[turbofan] Make RawMachineAssembler handle the end node.

src/compiler/raw-machine-assembler.cc

Index: src/compiler/raw-machine-assembler.cc
diff --git a/src/compiler/raw-machine-assembler.cc b/src/compiler/raw-machine-assembler.cc
index 43a3aac2b5e91c518dcc48c08864d31e53448350..7ea1428581efcd0cd626253ba9cd8ab0c8c0a1f6 100644
--- a/src/compiler/raw-machine-assembler.cc
+++ b/src/compiler/raw-machine-assembler.cc
@@ -5,6 +5,7 @@
 #include "src/compiler/raw-machine-assembler.h"
 
 #include "src/code-factory.h"
+#include "src/compiler/node-properties.h"
 #include "src/compiler/pipeline.h"
 #include "src/compiler/scheduler.h"
 
@@ -31,6 +32,7 @@ RawMachineAssembler::RawMachineAssembler(Isolate* isolate, Graph* graph,
     parameters_[i] =
         AddNode(common()->Parameter(static_cast<int>(i)), graph->start());
   }
+  graph->SetEnd(UndefinedConstant());

[Michael Starzinger, 2015/12/03 12:28:27]

This is a dirty hack because currently we disallow {End} nodes with zero inputs
and I hijack the undefined constant as some random node with zero inputs.
However I am unsure whether we should relax the check in
CommonOperatorBuilder::End that disallows it. WDYT?

[Benedikt Meurer, 2015/12/03 12:49:15]

As discussed, remove the hack and use End(0)

[Michael Starzinger, 2015/12/03 12:53:32]

Done.

 }
 
 
@@ -212,6 +214,7 @@ Node* RawMachineAssembler::TailCallN(CallDescriptor* desc, Node* function,
   buffer[index++] = graph()->start();
   buffer[index++] = graph()->start();
   Node* tail_call = MakeNode(common()->TailCall(desc), input_count, buffer);
+  NodeProperties::MergeControlToEnd(graph(), common(), tail_call);
   schedule()->AddTailCall(CurrentBlock(), tail_call);
   current_block_ = nullptr;
   return tail_call;
@@ -234,6 +237,7 @@ Node* RawMachineAssembler::TailCallRuntime1(Runtime::FunctionId function,
                    graph()->start()};
   Node* tail_call = MakeNode(common()->TailCall(desc), arraysize(nodes), nodes);
 
+  NodeProperties::MergeControlToEnd(graph(), common(), tail_call);
   schedule()->AddTailCall(CurrentBlock(), tail_call);
   current_block_ = nullptr;
   return tail_call;
@@ -258,6 +262,7 @@ Node* RawMachineAssembler::TailCallRuntime2(Runtime::FunctionId function,
       graph()->start()};
   Node* tail_call = MakeNode(common()->TailCall(desc), arraysize(nodes), nodes);
 
+  NodeProperties::MergeControlToEnd(graph(), common(), tail_call);
   schedule()->AddTailCall(CurrentBlock(), tail_call);
   current_block_ = nullptr;
   return tail_call;