[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index bbf0e6b3c339449c24b2a6cc5071fde64d43c031..10174f3658ea57a446d111c35c13510360770bda 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -36,7 +36,7 @@
 #include "debug.h"
 #include "ic-inl.h"
 #include "jsregexp.h"
-#include "jump-target-light-inl.h"
+#include "jump-target-inl.h"
 #include "parser.h"
 #include "regexp-macro-assembler.h"
 #include "regexp-stack.h"
@@ -79,12 +79,12 @@ void VirtualFrameRuntimeCallHelper::AfterCall(MacroAssembler* masm) const {
 }
 
 
-void ICRuntimeCallHelper::BeforeCall(MacroAssembler* masm) const {
+void StubRuntimeCallHelper::BeforeCall(MacroAssembler* masm) const {
   masm->EnterInternalFrame();
 }
 
 
-void ICRuntimeCallHelper::AfterCall(MacroAssembler* masm) const {
+void StubRuntimeCallHelper::AfterCall(MacroAssembler* masm) const {
   masm->LeaveInternalFrame();
 }
 
@@ -132,8 +132,6 @@ TypeInfoCodeGenState::~TypeInfoCodeGenState() {
 // -------------------------------------------------------------------------
 // CodeGenerator implementation
 
-int CodeGenerator::inlined_write_barrier_size_ = -1;
-
 CodeGenerator::CodeGenerator(MacroAssembler* masm)
     : deferred_(8),
       masm_(masm),
@@ -165,6 +163,9 @@ void CodeGenerator::Generate(CompilationInfo* info) {
 
   int slots = scope()->num_parameters() + scope()->num_stack_slots();
   ScopedVector<TypeInfo> type_info_array(slots);
+  for (int i = 0; i < slots; i++) {
+    type_info_array[i] = TypeInfo::Unknown();
+  }
   type_info_ = &type_info_array;
 
   ASSERT(allocator_ == NULL);
@@ -5422,97 +5423,14 @@ void CodeGenerator::GenerateRegExpExec(ZoneList<Expression*>* args) {
 
 
 void CodeGenerator::GenerateRegExpConstructResult(ZoneList<Expression*>* args) {
-  // No stub. This code only occurs a few times in regexp.js.
-  const int kMaxInlineLength = 100;
   ASSERT_EQ(3, args->length());
+
   Load(args->at(0));  // Size of array, smi.
   Load(args->at(1));  // "index" property value.
   Load(args->at(2));  // "input" property value.
-  {
-    VirtualFrame::SpilledScope spilled_scope(frame_);
-    Label slowcase;
-    Label done;
-    __ ldr(r1, MemOperand(sp, kPointerSize * 2));
-    STATIC_ASSERT(kSmiTag == 0);
-    STATIC_ASSERT(kSmiTagSize == 1);
-    __ tst(r1, Operand(kSmiTagMask));
-    __ b(ne, &slowcase);
-    __ cmp(r1, Operand(Smi::FromInt(kMaxInlineLength)));
-    __ b(hi, &slowcase);
-    // Smi-tagging is equivalent to multiplying by 2.
-    // Allocate RegExpResult followed by FixedArray with size in ebx.
-    // JSArray:   [Map][empty properties][Elements][Length-smi][index][input]
-    // Elements:  [Map][Length][..elements..]
-    // Size of JSArray with two in-object properties and the header of a
-    // FixedArray.
-    int objects_size =
-        (JSRegExpResult::kSize + FixedArray::kHeaderSize) / kPointerSize;
-    __ mov(r5, Operand(r1, LSR, kSmiTagSize + kSmiShiftSize));
-    __ add(r2, r5, Operand(objects_size));
-    __ AllocateInNewSpace(
-        r2,  // In: Size, in words.
-        r0,  // Out: Start of allocation (tagged).
-        r3,  // Scratch register.
-        r4,  // Scratch register.
-        &slowcase,
-        static_cast<AllocationFlags>(TAG_OBJECT | SIZE_IN_WORDS));
-    // r0: Start of allocated area, object-tagged.
-    // r1: Number of elements in array, as smi.
-    // r5: Number of elements, untagged.
-
-    // Set JSArray map to global.regexp_result_map().
-    // Set empty properties FixedArray.
-    // Set elements to point to FixedArray allocated right after the JSArray.
-    // Interleave operations for better latency.
-    __ ldr(r2, ContextOperand(cp, Context::GLOBAL_INDEX));
-    __ add(r3, r0, Operand(JSRegExpResult::kSize));
-    __ mov(r4, Operand(FACTORY->empty_fixed_array()));
-    __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalContextOffset));
-    __ str(r3, FieldMemOperand(r0, JSObject::kElementsOffset));
-    __ ldr(r2, ContextOperand(r2, Context::REGEXP_RESULT_MAP_INDEX));
-    __ str(r4, FieldMemOperand(r0, JSObject::kPropertiesOffset));
-    __ str(r2, FieldMemOperand(r0, HeapObject::kMapOffset));
-
-    // Set input, index and length fields from arguments.
-    __ ldm(ia_w, sp, static_cast<RegList>(r2.bit() | r4.bit()));
-    __ str(r1, FieldMemOperand(r0, JSArray::kLengthOffset));
-    __ add(sp, sp, Operand(kPointerSize));
-    __ str(r4, FieldMemOperand(r0, JSRegExpResult::kIndexOffset));
-    __ str(r2, FieldMemOperand(r0, JSRegExpResult::kInputOffset));
-
-    // Fill out the elements FixedArray.
-    // r0: JSArray, tagged.
-    // r3: FixedArray, tagged.
-    // r5: Number of elements in array, untagged.
-
-    // Set map.
-    __ mov(r2, Operand(FACTORY->fixed_array_map()));
-    __ str(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
-    // Set FixedArray length.
-    __ mov(r6, Operand(r5, LSL, kSmiTagSize));
-    __ str(r6, FieldMemOperand(r3, FixedArray::kLengthOffset));
-    // Fill contents of fixed-array with the-hole.
-    __ mov(r2, Operand(FACTORY->the_hole_value()));
-    __ add(r3, r3, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-    // Fill fixed array elements with hole.
-    // r0: JSArray, tagged.
-    // r2: the hole.
-    // r3: Start of elements in FixedArray.
-    // r5: Number of elements to fill.
-    Label loop;
-    __ tst(r5, Operand(r5));
-    __ bind(&loop);
-    __ b(le, &done);  // Jump if r1 is negative or zero.
-    __ sub(r5, r5, Operand(1), SetCC);
-    __ str(r2, MemOperand(r3, r5, LSL, kPointerSizeLog2));
-    __ jmp(&loop);
-
-    __ bind(&slowcase);
-    __ CallRuntime(Runtime::kRegExpConstructResult, 3);
-
-    __ bind(&done);
-  }
-  frame_->Forget(3);
+  RegExpConstructResultStub stub;
+  frame_->SpillAll();
+  frame_->CallStub(&stub, 3);
   frame_->EmitPush(r0);
 }
 
@@ -7077,11 +6995,11 @@ void CodeGenerator::EmitNamedStore(Handle<String> name, bool is_contextual) {
       // Check that this is the first inlined write barrier or that
       // this inlined write barrier has the same size as all the other
       // inlined write barriers.
-      ASSERT((inlined_write_barrier_size_ == -1) ||
-             (inlined_write_barrier_size_ ==
+      ASSERT((Isolate::Current()->inlined_write_barrier_size() == -1) ||
+             (Isolate::Current()->inlined_write_barrier_size() ==
               masm()->InstructionsGeneratedSince(&record_write_start)));
-      inlined_write_barrier_size_ =
-          masm()->InstructionsGeneratedSince(&record_write_start);
+      Isolate::Current()->set_inlined_write_barrier_size(
+          masm()->InstructionsGeneratedSince(&record_write_start));
 
       // Make sure that the expected number of instructions are generated.
       ASSERT_EQ(GetInlinedNamedStoreInstructionsAfterPatch(),