commit 21b5e95db1c650dfc2ba8e11d010bb01293f85c5
author vegorov@chromium.org <vegorov@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Tue Nov 23 10:24:40 2010 +0000
committer vegorov@chromium.org <vegorov@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Tue Nov 23 10:24:40 2010 +0000
tree 945a80dd23bef028c9f7ed20212dd9ead439fcbe
parent 4a6c3279070e8f133607a74c08d8c08ac394ab98

Version 2.5.8

Removed dependency on Gay's dtoa.

Improved heap profiler precision and speed.

Reduced overhead of callback invocations on ARM.


git-svn-id: http://v8.googlecode.com/svn/trunk@5874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/codegen-arm.cc

diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index dd0520f..3e6743a 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -3103,10 +3103,13 @@
 
 
 void CodeGenerator::InstantiateFunction(
-    Handle<SharedFunctionInfo> function_info) {
+    Handle<SharedFunctionInfo> function_info,
+    bool pretenure) {
   // Use the fast case closure allocation code that allocates in new
   // space for nested functions that don't need literals cloning.
-  if (scope()->is_function_scope() && function_info->num_literals() == 0) {
+  if (scope()->is_function_scope() &&
+      function_info->num_literals() == 0 &&
+      !pretenure) {
     FastNewClosureStub stub;
     frame_->EmitPush(Operand(function_info));
     frame_->SpillAll();
@@ -3116,7 +3119,10 @@
     // Create a new closure.
     frame_->EmitPush(cp);
     frame_->EmitPush(Operand(function_info));
-    frame_->CallRuntime(Runtime::kNewClosure, 2);
+    frame_->EmitPush(Operand(pretenure
+                             ? Factory::true_value()
+                             : Factory::false_value()));
+    frame_->CallRuntime(Runtime::kNewClosure, 3);
     frame_->EmitPush(r0);
   }
 }
@@ -3136,7 +3142,7 @@
     ASSERT(frame_->height() == original_height);
     return;
   }
-  InstantiateFunction(function_info);
+  InstantiateFunction(function_info, node->pretenure());
   ASSERT_EQ(original_height + 1, frame_->height());
 }
 
@@ -3147,7 +3153,7 @@
   int original_height = frame_->height();
 #endif
   Comment cmnt(masm_, "[ SharedFunctionInfoLiteral");
-  InstantiateFunction(node->shared_function_info());
+  InstantiateFunction(node->shared_function_info(), false);
   ASSERT_EQ(original_height + 1, frame_->height());
 }
 
@@ -5816,6 +5822,15 @@
 }
 
 
+void CodeGenerator::GenerateFastAsciiArrayJoin(ZoneList<Expression*>* args) {
+  ASSERT(args->length() == 2);
+  Load(args->at(0));
+  Register value = frame_->PopToRegister();
+  __ LoadRoot(value, Heap::kUndefinedValueRootIndex);
+  frame_->EmitPush(value);
+}
+
+
 void CodeGenerator::VisitCallRuntime(CallRuntime* node) {
 #ifdef DEBUG
   int original_height = frame_->height();