Uses an object pool on x64

runtime/vm/instructions_arm.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_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/constants_arm.h"
 #include "vm/cpu.h"
 #include "vm/instructions.h"
@@ skipping 145 matching lines @@
   uword movt_ip = 0xe340c000 | ((target_hi >> 12) << 16) | (target_hi & 0xfff);
   uword blx_ip = 0xe12fff3c;
   *reinterpret_cast<uword*>(pc + (0 * Instr::kInstrSize)) = movw_ip;
   *reinterpret_cast<uword*>(pc + (1 * Instr::kInstrSize)) = movt_ip;
   *reinterpret_cast<uword*>(pc + (2 * Instr::kInstrSize)) = blx_ip;
   ASSERT(kFixedLengthInBytes == 3 * Instr::kInstrSize);
   CPU::FlushICache(pc, kFixedLengthInBytes);
 }
 
 
-JumpPattern::JumpPattern(uword pc) : pc_(pc) { }
+JumpPattern::JumpPattern(uword pc, const Code& code) : pc_(pc) { }
 
 
 bool JumpPattern::IsValid() const {
   Instr* movw_ip = Instr::At(pc_ + (0 * Instr::kInstrSize));  // target_lo
   Instr* movt_ip = Instr::At(pc_ + (1 * Instr::kInstrSize));  // target_hi
   Instr* bx_ip = Instr::At(pc_ + (2 * Instr::kInstrSize));
   return (movw_ip->InstructionBits() & 0xfff0f000) == 0xe300c000 &&
          (movt_ip->InstructionBits() & 0xfff0f000) == 0xe340c000 &&
          (bx_ip->InstructionBits() & 0xffffffff) == 0xe12fff1c;
 }
@@ skipping 15 matching lines @@
   uword movt_ip = 0xe340c000 | ((target_hi >> 12) << 16) | (target_hi & 0xfff);
   *reinterpret_cast<uword*>(pc_ + (0 * Instr::kInstrSize)) = movw_ip;
   *reinterpret_cast<uword*>(pc_ + (1 * Instr::kInstrSize)) = movt_ip;
   CPU::FlushICache(pc_, 2 * Instr::kInstrSize);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM