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Java PrimitiveConstant类代码示例

本文整理汇总了Java中jdk.vm.ci.meta.PrimitiveConstant类的典型用法代码示例。如果您正苦于以下问题：Java PrimitiveConstant类的具体用法？Java PrimitiveConstant怎么用？Java PrimitiveConstant使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


PrimitiveConstant类属于jdk.vm.ci.meta包，在下文中一共展示了PrimitiveConstant类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: emitCCall

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public void emitCCall(long address, CallingConvention nativeCallingConvention, Value[] args, int numberOfFloatingPointArguments) {
    Value[] argLocations = new Value[args.length];
    getResult().getFrameMapBuilder().callsMethod(nativeCallingConvention);
    // TODO(mg): in case a native function uses floating point varargs, the ABI requires that
    // RAX contains the length of the varargs
    PrimitiveConstant intConst = JavaConstant.forInt(numberOfFloatingPointArguments);
    AllocatableValue numberOfFloatingPointArgumentsRegister = AMD64.rax.asValue(LIRKind.value(AMD64Kind.DWORD));
    emitMoveConstant(numberOfFloatingPointArgumentsRegister, intConst);
    for (int i = 0; i < args.length; i++) {
        Value arg = args[i];
        AllocatableValue loc = nativeCallingConvention.getArgument(i);
        emitMove(loc, arg);
        argLocations[i] = loc;
    }
    Value ptr = emitLoadConstant(LIRKind.value(AMD64Kind.QWORD), JavaConstant.forLong(address));
    append(new AMD64CCall(nativeCallingConvention.getReturn(), ptr, numberOfFloatingPointArgumentsRegister, argLocations));
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:19，代码来源:AMD64HotSpotLIRGenerator.java

示例2: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(XorNode self, BinaryOp<Xor> op, Stamp stamp, ValueNode forX, ValueNode forY) {
    if (GraphUtil.unproxify(forX) == GraphUtil.unproxify(forY)) {
        return ConstantNode.forPrimitive(stamp, op.getZero(forX.stamp()));
    }
    if (forX.isConstant() && !forY.isConstant()) {
        return new XorNode(forY, forX);
    }
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (op.isNeutral(c)) {
            return forX;
        }

        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long rawY = ((PrimitiveConstant) c).asLong();
            long mask = CodeUtil.mask(PrimitiveStamp.getBits(stamp));
            if ((rawY & mask) == mask) {
                return new NotNode(forX);
            }
        }
        return reassociate(self != null ? self : (XorNode) new XorNode(forX, forY).maybeCommuteInputs(), ValueNode.isConstantPredicate(), forX, forY);
    }
    return self != null ? self : new XorNode(forX, forY).maybeCommuteInputs();
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:25，代码来源:XorNode.java

示例3: updateAlignedDisjoint

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
public void updateAlignedDisjoint() {
    JavaKind componentKind = elementKind;
    if (srcPos == destPos) {
        // Can treat as disjoint
        disjoint = true;
    }
    PrimitiveConstant constantSrc = (PrimitiveConstant) srcPos.stamp().asConstant();
    PrimitiveConstant constantDst = (PrimitiveConstant) destPos.stamp().asConstant();
    if (constantSrc != null && constantDst != null) {
        if (!aligned) {
            aligned = isHeapWordAligned(constantSrc, componentKind) && isHeapWordAligned(constantDst, componentKind);
        }
        if (constantSrc.asInt() >= constantDst.asInt()) {
            // low to high copy so treat as disjoint
            disjoint = true;
        }
    }
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:19，代码来源:ArrayCopyCallNode.java

示例4: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(UnsignedMulHighNode self, ValueNode forY) {
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long i = ((PrimitiveConstant) c).asLong();
            if (i == 0 || i == 1) {
                return ConstantNode.forIntegerStamp(self.stamp(), 0);
            }
        }
    }
    return self;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:13，代码来源:UnsignedMulHighNode.java

示例5: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(IntegerMulHighNode self, ValueNode forY) {
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long i = ((PrimitiveConstant) c).asLong();
            if (i == 0 || i == 1) {
                return ConstantNode.forIntegerStamp(self.stamp(), 0);
            }
        }
    }
    return self;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:13，代码来源:IntegerMulHighNode.java

示例6: isCompatible

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public boolean isCompatible(Constant constant) {
    if (constant instanceof PrimitiveConstant) {
        PrimitiveConstant prim = (PrimitiveConstant) constant;
        return prim.getJavaKind().isNumericFloat();
    }
    return false;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:9，代码来源:FloatStamp.java

示例7: constant

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public Stamp constant(Constant c, MetaAccessProvider meta) {
    if (c instanceof PrimitiveConstant) {
        long value = ((PrimitiveConstant) c).asLong();
        return StampFactory.forInteger(getBits(), value, value);
    }
    return this;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:9，代码来源:IntegerStamp.java

示例8: isCompatible

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public boolean isCompatible(Constant constant) {
    if (constant instanceof PrimitiveConstant) {
        PrimitiveConstant prim = (PrimitiveConstant) constant;
        return prim.getJavaKind().isNumericInteger();
    }
    return false;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:9，代码来源:IntegerStamp.java

示例9: isCompatible

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public boolean isCompatible(Constant constant) {
    if (constant instanceof PrimitiveConstant) {
        PrimitiveConstant prim = (PrimitiveConstant) constant;
        return prim.getJavaKind() == JavaKind.Illegal;
    }
    return false;
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:9，代码来源:IllegalStamp.java

示例10: isCompatible

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public boolean isCompatible(Constant constant) {
    if (constant instanceof PrimitiveConstant) {
        return ((PrimitiveConstant) constant).getJavaKind().isNumericInteger();
    } else {
        return constant instanceof DataPointerConstant;
    }
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:9，代码来源:RawPointerStamp.java

示例11: generate

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
public void generate(LIRGeneratorTool gen) {
    FrameMapBuilder frameMapBuilder = gen.getResult().getFrameMapBuilder();
    // create slots
    PrimitiveConstant constantValue = JavaConstant.forBoxedPrimitive(primitive);
    VirtualStackSlot s1 = frameMapBuilder.allocateSpillSlot(LIRKind.fromJavaKind(gen.target().arch, constantValue.getJavaKind()));
    // move stuff around
    gen.emitMoveConstant(s1, constantValue);
    gen.emitBlackhole(s1);
    setResult(gen.emitMove(s1));
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:12，代码来源:ConstantStackMoveTest.java

示例12: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(AndNode self, BinaryOp<And> op, Stamp stamp, ValueNode forX, ValueNode forY) {
    if (GraphUtil.unproxify(forX) == GraphUtil.unproxify(forY)) {
        return forX;
    }
    if (forX.isConstant() && !forY.isConstant()) {
        return new AndNode(forY, forX);
    }
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (op.isNeutral(c)) {
            return forX;
        }

        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long rawY = ((PrimitiveConstant) c).asLong();
            long mask = CodeUtil.mask(PrimitiveStamp.getBits(stamp));
            if ((rawY & mask) == 0) {
                return ConstantNode.forIntegerStamp(stamp, 0);
            }
            if (forX instanceof SignExtendNode) {
                SignExtendNode ext = (SignExtendNode) forX;
                if (rawY == ((1L << ext.getInputBits()) - 1)) {
                    return new ZeroExtendNode(ext.getValue(), ext.getResultBits());
                }
            }
            IntegerStamp xStamp = (IntegerStamp) forX.stamp();
            if (((xStamp.upMask() | xStamp.downMask()) & ~rawY) == 0) {
                // No bits are set which are outside the mask, so the mask will have no effect.
                return forX;
            }
        }

        return reassociate(self != null ? self : (AndNode) new AndNode(forX, forY).maybeCommuteInputs(), ValueNode.isConstantPredicate(), forX, forY);
    }
    if (forX instanceof NotNode && forY instanceof NotNode) {
        return new NotNode(OrNode.create(((NotNode) forX).getValue(), ((NotNode) forY).getValue()));
    }
    return self != null ? self : new AndNode(forX, forY).maybeCommuteInputs();
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:40，代码来源:AndNode.java

示例13: optimizeNormalizeCompare

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
@Override
protected LogicNode optimizeNormalizeCompare(ConstantReflectionProvider constantReflection, MetaAccessProvider metaAccess, OptionValues options, Integer smallestCompareWidth,
                Constant constant, NormalizeCompareNode normalizeNode, boolean mirrored) {
    PrimitiveConstant primitive = (PrimitiveConstant) constant;
    ValueNode a = normalizeNode.getX();
    ValueNode b = normalizeNode.getY();
    long cst = primitive.asLong();

    if (cst == 0) {
        if (normalizeNode.getX().getStackKind() == JavaKind.Double || normalizeNode.getX().getStackKind() == JavaKind.Float) {
            return FloatEqualsNode.create(constantReflection, metaAccess, options, smallestCompareWidth, a, b);
        } else {
            return IntegerEqualsNode.create(constantReflection, metaAccess, options, smallestCompareWidth, a, b);
        }
    } else if (cst == 1) {
        if (normalizeNode.getX().getStackKind() == JavaKind.Double || normalizeNode.getX().getStackKind() == JavaKind.Float) {
            return FloatLessThanNode.create(b, a, !normalizeNode.isUnorderedLess);
        } else {
            return IntegerLessThanNode.create(constantReflection, metaAccess, options, smallestCompareWidth, b, a);
        }
    } else if (cst == -1) {
        if (normalizeNode.getX().getStackKind() == JavaKind.Double || normalizeNode.getX().getStackKind() == JavaKind.Float) {
            return FloatLessThanNode.create(a, b, normalizeNode.isUnorderedLess);
        } else {
            return IntegerLessThanNode.create(constantReflection, metaAccess, options, smallestCompareWidth, a, b);
        }
    } else {
        return LogicConstantNode.contradiction();
    }
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:31，代码来源:IntegerEqualsNode.java

示例14: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(DivNode self, BinaryOp<Div> op, ValueNode forX, ValueNode forY) {
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (op.isNeutral(c)) {
            return forX;
        }
        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long i = ((PrimitiveConstant) c).asLong();
            boolean signFlip = false;
            if (i < 0) {
                i = -i;
                signFlip = true;
            }
            ValueNode divResult = null;
            if (CodeUtil.isPowerOf2(i)) {
                divResult = new RightShiftNode(forX, ConstantNode.forInt(CodeUtil.log2(i)));
            }
            if (divResult != null) {
                if (signFlip) {
                    return NegateNode.create(divResult);
                } else {
                    return divResult;
                }
            }
        }
    }
    return self != null ? self : new DivNode(forX, forY);
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:29，代码来源:DivNode.java

示例15: canonical

import jdk.vm.ci.meta.PrimitiveConstant; //导入依赖的package包/类
private static ValueNode canonical(OrNode self, BinaryOp<Or> op, Stamp stamp, ValueNode forX, ValueNode forY) {
    if (GraphUtil.unproxify(forX) == GraphUtil.unproxify(forY)) {
        return forX;
    }
    if (forX.isConstant() && !forY.isConstant()) {
        return new OrNode(forY, forX);
    }
    if (forY.isConstant()) {
        Constant c = forY.asConstant();
        if (op.isNeutral(c)) {
            return forX;
        }

        if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getJavaKind().isNumericInteger()) {
            long rawY = ((PrimitiveConstant) c).asLong();
            long mask = CodeUtil.mask(PrimitiveStamp.getBits(stamp));
            if ((rawY & mask) == mask) {
                return ConstantNode.forIntegerStamp(stamp, mask);
            }
        }
        return reassociate(self != null ? self : (OrNode) new OrNode(forX, forY).maybeCommuteInputs(), ValueNode.isConstantPredicate(), forX, forY);
    }
    if (forX instanceof NotNode && forY instanceof NotNode) {
        return new NotNode(AndNode.create(((NotNode) forX).getValue(), ((NotNode) forY).getValue()));
    }
    return self != null ? self : new OrNode(forX, forY).maybeCommuteInputs();
}
开发者ID:AdoptOpenJDK，项目名称:openjdk-jdk10，代码行数:28，代码来源:OrNode.java


注：本文中的jdk.vm.ci.meta.PrimitiveConstant类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。