More aggressively inline optimized code.

BUG=
R=danno@chromium.org, mstarzinger@chromium.org, titzer@chromium.org

Review URL: https://codereview.chromium.org/19504006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compiler.h

@@ -560,8 +560,6 @@ class OptimizingCompiler: public ZoneObject {
 
 class Compiler : public AllStatic {
  public:
-  static const int kMaxInliningLevels = 3;
-
   // Call count before primitive functions trigger their own optimization.
   static const int kCallsUntilPrimitiveOpt = 200;
 

src/debug.cc

@@ -1906,7 +1906,7 @@ static void CollectActiveFunctionsFromThread(
   for (JavaScriptFrameIterator it(isolate, top); !it.done(); it.Advance()) {
     JavaScriptFrame* frame = it.frame();
     if (frame->is_optimized()) {
-      List<JSFunction*> functions(Compiler::kMaxInliningLevels + 1);
+      List<JSFunction*> functions(FLAG_max_inlining_levels + 1);
       frame->GetFunctions(&functions);
       for (int i = 0; i < functions.length(); i++) {
         JSFunction* function = functions[i];

src/flag-definitions.h

@@ -219,11 +219,12 @@ DEFINE_bool(use_canonicalizing, true, "use hydrogen instruction canonicalizing")
 DEFINE_bool(use_inlining, true, "use function inlining")
 DEFINE_bool(use_escape_analysis, false, "use hydrogen escape analysis")
 DEFINE_bool(use_allocation_folding, true, "use allocation folding")
+DEFINE_int(max_inlining_levels, 5, "maximum number of inlining levels")
 DEFINE_int(max_inlined_source_size, 600,
            "maximum source size in bytes considered for a single inlining")
 DEFINE_int(max_inlined_nodes, 196,
            "maximum number of AST nodes considered for a single inlining")
-DEFINE_int(max_inlined_nodes_cumulative, 196,
+DEFINE_int(max_inlined_nodes_cumulative, 400,
            "maximum cumulative number of AST nodes considered for inlining")
 DEFINE_bool(loop_invariant_code_motion, true, "loop invariant code motion")
 DEFINE_bool(fast_math, true, "faster (but maybe less accurate) math functions")

src/hydrogen.cc

@@ -6340,11 +6340,11 @@ bool HOptimizedGraphBuilder::TryInline(CallKind call_kind,
 #endif
 
 
-  // Don't inline deeper than kMaxInliningLevels calls.
+  // Don't inline deeper than the maximum number of inlining levels.
   HEnvironment* env = environment();
   int current_level = 1;
   while (env->outer() != NULL) {
-    if (current_level == Compiler::kMaxInliningLevels) {
+    if (current_level == FLAG_max_inlining_levels) {
       TraceInline(target, caller, "inline depth limit reached");
       return false;
     }

src/isolate.cc

@@ -669,7 +669,7 @@ Handle<JSArray> Isolate::CaptureSimpleStackTrace(Handle<JSObject> error_object,
       JavaScriptFrame* frame = JavaScriptFrame::cast(raw_frame);
       // Set initial size to the maximum inlining level + 1 for the outermost
       // function.
-      List<FrameSummary> frames(Compiler::kMaxInliningLevels + 1);
+      List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
       frame->Summarize(&frames);
       for (int i = frames.length() - 1; i >= 0; i--) {
         if (cursor + 4 > elements->length()) {
@@ -752,7 +752,7 @@ Handle<JSArray> Isolate::CaptureCurrentStackTrace(
     JavaScriptFrame* frame = it.frame();
     // Set initial size to the maximum inlining level + 1 for the outermost
     // function.
-    List<FrameSummary> frames(Compiler::kMaxInliningLevels + 1);
+    List<FrameSummary> frames(FLAG_max_inlining_levels + 1);
     frame->Summarize(&frames);
     for (int i = frames.length() - 1; i >= 0 && frames_seen < limit; i--) {
       // Create a JSObject to hold the information for the StackFrame.