Use a filter instead of a visitor to deoptimize selected functions in a context.

src/mips/deoptimizer-mips.cc

Index: src/mips/deoptimizer-mips.cc
diff --git a/src/mips/deoptimizer-mips.cc b/src/mips/deoptimizer-mips.cc
index e8ed9ccf7bf0c0c7e040c1be603973f7cb513bb1..a134f5962f4ea47272c6ccf4e6e5608475d6281f 100644
--- a/src/mips/deoptimizer-mips.cc
+++ b/src/mips/deoptimizer-mips.cc
@@ -42,11 +42,14 @@ int Deoptimizer::patch_size() {
 }
 
 
-void Deoptimizer::DeoptimizeFunction(JSFunction* function) {
-  HandleScope scope;
+void Deoptimizer::DeoptimizeFunctionWithPreparedFunctionList(
+    JSFunction* function) {
+  Isolate* isolate = function->GetIsolate();
+  HandleScope scope(isolate);
   AssertNoAllocation no_allocation;
 
-  if (!function->IsOptimized()) return;
+  ASSERT(function->IsOptimized());
+  ASSERT(function->FunctionsInFunctionListShareSameCode());
 
   // The optimized code is going to be patched, so we cannot use it
   // any more.  Play safe and reset the whole cache.
@@ -87,8 +90,6 @@ void Deoptimizer::DeoptimizeFunction(JSFunction* function) {
 #endif
   }
 
-  Isolate* isolate = code->GetIsolate();
-
   // Add the deoptimizing code to the list.
   DeoptimizingCodeListNode* node = new DeoptimizingCodeListNode(code);
   DeoptimizerData* data = isolate->deoptimizer_data();