[turbofan] remove control field from instruction

src/compiler/arm/instruction-selector-arm.cc

Index: src/compiler/arm/instruction-selector-arm.cc
diff --git a/src/compiler/arm/instruction-selector-arm.cc b/src/compiler/arm/instruction-selector-arm.cc
index ef9e89ed4efa71b7bbaa51aec1c649b8980d198c..d461e98d2b442732b1242e6eb962261cd4b03e4c 100644
--- a/src/compiler/arm/instruction-selector-arm.cc
+++ b/src/compiler/arm/instruction-selector-arm.cc
@@ -238,9 +238,8 @@ void VisitBinop(InstructionSelector* selector, Node* node,
   DCHECK_GE(arraysize(outputs), output_count);
   DCHECK_NE(kMode_None, AddressingModeField::decode(opcode));
 
-  Instruction* instr = selector->Emit(cont->Encode(opcode), output_count,
-                                      outputs, input_count, inputs);
-  if (cont->IsBranch()) instr->MarkAsControl();
+  selector->Emit(cont->Encode(opcode), output_count, outputs, input_count,
+                 inputs);
 }
 
 
@@ -578,9 +577,8 @@ static inline void VisitShift(InstructionSelector* selector, Node* node,
   DCHECK_GE(arraysize(outputs), output_count);
   DCHECK_NE(kMode_None, AddressingModeField::decode(opcode));
 
-  Instruction* instr = selector->Emit(cont->Encode(opcode), output_count,
-                                      outputs, input_count, inputs);
-  if (cont->IsBranch()) instr->MarkAsControl();
+  selector->Emit(cont->Encode(opcode), output_count, outputs, input_count,
+                 inputs);
 }
 
 
@@ -1077,7 +1075,7 @@ void VisitFloat64Compare(InstructionSelector* selector, Node* node,
     selector->Emit(cont->Encode(kArmVcmpF64), nullptr,
                    g.UseRegister(m.left().node()),
                    g.UseRegister(m.right().node()), g.Label(cont->true_block()),
-                   g.Label(cont->false_block()))->MarkAsControl();
+                   g.Label(cont->false_block()));
   } else {
     DCHECK(cont->IsSet());
     selector->Emit(
@@ -1124,9 +1122,8 @@ void VisitWordCompare(InstructionSelector* selector, Node* node,
   DCHECK_GE(arraysize(inputs), input_count);
   DCHECK_GE(arraysize(outputs), output_count);
 
-  Instruction* instr = selector->Emit(cont->Encode(opcode), output_count,
-                                      outputs, input_count, inputs);
-  if (cont->IsBranch()) instr->MarkAsControl();
+  selector->Emit(cont->Encode(opcode), output_count, outputs, input_count,
+                 inputs);
 }
 
 
@@ -1231,8 +1228,7 @@ void VisitWordCompareZero(InstructionSelector* selector, Node* user,
   InstructionOperand* const value_operand = g.UseRegister(value);
   if (cont->IsBranch()) {
     selector->Emit(opcode, nullptr, value_operand, value_operand,
-                   g.Label(cont->true_block()),
-                   g.Label(cont->false_block()))->MarkAsControl();
+                   g.Label(cont->true_block()), g.Label(cont->false_block()));
   } else {
     selector->Emit(opcode, g.DefineAsRegister(cont->result()), value_operand,
                    value_operand);