Ensure that all goto instructions have deoptimization target.

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 316 matching lines @@
 }
 
 
 static void EmitEqualityAsInstanceCall(FlowGraphCompiler* compiler,
                                        intptr_t deopt_id,
                                        intptr_t token_pos,
                                        Token::Kind kind,
                                        LocationSummary* locs,
                                        const ICData& original_ic_data) {
   if (!compiler->is_optimizing()) {
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeoptBefore,
+    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    deopt_id,
                                    token_pos);
   }
   const int kNumberOfArguments = 2;
   const Array& kNoArgumentNames = Array::Handle();
   const int kNumArgumentsChecked = 2;
 
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
   Label check_identity;
@@ skipping 488 matching lines @@
                               Array::Handle(),  // No named arguments.
                               deopt,  // Deoptimize target.
                               deopt_id(),
                               token_pos(),
                               locs());
     return;
   }
   const String& function_name =
       String::ZoneHandle(Symbols::New(Token::Str(kind())));
   if (!compiler->is_optimizing()) {
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeoptBefore,
+    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    deopt_id(),
                                    token_pos());
   }
   const intptr_t kNumArguments = 2;
   const intptr_t kNumArgsChecked = 2;  // Type-feedback.
   ICData& relational_ic_data = ICData::ZoneHandle(ic_data()->raw());
   if (compiler->is_optimizing() && FLAG_propagate_ic_data) {
     ASSERT(!ic_data()->IsNull());
     if (ic_data()->NumberOfChecks() == 0) {
       // IC call for reoptimization populates original ICData.
@@ skipping 2216 matching lines @@
 
 LocationSummary* GotoInstr::MakeLocationSummary() const {
   return new LocationSummary(0, 0, LocationSummary::kNoCall);
 }
 
 
 void GotoInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   // Add deoptimization descriptor for deoptimizing instructions
   // that may be inserted before this instruction.
   if (!compiler->is_optimizing()) {
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeoptBefore,
+    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
                                    GetDeoptId(),
                                    0);  // No token position.
   }
 
   if (HasParallelMove()) {
     compiler->parallel_move_resolver()->EmitNativeCode(parallel_move());
   }
 
   // We can fall through if the successor is the next block in the list.
   // Otherwise, we need a jump.
@@ skipping 263 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64