Consolidated all the key store/load classes in the Hydrogen and Lithium

src/x64/lithium-codegen-x64.cc

 // Copyright 2012 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 2594 matching lines @@
   // Subtracting from length accounts for one of them add one more.
   if (instr->index()->IsRegister()) {
     __ subl(length, ToRegister(instr->index()));
   } else {
     __ subl(length, ToOperand(instr->index()));
   }
   __ movq(result, Operand(arguments, length, times_pointer_size, kPointerSize));
 }
 
 
-void LCodeGen::DoLoadKeyedFastElement(LLoadKeyedFastElement* instr) {
-  Register result = ToRegister(instr->result());
+void LCodeGen::DoLoadKeyedExternalArray(LLoadKeyed* instr) {
+  ElementsKind elements_kind = instr->elements_kind();
   LOperand* key = instr->key();
   if (!key->IsConstantOperand()) {
     Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
-    // representation for the key to be an integer, the input gets replaced
-    // during bound check elimination with the index argument to the bounds
-    // check, which can be tagged, so that case must be handled here, too.
+    // Even though the HLoad/StoreKeyed (in this case) instructions force
+    // the input representation for the key to be an integer, the input
+    // gets replaced during bound check elimination with the index argument
+    // to the bounds check, which can be tagged, so that case must be
+    // handled here, too.
     if (instr->hydrogen()->key()->representation().IsTagged()) {
       __ SmiToInteger64(key_reg, key_reg);
     } else if (instr->hydrogen()->IsDehoisted()) {
       // Sign extend key because it could be a 32 bit negative value
       // and the dehoisted address computation happens in 64 bits
       __ movsxlq(key_reg, key_reg);
     }
   }
+  Operand operand(BuildFastArrayOperand(
+      instr->elements(),
+      key,
+      elements_kind,
+      0,
+      instr->additional_index()));
 
-  // Load the result.
-  __ movq(result,
-          BuildFastArrayOperand(instr->elements(),
-                                key,
-                                FAST_ELEMENTS,
-                                FixedArray::kHeaderSize - kHeapObjectTag,
-                                instr->additional_index()));
-
-  // Check for the hole value.
-  if (instr->hydrogen()->RequiresHoleCheck()) {
-    if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) {
-      Condition smi = __ CheckSmi(result);
-      DeoptimizeIf(NegateCondition(smi), instr->environment());
-    } else {
-      __ CompareRoot(result, Heap::kTheHoleValueRootIndex);
-      DeoptimizeIf(equal, instr->environment());
+  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
+    XMMRegister result(ToDoubleRegister(instr->result()));
+    __ movss(result, operand);
+    __ cvtss2sd(result, result);
+  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
+    __ movsd(ToDoubleRegister(instr->result()), operand);
+  } else {
+    Register result(ToRegister(instr->result()));
+    switch (elements_kind) {
+      case EXTERNAL_BYTE_ELEMENTS:
+        __ movsxbq(result, operand);
+        break;
+      case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
+      case EXTERNAL_PIXEL_ELEMENTS:
+        __ movzxbq(result, operand);
+        break;
+      case EXTERNAL_SHORT_ELEMENTS:
+        __ movsxwq(result, operand);
+        break;
+      case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
+        __ movzxwq(result, operand);
+        break;
+      case EXTERNAL_INT_ELEMENTS:
+        __ movsxlq(result, operand);
+        break;
+      case EXTERNAL_UNSIGNED_INT_ELEMENTS:
+        __ movl(result, operand);
+        if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
+          __ testl(result, result);
+          DeoptimizeIf(negative, instr->environment());
+        }
+        break;
+      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;
     }
   }
 }
 
 
-void LCodeGen::DoLoadKeyedFastDoubleElement(
-    LLoadKeyedFastDoubleElement* instr) {
+void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) {
   XMMRegister result(ToDoubleRegister(instr->result()));
   LOperand* key = instr->key();
   if (!key->IsConstantOperand()) {
     Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
+    // Even though the HLoad/StoreKeyed instructions force the input
     // representation for the key to be an integer, the input gets replaced
     // during bound check elimination with the index argument to the bounds
     // check, which can be tagged, so that case must be handled here, too.
     if (instr->hydrogen()->key()->representation().IsTagged()) {
       __ SmiToInteger64(key_reg, key_reg);
     } else if (instr->hydrogen()->IsDehoisted()) {
       // Sign extend key because it could be a 32 bit negative value
       // and the dehoisted address computation happens in 64 bits
       __ movsxlq(key_reg, key_reg);
     }
@@ skipping 15 matching lines @@
   Operand double_load_operand = BuildFastArrayOperand(
       instr->elements(),
       key,
       FAST_DOUBLE_ELEMENTS,
       FixedDoubleArray::kHeaderSize - kHeapObjectTag,
       instr->additional_index());
   __ movsd(result, double_load_operand);
 }
 
 
+void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) {
+  Register result = ToRegister(instr->result());
+  LOperand* key = instr->key();
+  if (!key->IsConstantOperand()) {
+    Register key_reg = ToRegister(key);
+    // Even though the HLoad/StoreKeyedFastElement instructions force
+    // the input representation for the key to be an integer, the input
+    // gets replaced during bound check elimination with the index
+    // argument to the bounds check, which can be tagged, so that
+    // case must be handled here, too.
+    if (instr->hydrogen()->key()->representation().IsTagged()) {
+      __ SmiToInteger64(key_reg, key_reg);
+    } else if (instr->hydrogen()->IsDehoisted()) {
+      // Sign extend key because it could be a 32 bit negative value
+      // and the dehoisted address computation happens in 64 bits
+      __ movsxlq(key_reg, key_reg);
+    }
+  }
+
+  // Load the result.
+  __ movq(result,
+          BuildFastArrayOperand(instr->elements(),
+                                key,
+                                FAST_ELEMENTS,
+                                FixedArray::kHeaderSize - kHeapObjectTag,
+                                instr->additional_index()));
+
+  // Check for the hole value.
+  if (instr->hydrogen()->RequiresHoleCheck()) {
+    if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) {
+      Condition smi = __ CheckSmi(result);
+      DeoptimizeIf(NegateCondition(smi), instr->environment());
+    } else {
+      __ CompareRoot(result, Heap::kTheHoleValueRootIndex);
+      DeoptimizeIf(equal, instr->environment());
+    }
+  }
+}
+
+
+void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) {
+  if (instr->is_external()) {
+    DoLoadKeyedExternalArray(instr);
+  } else if (instr->hydrogen()->representation().IsDouble()) {
+    DoLoadKeyedFixedDoubleArray(instr);
+  } else {
+    DoLoadKeyedFixedArray(instr);
+  }
+}
+
+
 Operand LCodeGen::BuildFastArrayOperand(
     LOperand* elements_pointer,
     LOperand* key,
     ElementsKind elements_kind,
     uint32_t offset,
     uint32_t additional_index) {
   Register elements_pointer_reg = ToRegister(elements_pointer);
   int shift_size = ElementsKindToShiftSize(elements_kind);
   if (key->IsConstantOperand()) {
     int constant_value = ToInteger32(LConstantOperand::cast(key));
     if (constant_value & 0xF0000000) {
       Abort("array index constant value too big");
     }
     return Operand(elements_pointer_reg,
                    ((constant_value + additional_index) << shift_size)
                        + offset);
   } else {
     ScaleFactor scale_factor = static_cast<ScaleFactor>(shift_size);
     return Operand(elements_pointer_reg,
                    ToRegister(key),
                    scale_factor,
                    offset + (additional_index << shift_size));
   }
 }
 
 
-void LCodeGen::DoLoadKeyedSpecializedArrayElement(
-    LLoadKeyedSpecializedArrayElement* instr) {
-  ElementsKind elements_kind = instr->elements_kind();
-  LOperand* key = instr->key();
-  if (!key->IsConstantOperand()) {
-    Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
-    // representation for the key to be an integer, the input gets replaced
-    // during bound check elimination with the index argument to the bounds
-    // check, which can be tagged, so that case must be handled here, too.
-    if (instr->hydrogen()->key()->representation().IsTagged()) {
-      __ SmiToInteger64(key_reg, key_reg);
-    } else if (instr->hydrogen()->IsDehoisted()) {
-      // Sign extend key because it could be a 32 bit negative value
-      // and the dehoisted address computation happens in 64 bits
-      __ movsxlq(key_reg, key_reg);
-    }
-  }
-  Operand operand(BuildFastArrayOperand(
-      instr->external_pointer(),
-      key,
-      elements_kind,
-      0,
-      instr->additional_index()));
-
-  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-    XMMRegister result(ToDoubleRegister(instr->result()));
-    __ movss(result, operand);
-    __ cvtss2sd(result, result);
-  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-    __ movsd(ToDoubleRegister(instr->result()), operand);
-  } else {
-    Register result(ToRegister(instr->result()));
-    switch (elements_kind) {
-      case EXTERNAL_BYTE_ELEMENTS:
-        __ movsxbq(result, operand);
-        break;
-      case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-      case EXTERNAL_PIXEL_ELEMENTS:
-        __ movzxbq(result, operand);
-        break;
-      case EXTERNAL_SHORT_ELEMENTS:
-        __ movsxwq(result, operand);
-        break;
-      case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-        __ movzxwq(result, operand);
-        break;
-      case EXTERNAL_INT_ELEMENTS:
-        __ movsxlq(result, operand);
-        break;
-      case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-        __ movl(result, operand);
-        if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
-          __ testl(result, result);
-          DeoptimizeIf(negative, instr->environment());
-        }
-        break;
-      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;
-    }
-  }
-}
-
-
 void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(rdx));
   ASSERT(ToRegister(instr->key()).is(rax));
 
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
@@ skipping 852 matching lines @@
   ASSERT(ToRegister(instr->value()).is(rax));
 
   __ Move(rcx, instr->hydrogen()->name());
   Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode)
       ? isolate()->builtins()->StoreIC_Initialize_Strict()
       : isolate()->builtins()->StoreIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
-void LCodeGen::DoStoreKeyedSpecializedArrayElement(
-    LStoreKeyedSpecializedArrayElement* instr) {
-  ElementsKind elements_kind = instr->elements_kind();
-  LOperand* key = instr->key();
-  if (!key->IsConstantOperand()) {
-    Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
-    // representation for the key to be an integer, the input gets replaced
-    // during bound check elimination with the index argument to the bounds
-    // check, which can be tagged, so that case must be handled here, too.
-    if (instr->hydrogen()->key()->representation().IsTagged()) {
-      __ SmiToInteger64(key_reg, key_reg);
-    } else if (instr->hydrogen()->IsDehoisted()) {
-      // Sign extend key because it could be a 32 bit negative value
-      // and the dehoisted address computation happens in 64 bits
-      __ movsxlq(key_reg, key_reg);
-    }
-  }
-  Operand operand(BuildFastArrayOperand(
-      instr->external_pointer(),
-      key,
-      elements_kind,
-      0,
-      instr->additional_index()));
-
-  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
-    XMMRegister value(ToDoubleRegister(instr->value()));
-    __ cvtsd2ss(value, value);
-    __ movss(operand, value);
-  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
-    __ movsd(operand, ToDoubleRegister(instr->value()));
-  } else {
-    Register value(ToRegister(instr->value()));
-    switch (elements_kind) {
-      case EXTERNAL_PIXEL_ELEMENTS:
-      case EXTERNAL_BYTE_ELEMENTS:
-      case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
-        __ movb(operand, value);
-        break;
-      case EXTERNAL_SHORT_ELEMENTS:
-      case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
-        __ movw(operand, value);
-        break;
-      case EXTERNAL_INT_ELEMENTS:
-      case EXTERNAL_UNSIGNED_INT_ELEMENTS:
-        __ movl(operand, value);
-        break;
-      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;
-    }
-  }
-}
-
-
 void LCodeGen::DeoptIfTaggedButNotSmi(LEnvironment* environment,
                                       HValue* value,
                                       LOperand* operand) {
   if (value->representation().IsTagged() && !value->type().IsSmi()) {
     Condition cc;
     if (operand->IsRegister()) {
       cc = masm()->CheckSmi(ToRegister(operand));
     } else {
       cc = masm()->CheckSmi(ToOperand(operand));
     }
@@ skipping 40 matching lines @@
         __ cmpq(length, Immediate(constant_index));
       }
     } else {
       __ cmpq(length, ToRegister(instr->index()));
     }
   }
   DeoptimizeIf(below_equal, instr->environment());
 }
 
 
-void LCodeGen::DoStoreKeyedFastElement(LStoreKeyedFastElement* instr) {
-  Register value = ToRegister(instr->value());
-  Register elements = ToRegister(instr->object());
+void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) {
+  ElementsKind elements_kind = instr->elements_kind();
   LOperand* key = instr->key();
   if (!key->IsConstantOperand()) {
     Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
-    // representation for the key to be an integer, the input gets replaced
-    // during bound check elimination with the index argument to the bounds
-    // check, which can be tagged, so that case must be handled here, too.
+    // Even though the HLoad/StoreKeyedFastElement instructions force
+    // the input representation for the key to be an integer, the input
+    // gets replaced during bound check elimination with the index
+    // argument to the bounds check, which can be tagged, so that case
+    // must be handled here, too.
     if (instr->hydrogen()->key()->representation().IsTagged()) {
       __ SmiToInteger64(key_reg, key_reg);
     } else if (instr->hydrogen()->IsDehoisted()) {
       // Sign extend key because it could be a 32 bit negative value
       // and the dehoisted address computation happens in 64 bits
       __ movsxlq(key_reg, key_reg);
     }
   }
+  Operand operand(BuildFastArrayOperand(
+      instr->elements(),
+      key,
+      elements_kind,
+      0,
+      instr->additional_index()));
 
-  Operand operand =
-      BuildFastArrayOperand(instr->object(),
-                            key,
-                            FAST_ELEMENTS,
-                            FixedArray::kHeaderSize - kHeapObjectTag,
-                            instr->additional_index());
-
-  if (instr->hydrogen()->NeedsWriteBarrier()) {
-    ASSERT(!instr->key()->IsConstantOperand());
-    HType type = instr->hydrogen()->value()->type();
-    SmiCheck check_needed =
-        type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK;
-    // Compute address of modified element and store it into key register.
-    Register key_reg(ToRegister(key));
-    __ lea(key_reg, operand);
-    __ movq(Operand(key_reg, 0), value);
-    __ RecordWrite(elements,
-                   key_reg,
-                   value,
-                   kSaveFPRegs,
-                   EMIT_REMEMBERED_SET,
-                   check_needed);
+  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
+    XMMRegister value(ToDoubleRegister(instr->value()));
+    __ cvtsd2ss(value, value);
+    __ movss(operand, value);
+  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
+    __ movsd(operand, ToDoubleRegister(instr->value()));
   } else {
-    __ movq(operand, value);
+    Register value(ToRegister(instr->value()));
+    switch (elements_kind) {
+      case EXTERNAL_PIXEL_ELEMENTS:
+      case EXTERNAL_BYTE_ELEMENTS:
+      case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
+        __ movb(operand, value);
+        break;
+      case EXTERNAL_SHORT_ELEMENTS:
+      case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
+        __ movw(operand, value);
+        break;
+      case EXTERNAL_INT_ELEMENTS:
+      case EXTERNAL_UNSIGNED_INT_ELEMENTS:
+        __ movl(operand, value);
+        break;
+      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;
+    }
   }
 }
 
 
-void LCodeGen::DoStoreKeyedFastDoubleElement(
-    LStoreKeyedFastDoubleElement* instr) {
+void LCodeGen::DoStoreKeyedFixedDoubleArray(LStoreKeyed* instr) {
   XMMRegister value = ToDoubleRegister(instr->value());
   LOperand* key = instr->key();
   if (!key->IsConstantOperand()) {
     Register key_reg = ToRegister(key);
-    // Even though the HLoad/StoreKeyedFastElement instructions force the input
-    // representation for the key to be an integer, the input gets replaced
-    // during bound check elimination with the index argument to the bounds
-    // check, which can be tagged, so that case must be handled here, too.
+    // Even though the HLoad/StoreKeyedFastElement instructions force
+    // the input representation for the key to be an integer, the
+    // input gets replaced during bound check elimination with the index
+    // argument to the bounds check, which can be tagged, so that case
+    // must be handled here, too.
     if (instr->hydrogen()->key()->representation().IsTagged()) {
       __ SmiToInteger64(key_reg, key_reg);
     } else if (instr->hydrogen()->IsDehoisted()) {
       // Sign extend key because it could be a 32 bit negative value
       // and the dehoisted address computation happens in 64 bits
       __ movsxlq(key_reg, key_reg);
     }
   }
 
   if (instr->NeedsCanonicalization()) {
@@ skipping 12 matching lines @@
   Operand double_store_operand = BuildFastArrayOperand(
       instr->elements(),
       key,
       FAST_DOUBLE_ELEMENTS,
       FixedDoubleArray::kHeaderSize - kHeapObjectTag,
       instr->additional_index());
 
   __ movsd(double_store_operand, value);
 }
 
+
+void LCodeGen::DoStoreKeyedFixedArray(LStoreKeyed* instr) {
+  Register value = ToRegister(instr->value());
+  Register elements = ToRegister(instr->elements());
+  LOperand* key = instr->key();
+  if (!key->IsConstantOperand()) {
+    Register key_reg = ToRegister(key);
+    // Even though the HLoad/StoreKeyedFastElement instructions force
+    // the input representation for the key to be an integer, the
+    // input gets replaced during bound check elimination with the index
+    // argument to the bounds check, which can be tagged, so that case
+    // must be handled here, too.
+    if (instr->hydrogen()->key()->representation().IsTagged()) {
+      __ SmiToInteger64(key_reg, key_reg);
+    } else if (instr->hydrogen()->IsDehoisted()) {
+      // Sign extend key because it could be a 32 bit negative value
+      // and the dehoisted address computation happens in 64 bits
+      __ movsxlq(key_reg, key_reg);
+    }
+  }
+
+  Operand operand =
+      BuildFastArrayOperand(instr->elements(),
+                            key,
+                            FAST_ELEMENTS,
+                            FixedArray::kHeaderSize - kHeapObjectTag,
+                            instr->additional_index());
+
+  if (instr->hydrogen()->NeedsWriteBarrier()) {
+    ASSERT(!instr->key()->IsConstantOperand());
+    HType type = instr->hydrogen()->value()->type();
+    SmiCheck check_needed =
+        type.IsHeapObject() ? OMIT_SMI_CHECK : INLINE_SMI_CHECK;
+    // Compute address of modified element and store it into key register.
+    Register key_reg(ToRegister(key));
+    __ lea(key_reg, operand);
+    __ movq(Operand(key_reg, 0), value);
+    __ RecordWrite(elements,
+                   key_reg,
+                   value,
+                   kSaveFPRegs,
+                   EMIT_REMEMBERED_SET,
+                   check_needed);
+  } else {
+    __ movq(operand, value);
+  }
+}
+
+
+void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) {
+  if (instr->is_external()) {
+    DoStoreKeyedExternalArray(instr);
+  } else if (instr->hydrogen()->value()->representation().IsDouble()) {
+    DoStoreKeyedFixedDoubleArray(instr);
+  } else {
+    DoStoreKeyedFixedArray(instr);
+  }
+}
+
+
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(rdx));
   ASSERT(ToRegister(instr->key()).is(rcx));
   ASSERT(ToRegister(instr->value()).is(rax));
 
   Handle<Code> ic = (instr->strict_mode_flag() == kStrictMode)
       ? isolate()->builtins()->KeyedStoreIC_Initialize_Strict()
       : isolate()->builtins()->KeyedStoreIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
@@ skipping 1420 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64