[runtime] First step to sanitize regexp literal creation.

src/mips64/macro-assembler-mips64.cc

 // Copyright 2012 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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
@@ skipping 3800 matching lines @@
                                                  FPURegister value,
                                                  Register scratch1,
                                                  Register scratch2,
                                                  Label* gc_required) {
   LoadRoot(t8, Heap::kHeapNumberMapRootIndex);
   AllocateHeapNumber(result, scratch1, scratch2, t8, gc_required);
   sdc1(value, FieldMemOperand(result, HeapNumber::kValueOffset));
 }
 
 
-// Copies a fixed number of fields of heap objects from src to dst.
-void MacroAssembler::CopyFields(Register dst,
-                                Register src,
-                                RegList temps,
-                                int field_count) {
-  DCHECK((temps & dst.bit()) == 0);
-  DCHECK((temps & src.bit()) == 0);
-  // Primitive implementation using only one temporary register.
-
-  Register tmp = no_reg;
-  // Find a temp register in temps list.
-  for (int i = 0; i < kNumRegisters; i++) {
-    if ((temps & (1 << i)) != 0) {
-      tmp.reg_code = i;
-      break;
-    }
-  }
-  DCHECK(!tmp.is(no_reg));
-
-  for (int i = 0; i < field_count; i++) {
-    ld(tmp, FieldMemOperand(src, i * kPointerSize));
-    sd(tmp, FieldMemOperand(dst, i * kPointerSize));
-  }
-}
-
-
 void MacroAssembler::CopyBytes(Register src,
                                Register dst,
                                Register length,
                                Register scratch) {
   Label align_loop_1, word_loop, byte_loop, byte_loop_1, done;
 
   // Align src before copying in word size chunks.
   Branch(&byte_loop, le, length, Operand(kPointerSize));
   bind(&align_loop_1);
   And(scratch, src, kPointerSize - 1);
@@ skipping 2407 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64