Add fuzzing support for inline runtime functions

src/codegen.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 333 matching lines @@
       }
     }
   }
 
   // Invoke the platform-dependent code generator to do the actual
   // declaration the global variables and functions.
   DeclareGlobals(array);
 }
 
 
+// List of special runtime calls which are generated inline. For some of these
+// functions the code will be generated inline, and for others a call to a code
+// stub will be inlined.
 
-// Special cases: These 'runtime calls' manipulate the current
-// frame and are only used 1 or two places, so we generate them
-// inline instead of generating calls to them.  They are used
-// for implementing Function.prototype.call() and
-// Function.prototype.apply().
+#define INLINE_RUNTIME_ENTRY(Name, argc, ressize)                             \
+    {&CodeGenerator::Generate##Name,  "_" #Name, argc},                       \
+
 CodeGenerator::InlineRuntimeLUT CodeGenerator::kInlineRuntimeLUT[] = {
-  {&CodeGenerator::GenerateIsSmi, "_IsSmi"},
-  {&CodeGenerator::GenerateIsNonNegativeSmi, "_IsNonNegativeSmi"},
-  {&CodeGenerator::GenerateIsArray, "_IsArray"},
-  {&CodeGenerator::GenerateIsRegExp, "_IsRegExp"},
-  {&CodeGenerator::GenerateIsConstructCall, "_IsConstructCall"},
-  {&CodeGenerator::GenerateArgumentsLength, "_ArgumentsLength"},
-  {&CodeGenerator::GenerateArgumentsAccess, "_Arguments"},
-  {&CodeGenerator::GenerateClassOf, "_ClassOf"},
-  {&CodeGenerator::GenerateValueOf, "_ValueOf"},
-  {&CodeGenerator::GenerateSetValueOf, "_SetValueOf"},
-  {&CodeGenerator::GenerateFastCharCodeAt, "_FastCharCodeAt"},
-  {&CodeGenerator::GenerateCharFromCode, "_CharFromCode"},
-  {&CodeGenerator::GenerateObjectEquals, "_ObjectEquals"},
-  {&CodeGenerator::GenerateLog, "_Log"},
-  {&CodeGenerator::GenerateRandomPositiveSmi, "_RandomPositiveSmi"},
-  {&CodeGenerator::GenerateIsObject, "_IsObject"},
-  {&CodeGenerator::GenerateIsFunction, "_IsFunction"},
-  {&CodeGenerator::GenerateIsUndetectableObject, "_IsUndetectableObject"},
-  {&CodeGenerator::GenerateStringAdd, "_StringAdd"},
-  {&CodeGenerator::GenerateSubString, "_SubString"},
-  {&CodeGenerator::GenerateStringCompare, "_StringCompare"},
-  {&CodeGenerator::GenerateRegExpExec, "_RegExpExec"},
-  {&CodeGenerator::GenerateNumberToString, "_NumberToString"},
-  {&CodeGenerator::GenerateMathPow, "_Math_pow"},
-  {&CodeGenerator::GenerateMathSin, "_Math_sin"},
-  {&CodeGenerator::GenerateMathCos, "_Math_cos"},
-  {&CodeGenerator::GenerateMathSqrt, "_Math_sqrt"},
+  INLINE_RUNTIME_FUNCTION_LIST(INLINE_RUNTIME_ENTRY)
 };
 
+#undef INLINE_RUNTIME_ENTRY
 
 CodeGenerator::InlineRuntimeLUT* CodeGenerator::FindInlineRuntimeLUT(
     Handle<String> name) {
   const int entries_count =
       sizeof(kInlineRuntimeLUT) / sizeof(InlineRuntimeLUT);
   for (int i = 0; i < entries_count; i++) {
     InlineRuntimeLUT* entry = &kInlineRuntimeLUT[i];
     if (name->IsEqualTo(CStrVector(entry->name))) {
       return entry;
     }
@@ skipping 24 matching lines @@
   if (old_entry != NULL) {
     old_entry->name = entry->name;
     old_entry->method = entry->method;
   }
   entry->name = new_entry.name;
   entry->method = new_entry.method;
   return true;
 }
 
 
+int CodeGenerator::InlineRuntimeCallArgumentsCount(Handle<String> name) {
+  CodeGenerator::InlineRuntimeLUT* f =
+      CodeGenerator::FindInlineRuntimeLUT(name);
+  if (f != NULL) return f->nargs;
+  return -1;
+}
+
+
 // Simple condition analysis.  ALWAYS_TRUE and ALWAYS_FALSE represent a
 // known result for the test expression, with no side effects.
 CodeGenerator::ConditionAnalysis CodeGenerator::AnalyzeCondition(
     Expression* cond) {
   if (cond == NULL) return ALWAYS_TRUE;
 
   Literal* lit = cond->AsLiteral();
   if (lit == NULL) return DONT_KNOW;
 
   if (lit->IsTrue()) {
@@ skipping 86 matching lines @@
   }
 }
 
 
 void ApiGetterEntryStub::SetCustomCache(Code* value) {
   info()->set_load_stub_cache(value);
 }
 
 
 } }  // namespace v8::internal