Replace our home-grown BitCast with bit_cast from Chrome/Google3.

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
@@ skipping 4424 matching lines @@
               save_fp,
               remembered_set_action,
               OMIT_SMI_CHECK,
               pointers_to_here_check_for_value);
 
   Bind(&done);
 
   // Clobber clobbered input registers when running with the debug-code flag
   // turned on to provoke errors.
   if (emit_debug_code()) {
-    Mov(value, Operand(BitCast<int64_t>(kZapValue + 4)));
-    Mov(scratch, Operand(BitCast<int64_t>(kZapValue + 8)));
+    Mov(value, Operand(bit_cast<int64_t>(kZapValue + 4)));
+    Mov(scratch, Operand(bit_cast<int64_t>(kZapValue + 8)));
   }
 }
 
 
 // Will clobber: object, map, dst.
 // If lr_status is kLRHasBeenSaved, lr will also be clobbered.
 void MacroAssembler::RecordWriteForMap(Register object,
                                        Register map,
                                        Register dst,
                                        LinkRegisterStatus lr_status,
@@ skipping 50 matching lines @@
   Bind(&done);
 
   // Count number of write barriers in generated code.
   isolate()->counters()->write_barriers_static()->Increment();
   IncrementCounter(isolate()->counters()->write_barriers_dynamic(), 1, map,
                    dst);
 
   // Clobber clobbered registers when running with the debug-code flag
   // turned on to provoke errors.
   if (emit_debug_code()) {
-    Mov(dst, Operand(BitCast<int64_t>(kZapValue + 12)));
-    Mov(map, Operand(BitCast<int64_t>(kZapValue + 16)));
+    Mov(dst, Operand(bit_cast<int64_t>(kZapValue + 12)));
+    Mov(map, Operand(bit_cast<int64_t>(kZapValue + 16)));
   }
 }
 
 
 // Will clobber: object, address, value.
 // If lr_status is kLRHasBeenSaved, lr will also be clobbered.
 //
 // The register 'object' contains a heap object pointer. The heap object tag is
 // shifted away.
 void MacroAssembler::RecordWrite(
@@ skipping 51 matching lines @@
   Bind(&done);
 
   // Count number of write barriers in generated code.
   isolate()->counters()->write_barriers_static()->Increment();
   IncrementCounter(isolate()->counters()->write_barriers_dynamic(), 1, address,
                    value);
 
   // Clobber clobbered registers when running with the debug-code flag
   // turned on to provoke errors.
   if (emit_debug_code()) {
-    Mov(address, Operand(BitCast<int64_t>(kZapValue + 12)));
-    Mov(value, Operand(BitCast<int64_t>(kZapValue + 16)));
+    Mov(address, Operand(bit_cast<int64_t>(kZapValue + 12)));
+    Mov(value, Operand(bit_cast<int64_t>(kZapValue + 16)));
   }
 }
 
 
 void MacroAssembler::AssertHasValidColor(const Register& reg) {
   if (emit_debug_code()) {
     // The bit sequence is backward. The first character in the string
     // represents the least significant bit.
     DCHECK(strcmp(Marking::kImpossibleBitPattern, "01") == 0);
 
@@ skipping 826 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64