Implement in-heap backing store for typed arrays.

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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 2942 matching lines @@
     // 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()->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);
     }
   }
+  int base_offset = instr->is_fixed_typed_array()
+    ? FixedTypedArrayBase::kDataOffset - kHeapObjectTag
+    : 0;
   Operand operand(BuildFastArrayOperand(
       instr->elements(),
       key,
       elements_kind,
-      0,
+      base_offset,
       instr->additional_index()));
 
-  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS) {
     XMMRegister result(ToDoubleRegister(instr->result()));
     __ movss(result, operand);
     __ cvtss2sd(result, result);
-  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
+  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS ||
+             elements_kind == FLOAT64_ELEMENTS) {
     __ movsd(ToDoubleRegister(instr->result()), operand);
   } else {
     Register result(ToRegister(instr->result()));
     switch (elements_kind) {
       case EXTERNAL_BYTE_ELEMENTS:
+      case INT8_ELEMENTS:
         __ movsxbq(result, operand);
         break;
       case EXTERNAL_UNSIGNED_BYTE_ELEMENTS:
       case EXTERNAL_PIXEL_ELEMENTS:
+      case UINT8_ELEMENTS:
+      case UINT8_CLAMPED_ELEMENTS:
         __ movzxbq(result, operand);
         break;
       case EXTERNAL_SHORT_ELEMENTS:
+      case INT16_ELEMENTS:
         __ movsxwq(result, operand);
         break;
       case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
+      case UINT16_ELEMENTS:
         __ movzxwq(result, operand);
         break;
       case EXTERNAL_INT_ELEMENTS:
+      case INT32_ELEMENTS:
         __ movsxlq(result, operand);
         break;
       case EXTERNAL_UNSIGNED_INT_ELEMENTS:
+      case UINT32_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 FLOAT32_ELEMENTS:
+      case FLOAT64_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;
@@ skipping 87 matching lines @@
       DeoptimizeIf(NegateCondition(smi), instr->environment());
     } else {
       __ CompareRoot(result, Heap::kTheHoleValueRootIndex);
       DeoptimizeIf(equal, instr->environment());
     }
   }
 }
 
 
 void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) {
-  if (instr->is_external()) {
+  if (instr->is_external() || instr->is_fixed_typed_array()) {
     DoLoadKeyedExternalArray(instr);
   } else if (instr->hydrogen()->representation().IsDouble()) {
     DoLoadKeyedFixedDoubleArray(instr);
   } else {
     DoLoadKeyedFixedArray(instr);
   }
 }
 
 
 Operand LCodeGen::BuildFastArrayOperand(
@@ skipping 1021 matching lines @@
     // 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()->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);
     }
   }
+  int base_offset = instr->is_fixed_typed_array()
+    ? FixedTypedArrayBase::kDataOffset - kHeapObjectTag
+    : 0;
   Operand operand(BuildFastArrayOperand(
       instr->elements(),
       key,
       elements_kind,
-      0,
+      base_offset,
       instr->additional_index()));
 
-  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) {
+  if (elements_kind == EXTERNAL_FLOAT_ELEMENTS ||
+      elements_kind == FLOAT32_ELEMENTS) {
     XMMRegister value(ToDoubleRegister(instr->value()));
     __ cvtsd2ss(value, value);
     __ movss(operand, value);
-  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) {
+  } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS ||
+             elements_kind == FLOAT64_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:
+      case INT8_ELEMENTS:
+      case UINT8_ELEMENTS:
+      case UINT8_CLAMPED_ELEMENTS:
         __ movb(operand, value);
         break;
       case EXTERNAL_SHORT_ELEMENTS:
       case EXTERNAL_UNSIGNED_SHORT_ELEMENTS:
+      case INT16_ELEMENTS:
+      case UINT16_ELEMENTS:
         __ movw(operand, value);
         break;
       case EXTERNAL_INT_ELEMENTS:
       case EXTERNAL_UNSIGNED_INT_ELEMENTS:
+      case INT32_ELEMENTS:
+      case UINT32_ELEMENTS:
         __ movl(operand, value);
         break;
       case EXTERNAL_FLOAT_ELEMENTS:
       case EXTERNAL_DOUBLE_ELEMENTS:
+      case FLOAT32_ELEMENTS:
+      case FLOAT64_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;
@@ skipping 111 matching lines @@
                    key_reg,
                    value,
                    kSaveFPRegs,
                    EMIT_REMEMBERED_SET,
                    check_needed);
   }
 }
 
 
 void LCodeGen::DoStoreKeyed(LStoreKeyed* instr) {
-  if (instr->is_external()) {
+  if (instr->is_external() || instr->is_fixed_typed_array()) {
     DoStoreKeyedExternalArray(instr);
   } else if (instr->hydrogen()->value()->representation().IsDouble()) {
     DoStoreKeyedFixedDoubleArray(instr);
   } else {
     DoStoreKeyedFixedArray(instr);
   }
 }
 
 
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
@@ skipping 1305 matching lines @@
                                FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64