Harden %FunctionBindArguments wrt optimized code cache.

src/compiler.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"
 
 #include "src/compiler.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 1023 matching lines @@
   live_edit_tracker.RecordFunctionInfo(result, literal, info.zone());
   return result;
 }
 
 
 MUST_USE_RESULT static MaybeHandle<Code> GetCodeFromOptimizedCodeMap(
     Handle<JSFunction> function,
     BailoutId osr_ast_id) {
   if (FLAG_cache_optimized_code) {
     Handle<SharedFunctionInfo> shared(function->shared());
+    // Bound functions are not cached.
+    if (shared->bound()) return MaybeHandle<Code>();
     DisallowHeapAllocation no_gc;
     int index = shared->SearchOptimizedCodeMap(
         function->context()->native_context(), osr_ast_id);
     if (index > 0) {
       if (FLAG_trace_opt) {
         PrintF("[found optimized code for ");
         function->ShortPrint();
         if (!osr_ast_id.IsNone()) {
           PrintF(" at OSR AST id %d", osr_ast_id.ToInt());
         }
         PrintF("]\n");
       }
       FixedArray* literals = shared->GetLiteralsFromOptimizedCodeMap(index);
       if (literals != NULL) function->set_literals(literals);
       return Handle<Code>(shared->GetCodeFromOptimizedCodeMap(index));
     }
   }
   return MaybeHandle<Code>();
 }
 
 
 static void InsertCodeIntoOptimizedCodeMap(CompilationInfo* info) {
   Handle<Code> code = info->code();
   if (code->kind() != Code::OPTIMIZED_FUNCTION) return;  // Nothing to do.
 
   // Cache optimized code.
   if (FLAG_cache_optimized_code) {
     Handle<JSFunction> function = info->closure();
     Handle<SharedFunctionInfo> shared(function->shared());
+    // Do not cache bound functions.
+    if (shared->bound()) return;
     Handle<FixedArray> literals(function->literals());
     Handle<Context> native_context(function->context()->native_context());
     SharedFunctionInfo::AddToOptimizedCodeMap(
         shared, native_context, code, literals, info->osr_ast_id());
   }
 }
 
 
 static bool CompileOptimizedPrologue(CompilationInfo* info) {
   if (!Parser::Parse(info)) return false;
@@ skipping 213 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal