Introduce MoveInteger64 instruction into X64 Macro Assembler

src/x64/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 195 matching lines @@
   }
 
   Label valid_result;
   Label return_result;
   // If Invalid Operand or Zero Division exceptions are set,
   // return NaN.
   __ testb(rax, Immediate(5));
   __ j(zero, &valid_result);
   __ fstp(0);  // Drop result in st(0).
   int64_t kNaNValue = V8_INT64_C(0x7ff8000000000000);
-  __ movq(rcx, kNaNValue);
+  __ MoveInteger64(rcx, kNaNValue);
   __ movq(Operand(rsp, kPointerSize), rcx);
   __ movsd(xmm0, Operand(rsp, kPointerSize));
   __ jmp(&return_result);
 
   // If result is valid, return that.
   __ bind(&valid_result);
   __ fstp_d(Operand(rsp, kPointerSize));
   __ movsd(xmm0, Operand(rsp, kPointerSize));
 
   // Clean up FPU stack and exceptions and return xmm0
@@ skipping 104 matching lines @@
                       kDontSaveFPRegs,
                       EMIT_REMEMBERED_SET,
                       OMIT_SMI_CHECK);
 
   // Convert smis to doubles and holes to hole NaNs.  The Array's length
   // remains unchanged.
   STATIC_ASSERT(FixedDoubleArray::kLengthOffset == FixedArray::kLengthOffset);
   STATIC_ASSERT(FixedDoubleArray::kHeaderSize == FixedArray::kHeaderSize);
 
   Label loop, entry, convert_hole;
-  __ movq(r15, BitCast<int64_t, uint64_t>(kHoleNanInt64));
+  __ MoveInteger64(r15, BitCast<int64_t, uint64_t>(kHoleNanInt64));
   // r15: the-hole NaN
   __ jmp(&entry);
 
   // Allocate new backing store.
   __ bind(&new_backing_store);
   __ lea(rdi, Operand(r9, times_8, FixedArray::kHeaderSize));
   __ Allocate(rdi, r14, r11, r15, fail, TAG_OBJECT);
   // Set backing store's map
   __ LoadRoot(rdi, Heap::kFixedDoubleArrayMapRootIndex);
   __ movq(FieldOperand(r14, HeapObject::kMapOffset), rdi);
@@ skipping 81 matching lines @@
   // r9 : number of elements
   __ lea(rdi, Operand(r9, times_pointer_size, FixedArray::kHeaderSize));
   __ Allocate(rdi, r11, r14, r15, &gc_required, TAG_OBJECT);
   // r11: destination FixedArray
   __ LoadRoot(rdi, Heap::kFixedArrayMapRootIndex);
   __ movq(FieldOperand(r11, HeapObject::kMapOffset), rdi);
   __ Integer32ToSmi(r14, r9);
   __ movq(FieldOperand(r11, FixedArray::kLengthOffset), r14);
 
   // Prepare for conversion loop.
-  __ movq(rsi, BitCast<int64_t, uint64_t>(kHoleNanInt64));
+  __ MoveInteger64(rsi, BitCast<int64_t, uint64_t>(kHoleNanInt64));
   __ LoadRoot(rdi, Heap::kTheHoleValueRootIndex);
   // rsi: the-hole NaN
   // rdi: pointer to the-hole
   __ jmp(&entry);
 
   // Call into runtime if GC is required.
   __ bind(&gc_required);
   __ pop(rax);
   __ movq(rsi, Operand(rbp, StandardFrameConstants::kContextOffset));
   __ jmp(fail);
@@ skipping 300 matching lines @@
     // argument_count_reg_ * times_pointer_size + (receiver - 1) * kPointerSize.
     return Operand(base_reg_, argument_count_reg_, times_pointer_size,
         displacement_to_last_argument + (receiver - 1 - index) * kPointerSize);
   }
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64