Mercurial > hg > graal-compiler
view graal/com.oracle.graal.compiler.common/src/com/oracle/graal/compiler/common/type/ArithmeticOpTable.java @ 18187:9619ba4daf4c
Rename Constant to JavaConstant.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Thu, 30 Oct 2014 12:21:07 +0100 |
parents | c88ab4f1f04a |
children | 8652481a1110 |
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/* * Copyright (c) 2014, 2014, 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.compiler.common.type; import java.util.*; import java.util.function.*; import java.util.stream.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.calc.*; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Add; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.And; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Div; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Mul; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Or; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Rem; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Sub; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.Xor; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.IntegerConvertOp.Narrow; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.IntegerConvertOp.SignExtend; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.IntegerConvertOp.ZeroExtend; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.UnaryOp.Neg; import com.oracle.graal.compiler.common.type.ArithmeticOpTable.UnaryOp.Not; /** * Information about arithmetic operations. */ public final class ArithmeticOpTable { private final UnaryOp<Neg> neg; private final BinaryOp<Add> add; private final BinaryOp<Sub> sub; private final BinaryOp<Mul> mul; private final BinaryOp<Div> div; private final BinaryOp<Rem> rem; private final UnaryOp<Not> not; private final BinaryOp<And> and; private final BinaryOp<Or> or; private final BinaryOp<Xor> xor; private final IntegerConvertOp<ZeroExtend> zeroExtend; private final IntegerConvertOp<SignExtend> signExtend; private final IntegerConvertOp<Narrow> narrow; private final FloatConvertOp[] floatConvert; public static ArithmeticOpTable forStamp(Stamp s) { if (s instanceof ArithmeticStamp) { return ((ArithmeticStamp) s).getOps(); } else { return EMPTY; } } public static final ArithmeticOpTable EMPTY = new ArithmeticOpTable(null, null, null, null, null, null, null, null, null, null, null, null, null); public ArithmeticOpTable(UnaryOp<Neg> neg, BinaryOp<Add> add, BinaryOp<Sub> sub, BinaryOp<Mul> mul, BinaryOp<Div> div, BinaryOp<Rem> rem, UnaryOp<Not> not, BinaryOp<And> and, BinaryOp<Or> or, BinaryOp<Xor> xor, IntegerConvertOp<ZeroExtend> zeroExtend, IntegerConvertOp<SignExtend> signExtend, IntegerConvertOp<Narrow> narrow, FloatConvertOp... floatConvert) { this(neg, add, sub, mul, div, rem, not, and, or, xor, zeroExtend, signExtend, narrow, Stream.of(floatConvert)); } public interface ArithmeticOpWrapper { <OP> UnaryOp<OP> wrapUnaryOp(UnaryOp<OP> op); <OP> BinaryOp<OP> wrapBinaryOp(BinaryOp<OP> op); <OP> IntegerConvertOp<OP> wrapIntegerConvertOp(IntegerConvertOp<OP> op); FloatConvertOp wrapFloatConvertOp(FloatConvertOp op); } private static <T> T wrapIfNonNull(Function<T, T> wrapper, T obj) { if (obj == null) { return null; } else { return wrapper.apply(obj); } } public static ArithmeticOpTable wrap(ArithmeticOpWrapper wrapper, ArithmeticOpTable inner) { UnaryOp<Neg> neg = wrapIfNonNull(wrapper::wrapUnaryOp, inner.getNeg()); BinaryOp<Add> add = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getAdd()); BinaryOp<Sub> sub = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getSub()); BinaryOp<Mul> mul = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getMul()); BinaryOp<Div> div = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getDiv()); BinaryOp<Rem> rem = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getRem()); UnaryOp<Not> not = wrapIfNonNull(wrapper::wrapUnaryOp, inner.getNot()); BinaryOp<And> and = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getAnd()); BinaryOp<Or> or = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getOr()); BinaryOp<Xor> xor = wrapIfNonNull(wrapper::wrapBinaryOp, inner.getXor()); IntegerConvertOp<ZeroExtend> zeroExtend = wrapIfNonNull(wrapper::wrapIntegerConvertOp, inner.getZeroExtend()); IntegerConvertOp<SignExtend> signExtend = wrapIfNonNull(wrapper::wrapIntegerConvertOp, inner.getSignExtend()); IntegerConvertOp<Narrow> narrow = wrapIfNonNull(wrapper::wrapIntegerConvertOp, inner.getNarrow()); Stream<FloatConvertOp> floatConvert = Stream.of(inner.floatConvert).filter(Objects::nonNull).map(wrapper::wrapFloatConvertOp); return new ArithmeticOpTable(neg, add, sub, mul, div, rem, not, and, or, xor, zeroExtend, signExtend, narrow, floatConvert); } private ArithmeticOpTable(UnaryOp<Neg> neg, BinaryOp<Add> add, BinaryOp<Sub> sub, BinaryOp<Mul> mul, BinaryOp<Div> div, BinaryOp<Rem> rem, UnaryOp<Not> not, BinaryOp<And> and, BinaryOp<Or> or, BinaryOp<Xor> xor, IntegerConvertOp<ZeroExtend> zeroExtend, IntegerConvertOp<SignExtend> signExtend, IntegerConvertOp<Narrow> narrow, Stream<FloatConvertOp> floatConvert) { this.neg = neg; this.add = add; this.sub = sub; this.mul = mul; this.div = div; this.rem = rem; this.not = not; this.and = and; this.or = or; this.xor = xor; this.zeroExtend = zeroExtend; this.signExtend = signExtend; this.narrow = narrow; this.floatConvert = new FloatConvertOp[FloatConvert.values().length]; floatConvert.forEach(op -> this.floatConvert[op.getFloatConvert().ordinal()] = op); } /** * Describes the unary negation operation. */ public UnaryOp<Neg> getNeg() { return neg; } /** * Describes the addition operation. */ public BinaryOp<Add> getAdd() { return add; } /** * Describes the subtraction operation. */ public BinaryOp<Sub> getSub() { return sub; } /** * Describes the multiplication operation. */ public BinaryOp<Mul> getMul() { return mul; } /** * Describes the division operation. */ public BinaryOp<Div> getDiv() { return div; } /** * Describes the remainder operation. */ public BinaryOp<Rem> getRem() { return rem; } /** * Describes the bitwise not operation. */ public UnaryOp<Not> getNot() { return not; } /** * Describes the bitwise and operation. */ public BinaryOp<And> getAnd() { return and; } /** * Describes the bitwise or operation. */ public BinaryOp<Or> getOr() { return or; } /** * Describes the bitwise xor operation. */ public BinaryOp<Xor> getXor() { return xor; } /** * Describes the zero extend conversion. */ public IntegerConvertOp<ZeroExtend> getZeroExtend() { return zeroExtend; } /** * Describes the sign extend conversion. */ public IntegerConvertOp<SignExtend> getSignExtend() { return signExtend; } /** * Describes the narrowing conversion. */ public IntegerConvertOp<Narrow> getNarrow() { return narrow; } /** * Describes integer/float/double conversions. */ public FloatConvertOp getFloatConvert(FloatConvert op) { return floatConvert[op.ordinal()]; } public abstract static class Op { private final String operator; protected Op(String operator) { this.operator = operator; } @Override public String toString() { return operator; } } /** * Describes a unary arithmetic operation. */ public abstract static class UnaryOp<T> extends Op { public abstract static class Neg extends UnaryOp<Neg> { protected Neg() { super("-"); } } public abstract static class Not extends UnaryOp<Not> { protected Not() { super("~"); } } protected UnaryOp(String operation) { super(operation); } /** * Apply the operation to a {@link JavaConstant}. */ public abstract JavaConstant foldConstant(JavaConstant value); /** * Apply the operation to a {@link Stamp}. */ public abstract Stamp foldStamp(Stamp stamp); } /** * Describes a binary arithmetic operation. */ public abstract static class BinaryOp<T> extends Op { public abstract static class Add extends BinaryOp<Add> { protected Add(boolean associative, boolean commutative) { super("+", associative, commutative); } } public abstract static class Sub extends BinaryOp<Sub> { protected Sub(boolean associative, boolean commutative) { super("-", associative, commutative); } } public abstract static class Mul extends BinaryOp<Mul> { protected Mul(boolean associative, boolean commutative) { super("*", associative, commutative); } } public abstract static class Div extends BinaryOp<Div> { protected Div(boolean associative, boolean commutative) { super("/", associative, commutative); } } public abstract static class Rem extends BinaryOp<Rem> { protected Rem(boolean associative, boolean commutative) { super("%", associative, commutative); } } public abstract static class And extends BinaryOp<And> { protected And(boolean associative, boolean commutative) { super("&", associative, commutative); } } public abstract static class Or extends BinaryOp<Or> { protected Or(boolean associative, boolean commutative) { super("|", associative, commutative); } } public abstract static class Xor extends BinaryOp<Xor> { protected Xor(boolean associative, boolean commutative) { super("^", associative, commutative); } } private final boolean associative; private final boolean commutative; protected BinaryOp(String operation, boolean associative, boolean commutative) { super(operation); this.associative = associative; this.commutative = commutative; } /** * Apply the operation to two {@linkplain JavaConstant Constants}. */ public abstract JavaConstant foldConstant(JavaConstant a, JavaConstant b); /** * Apply the operation to two {@linkplain Stamp Stamps}. */ public abstract Stamp foldStamp(Stamp a, Stamp b); /** * Checks whether this operation is associative. An operation is associative when * {@code (a . b) . c == a . (b . c)} for all a, b, c. Note that you still have to be * careful with inverses. For example the integer subtraction operation will report * {@code true} here, since you can still reassociate as long as the correct negations are * inserted. */ public final boolean isAssociative() { return associative; } /** * Checks whether this operation is commutative. An operation is commutative when * {@code a . b == b . a} for all a, b. */ public final boolean isCommutative() { return commutative; } /** * Check whether a {@link JavaConstant} is a neutral element for this operation. A neutral * element is any element {@code n} where {@code a . n == a} for all a. * * @param n the {@link JavaConstant} that should be tested * @return true iff for all {@code a}: {@code a . n == a} */ public boolean isNeutral(JavaConstant n) { return false; } /** * Check whether this operation has a zero {@code z == a . a} for each a. Examples of * operations having such an element are subtraction and exclusive-or. Note that this may be * different from the numbers tested by {@link #isNeutral}. * * @param stamp a {@link Stamp} * @return a unique {@code z} such that {@code z == a . a} for each {@code a} in * {@code stamp} if it exists, otherwise {@code null} */ public JavaConstant getZero(Stamp stamp) { return null; } } public abstract static class FloatConvertOp extends UnaryOp<FloatConvertOp> { private final FloatConvert op; protected FloatConvertOp(FloatConvert op) { super(op.name()); this.op = op; } public FloatConvert getFloatConvert() { return op; } } public abstract static class IntegerConvertOp<T> extends Op { public abstract static class ZeroExtend extends IntegerConvertOp<ZeroExtend> { protected ZeroExtend() { super("ZeroExtend"); } } public abstract static class SignExtend extends IntegerConvertOp<SignExtend> { protected SignExtend() { super("SignExtend"); } } public abstract static class Narrow extends IntegerConvertOp<Narrow> { protected Narrow() { super("Narrow"); } } protected IntegerConvertOp(String op) { super(op); } public abstract JavaConstant foldConstant(int inputBits, int resultBits, JavaConstant value); public abstract Stamp foldStamp(int inputBits, int resultBits, Stamp stamp); } }