diff options
Diffstat (limited to 'src/share/vm/opto/node.cpp')
| -rw-r--r-- | src/share/vm/opto/node.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/share/vm/opto/node.cpp b/src/share/vm/opto/node.cpp index 880576016..cc35098e8 100644 --- a/src/share/vm/opto/node.cpp +++ b/src/share/vm/opto/node.cpp @@ -296,6 +296,14 @@ inline int Node::Init(int req, Compile* C) { assert(Compile::current() == C, "must use operator new(Compile*)"); int idx = C->next_unique(); + // Allocate memory for the necessary number of edges. + if (req > 0) { + // Allocate space for _in array to have double alignment. + _in = (Node **) ((char *) (C->node_arena()->Amalloc_D(req * sizeof(void*)))); +#ifdef ASSERT + _in[req-1] = this; // magic cookie for assertion check +#endif + } // If there are default notes floating around, capture them: Node_Notes* nn = C->default_node_notes(); if (nn != NULL) init_node_notes(C, idx, nn); @@ -1004,15 +1012,15 @@ const Type *Node::Value( PhaseTransform * ) const { // set_req(2, phase->intcon(7)); // return this; // Example: reshape "X*4" into "X<<2" -// return new (C,3) LShiftINode(in(1), phase->intcon(2)); +// return new (C) LShiftINode(in(1), phase->intcon(2)); // // You must call 'phase->transform(X)' on any new Nodes X you make, except // for the returned root node. Example: reshape "X*31" with "(X<<5)-X". -// Node *shift=phase->transform(new(C,3)LShiftINode(in(1),phase->intcon(5))); -// return new (C,3) AddINode(shift, in(1)); +// Node *shift=phase->transform(new(C)LShiftINode(in(1),phase->intcon(5))); +// return new (C) AddINode(shift, in(1)); // // When making a Node for a constant use 'phase->makecon' or 'phase->intcon'. -// These forms are faster than 'phase->transform(new (C,1) ConNode())' and Do +// These forms are faster than 'phase->transform(new (C) ConNode())' and Do // The Right Thing with def-use info. // // You cannot bury the 'this' Node inside of a graph reshape. If the reshaped |