Revert "Remove deprecated ShouldSelfOptimize machinery."

src/arm/full-codegen-arm.cc

 // Copyright 2012 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/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 406 matching lines @@
     __ b(&return_label_);
   } else {
     __ bind(&return_label_);
     if (FLAG_trace) {
       // Push the return value on the stack as the parameter.
       // Runtime::TraceExit returns its parameter in r0.
       __ push(r0);
       __ CallRuntime(Runtime::kTraceExit, 1);
     }
     // Pretend that the exit is a backwards jump to the entry.
-    int distance = masm_->pc_offset();
-    int weight =
-        Min(kMaxBackEdgeWeight, Max(1, distance / kCodeSizeMultiplier));
+    int weight = 1;
+    if (info_->ShouldSelfOptimize()) {
+      weight = FLAG_interrupt_budget / FLAG_self_opt_count;
+    } else {
+      int distance = masm_->pc_offset();
+      weight = Min(kMaxBackEdgeWeight,
+                   Max(1, distance / kCodeSizeMultiplier));
+    }
     EmitProfilingCounterDecrement(weight);
     Label ok;
     __ b(pl, &ok);
     __ push(r0);
     __ Call(isolate()->builtins()->InterruptCheck(),
             RelocInfo::CODE_TARGET);
     __ pop(r0);
     EmitProfilingCounterReset();
     __ bind(&ok);
 
@@ skipping 4853 matching lines @@
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM