Examples of IRClosure

Examples of org.jruby.compiler.ir.IRClosure

                Operand o = call.getClosureArg();
                if ((o != null) && (o instanceof MetaObject)) {
                    // At this call site, a binding will get allocated if it has not been already!
                    bindingAllocated = true;


                    IRClosure cl = (IRClosure) ((MetaObject) o).scope;
                    CFG cl_cfg = cl.getCFG();
                    BindingStorePlacementProblem cl_bsp = new BindingStorePlacementProblem();
                    cl_bsp.setup(cl_cfg);
                    cl_bsp.compute_MOP_Solution();
                    cl_cfg.setDataFlowSolution(cl_bsp.getName(), cl_bsp);

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Examples of org.jruby.compiler.ir.IRClosure

                // so that the built closure from the previous instr. is propagated to the call site here.
                // Formalize this dependency somewhere?
                Operand o = c.getClosureArg();
//                   System.out.println("Processing closure: " + o + "-------");
                if ((o != null) && (o instanceof MetaObject)) {
                    IRClosure cl = (IRClosure)((MetaObject)o).scope;
                    if (c.isLVADataflowBarrier()) {
                        processClosure(cl, lvp.getAllVars());


                        // Mark all variables live if 'c' is a dataflow barrier!
//                        System.out.println(".. call is a data flow barrier ..");

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Examples of org.jruby.compiler.ir.IRClosure

                }
                else {
                    Operand o = c.getClosureArg();
                    if ((o != null) && (o instanceof MetaObject)) {
                        // 2. Run LVA on the closure
                        IRClosure cl = (IRClosure)((MetaObject)o).scope;
                        CFG x = cl.getCFG();
                        LiveVariablesProblem xlvp = (LiveVariablesProblem)x.getDataFlowSolution(lvp.getName());
                        // 3. Collect variables live on entry and merge that info into the current problem.
                        for (Variable y: xlvp.getVarsLiveOnEntry()) {
                            DataFlowVar dv = lvp.getDFVar(y);
                            // This can be null for vars used, but not defined!  Yes, the source program is buggy ..

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Examples of org.jruby.compiler.ir.IRClosure

            // Process calls specially -- these are the sites of binding loads!
            if (i instanceof CallInstr) {
                CallInstr call = (CallInstr) i;
                Operand o = call.getClosureArg();
                if ((o != null) && (o instanceof MetaObject)) {
                    IRClosure cl = (IRClosure) ((MetaObject) o).scope;
                    CFG cl_cfg = cl.getCFG();
                    BindingLoadPlacementProblem cl_blp = new BindingLoadPlacementProblem();
                    cl_blp.initLoadsOnScopeExit(reqdLoads);
                    cl_blp.setup(cl_cfg);
                    cl_blp.compute_MOP_Solution();
                    cl_cfg.setDataFlowSolution(cl_blp.getName(), cl_blp);

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Examples of org.jruby.compiler.ir.IRClosure

        if (closure != null) {
            // Can be a symbol .. ex: [1,2,3,4].map(&:foo)
            // SSS FIXME: Is it true that if the closure operand is a symbol, it couldn't access the caller's binding?
            if (!(closure instanceof MetaObject)) return false;


            IRClosure cl = (IRClosure) ((MetaObject) closure).scope;
            if (cl.requiresBinding() /*|| cl.canCaptureCallersBinding()*/) return true;
        }


        // Check if we are calling Proc.new or lambda
        String mname = getMethodAddr().getName();

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Examples of org.jruby.ir.IRClosure

        // SSS FIXME: Copied this from ast/LambdaNode ... Is this required here as well?
        //
        // JRUBY-5686: do this before executing so first time sets cref module
        getLambdaBody().getStaticScope().determineModule();


        IRClosure body = getLambdaBody();
        // ENEBO: Now can live nil be passed as block reference?
        return RubyProc.newProc(context.runtime,
                (Block) (body == null ? context.runtime.getIRManager().getNil() : operands[0]).retrieve(context, self, currDynScope, temp),
                Block.Type.LAMBDA, position);
    }

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Examples of org.jruby.ir.IRClosure

                if (o != null && o instanceof WrappedIRClosure) {
                    // In this first pass, the current scope and the call's closure are considered
                    // independent of each other which means any variable that is used by the variable
                    // will get spilled into the binding.  This is clearly conservative, but simplifies
                    // the analysis.
                    IRClosure cl = ((WrappedIRClosure) o).getClosure();


                    // If the call is a dataflow barrier, we have to spill everything here
                    boolean spillAllVars = scopeBindingHasEscaped || call.targetRequiresCallersBinding();


                    // - If all variables have to be spilled, then those variables will no longer be dirty after the call site
                    // - If a variable is used in the closure (FIXME: Strictly only those vars that are live at the call site -- 
                    //   but we dont have this info!), it has to be spilt. So, these variables are no longer dirty after the call site.
                    // - If a variable is (re)defined in the closure, it will always be loaded after the call. So, we have to always
                    //   spill it before the call in the scenario that the closure never gets executed! So, it won't be dirty after
                    //   the call site.
                    Set<LocalVariable> newDirtyVars = new HashSet<LocalVariable>(dirtyVars);
                    for (LocalVariable v : dirtyVars) {
                        if (spillAllVars || cl.usesLocalVariable(v) || cl.definesLocalVariable(v)) {
                            newDirtyVars.remove(v);
                        }
                    }
                    dirtyVars = newDirtyVars;
                } else if (scopeBindingHasEscaped || call.targetRequiresCallersBinding()) { // Call has no closure && it requires stores

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Examples of org.jruby.ir.IRClosure


            if (i instanceof CallBase) {
                CallBase call = (CallBase) i;
                Operand o = call.getClosureArg(null);
                if (o != null && o instanceof WrappedIRClosure) {
                    IRClosure cl = ((WrappedIRClosure) o).getClosure();


                    // Add before call -- hence instrs.previous & instrs.next
                    instrs.previous();


                    // If the call is a dataflow barrier, we have to spill everything here
                    boolean spillAllVars = scopeBindingHasEscaped || call.targetRequiresCallersBinding();


                    // Unless we have to spill everything, spill only those dirty variables that are:
                    // - used in the closure (FIXME: Strictly only those vars that are live at the call site -- but we dont have this info!)
                    Set<LocalVariable> newDirtyVars = new HashSet<LocalVariable>(dirtyVars);
                    for (LocalVariable v : dirtyVars) {
                        // We have to spill the var that is defined in the closure as well because the load var pass
                        // will attempt to load the var always.  So, if the call doesn't actually call the closure,
                        // we'll be in trouble in that scenario!
                        if (spillAllVars || cl.usesLocalVariable(v) || cl.definesLocalVariable(v)) {
                            addedStores = true;
                            instrs.add(new StoreLocalVarInstr(getLocalVarReplacement(v, scope, varRenameMap), scope, v));
                            newDirtyVars.remove(v);
                        }
                    }

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Examples of org.jruby.ir.IRClosure

            // Process calls specially -- these are the sites of binding loads!
            if (i instanceof CallBase) {
                CallBase call = (CallBase) i;
                Operand o = call.getClosureArg(null);
                if (o != null && o instanceof WrappedIRClosure) {
                    IRClosure cl = ((WrappedIRClosure) o).getClosure();


                    // Variables defined in the closure do not need to be loaded anymore at
                    // program points before the call, because they will be loaded after the
                    // call completes to fetch the latest value.
                    //
                    // Allocate a new hash-set and modify it to get around ConcurrentModificationException on reqdLoads
                    Set<LocalVariable> newReqdLoads = new HashSet<LocalVariable>(reqdLoads);
                    for (LocalVariable v: reqdLoads) {
                        if (cl.definesLocalVariable(v)) newReqdLoads.remove(v);
                    }
                    reqdLoads = newReqdLoads;
                }


                // In this case, we are going to blindly load everything -- so, at the call site, pending loads dont carry over!

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Examples of org.jruby.ir.IRClosure


            if (i instanceof CallBase) {
                CallBase call = (CallBase) i;
                Operand o = call.getClosureArg(null);
                if (o != null && o instanceof WrappedIRClosure) {
                    IRClosure cl = ((WrappedIRClosure) o).getClosure();


                    // Only those variables that are defined in the closure, and are in the required loads set 
                    // will need to be loaded from the binding after the call!  Rest can wait ..
                    //
                    // Allocate a new hash-set and modify it to get around ConcurrentModificationException on reqdLoads
                    Set<LocalVariable> newReqdLoads = new HashSet<LocalVariable>(reqdLoads);
                    it.next();
                    for (LocalVariable v : reqdLoads) {
                        if (cl.definesLocalVariable(v)) {
                            it.add(new LoadLocalVarInstr(scope, getLocalVarReplacement(v, scope, varRenameMap), v));
                            it.previous();
                            newReqdLoads.remove(v);
                        }
                    }

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