[runtime] First step to sanitize regexp literal creation.

src/ppc/macro-assembler-ppc.cc

 // Copyright 2014 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 <assert.h>  // For assert
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/base/bits.h"
@@ skipping 2736 matching lines @@
 
 
 void MacroAssembler::AllocateHeapNumberWithValue(
     Register result, DoubleRegister value, Register scratch1, Register scratch2,
     Register heap_number_map, Label* gc_required) {
   AllocateHeapNumber(result, scratch1, scratch2, heap_number_map, gc_required);
   stfd(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) {
-  // At least one bit set in the first 15 registers.
-  DCHECK((temps & ((1 << 15) - 1)) != 0);
-  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 < 15; i++) {
-    if ((temps & (1 << i)) != 0) {
-      tmp.set_code(i);
-      break;
-    }
-  }
-  DCHECK(!tmp.is(no_reg));
-
-  for (int i = 0; i < field_count; i++) {
-    LoadP(tmp, FieldMemOperand(src, i * kPointerSize), r0);
-    StoreP(tmp, FieldMemOperand(dst, i * kPointerSize), r0);
-  }
-}
-
-
 void MacroAssembler::CopyBytes(Register src, Register dst, Register length,
                                Register scratch) {
   Label align_loop, aligned, word_loop, byte_loop, byte_loop_1, done;
 
   DCHECK(!scratch.is(r0));
 
   cmpi(length, Operand::Zero());
   beq(&done);
 
   // Check src alignment and length to see whether word_loop is possible
@@ skipping 1635 matching lines @@
   }
   if (mag.shift > 0) srawi(result, result, mag.shift);
   ExtractBit(r0, dividend, 31);
   add(result, result, r0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC