1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/compiler/node.h" 6 7 #include "src/compiler/generic-node-inl.h" 8 9 namespace v8 { 10 namespace internal { 11 namespace compiler { 12 13 void Node::Kill() { 14 DCHECK_NOT_NULL(op()); 15 RemoveAllInputs(); 16 DCHECK(uses().empty()); 17 } 18 19 20 void Node::CollectProjections(NodeVector* projections) { 21 for (size_t i = 0; i < projections->size(); i++) { 22 (*projections)[i] = NULL; 23 } 24 for (UseIter i = uses().begin(); i != uses().end(); ++i) { 25 if ((*i)->opcode() != IrOpcode::kProjection) continue; 26 size_t index = OpParameter<size_t>(*i); 27 DCHECK_LT(index, projections->size()); 28 DCHECK_EQ(NULL, (*projections)[index]); 29 (*projections)[index] = *i; 30 } 31 } 32 33 34 Node* Node::FindProjection(size_t projection_index) { 35 for (UseIter i = uses().begin(); i != uses().end(); ++i) { 36 if ((*i)->opcode() == IrOpcode::kProjection && 37 OpParameter<size_t>(*i) == projection_index) { 38 return *i; 39 } 40 } 41 return NULL; 42 } 43 44 45 OStream& operator<<(OStream& os, const Operator& op) { return op.PrintTo(os); } 46 47 48 OStream& operator<<(OStream& os, const Node& n) { 49 os << n.id() << ": " << *n.op(); 50 if (n.op()->InputCount() != 0) { 51 os << "("; 52 for (int i = 0; i < n.op()->InputCount(); ++i) { 53 if (i != 0) os << ", "; 54 os << n.InputAt(i)->id(); 55 } 56 os << ")"; 57 } 58 return os; 59 } 60 61 } // namespace compiler 62 } // namespace internal 63 } // namespace v8 64
