src/share/vm/opto/node.cpp

changeset 4115
e626685e9f6c
parent 4037
da91efe96a93
child 4315
2aff40cb4703
     1.1 --- a/src/share/vm/opto/node.cpp	Tue Sep 25 15:48:17 2012 -0700
     1.2 +++ b/src/share/vm/opto/node.cpp	Thu Sep 27 09:38:42 2012 -0700
     1.3 @@ -296,6 +296,14 @@
     1.4    assert(Compile::current() == C, "must use operator new(Compile*)");
     1.5    int idx = C->next_unique();
     1.6  
     1.7 +  // Allocate memory for the necessary number of edges.
     1.8 +  if (req > 0) {
     1.9 +    // Allocate space for _in array to have double alignment.
    1.10 +    _in = (Node **) ((char *) (C->node_arena()->Amalloc_D(req * sizeof(void*))));
    1.11 +#ifdef ASSERT
    1.12 +    _in[req-1] = this; // magic cookie for assertion check
    1.13 +#endif
    1.14 +  }
    1.15    // If there are default notes floating around, capture them:
    1.16    Node_Notes* nn = C->default_node_notes();
    1.17    if (nn != NULL)  init_node_notes(C, idx, nn);
    1.18 @@ -1004,15 +1012,15 @@
    1.19  //    set_req(2, phase->intcon(7));
    1.20  //    return this;
    1.21  // Example: reshape "X*4" into "X<<2"
    1.22 -//    return new (C,3) LShiftINode(in(1), phase->intcon(2));
    1.23 +//    return new (C) LShiftINode(in(1), phase->intcon(2));
    1.24  //
    1.25  // You must call 'phase->transform(X)' on any new Nodes X you make, except
    1.26  // for the returned root node.  Example: reshape "X*31" with "(X<<5)-X".
    1.27 -//    Node *shift=phase->transform(new(C,3)LShiftINode(in(1),phase->intcon(5)));
    1.28 -//    return new (C,3) AddINode(shift, in(1));
    1.29 +//    Node *shift=phase->transform(new(C)LShiftINode(in(1),phase->intcon(5)));
    1.30 +//    return new (C) AddINode(shift, in(1));
    1.31  //
    1.32  // When making a Node for a constant use 'phase->makecon' or 'phase->intcon'.
    1.33 -// These forms are faster than 'phase->transform(new (C,1) ConNode())' and Do
    1.34 +// These forms are faster than 'phase->transform(new (C) ConNode())' and Do
    1.35  // The Right Thing with def-use info.
    1.36  //
    1.37  // You cannot bury the 'this' Node inside of a graph reshape.  If the reshaped

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