Introduce a reference to the code object of inlined functions in CompilationInfo.

src/crankshaft/hydrogen.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/crankshaft/hydrogen.h"
 
 #include <sstream>
 
 #include "src/allocation-site-scopes.h"
 #include "src/ast-numbering.h"
@@ skipping 8393 matching lines @@
   // All declarations must be inlineable.
   ZoneList<Declaration*>* decls = target_info.scope()->declarations();
   int decl_count = decls->length();
   for (int i = 0; i < decl_count; ++i) {
     if (!decls->at(i)->IsInlineable()) {
       TraceInline(target, caller, "target has non-trivial declaration");
       return false;
     }
   }
 
-  // Generate the deoptimization data for the unoptimized version of
-  // the target function if we don't already have it.
-  if (!Compiler::EnsureDeoptimizationSupport(&target_info)) {
-    TraceInline(target, caller, "could not generate deoptimization info");
-    return false;
-  }
-
   // In strong mode it is an error to call a function with too few arguments.
   // In that case do not inline because then the arity check would be skipped.
   if (is_strong(function->language_mode()) &&
       arguments_count < function->parameter_count()) {
     TraceInline(target, caller,
                 "too few arguments passed to a strong function");
     return false;
   }
 
+  // Generate the deoptimization data for the unoptimized version of
+  // the target function if we don't already have it.
+  if (!Compiler::EnsureDeoptimizationSupport(&target_info)) {
+    TraceInline(target, caller, "could not generate deoptimization info");
+    return false;
+  }
+  // Remember that we inlined this function. This needs to be called right
+  // after the EnsureDeoptimizationSupport call so that the code flusher
+  // does not remove the code with the deoptimization support.
+  top_info()->AddInlinedFunction(target_info.shared_info());
+
   // ----------------------------------------------------------------
   // After this point, we've made a decision to inline this function (so
   // TryInline should always return true).
 
   // Type-check the inlined function.
   DCHECK(target_shared->has_deoptimization_support());
   AstTyper(target_info.isolate(), target_info.zone(), target_info.closure(),
            target_info.scope(), target_info.osr_ast_id(), target_info.literal())
       .Run();
 
@@ skipping 5256 matching lines @@
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 }  // namespace internal
 }  // namespace v8