Adds intrinsics for Float64Array [] and []=.

runtime/vm/intermediate_language_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 1009 matching lines @@
       (representation() == kUnboxedInt32x4)   ||
       (representation() == kUnboxedFloat64x2)) {
     locs->set_out(0, Location::RequiresFpuRegister());
   } else {
     locs->set_out(0, Location::RequiresRegister());
   }
   return locs;
 }
 
 
-static Address ElementAddressForIntIndex(bool is_external,
-                                         intptr_t cid,
-                                         intptr_t index_scale,
-                                         Register array,
-                                         intptr_t index) {
-  const int64_t offset = index * index_scale +
-      (is_external ? 0 : (Instance::DataOffsetFor(cid) - kHeapObjectTag));
-  ASSERT(Utils::IsInt(32, offset));
-  const OperandSize size = Address::OperandSizeFor(cid);
-  ASSERT(Address::CanHoldOffset(offset, Address::Offset, size));
-  return Address(array, static_cast<int32_t>(offset), Address::Offset, size);
-}
-
-
-static Address ElementAddressForRegIndex(Assembler* assembler,
-                                         bool is_load,
-                                         bool is_external,
-                                         intptr_t cid,
-                                         intptr_t index_scale,
-                                         Register array,
-                                         Register index) {
-  // Note that index is expected smi-tagged, (i.e, LSL 1) for all arrays.
-  const intptr_t shift = Utils::ShiftForPowerOfTwo(index_scale) - kSmiTagShift;
-  const int32_t offset =
-      is_external ? 0 : (Instance::DataOffsetFor(cid) - kHeapObjectTag);
-  ASSERT(array != TMP);
-  ASSERT(index != TMP);
-  const Register base = is_load ? TMP : index;
-  if ((offset == 0) && (shift == 0)) {
-    return Address(array, index, UXTX, Address::Unscaled);
-  } else if (shift < 0) {
-    ASSERT(shift == -1);
-    assembler->add(base, array, Operand(index, ASR, 1));
-  } else {
-    assembler->add(base, array, Operand(index, LSL, shift));
-  }
-  const OperandSize size = Address::OperandSizeFor(cid);
-  ASSERT(Address::CanHoldOffset(offset, Address::Offset, size));
-  return Address(base, offset, Address::Offset, size);
-}
-
-
 void LoadIndexedInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   // The array register points to the backing store for external arrays.
   const Register array = locs()->in(0).reg();
   const Location index = locs()->in(1);
 
   Address element_address = index.IsRegister()
-      ? ElementAddressForRegIndex(compiler->assembler(),
-                                  true,  // Load.
-                                  IsExternal(), class_id(), index_scale(),
-                                  array, index.reg())
-      : ElementAddressForIntIndex(IsExternal(), class_id(), index_scale(),
-                                  array, Smi::Cast(index.constant()).Value());
+      ? __ ElementAddressForRegIndex(true,  // Load.
+                                     IsExternal(), class_id(), index_scale(),
+                                     array, index.reg())
+      : __ ElementAddressForIntIndex(
+            IsExternal(), class_id(), index_scale(),
+            array, Smi::Cast(index.constant()).Value());
   // Warning: element_address may use register TMP as base.
 
   if ((representation() == kUnboxedDouble)    ||
       (representation() == kUnboxedFloat32x4) ||
       (representation() == kUnboxedInt32x4)   ||
       (representation() == kUnboxedFloat64x2)) {
     const VRegister result = locs()->out(0).fpu_reg();
     switch (class_id()) {
       case kTypedDataFloat32ArrayCid:
         // Load single precision float.
@@ skipping 136 matching lines @@
   return locs;
 }
 
 
 void StoreIndexedInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   // The array register points to the backing store for external arrays.
   const Register array = locs()->in(0).reg();
   const Location index = locs()->in(1);
 
   Address element_address = index.IsRegister()
-      ? ElementAddressForRegIndex(compiler->assembler(),
-                                  false,  // Store.
-                                  IsExternal(), class_id(), index_scale(),
-                                  array, index.reg())
-      : ElementAddressForIntIndex(IsExternal(), class_id(), index_scale(),
-                                  array, Smi::Cast(index.constant()).Value());
+      ? __ ElementAddressForRegIndex(false,  // Store.
+                                     IsExternal(), class_id(), index_scale(),
+                                     array, index.reg())
+      : __ ElementAddressForIntIndex(
+            IsExternal(), class_id(), index_scale(),
+            array, Smi::Cast(index.constant()).Value());
 
   switch (class_id()) {
     case kArrayCid:
       if (ShouldEmitStoreBarrier()) {
         const Register value = locs()->in(2).reg();
         __ StoreIntoObject(array, element_address, value);
       } else if (locs()->in(2).IsConstant()) {
         const Object& constant = locs()->in(2).constant();
         __ StoreIntoObjectNoBarrier(array, element_address, constant);
       } else {
@@ skipping 4260 matching lines @@
   compiler->GenerateCall(token_pos(), &label, stub_kind_, locs());
 #if defined(DEBUG)
   __ LoadImmediate(R4, kInvalidObjectPointer, kNoPP);
   __ LoadImmediate(R5, kInvalidObjectPointer, kNoPP);
 #endif
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64