Examples with LogicNegationNode org.graalvm.compiler.nodes.LogicNegationNode used on opensource projects

Example 1 with LogicNegationNode

use of org.graalvm.compiler.nodes.LogicNegationNode in project graal by oracle.

the class BytecodeParser method genIf.

protected void genIf(LogicNode conditionInput, BciBlock trueBlockInput, BciBlock falseBlockInput, double probabilityInput) {
    BciBlock trueBlock = trueBlockInput;
    BciBlock falseBlock = falseBlockInput;
    LogicNode condition = conditionInput;
    double probability = probabilityInput;
    FrameState stateBefore = null;
    ProfilingPlugin profilingPlugin = this.graphBuilderConfig.getPlugins().getProfilingPlugin();
    if (profilingPlugin != null && profilingPlugin.shouldProfile(this, method)) {
        stateBefore = frameState.create(bci(), getNonIntrinsicAncestor(), false, null, null);
    }
    // Remove a logic negation node.
    if (condition instanceof LogicNegationNode) {
        LogicNegationNode logicNegationNode = (LogicNegationNode) condition;
        BciBlock tmpBlock = trueBlock;
        trueBlock = falseBlock;
        falseBlock = tmpBlock;
        probability = 1 - probability;
        condition = logicNegationNode.getValue();
    }
    if (condition instanceof LogicConstantNode) {
        genConstantTargetIf(trueBlock, falseBlock, condition);
    } else {
        if (condition.graph() == null) {
            condition = genUnique(condition);
        }
        if (isNeverExecutedCode(probability)) {
            append(new FixedGuardNode(condition, UnreachedCode, InvalidateReprofile, true));
            if (profilingPlugin != null && profilingPlugin.shouldProfile(this, method)) {
                profilingPlugin.profileGoto(this, method, bci(), falseBlock.startBci, stateBefore);
            }
            appendGoto(falseBlock);
            return;
        } else if (isNeverExecutedCode(1 - probability)) {
            append(new FixedGuardNode(condition, UnreachedCode, InvalidateReprofile, false));
            if (profilingPlugin != null && profilingPlugin.shouldProfile(this, method)) {
                profilingPlugin.profileGoto(this, method, bci(), trueBlock.startBci, stateBefore);
            }
            appendGoto(trueBlock);
            return;
        }
        if (profilingPlugin != null && profilingPlugin.shouldProfile(this, method)) {
            profilingPlugin.profileIf(this, method, bci(), condition, trueBlock.startBci, falseBlock.startBci, stateBefore);
        }
        int oldBci = stream.currentBCI();
        int trueBlockInt = checkPositiveIntConstantPushed(trueBlock);
        if (trueBlockInt != -1) {
            int falseBlockInt = checkPositiveIntConstantPushed(falseBlock);
            if (falseBlockInt != -1) {
                if (tryGenConditionalForIf(trueBlock, falseBlock, condition, oldBci, trueBlockInt, falseBlockInt)) {
                    return;
                }
            }
        }
        this.controlFlowSplit = true;
        FixedNode trueSuccessor = createTarget(trueBlock, frameState, false, false);
        FixedNode falseSuccessor = createTarget(falseBlock, frameState, false, true);
        ValueNode ifNode = genIfNode(condition, trueSuccessor, falseSuccessor, probability);
        postProcessIfNode(ifNode);
        append(ifNode);
    }
}