Use iostream formatting when printing code.

src/compiler/scheduler.cc

 // Copyright 2013 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/scheduler.h"
 
+#include <iomanip>
+
 #include "src/bit-vector.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/control-equivalence.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/node.h"
 #include "src/compiler/node-marker.h"
 #include "src/compiler/node-properties.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
@@ skipping 926 matching lines @@
       os << " (";
       for (size_t i = 0; i < loops_.size(); i++) {
         if (i > 0) os << " ";
         os << "B" << loops_[i].header->id();
       }
       os << ")";
     }
     os << ":\n";
 
     for (BasicBlock* block = order_; block != NULL; block = block->rpo_next()) {
-      BasicBlock::Id bid = block->id();
-      // TODO(jarin,svenpanne): Add formatting here once we have support for
-      // that in streams (we want an equivalent of PrintF("%5d:", x) here).
-      os << "  " << block->rpo_number() << ":";
+      os << std::setw(5) << block->rpo_number() << ":";
       for (size_t i = 0; i < loops_.size(); i++) {
         bool range = loops_[i].header->LoopContains(block);
         bool membership = loops_[i].header != block && range;
         os << (membership ? " |" : "  ");
         os << (range ? "x" : " ");
       }
-      os << "  B" << bid << ": ";
+      os << "  B" << block->id() << ": ";
       if (block->loop_end() != NULL) {
         os << " range: [" << block->rpo_number() << ", "
            << block->loop_end()->rpo_number() << ")";
       }
       if (block->loop_header() != NULL) {
         os << " header: B" << block->loop_header()->id();
       }
       if (block->loop_depth() > 0) {
         os << " depth: " << block->loop_depth();
       }
@@ skipping 686 matching lines @@
   for (Node* const node : *nodes) {
     schedule_->SetBlockForNode(to, node);
     scheduled_nodes_[to->id().ToSize()].push_back(node);
   }
   nodes->clear();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8