatableValue base;
-    @Component({REG, UNUSED}) protected AllocatableValue index;
+    @Component({REG, OperandFlag.ILLEGAL}) protected AllocatableValue base;
+    @Component({REG, OperandFlag.ILLEGAL}) protected AllocatableValue index;
     protected final Scale scale;
     protected final int displacement;
 
     public AMD64AddressValue(Kind kind, AllocatableValue base, int displacement) {
-        this(kind, base, AllocatableValue.UNUSED, Scale.Times1, displacement);
+        this(kind, base, Value.ILLEGAL, Scale.Times1, displacement);
     }
 
     public AMD64AddressValue(Kind kind, AllocatableValue base, AllocatableValue index, Scale scale, int displacement) {
@@ -53,7 +54,7 @@
     }
 
     private static Register toRegister(AllocatableValue value) {
-        if (value == AllocatableValue.UNUSED) {
+        if (value == Value.ILLEGAL) {
             return Register.None;
         } else {
             RegisterValue reg = (RegisterValue) value;
--- a/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Arithmetic.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Arithmetic.java	Thu Apr 25 16:12:31 2013 +0200
@@ -26,7 +26,6 @@
 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
 
 import com.oracle.graal.amd64.*;
-import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.amd64.*;
 import com.oracle.graal.graph.*;
--- a/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64BitManipulationOp.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64BitManipulationOp.java	Thu Apr 25 16:12:31 2013 +0200
@@ -23,6 +23,7 @@
 package com.oracle.graal.lir.amd64;
 
 import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.amd64.*;
 import com.oracle.graal.lir.asm.*;
 
--- a/graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXAddressValue.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXAddressValue.java	Thu Apr 25 16:12:31 2013 +0200
@@ -29,6 +29,7 @@
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.ptx.*;
 import com.oracle.graal.lir.*;
+import com.oracle.graal.lir.LIRInstruction.OperandFlag;
 
 /**
  * Represents an address in target machine memory, specified via some combination of a base register
@@ -38,7 +39,7 @@
 
     private static final long serialVersionUID = 1802222435353022623L;
 
-    @Component({REG, UNUSED}) private AllocatableValue base;
+    @Component({REG, OperandFlag.ILLEGAL}) private AllocatableValue base;
     private final long displacement;
 
     /**
@@ -68,7 +69,7 @@
     }
 
     public PTXAddress toAddress() {
-        Register baseReg = base == AllocatableValue.UNUSED ? Register.None : asRegister(base);
+        Register baseReg = base == Value.ILLEGAL ? Register.None : asRegister(base);
         return new PTXAddress(baseReg, displacement);
     }
 
--- a/graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXArithmetic.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir.ptx/src/com/oracle/graal/lir/ptx/PTXArithmetic.java	Thu Apr 25 16:12:31 2013 +0200
@@ -25,7 +25,6 @@
 import static com.oracle.graal.api.code.ValueUtil.*;
 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
 
-import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.asm.ptx.*;
 import com.oracle.graal.graph.*;
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRInstruction.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRInstruction.java	Thu Apr 25 16:12:31 2013 +0200
@@ -181,11 +181,6 @@
         ILLEGAL,
 
         /**
-         * The value can be {@link AllocatableValue#UNUSED}.
-         */
-        UNUSED,
-
-        /**
          * The register allocator should try to assign a certain register to improve code quality.
          * Use {@link LIRInstruction#forEachRegisterHint} to access the register hints.
          */
@@ -205,10 +200,10 @@
 
     static {
         ALLOWED_FLAGS = new EnumMap<>(OperandMode.class);
-        ALLOWED_FLAGS.put(USE, EnumSet.of(REG, STACK, COMPOSITE, CONST, ILLEGAL, HINT, UNUSED, UNINITIALIZED));
-        ALLOWED_FLAGS.put(ALIVE, EnumSet.of(REG, STACK, COMPOSITE, CONST, ILLEGAL, HINT, UNUSED, UNINITIALIZED));
-        ALLOWED_FLAGS.put(TEMP, EnumSet.of(REG, COMPOSITE, CONST, ILLEGAL, UNUSED, HINT));
-        ALLOWED_FLAGS.put(DEF, EnumSet.of(REG, STACK, COMPOSITE, ILLEGAL, UNUSED, HINT));
+        ALLOWED_FLAGS.put(USE, EnumSet.of(REG, STACK, COMPOSITE, CONST, ILLEGAL, HINT, UNINITIALIZED));
+        ALLOWED_FLAGS.put(ALIVE, EnumSet.of(REG, STACK, COMPOSITE, CONST, ILLEGAL, HINT, UNINITIALIZED));
+        ALLOWED_FLAGS.put(TEMP, EnumSet.of(REG, COMPOSITE, CONST, ILLEGAL, HINT));
+        ALLOWED_FLAGS.put(DEF, EnumSet.of(REG, STACK, COMPOSITE, ILLEGAL, HINT));
     }
 
     /**
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRVerifier.java	Thu Apr 25 16:12:06 2013 +0200
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/LIRVerifier.java	Thu Apr 25 16:12:31 2013 +0200
@@ -232,8 +232,7 @@
 
     private static Value allowed(Object op, Value value, OperandMode mode, EnumSet<OperandFlag> flags) {
         if ((isVariable(value) && flags.contains(OperandFlag.REG)) || (isRegister(value) && flags.contains(OperandFlag.REG)) || (isStackSlot(value) && flags.contains(OperandFlag.STACK)) ||
-                        (isConstant(value) && flags.contains(OperandFlag.CONST) && mode != OperandMode.DEF) || (isIllegal(value) && flags.contains(OperandFlag.ILLEGAL)) ||
-                        (value == AllocatableValue.UNUSED && flags.contains(OperandFlag.UNUSED))) {
+                        (isConstant(value) && flags.contains(OperandFlag.CONST) && mode != OperandMode.DEF) || (isIllegal(value) && flags.contains(OperandFlag.ILLEGAL))) {
             return value;
         }
         TTY.println("instruction %s", op);
--- a/src/share/vm/graal/graalJavaAccess.hpp	Thu Apr 25 16:12:06 2013 +0200
+++ b/src/share/vm/graal/graalJavaAccess.hpp	Thu Apr 25 16:12:31 2013 +0200
@@ -197,7 +197,7 @@
   end_class                                                                                                                                                    \
   start_class(Value)                                                                                                                                           \
     oop_field(Value, kind, "Lcom/oracle/graal/api/meta/Kind;")                                                                                                 \
-    static_oop_field(Value, ILLEGAL, "Lcom/oracle/graal/api/meta/Value;");                                                                                     \
+    static_oop_field(Value, ILLEGAL, "Lcom/oracle/graal/api/meta/AllocatableValue;");                                                                          \
   end_class                                                                                                                                                    \
   start_class(RegisterValue)                                                                                                                                   \
     oop_field(RegisterValue, reg, "Lcom/oracle/graal/api/code/Register;")                                                                                      \