Remove platform-specific dead code for KeyedStores

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22745003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16227 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/stub-cache-arm.cc

@@ -1150,21 +1150,6 @@ static void GenerateCheckPropertyCells(MacroAssembler* masm,
 }
 
 
-// Convert and store int passed in register ival to IEEE 754 single precision
-// floating point value at memory location (dst + 4 * wordoffset)
-// If VFP3 is available use it for conversion.
-static void StoreIntAsFloat(MacroAssembler* masm,
-                            Register dst,
-                            Register wordoffset,
-                            Register ival,
-                            Register scratch1) {
-  __ vmov(s0, ival);
-  __ add(scratch1, dst, Operand(wordoffset, LSL, 2));
-  __ vcvt_f32_s32(s0, s0);
-  __ vstr(s0, scratch1, 0);
-}
-
-
 void StubCompiler::GenerateTailCall(MacroAssembler* masm, Handle<Code> code) {
   __ Jump(code, RelocInfo::CODE_TARGET);
 }
@@ -3190,509 +3175,6 @@ void KeyedLoadStubCompiler::GenerateLoadDictionaryElement(
 }
 
 
-static void GenerateSmiKeyCheck(MacroAssembler* masm,
-                                Register key,
-                                Register scratch0,
-                                DwVfpRegister double_scratch0,
-                                LowDwVfpRegister double_scratch1,
-                                Label* fail) {
-  Label key_ok;
-  // Check for smi or a smi inside a heap number.  We convert the heap
-  // number and check if the conversion is exact and fits into the smi
-  // range.
-  __ JumpIfSmi(key, &key_ok);
-  __ CheckMap(key,
-              scratch0,
-              Heap::kHeapNumberMapRootIndex,
-              fail,
-              DONT_DO_SMI_CHECK);
-  __ sub(ip, key, Operand(kHeapObjectTag));
-  __ vldr(double_scratch0, ip, HeapNumber::kValueOffset);
-  __ TryDoubleToInt32Exact(scratch0, double_scratch0, double_scratch1);
-  __ b(ne, fail);
-  __ TrySmiTag(key, scratch0, fail);
-  __ bind(&key_ok);
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreExternalArray(
-    MacroAssembler* masm,
-    ElementsKind elements_kind) {
-  // ---------- S t a t e --------------
-  //  -- r0     : value
-  //  -- r1     : key
-  //  -- r2     : receiver
-  //  -- lr     : return address
-  // -----------------------------------
-  Label slow, check_heap_number, miss_force_generic;
-
-  // Register usage.
-  Register value = r0;
-  Register key = r1;
-  Register receiver = r2;
-  // r3 mostly holds the elements array or the destination external array.
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, key, r4, d1, d2, &miss_force_generic);
-
-  __ ldr(r3, FieldMemOperand(receiver, JSObject::kElementsOffset));
-
-  // Check that the index is in range
-  __ ldr(ip, FieldMemOperand(r3, ExternalArray::kLengthOffset));
-  __ cmp(key, ip);
-  // Unsigned comparison catches both negative and too-large values.
-  __ b(hs, &miss_force_generic);
-
-  // Handle both smis and HeapNumbers in the fast path. Go to the
-  // runtime for all other kinds of values.
-  // r3: external array.
-  if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) {
-    // Double to pixel conversion is only implemented in the runtime for now.
-    __ UntagAndJumpIfNotSmi(r5, value, &slow);
-  } else {
-    __ UntagAndJumpIfNotSmi(r5, value, &check_heap_number);
-  }
-  __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset));
-
-  // r3: base pointer of external storage.
-  // r5: value (integer).
-  switch (elements_kind) {
-    case EXTERNAL_PIXEL_ELEMENTS:
-      // Clamp the value to [0..255].
-      __ Usat(r5, 8, Operand(r5));
-      __ strb(r5, MemOperand(r3, key, LSR, 1));
-      break;
-    case EXTERNAL_BYTE_ELEMENTS:
-    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-      __ strb(r5, MemOperand(r3, key, LSR, 1));
-      break;
-    case EXTERNAL_SHORT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-      __ strh(r5, MemOperand(r3, key, LSL, 0));
-      break;
-    case EXTERNAL_INT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-      __ str(r5, MemOperand(r3, key, LSL, 1));
-      break;
-    case EXTERNAL_FLOAT_ELEMENTS:
-      // Perform int-to-float conversion and store to memory.
-      __ SmiUntag(r4, key);
-      StoreIntAsFloat(masm, r3, r4, r5, r7);
-      break;
-    case EXTERNAL_DOUBLE_ELEMENTS:
-      __ vmov(s2, r5);
-      __ vcvt_f64_s32(d0, s2);
-      __ add(r3, r3, Operand(key, LSL, 2));
-      // r3: effective address of the double element
-      __ vstr(d0, r3, 0);
-      break;
-    case FAST_ELEMENTS:
-    case FAST_SMI_ELEMENTS:
-    case FAST_DOUBLE_ELEMENTS:
-    case FAST_HOLEY_ELEMENTS:
-    case FAST_HOLEY_SMI_ELEMENTS:
-    case FAST_HOLEY_DOUBLE_ELEMENTS:
-    case DICTIONARY_ELEMENTS:
-    case NON_STRICT_ARGUMENTS_ELEMENTS:
-      UNREACHABLE();
-      break;
-  }
-
-  // Entry registers are intact, r0 holds the value which is the return value.
-  __ Ret();
-
-  if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) {
-    // r3: external array.
-    __ bind(&check_heap_number);
-    __ CompareObjectType(value, r5, r6, HEAP_NUMBER_TYPE);
-    __ b(ne, &slow);
-
-    __ ldr(r3, FieldMemOperand(r3, ExternalArray::kExternalPointerOffset));
-
-    // r3: base pointer of external storage.
-
-    // The WebGL specification leaves the behavior of storing NaN and
-    // +/-Infinity into integer arrays basically undefined. For more
-    // reproducible behavior, convert these to zero.
-
-    if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-      // vldr requires offset to be a multiple of 4 so we can not
-      // include -kHeapObjectTag into it.
-      __ sub(r5, r0, Operand(kHeapObjectTag));
-      __ vldr(d0, r5, HeapNumber::kValueOffset);
-      __ add(r5, r3, Operand(key, LSL, 1));
-      __ vcvt_f32_f64(s0, d0);
-      __ vstr(s0, r5, 0);
-    } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-      __ sub(r5, r0, Operand(kHeapObjectTag));
-      __ vldr(d0, r5, HeapNumber::kValueOffset);
-      __ add(r5, r3, Operand(key, LSL, 2));
-      __ vstr(d0, r5, 0);
-    } else {
-      // Hoisted load.  vldr requires offset to be a multiple of 4 so we can
-      // not include -kHeapObjectTag into it.
-      __ sub(r5, value, Operand(kHeapObjectTag));
-      __ vldr(d0, r5, HeapNumber::kValueOffset);
-      __ ECMAToInt32(r5, d0, r6, r7, r9, d1);
-
-      switch (elements_kind) {
-        case EXTERNAL_BYTE_ELEMENTS:
-        case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-          __ strb(r5, MemOperand(r3, key, LSR, 1));
-          break;
-        case EXTERNAL_SHORT_ELEMENTS:
-        case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-          __ strh(r5, MemOperand(r3, key, LSL, 0));
-          break;
-        case EXTERNAL_INT_ELEMENTS:
-        case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-          __ str(r5, MemOperand(r3, key, LSL, 1));
-          break;
-        case EXTERNAL_PIXEL_ELEMENTS:
-        case EXTERNAL_FLOAT_ELEMENTS:
-        case EXTERNAL_DOUBLE_ELEMENTS:
-        case FAST_ELEMENTS:
-        case FAST_SMI_ELEMENTS:
-        case FAST_DOUBLE_ELEMENTS:
-        case FAST_HOLEY_ELEMENTS:
-        case FAST_HOLEY_SMI_ELEMENTS:
-        case FAST_HOLEY_DOUBLE_ELEMENTS:
-        case DICTIONARY_ELEMENTS:
-        case NON_STRICT_ARGUMENTS_ELEMENTS:
-          UNREACHABLE();
-          break;
-      }
-    }
-
-    // Entry registers are intact, r0 holds the value which is the return
-    // value.
-    __ Ret();
-  }
-
-  // Slow case, key and receiver still in r0 and r1.
-  __ bind(&slow);
-  __ IncrementCounter(
-      masm->isolate()->counters()->keyed_load_external_array_slow(),
-      1, r2, r3);
-
-  // ---------- S t a t e --------------
-  //  -- lr     : return address
-  //  -- r0     : key
-  //  -- r1     : receiver
-  // -----------------------------------
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-
-  // Miss case, call the runtime.
-  __ bind(&miss_force_generic);
-
-  // ---------- S t a t e --------------
-  //  -- lr     : return address
-  //  -- r0     : key
-  //  -- r1     : receiver
-  // -----------------------------------
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    ElementsKind elements_kind,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- r0    : value
-  //  -- r1    : key
-  //  -- r2    : receiver
-  //  -- lr    : return address
-  //  -- r3    : scratch
-  //  -- r4    : scratch (elements)
-  // -----------------------------------
-  Label miss_force_generic, transition_elements_kind, grow, slow;
-  Label finish_store, check_capacity;
-
-  Register value_reg = r0;
-  Register key_reg = r1;
-  Register receiver_reg = r2;
-  Register scratch = r4;
-  Register elements_reg = r3;
-  Register length_reg = r5;
-  Register scratch2 = r6;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, key_reg, r4, d1, d2, &miss_force_generic);
-
-  if (IsFastSmiElementsKind(elements_kind)) {
-    __ JumpIfNotSmi(value_reg, &transition_elements_kind);
-  }
-
-  // Check that the key is within bounds.
-  __ ldr(elements_reg,
-         FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-  if (is_js_array) {
-    __ ldr(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-  } else {
-    __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset));
-  }
-  // Compare smis.
-  __ cmp(key_reg, scratch);
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    __ b(hs, &grow);
-  } else {
-    __ b(hs, &miss_force_generic);
-  }
-
-  // Make sure elements is a fast element array, not 'cow'.
-  __ CheckMap(elements_reg,
-              scratch,
-              Heap::kFixedArrayMapRootIndex,
-              &miss_force_generic,
-              DONT_DO_SMI_CHECK);
-
-  __ bind(&finish_store);
-  if (IsFastSmiElementsKind(elements_kind)) {
-    __ add(scratch,
-           elements_reg,
-           Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-    __ add(scratch, scratch, Operand::PointerOffsetFromSmiKey(key_reg));
-    __ str(value_reg, MemOperand(scratch));
-  } else {
-    ASSERT(IsFastObjectElementsKind(elements_kind));
-    __ add(scratch,
-           elements_reg,
-           Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-    __ add(scratch, scratch, Operand::PointerOffsetFromSmiKey(key_reg));
-    __ str(value_reg, MemOperand(scratch));
-    __ mov(receiver_reg, value_reg);
-    __ RecordWrite(elements_reg,  // Object.
-                   scratch,       // Address.
-                   receiver_reg,  // Value.
-                   kLRHasNotBeenSaved,
-                   kDontSaveFPRegs);
-  }
-  // value_reg (r0) is preserved.
-  // Done.
-  __ Ret();
-
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Grow the array by a single element if possible.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags already set by previous compare.
-    __ b(ne, &miss_force_generic);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ ldr(length_reg,
-           FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ ldr(elements_reg,
-           FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-    __ CompareRoot(elements_reg, Heap::kEmptyFixedArrayRootIndex);
-    __ b(ne, &check_capacity);
-
-    int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, elements_reg, scratch, scratch2, &slow, TAG_OBJECT);
-
-    __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex);
-    __ str(scratch, FieldMemOperand(elements_reg, JSObject::kMapOffset));
-    __ mov(scratch, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements)));
-    __ str(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset));
-    __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex);
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) {
-      __ str(scratch, FieldMemOperand(elements_reg, FixedArray::SizeFor(i)));
-    }
-
-    // Store the element at index zero.
-    __ str(value_reg, FieldMemOperand(elements_reg, FixedArray::SizeFor(0)));
-
-    // Install the new backing store in the JSArray.
-    __ str(elements_reg,
-           FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-    __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg,
-                        scratch, kLRHasNotBeenSaved, kDontSaveFPRegs,
-                        EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ mov(length_reg, Operand(Smi::FromInt(1)));
-    __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ Ret();
-
-    __ bind(&check_capacity);
-    // Check for cow elements, in general they are not handled by this stub
-    __ CheckMap(elements_reg,
-                scratch,
-                Heap::kFixedCOWArrayMapRootIndex,
-                &miss_force_generic,
-                DONT_DO_SMI_CHECK);
-
-    __ ldr(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset));
-    __ cmp(length_reg, scratch);
-    __ b(hs, &slow);
-
-    // Grow the array and finish the store.
-    __ add(length_reg, length_reg, Operand(Smi::FromInt(1)));
-    __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ jmp(&finish_store);
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- r0    : value
-  //  -- r1    : key
-  //  -- r2    : receiver
-  //  -- lr    : return address
-  //  -- r3    : scratch (elements backing store)
-  //  -- r4    : scratch
-  //  -- r5    : scratch
-  // -----------------------------------
-  Label miss_force_generic, transition_elements_kind, grow, slow;
-  Label finish_store, check_capacity;
-
-  Register value_reg = r0;
-  Register key_reg = r1;
-  Register receiver_reg = r2;
-  Register elements_reg = r3;
-  Register scratch1 = r4;
-  Register scratch2 = r5;
-  Register length_reg = r7;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, key_reg, r4, d1, d2, &miss_force_generic);
-
-  __ ldr(elements_reg,
-         FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-
-  // Check that the key is within bounds.
-  if (is_js_array) {
-    __ ldr(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-  } else {
-    __ ldr(scratch1,
-           FieldMemOperand(elements_reg, FixedArray::kLengthOffset));
-  }
-  // Compare smis, unsigned compare catches both negative and out-of-bound
-  // indexes.
-  __ cmp(key_reg, scratch1);
-  if (IsGrowStoreMode(store_mode)) {
-    __ b(hs, &grow);
-  } else {
-    __ b(hs, &miss_force_generic);
-  }
-
-  __ bind(&finish_store);
-  __ StoreNumberToDoubleElements(value_reg, key_reg, elements_reg,
-                                 scratch1, d0, &transition_elements_kind);
-  __ Ret();
-
-  // Handle store cache miss, replacing the ic with the generic stub.
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Grow the array by a single element if possible.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags already set by previous compare.
-    __ b(ne, &miss_force_generic);
-
-    // Transition on values that can't be stored in a FixedDoubleArray.
-    Label value_is_smi;
-    __ JumpIfSmi(value_reg, &value_is_smi);
-    __ ldr(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset));
-    __ CompareRoot(scratch1, Heap::kHeapNumberMapRootIndex);
-    __ b(ne, &transition_elements_kind);
-    __ bind(&value_is_smi);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ ldr(length_reg,
-           FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ ldr(elements_reg,
-           FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-    __ CompareRoot(elements_reg, Heap::kEmptyFixedArrayRootIndex);
-    __ b(ne, &check_capacity);
-
-    int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, elements_reg, scratch1, scratch2, &slow, TAG_OBJECT);
-
-    // Initialize the new FixedDoubleArray.
-    __ LoadRoot(scratch1, Heap::kFixedDoubleArrayMapRootIndex);
-    __ str(scratch1, FieldMemOperand(elements_reg, JSObject::kMapOffset));
-    __ mov(scratch1,
-           Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements)));
-    __ str(scratch1,
-           FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset));
-
-    __ mov(scratch1, elements_reg);
-    __ StoreNumberToDoubleElements(value_reg, key_reg, scratch1,
-                                   scratch2, d0, &transition_elements_kind);
-
-    __ mov(scratch1, Operand(kHoleNanLower32));
-    __ mov(scratch2, Operand(kHoleNanUpper32));
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
-      int offset = FixedDoubleArray::OffsetOfElementAt(i);
-      __ str(scratch1, FieldMemOperand(elements_reg, offset));
-      __ str(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize));
-    }
-
-    // Install the new backing store in the JSArray.
-    __ str(elements_reg,
-           FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-    __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg,
-                        scratch1, kLRHasNotBeenSaved, kDontSaveFPRegs,
-                        EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ mov(length_reg, Operand(Smi::FromInt(1)));
-    __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ ldr(elements_reg,
-           FieldMemOperand(receiver_reg, JSObject::kElementsOffset));
-    __ Ret();
-
-    __ bind(&check_capacity);
-    // Make sure that the backing store can hold additional elements.
-    __ ldr(scratch1,
-           FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset));
-    __ cmp(length_reg, scratch1);
-    __ b(hs, &slow);
-
-    // Grow the array and finish the store.
-    __ add(length_reg, length_reg, Operand(Smi::FromInt(1)));
-    __ str(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset));
-    __ jmp(&finish_store);
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
 #undef __
 
 } }  // namespace v8::internal

src/code-stubs.cc

@@ -596,19 +596,9 @@ void KeyedStoreElementStub::Generate(MacroAssembler* masm) {
     case FAST_ELEMENTS:
     case FAST_HOLEY_ELEMENTS:
     case FAST_SMI_ELEMENTS:
-    case FAST_HOLEY_SMI_ELEMENTS: {
-      KeyedStoreStubCompiler::GenerateStoreFastElement(masm,
-                                                       is_js_array_,
-                                                       elements_kind_,
-                                                       store_mode_);
-    }
-      break;
+    case FAST_HOLEY_SMI_ELEMENTS:
     case FAST_DOUBLE_ELEMENTS:
     case FAST_HOLEY_DOUBLE_ELEMENTS:
-      KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm,
-                                                             is_js_array_,
-                                                             store_mode_);
-      break;
     case EXTERNAL_BYTE_ELEMENTS:
     case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
     case EXTERNAL_SHORT_ELEMENTS:
@@ -618,7 +608,7 @@ void KeyedStoreElementStub::Generate(MacroAssembler* masm) {
     case EXTERNAL_FLOAT_ELEMENTS:
     case EXTERNAL_DOUBLE_ELEMENTS:
     case EXTERNAL_PIXEL_ELEMENTS:
-      KeyedStoreStubCompiler::GenerateStoreExternalArray(masm, elements_kind_);
+      UNREACHABLE();
       break;
     case DICTIONARY_ELEMENTS:
       KeyedStoreStubCompiler::GenerateStoreDictionaryElement(masm);

src/flag-definitions.h

@@ -194,8 +194,6 @@ DEFINE_implication(harmony_observation, harmony_collections)
 // Flags for experimental implementation features.
 DEFINE_bool(packed_arrays, true, "optimizes arrays that have no holes")
 DEFINE_bool(smi_only_arrays, true, "tracks arrays with only smi values")
-DEFINE_bool(compiled_keyed_stores, true, "use optimizing compiler to "
-            "generate keyed store stubs")
 DEFINE_bool(clever_optimizations,
             true,
             "Optimize object size, Array shift, DOM strings and string +")

src/ia32/stub-cache-ia32.cc

@@ -3256,520 +3256,6 @@ void KeyedLoadStubCompiler::GenerateLoadDictionaryElement(
 }
 
 
-static void GenerateSmiKeyCheck(MacroAssembler* masm,
-                                Register key,
-                                Register scratch,
-                                XMMRegister xmm_scratch0,
-                                XMMRegister xmm_scratch1,
-                                Label* fail) {
-  // Check that key is a smi and if SSE2 is available a heap number
-  // containing a smi and branch if the check fails.
-  if (CpuFeatures::IsSupported(SSE2)) {
-    CpuFeatureScope use_sse2(masm, SSE2);
-    Label key_ok;
-    __ JumpIfSmi(key, &key_ok);
-    __ cmp(FieldOperand(key, HeapObject::kMapOffset),
-           Immediate(Handle<Map>(masm->isolate()->heap()->heap_number_map())));
-    __ j(not_equal, fail);
-    __ movdbl(xmm_scratch0, FieldOperand(key, HeapNumber::kValueOffset));
-    __ cvttsd2si(scratch, Operand(xmm_scratch0));
-    __ cvtsi2sd(xmm_scratch1, scratch);
-    __ ucomisd(xmm_scratch1, xmm_scratch0);
-    __ j(not_equal, fail);
-    __ j(parity_even, fail);  // NaN.
-    // Check if the key fits in the smi range.
-    __ cmp(scratch, 0xc0000000);
-    __ j(sign, fail);
-    __ SmiTag(scratch);
-    __ mov(key, scratch);
-    __ bind(&key_ok);
-  } else {
-    __ JumpIfNotSmi(key, fail);
-  }
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreExternalArray(
-    MacroAssembler* masm,
-    ElementsKind elements_kind) {
-  // ----------- S t a t e -------------
-  //  -- eax    : value
-  //  -- ecx    : key
-  //  -- edx    : receiver
-  //  -- esp[0] : return address
-  // -----------------------------------
-  Label miss_force_generic, slow, check_heap_number;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, ecx, ebx, xmm0, xmm1, &miss_force_generic);
-
-  // Check that the index is in range.
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-  __ cmp(ecx, FieldOperand(edi, ExternalArray::kLengthOffset));
-  // Unsigned comparison catches both negative and too-large values.
-  __ j(above_equal, &slow);
-
-  // Handle both smis and HeapNumbers in the fast path. Go to the
-  // runtime for all other kinds of values.
-  // eax: value
-  // edx: receiver
-  // ecx: key
-  // edi: elements array
-  if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) {
-    __ JumpIfNotSmi(eax, &slow);
-  } else {
-    __ JumpIfNotSmi(eax, &check_heap_number);
-  }
-
-  // smi case
-  __ mov(ebx, eax);  // Preserve the value in eax as the return value.
-  __ SmiUntag(ebx);
-  __ mov(edi, FieldOperand(edi, ExternalArray::kExternalPointerOffset));
-  // edi: base pointer of external storage
-  switch (elements_kind) {
-    case EXTERNAL_PIXEL_ELEMENTS:
-      __ ClampUint8(ebx);
-      __ SmiUntag(ecx);
-      __ mov_b(Operand(edi, ecx, times_1, 0), ebx);
-      break;
-    case EXTERNAL_BYTE_ELEMENTS:
-    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-      __ SmiUntag(ecx);
-      __ mov_b(Operand(edi, ecx, times_1, 0), ebx);
-      break;
-    case EXTERNAL_SHORT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-      __ mov_w(Operand(edi, ecx, times_1, 0), ebx);
-      break;
-    case EXTERNAL_INT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-      __ mov(Operand(edi, ecx, times_2, 0), ebx);
-      break;
-    case EXTERNAL_FLOAT_ELEMENTS:
-    case EXTERNAL_DOUBLE_ELEMENTS:
-      // Need to perform int-to-float conversion.
-      __ push(ebx);
-      __ fild_s(Operand(esp, 0));
-      __ pop(ebx);
-      if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-        __ fstp_s(Operand(edi, ecx, times_2, 0));
-      } else {  // elements_kind == EXTERNAL_DOUBLE_ELEMENTS.
-        __ fstp_d(Operand(edi, ecx, times_4, 0));
-      }
-      break;
-    default:
-      UNREACHABLE();
-      break;
-  }
-  __ ret(0);  // Return the original value.
-
-  // TODO(danno): handle heap number -> pixel array conversion
-  if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) {
-    __ bind(&check_heap_number);
-    // eax: value
-    // edx: receiver
-    // ecx: key
-    // edi: elements array
-    __ cmp(FieldOperand(eax, HeapObject::kMapOffset),
-           Immediate(masm->isolate()->factory()->heap_number_map()));
-    __ j(not_equal, &slow);
-
-    // The WebGL specification leaves the behavior of storing NaN and
-    // +/-Infinity into integer arrays basically undefined. For more
-    // reproducible behavior, convert these to zero.
-    __ mov(edi, FieldOperand(edi, ExternalArray::kExternalPointerOffset));
-    // edi: base pointer of external storage
-    if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-      __ fld_d(FieldOperand(eax, HeapNumber::kValueOffset));
-      __ fstp_s(Operand(edi, ecx, times_2, 0));
-      __ ret(0);
-    } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-      __ fld_d(FieldOperand(eax, HeapNumber::kValueOffset));
-      __ fstp_d(Operand(edi, ecx, times_4, 0));
-      __ ret(0);
-    } else {
-      // Perform float-to-int conversion with truncation (round-to-zero)
-      // behavior.
-
-      // For the moment we make the slow call to the runtime on
-      // processors that don't support SSE2. The code in IntegerConvert
-      // (code-stubs-ia32.cc) is roughly what is needed here though the
-      // conversion failure case does not need to be handled.
-      if (CpuFeatures::IsSupported(SSE2)) {
-        if ((elements_kind == EXTERNAL_INT_ELEMENTS ||
-             elements_kind == EXTERNAL_UNSIGNED_INT_ELEMENTS) &&
-            CpuFeatures::IsSupported(SSE3)) {
-          CpuFeatureScope scope(masm, SSE3);
-          // fisttp stores values as signed integers. To represent the
-          // entire range of int and unsigned int arrays, store as a
-          // 64-bit int and discard the high 32 bits.
-          __ fld_d(FieldOperand(eax, HeapNumber::kValueOffset));
-          __ sub(esp, Immediate(2 * kPointerSize));
-          __ fisttp_d(Operand(esp, 0));
-
-          // If conversion failed (NaN, infinity, or a number outside
-          // signed int64 range), the result is 0x8000000000000000, and
-          // we must handle this case in the runtime.
-          Label ok;
-          __ cmp(Operand(esp, kPointerSize), Immediate(0x80000000u));
-          __ j(not_equal, &ok);
-          __ cmp(Operand(esp, 0), Immediate(0));
-          __ j(not_equal, &ok);
-          __ add(esp, Immediate(2 * kPointerSize));  // Restore the stack.
-          __ jmp(&slow);
-
-          __ bind(&ok);
-          __ pop(ebx);
-          __ add(esp, Immediate(kPointerSize));
-          __ mov(Operand(edi, ecx, times_2, 0), ebx);
-        } else {
-          ASSERT(CpuFeatures::IsSupported(SSE2));
-          CpuFeatureScope scope(masm, SSE2);
-          __ cvttsd2si(ebx, FieldOperand(eax, HeapNumber::kValueOffset));
-          __ cmp(ebx, 0x80000000u);
-          __ j(equal, &slow);
-          // ebx: untagged integer value
-          switch (elements_kind) {
-            case EXTERNAL_PIXEL_ELEMENTS:
-              __ ClampUint8(ebx);
-              // Fall through.
-            case EXTERNAL_BYTE_ELEMENTS:
-            case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-              __ SmiUntag(ecx);
-              __ mov_b(Operand(edi, ecx, times_1, 0), ebx);
-              break;
-            case EXTERNAL_SHORT_ELEMENTS:
-            case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-              __ mov_w(Operand(edi, ecx, times_1, 0), ebx);
-              break;
-            case EXTERNAL_INT_ELEMENTS:
-            case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-              __ mov(Operand(edi, ecx, times_2, 0), ebx);
-              break;
-            default:
-              UNREACHABLE();
-              break;
-          }
-        }
-        __ ret(0);  // Return original value.
-      }
-    }
-  }
-
-  // Slow case: call runtime.
-  __ bind(&slow);
-  Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->keyed_store_external_array_slow(), 1);
-
-  // ----------- S t a t e -------------
-  //  -- eax    : value
-  //  -- ecx    : key
-  //  -- edx    : receiver
-  //  -- esp[0] : return address
-  // -----------------------------------
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-
-  // ----------- S t a t e -------------
-  //  -- eax    : value
-  //  -- ecx    : key
-  //  -- edx    : receiver
-  //  -- esp[0] : return address
-  // -----------------------------------
-
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    ElementsKind elements_kind,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- eax    : value
-  //  -- ecx    : key
-  //  -- edx    : receiver
-  //  -- esp[0] : return address
-  // -----------------------------------
-  Label miss_force_generic, grow, slow, transition_elements_kind;
-  Label check_capacity, prepare_slow, finish_store, commit_backing_store;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, ecx, ebx, xmm0, xmm1, &miss_force_generic);
-
-  if (IsFastSmiElementsKind(elements_kind)) {
-    __ JumpIfNotSmi(eax, &transition_elements_kind);
-  }
-
-  // Get the elements array and make sure it is a fast element array, not 'cow'.
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-  if (is_js_array) {
-    // Check that the key is within bounds.
-    __ cmp(ecx, FieldOperand(edx, JSArray::kLengthOffset));  // smis.
-    if (IsGrowStoreMode(store_mode)) {
-      __ j(above_equal, &grow);
-    } else {
-      __ j(above_equal, &miss_force_generic);
-    }
-  } else {
-    // Check that the key is within bounds.
-    __ cmp(ecx, FieldOperand(edi, FixedArray::kLengthOffset));  // smis.
-    __ j(above_equal, &miss_force_generic);
-  }
-
-  __ cmp(FieldOperand(edi, HeapObject::kMapOffset),
-         Immediate(masm->isolate()->factory()->fixed_array_map()));
-  __ j(not_equal, &miss_force_generic);
-
-  __ bind(&finish_store);
-  if (IsFastSmiElementsKind(elements_kind)) {
-    // ecx is a smi, use times_half_pointer_size instead of
-    // times_pointer_size
-    __ mov(FieldOperand(edi,
-                        ecx,
-                        times_half_pointer_size,
-                        FixedArray::kHeaderSize), eax);
-  } else {
-    ASSERT(IsFastObjectElementsKind(elements_kind));
-    // Do the store and update the write barrier.
-    // ecx is a smi, use times_half_pointer_size instead of
-    // times_pointer_size
-    __ lea(ecx, FieldOperand(edi,
-                             ecx,
-                             times_half_pointer_size,
-                             FixedArray::kHeaderSize));
-    __ mov(Operand(ecx, 0), eax);
-    // Make sure to preserve the value in register eax.
-    __ mov(ebx, eax);
-    __ RecordWrite(edi, ecx, ebx, kDontSaveFPRegs);
-  }
-
-  // Done.
-  __ ret(0);
-
-  // Handle store cache miss, replacing the ic with the generic stub.
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  // Handle transition to other elements kinds without using the generic stub.
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Handle transition requiring the array to grow.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags are already set by previous
-    // compare.
-    __ j(not_equal, &miss_force_generic);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-    __ cmp(edi, Immediate(masm->isolate()->factory()->empty_fixed_array()));
-    __ j(not_equal, &check_capacity);
-
-    int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, edi, ebx, ecx, &prepare_slow, TAG_OBJECT);
-    // Restore the key, which is known to be the array length.
-
-    // eax: value
-    // ecx: key
-    // edx: receiver
-    // edi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ mov(FieldOperand(edi, JSObject::kMapOffset),
-           Immediate(masm->isolate()->factory()->fixed_array_map()));
-    __ mov(FieldOperand(edi, FixedArray::kLengthOffset),
-           Immediate(Smi::FromInt(JSArray::kPreallocatedArrayElements)));
-    __ mov(ebx, Immediate(masm->isolate()->factory()->the_hole_value()));
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) {
-      __ mov(FieldOperand(edi, FixedArray::SizeFor(i)), ebx);
-    }
-
-    // Store the element at index zero.
-    __ mov(FieldOperand(edi, FixedArray::SizeFor(0)), eax);
-
-    // Install the new backing store in the JSArray.
-    __ mov(FieldOperand(edx, JSObject::kElementsOffset), edi);
-    __ RecordWriteField(edx, JSObject::kElementsOffset, edi, ebx,
-                        kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ mov(FieldOperand(edx, JSArray::kLengthOffset),
-           Immediate(Smi::FromInt(1)));
-    __ ret(0);
-
-    __ bind(&check_capacity);
-    __ cmp(FieldOperand(edi, HeapObject::kMapOffset),
-           Immediate(masm->isolate()->factory()->fixed_cow_array_map()));
-    __ j(equal, &miss_force_generic);
-
-    // eax: value
-    // ecx: key
-    // edx: receiver
-    // edi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ cmp(ecx, FieldOperand(edi, FixedArray::kLengthOffset));
-    __ j(above_equal, &slow);
-
-    // Grow the array and finish the store.
-    __ add(FieldOperand(edx, JSArray::kLengthOffset),
-           Immediate(Smi::FromInt(1)));
-    __ jmp(&finish_store);
-
-    __ bind(&prepare_slow);
-    // Restore the key, which is known to be the array length.
-    __ mov(ecx, Immediate(0));
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- eax    : value
-  //  -- ecx    : key
-  //  -- edx    : receiver
-  //  -- esp[0] : return address
-  // -----------------------------------
-  Label miss_force_generic, transition_elements_kind, grow, slow;
-  Label check_capacity, prepare_slow, finish_store, commit_backing_store;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, ecx, ebx, xmm0, xmm1, &miss_force_generic);
-
-  // Get the elements array.
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-  __ AssertFastElements(edi);
-
-  if (is_js_array) {
-    // Check that the key is within bounds.
-    __ cmp(ecx, FieldOperand(edx, JSArray::kLengthOffset));  // smis.
-    if (IsGrowStoreMode(store_mode)) {
-      __ j(above_equal, &grow);
-    } else {
-      __ j(above_equal, &miss_force_generic);
-    }
-  } else {
-    // Check that the key is within bounds.
-    __ cmp(ecx, FieldOperand(edi, FixedArray::kLengthOffset));  // smis.
-    __ j(above_equal, &miss_force_generic);
-  }
-
-  __ bind(&finish_store);
-  __ StoreNumberToDoubleElements(eax, edi, ecx, edx, xmm0,
-                                 &transition_elements_kind, true);
-  __ ret(0);
-
-  // Handle store cache miss, replacing the ic with the generic stub.
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  // Handle transition to other elements kinds without using the generic stub.
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Handle transition requiring the array to grow.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags are already set by previous
-    // compare.
-    __ j(not_equal, &miss_force_generic);
-
-    // Transition on values that can't be stored in a FixedDoubleArray.
-    Label value_is_smi;
-    __ JumpIfSmi(eax, &value_is_smi);
-    __ cmp(FieldOperand(eax, HeapObject::kMapOffset),
-           Immediate(Handle<Map>(masm->isolate()->heap()->heap_number_map())));
-    __ j(not_equal, &transition_elements_kind);
-    __ bind(&value_is_smi);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-    __ cmp(edi, Immediate(masm->isolate()->factory()->empty_fixed_array()));
-    __ j(not_equal, &check_capacity);
-
-    int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, edi, ebx, ecx, &prepare_slow, TAG_OBJECT);
-
-    // Restore the key, which is known to be the array length.
-    __ mov(ecx, Immediate(0));
-
-    // eax: value
-    // ecx: key
-    // edx: receiver
-    // edi: elements
-    // Initialize the new FixedDoubleArray.
-    __ mov(FieldOperand(edi, JSObject::kMapOffset),
-           Immediate(masm->isolate()->factory()->fixed_double_array_map()));
-    __ mov(FieldOperand(edi, FixedDoubleArray::kLengthOffset),
-           Immediate(Smi::FromInt(JSArray::kPreallocatedArrayElements)));
-
-    __ StoreNumberToDoubleElements(eax, edi, ecx, ebx, xmm0,
-                                   &transition_elements_kind, true);
-
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
-      int offset = FixedDoubleArray::OffsetOfElementAt(i);
-      __ mov(FieldOperand(edi, offset), Immediate(kHoleNanLower32));
-      __ mov(FieldOperand(edi, offset + kPointerSize),
-             Immediate(kHoleNanUpper32));
-    }
-
-    // Install the new backing store in the JSArray.
-    __ mov(FieldOperand(edx, JSObject::kElementsOffset), edi);
-    __ RecordWriteField(edx, JSObject::kElementsOffset, edi, ebx,
-                        kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ add(FieldOperand(edx, JSArray::kLengthOffset),
-           Immediate(Smi::FromInt(1)));
-    __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-    __ ret(0);
-
-    __ bind(&check_capacity);
-    // eax: value
-    // ecx: key
-    // edx: receiver
-    // edi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ cmp(ecx, FieldOperand(edi, FixedDoubleArray::kLengthOffset));
-    __ j(above_equal, &slow);
-
-    // Grow the array and finish the store.
-    __ add(FieldOperand(edx, JSArray::kLengthOffset),
-           Immediate(Smi::FromInt(1)));
-    __ jmp(&finish_store);
-
-    __ bind(&prepare_slow);
-    // Restore the key, which is known to be the array length.
-    __ mov(ecx, Immediate(0));
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
 #undef __
 
 } }  // namespace v8::internal

src/ic.cc

@@ -1847,18 +1847,6 @@ Handle<Code> KeyedStoreIC::StoreElementStub(Handle<JSObject> receiver,
     return strict_mode == kStrictMode ? generic_stub_strict() : generic_stub();
   }
 
-  if (!FLAG_compiled_keyed_stores &&
-      (store_mode == STORE_NO_TRANSITION_HANDLE_COW ||
-       store_mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS)) {
-    // TODO(danno): We'll soon handle MONOMORPHIC ICs that also support
-    // copying COW arrays and silently ignoring some OOB stores into external
-    // arrays, but for now use the generic.
-    TRACE_GENERIC_IC(isolate(), "KeyedIC", "COW/OOB external array");
-    return strict_mode == kStrictMode
-        ? generic_stub_strict()
-        : generic_stub();
-  }
-
   State ic_state = target()->ic_state();
   Handle<Map> receiver_map(receiver->map(), isolate());
   if (ic_state == UNINITIALIZED || ic_state == PREMONOMORPHIC) {
@@ -2139,8 +2127,7 @@ MaybeObject* KeyedStoreIC::Store(State state,
         if (receiver->map()->is_deprecated()) {
           JSObject::MigrateInstance(receiver);
         }
-        bool key_is_smi_like = key->IsSmi() ||
-            (FLAG_compiled_keyed_stores && !key->ToSmi()->IsFailure());
+        bool key_is_smi_like = key->IsSmi() || !key->ToSmi()->IsFailure();
         if (receiver->elements()->map() ==
             isolate()->heap()->non_strict_arguments_elements_map()) {
           stub = non_strict_arguments_stub();

src/stub-cache.cc

@@ -1855,9 +1855,8 @@ Handle<Code> KeyedStoreStubCompiler::CompileStoreElement(
   ElementsKind elements_kind = receiver_map->elements_kind();
   bool is_jsarray = receiver_map->instance_type() == JS_ARRAY_TYPE;
   Handle<Code> stub;
-  if (FLAG_compiled_keyed_stores &&
-      (receiver_map->has_fast_elements() ||
-       receiver_map->has_external_array_elements())) {
+  if (receiver_map->has_fast_elements() ||
+      receiver_map->has_external_array_elements()) {
     stub = KeyedStoreFastElementStub(
         is_jsarray,
         elements_kind,
@@ -1998,9 +1997,8 @@ Handle<Code> KeyedStoreStubCompiler::CompileStoreElementPolymorphic(
           is_js_array,
           store_mode_).GetCode(isolate());
     } else {
-      if (FLAG_compiled_keyed_stores &&
-          (receiver_map->has_fast_elements() ||
-           receiver_map->has_external_array_elements())) {
+      if (receiver_map->has_fast_elements() ||
+          receiver_map->has_external_array_elements()) {
         cached_stub = KeyedStoreFastElementStub(
             is_js_array,
             elements_kind,

src/stub-cache.h

@@ -984,18 +984,6 @@ class KeyedStoreStubCompiler: public BaseStoreStubCompiler {
 
   Handle<Code> CompileStoreElementPolymorphic(MapHandleList* receiver_maps);
 
-  static void GenerateStoreFastElement(MacroAssembler* masm,
-                                       bool is_js_array,
-                                       ElementsKind element_kind,
-                                       KeyedAccessStoreMode store_mode);
-
-  static void GenerateStoreFastDoubleElement(MacroAssembler* masm,
-                                             bool is_js_array,
-                                             KeyedAccessStoreMode store_mode);
-
-  static void GenerateStoreExternalArray(MacroAssembler* masm,
-                                         ElementsKind elements_kind);
-
   static void GenerateStoreDictionaryElement(MacroAssembler* masm);
 
  protected:

src/type-info.cc

@@ -152,12 +152,8 @@ bool TypeFeedbackOracle::StoreIsMonomorphicNormal(TypeFeedbackId ast_id) {
   if (map_or_code->IsMap()) return true;
   if (map_or_code->IsCode()) {
     Handle<Code> code = Handle<Code>::cast(map_or_code);
-    bool standard_store = FLAG_compiled_keyed_stores ||
-        (Code::GetKeyedAccessStoreMode(code->extra_ic_state()) ==
-         STANDARD_STORE);
     bool preliminary_checks =
         code->is_keyed_store_stub() &&
-        standard_store &&
         code->ic_state() == MONOMORPHIC &&
         Code::ExtractTypeFromFlags(code->flags()) == Code::NORMAL;
     if (!preliminary_checks) return false;
@@ -174,10 +170,7 @@ bool TypeFeedbackOracle::StoreIsKeyedPolymorphic(TypeFeedbackId ast_id) {
   Handle<Object> map_or_code = GetInfo(ast_id);
   if (map_or_code->IsCode()) {
     Handle<Code> code = Handle<Code>::cast(map_or_code);
-    bool standard_store = FLAG_compiled_keyed_stores ||
-        (Code::GetKeyedAccessStoreMode(code->extra_ic_state()) ==
-         STANDARD_STORE);
-    return code->is_keyed_store_stub() && standard_store &&
+    return code->is_keyed_store_stub() &&
         code->ic_state() == POLYMORPHIC;
   }
   return false;

src/x64/stub-cache-x64.cc

@@ -3037,484 +3037,6 @@ void KeyedLoadStubCompiler::GenerateLoadDictionaryElement(
 }
 
 
-static void GenerateSmiKeyCheck(MacroAssembler* masm,
-                                Register key,
-                                Register scratch,
-                                XMMRegister xmm_scratch0,
-                                XMMRegister xmm_scratch1,
-                                Label* fail) {
-  // Check that key is a smi or a heap number containing a smi and branch
-  // if the check fails.
-  Label key_ok;
-  __ JumpIfSmi(key, &key_ok);
-  __ CheckMap(key,
-              masm->isolate()->factory()->heap_number_map(),
-              fail,
-              DONT_DO_SMI_CHECK);
-  __ movsd(xmm_scratch0, FieldOperand(key, HeapNumber::kValueOffset));
-  __ cvttsd2si(scratch, xmm_scratch0);
-  __ cvtlsi2sd(xmm_scratch1, scratch);
-  __ ucomisd(xmm_scratch1, xmm_scratch0);
-  __ j(not_equal, fail);
-  __ j(parity_even, fail);  // NaN.
-  __ Integer32ToSmi(key, scratch);
-  __ bind(&key_ok);
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreExternalArray(
-    MacroAssembler* masm,
-    ElementsKind elements_kind) {
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  Label slow, miss_force_generic;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, rcx, rbx, xmm0, xmm1, &miss_force_generic);
-
-  // Check that the index is in range.
-  __ movq(rbx, FieldOperand(rdx, JSObject::kElementsOffset));
-  __ SmiToInteger32(rdi, rcx);  // Untag the index.
-  __ cmpq(rcx, FieldOperand(rbx, ExternalArray::kLengthOffset));
-  // Unsigned comparison catches both negative and too-large values.
-  __ j(above_equal, &miss_force_generic);
-
-  // Handle both smis and HeapNumbers in the fast path. Go to the
-  // runtime for all other kinds of values.
-  // rax: value
-  // rcx: key (a smi)
-  // rdx: receiver (a JSObject)
-  // rbx: elements array
-  // rdi: untagged key
-  Label check_heap_number;
-  if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) {
-    // Float to pixel conversion is only implemented in the runtime for now.
-    __ JumpIfNotSmi(rax, &slow);
-  } else {
-    __ JumpIfNotSmi(rax, &check_heap_number, Label::kNear);
-  }
-  // No more branches to slow case on this path.  Key and receiver not needed.
-  __ SmiToInteger32(rdx, rax);
-  __ movq(rbx, FieldOperand(rbx, ExternalArray::kExternalPointerOffset));
-  // rbx: base pointer of external storage
-  switch (elements_kind) {
-    case EXTERNAL_PIXEL_ELEMENTS:
-      {  // Clamp the value to [0..255].
-        Label done;
-        __ testl(rdx, Immediate(0xFFFFFF00));
-        __ j(zero, &done, Label::kNear);
-        __ setcc(negative, rdx);  // 1 if negative, 0 if positive.
-        __ decb(rdx);  // 0 if negative, 255 if positive.
-        __ bind(&done);
-      }
-      __ movb(Operand(rbx, rdi, times_1, 0), rdx);
-      break;
-    case EXTERNAL_BYTE_ELEMENTS:
-    case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-      __ movb(Operand(rbx, rdi, times_1, 0), rdx);
-      break;
-    case EXTERNAL_SHORT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-      __ movw(Operand(rbx, rdi, times_2, 0), rdx);
-      break;
-    case EXTERNAL_INT_ELEMENTS:
-    case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-      __ movl(Operand(rbx, rdi, times_4, 0), rdx);
-      break;
-    case EXTERNAL_FLOAT_ELEMENTS:
-      // Need to perform int-to-float conversion.
-      __ cvtlsi2ss(xmm0, rdx);
-      __ movss(Operand(rbx, rdi, times_4, 0), xmm0);
-      break;
-    case EXTERNAL_DOUBLE_ELEMENTS:
-      // Need to perform int-to-float conversion.
-      __ cvtlsi2sd(xmm0, rdx);
-      __ movsd(Operand(rbx, rdi, times_8, 0), xmm0);
-      break;
-    case FAST_ELEMENTS:
-    case FAST_SMI_ELEMENTS:
-    case FAST_DOUBLE_ELEMENTS:
-    case FAST_HOLEY_ELEMENTS:
-    case FAST_HOLEY_SMI_ELEMENTS:
-    case FAST_HOLEY_DOUBLE_ELEMENTS:
-    case DICTIONARY_ELEMENTS:
-    case NON_STRICT_ARGUMENTS_ELEMENTS:
-      UNREACHABLE();
-      break;
-  }
-  __ ret(0);
-
-  // TODO(danno): handle heap number -> pixel array conversion
-  if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) {
-    __ bind(&check_heap_number);
-    // rax: value
-    // rcx: key (a smi)
-    // rdx: receiver (a JSObject)
-    // rbx: elements array
-    // rdi: untagged key
-    __ CmpObjectType(rax, HEAP_NUMBER_TYPE, kScratchRegister);
-    __ j(not_equal, &slow);
-    // No more branches to slow case on this path.
-
-    // The WebGL specification leaves the behavior of storing NaN and
-    // +/-Infinity into integer arrays basically undefined. For more
-    // reproducible behavior, convert these to zero.
-    __ movsd(xmm0, FieldOperand(rax, HeapNumber::kValueOffset));
-    __ movq(rbx, FieldOperand(rbx, ExternalArray::kExternalPointerOffset));
-    // rdi: untagged index
-    // rbx: base pointer of external storage
-    // top of FPU stack: value
-    if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-      __ cvtsd2ss(xmm0, xmm0);
-      __ movss(Operand(rbx, rdi, times_4, 0), xmm0);
-      __ ret(0);
-    } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-      __ movsd(Operand(rbx, rdi, times_8, 0), xmm0);
-      __ ret(0);
-    } else {
-      // Perform float-to-int conversion with truncation (round-to-zero)
-      // behavior.
-      // Fast path: use machine instruction to convert to int64. If that
-      // fails (out-of-range), go into the runtime.
-      __ cvttsd2siq(r8, xmm0);
-      __ Set(kScratchRegister, V8_UINT64_C(0x8000000000000000));
-      __ cmpq(r8, kScratchRegister);
-      __ j(equal, &slow);
-
-      // rdx: value (converted to an untagged integer)
-      // rdi: untagged index
-      // rbx: base pointer of external storage
-      switch (elements_kind) {
-        case EXTERNAL_BYTE_ELEMENTS:
-        case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-          __ movb(Operand(rbx, rdi, times_1, 0), r8);
-          break;
-        case EXTERNAL_SHORT_ELEMENTS:
-        case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-          __ movw(Operand(rbx, rdi, times_2, 0), r8);
-          break;
-        case EXTERNAL_INT_ELEMENTS:
-        case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-          __ movl(Operand(rbx, rdi, times_4, 0), r8);
-          break;
-        case EXTERNAL_PIXEL_ELEMENTS:
-        case EXTERNAL_FLOAT_ELEMENTS:
-        case EXTERNAL_DOUBLE_ELEMENTS:
-        case FAST_ELEMENTS:
-        case FAST_SMI_ELEMENTS:
-        case FAST_DOUBLE_ELEMENTS:
-        case FAST_HOLEY_ELEMENTS:
-        case FAST_HOLEY_SMI_ELEMENTS:
-        case FAST_HOLEY_DOUBLE_ELEMENTS:
-        case DICTIONARY_ELEMENTS:
-        case NON_STRICT_ARGUMENTS_ELEMENTS:
-          UNREACHABLE();
-          break;
-      }
-      __ ret(0);
-    }
-  }
-
-  // Slow case: call runtime.
-  __ bind(&slow);
-
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-
-  // Miss case: call runtime.
-  __ bind(&miss_force_generic);
-
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    ElementsKind elements_kind,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  Label miss_force_generic, transition_elements_kind, finish_store, grow;
-  Label check_capacity, slow;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, rcx, rbx, xmm0, xmm1, &miss_force_generic);
-
-  if (IsFastSmiElementsKind(elements_kind)) {
-    __ JumpIfNotSmi(rax, &transition_elements_kind);
-  }
-
-  // Get the elements array and make sure it is a fast element array, not 'cow'.
-  __ movq(rdi, FieldOperand(rdx, JSObject::kElementsOffset));
-  // Check that the key is within bounds.
-  if (is_js_array) {
-    __ SmiCompare(rcx, FieldOperand(rdx, JSArray::kLengthOffset));
-    if (IsGrowStoreMode(store_mode)) {
-      __ j(above_equal, &grow);
-    } else {
-      __ j(above_equal, &miss_force_generic);
-    }
-  } else {
-    __ SmiCompare(rcx, FieldOperand(rdi, FixedArray::kLengthOffset));
-    __ j(above_equal, &miss_force_generic);
-  }
-
-  __ CompareRoot(FieldOperand(rdi, HeapObject::kMapOffset),
-                 Heap::kFixedArrayMapRootIndex);
-  __ j(not_equal, &miss_force_generic);
-
-  __ bind(&finish_store);
-  if (IsFastSmiElementsKind(elements_kind)) {
-    __ SmiToInteger32(rcx, rcx);
-    __ movq(FieldOperand(rdi, rcx, times_pointer_size, FixedArray::kHeaderSize),
-            rax);
-  } else {
-    // Do the store and update the write barrier.
-    ASSERT(IsFastObjectElementsKind(elements_kind));
-    __ SmiToInteger32(rcx, rcx);
-    __ lea(rcx,
-           FieldOperand(rdi, rcx, times_pointer_size, FixedArray::kHeaderSize));
-    __ movq(Operand(rcx, 0), rax);
-    // Make sure to preserve the value in register rax.
-    __ movq(rbx, rax);
-    __ RecordWrite(rdi, rcx, rbx, kDontSaveFPRegs);
-  }
-
-  // Done.
-  __ ret(0);
-
-  // Handle store cache miss.
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Grow the array by a single element if possible.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags are already set by previous
-    // compare.
-    __ j(not_equal, &miss_force_generic);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ movq(rdi, FieldOperand(rdx, JSObject::kElementsOffset));
-    __ CompareRoot(rdi, Heap::kEmptyFixedArrayRootIndex);
-    __ j(not_equal, &check_capacity);
-
-    int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, rdi, rbx, r8, &slow, TAG_OBJECT);
-
-    // rax: value
-    // rcx: key
-    // rdx: receiver
-    // rdi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ Move(FieldOperand(rdi, JSObject::kMapOffset),
-            masm->isolate()->factory()->fixed_array_map());
-    __ Move(FieldOperand(rdi, FixedArray::kLengthOffset),
-            Smi::FromInt(JSArray::kPreallocatedArrayElements));
-    __ LoadRoot(rbx, Heap::kTheHoleValueRootIndex);
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) {
-      __ movq(FieldOperand(rdi, FixedArray::SizeFor(i)), rbx);
-    }
-
-    // Store the element at index zero.
-    __ movq(FieldOperand(rdi, FixedArray::SizeFor(0)), rax);
-
-    // Install the new backing store in the JSArray.
-    __ movq(FieldOperand(rdx, JSObject::kElementsOffset), rdi);
-    __ RecordWriteField(rdx, JSObject::kElementsOffset, rdi, rbx,
-                        kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ Move(FieldOperand(rdx, JSArray::kLengthOffset), Smi::FromInt(1));
-    __ ret(0);
-
-    __ bind(&check_capacity);
-    // Check for cow elements, in general they are not handled by this stub.
-    __ CompareRoot(FieldOperand(rdi, HeapObject::kMapOffset),
-                   Heap::kFixedCOWArrayMapRootIndex);
-    __ j(equal, &miss_force_generic);
-
-    // rax: value
-    // rcx: key
-    // rdx: receiver
-    // rdi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ cmpq(rcx, FieldOperand(rdi, FixedArray::kLengthOffset));
-    __ j(above_equal, &slow);
-
-    // Grow the array and finish the store.
-    __ SmiAddConstant(FieldOperand(rdx, JSArray::kLengthOffset),
-                      Smi::FromInt(1));
-    __ jmp(&finish_store);
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
-void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
-    MacroAssembler* masm,
-    bool is_js_array,
-    KeyedAccessStoreMode store_mode) {
-  // ----------- S t a t e -------------
-  //  -- rax    : value
-  //  -- rcx    : key
-  //  -- rdx    : receiver
-  //  -- rsp[0] : return address
-  // -----------------------------------
-  Label miss_force_generic, transition_elements_kind, finish_store;
-  Label grow, slow, check_capacity, restore_key_transition_elements_kind;
-
-  // This stub is meant to be tail-jumped to, the receiver must already
-  // have been verified by the caller to not be a smi.
-
-  // Check that the key is a smi or a heap number convertible to a smi.
-  GenerateSmiKeyCheck(masm, rcx, rbx, xmm0, xmm1, &miss_force_generic);
-
-  // Get the elements array.
-  __ movq(rdi, FieldOperand(rdx, JSObject::kElementsOffset));
-  __ AssertFastElements(rdi);
-
-  // Check that the key is within bounds.
-  if (is_js_array) {
-      __ SmiCompare(rcx, FieldOperand(rdx, JSArray::kLengthOffset));
-      if (IsGrowStoreMode(store_mode)) {
-        __ j(above_equal, &grow);
-      } else {
-        __ j(above_equal, &miss_force_generic);
-      }
-  } else {
-    __ SmiCompare(rcx, FieldOperand(rdi, FixedDoubleArray::kLengthOffset));
-    __ j(above_equal, &miss_force_generic);
-  }
-
-  // Handle smi values specially
-  __ bind(&finish_store);
-  __ SmiToInteger32(rcx, rcx);
-  __ StoreNumberToDoubleElements(rax, rdi, rcx, xmm0,
-                                 &restore_key_transition_elements_kind);
-  __ ret(0);
-
-  // Handle store cache miss, replacing the ic with the generic stub.
-  __ bind(&miss_force_generic);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric);
-
-  __ bind(&restore_key_transition_elements_kind);
-  // Restore smi-tagging of rcx.
-  __ Integer32ToSmi(rcx, rcx);
-  __ bind(&transition_elements_kind);
-  TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss);
-
-  if (is_js_array && IsGrowStoreMode(store_mode)) {
-    // Grow the array by a single element if possible.
-    __ bind(&grow);
-
-    // Make sure the array is only growing by a single element, anything else
-    // must be handled by the runtime. Flags are already set by previous
-    // compare.
-    __ j(not_equal, &miss_force_generic);
-
-    // Transition on values that can't be stored in a FixedDoubleArray.
-    Label value_is_smi;
-    __ JumpIfSmi(rax, &value_is_smi);
-    __ CompareRoot(FieldOperand(rax, HeapObject::kMapOffset),
-                   Heap::kHeapNumberMapRootIndex);
-    __ j(not_equal, &transition_elements_kind);
-    __ bind(&value_is_smi);
-
-    // Check for the empty array, and preallocate a small backing store if
-    // possible.
-    __ movq(rdi, FieldOperand(rdx, JSObject::kElementsOffset));
-    __ CompareRoot(rdi, Heap::kEmptyFixedArrayRootIndex);
-    __ j(not_equal, &check_capacity);
-
-    int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements);
-    __ Allocate(size, rdi, rbx, r8, &slow, TAG_OBJECT);
-
-    // rax: value
-    // rcx: key
-    // rdx: receiver
-    // rdi: elements
-    // Initialize the new FixedDoubleArray. Leave elements unitialized for
-    // efficiency, they are guaranteed to be initialized before use.
-    __ Move(FieldOperand(rdi, JSObject::kMapOffset),
-            masm->isolate()->factory()->fixed_double_array_map());
-    __ Move(FieldOperand(rdi, FixedDoubleArray::kLengthOffset),
-            Smi::FromInt(JSArray::kPreallocatedArrayElements));
-
-    // Increment the length of the array.
-    __ SmiToInteger32(rcx, rcx);
-    __ StoreNumberToDoubleElements(rax, rdi, rcx, xmm0,
-                                   &restore_key_transition_elements_kind);
-
-    __ movq(r8, BitCast<int64_t, uint64_t>(kHoleNanInt64), RelocInfo::NONE64);
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
-      __ movq(FieldOperand(rdi, FixedDoubleArray::OffsetOfElementAt(i)), r8);
-    }
-
-    // Install the new backing store in the JSArray.
-    __ movq(FieldOperand(rdx, JSObject::kElementsOffset), rdi);
-    __ RecordWriteField(rdx, JSObject::kElementsOffset, rdi, rbx,
-                        kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
-
-    // Increment the length of the array.
-    __ Move(FieldOperand(rdx, JSArray::kLengthOffset), Smi::FromInt(1));
-    __ movq(rdi, FieldOperand(rdx, JSObject::kElementsOffset));
-    __ ret(0);
-
-    __ bind(&check_capacity);
-    // rax: value
-    // rcx: key
-    // rdx: receiver
-    // rdi: elements
-    // Make sure that the backing store can hold additional elements.
-    __ cmpq(rcx, FieldOperand(rdi, FixedDoubleArray::kLengthOffset));
-    __ j(above_equal, &slow);
-
-    // Grow the array and finish the store.
-    __ SmiAddConstant(FieldOperand(rdx, JSArray::kLengthOffset),
-                      Smi::FromInt(1));
-    __ jmp(&finish_store);
-
-    __ bind(&slow);
-    TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow);
-  }
-}
-
-
 #undef __
 
 } }  // namespace v8::internal