Adds intrinsics for Float64Array [] and []=.

runtime/vm/intrinsifier_x64.cc

 // Copyright (c) 2013, 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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 418 matching lines @@
 
   __ movq(RAX, FieldAddress(RAX, ExternalTypedData::data_offset()));
   __ SmiUntag(RCX);
   __ movzxb(RAX, Address(RAX, RCX, TIMES_1, 0));
   __ SmiTag(RAX);
   __ ret();
   __ Bind(&fall_through);
 }
 
 
+void Intrinsifier::Float64Array_getIndexed(Assembler* assembler) {
+  Label fall_through;
+  __ movq(RCX, Address(RSP, + 1 * kWordSize));  // Index.
+  __ movq(RAX, Address(RSP, + 2 * kWordSize));  // Array.
+  __ testq(RCX, Immediate(kSmiTagMask));
+  __ j(NOT_ZERO, &fall_through, Assembler::kNearJump);  // Non-smi index.
+  // Range check.
+  __ cmpq(RCX, FieldAddress(RAX, TypedData::length_offset()));
+  // Runtime throws exception.
+  __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
+
+  Address element_address =
+      Assembler::ElementAddressForRegIndex(false,  // Not external.
+                                           kTypedDataFloat64ArrayCid,
+                                           8,  // Index scale.
+                                           RAX,  // Array.
+                                           RCX);  // Index.
+
+  __ movsd(XMM0, element_address);
+
+  const Class& double_class = Class::Handle(
+      Isolate::Current()->object_store()->double_class());
+  __ TryAllocate(double_class,
+                 &fall_through,
+                 Assembler::kNearJump,
+                 RAX,  // Result register.
+                 kNoRegister);
+  __ movsd(FieldAddress(RAX, Double::value_offset()), XMM0);
+  __ ret();
+  __ Bind(&fall_through);
+}
+
+
+void Intrinsifier::Float64Array_setIndexed(Assembler* assembler) {
+  Label fall_through;
+  __ movq(RCX, Address(RSP, + 2 * kWordSize));  // Index.
+  __ movq(RAX, Address(RSP, + 3 * kWordSize));  // Array.
+  __ testq(RCX, Immediate(kSmiTagMask));
+  __ j(NOT_ZERO, &fall_through, Assembler::kNearJump);  // Non-smi index.
+  // Range check.
+  __ cmpq(RCX, FieldAddress(RAX, TypedData::length_offset()));
+  // Runtime throws exception.
+  __ j(ABOVE_EQUAL, &fall_through, Assembler::kNearJump);
+
+  __ movq(RDX, Address(RSP, + 1 * kWordSize));  // Value
+  __ testq(RDX, Immediate(kSmiTagMask));
+  __ j(ZERO, &fall_through, Assembler::kNearJump);  // Value is Smi.
+
+  __ LoadClassId(RDI, RDX);
+  __ cmpq(RDI, Immediate(kTypedDataFloat64ArrayCid));
+  __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump);
+
+  __ movsd(XMM0, FieldAddress(RDX, Double::value_offset()));
+
+  Address element_address =
+      Assembler::ElementAddressForRegIndex(false,  // Not external.
+                                           kTypedDataFloat64ArrayCid,
+                                           8,  // Index scale.
+                                           RAX,  // Array.
+                                           RCX);  // Index.
+
+  __ movsd(element_address, XMM0);
+  __ ret();
+  __ Bind(&fall_through);
+}
+
+
 static ScaleFactor GetScaleFactor(intptr_t size) {
   switch (size) {
     case 1: return TIMES_1;
     case 2: return TIMES_2;
     case 4: return TIMES_4;
     case 8: return TIMES_8;
     case 16: return TIMES_16;
   }
   UNREACHABLE();
   return static_cast<ScaleFactor>(0);
@@ skipping 1166 matching lines @@
   // Set return value to Isolate::current_tag_.
   __ movq(RAX, Address(RBX, Isolate::current_tag_offset()));
   __ ret();
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64