Internalize strings in-place

src/compiler/instruction-selector.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/instruction-selector.h"
 
 #include <limits>
 
 #include "src/base/adapters.h"
 #include "src/compiler/compiler-source-position-table.h"
@@ skipping 889 matching lines @@
 }
 
 
 void InstructionSelector::VisitControl(BasicBlock* block) {
 #ifdef DEBUG
   // SSA deconstruction requires targets of branches not to have phis.
   // Edge split form guarantees this property, but is more strict.
   if (block->SuccessorCount() > 1) {
     for (BasicBlock* const successor : block->successors()) {
       for (Node* const node : *successor) {
+        // If this CHECK fails, you might have specified merged variables
+        // for a label with only one predecessor.
         CHECK(!IrOpcode::IsPhiOpcode(node->opcode()));
       }
     }
   }
 #endif
 
   Node* input = block->control_input();
   switch (block->control()) {
     case BasicBlock::kGoto:
       return VisitGoto(block->SuccessorAt(0));
@@ skipping 1341 matching lines @@
   return new (instruction_zone()) FrameStateDescriptor(
       instruction_zone(), state_info.type(), state_info.bailout_id(),
       state_info.state_combine(), parameters, locals, stack,
       state_info.shared_info(), outer_state);
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8