src/hotspot/cpu/arm/c1_CodeStubs_arm.cpp

*** 65,77 ****
  
  void RangeCheckStub::emit_code(LIR_Assembler* ce) {
    __ bind(_entry);
  
    if (_info->deoptimize_on_exception()) {
- #ifdef AARCH64
-     __ NOT_TESTED();
- #endif
      __ call(Runtime1::entry_for(Runtime1::predicate_failed_trap_id), relocInfo::runtime_call_type);
      ce->add_call_info_here(_info);
      ce->verify_oop_map(_info);
      debug_only(__ should_not_reach_here());
      return;
--- 65,74 ----
*** 84,96 ****
      __ mov_slow(Rtemp, _index->as_jint()); // Rtemp should be OK in C1
      __ str_32(Rtemp, Address(SP));
    }
  
    if (_throw_index_out_of_bounds_exception) {
- #ifdef AARCH64
-     __ NOT_TESTED();
- #endif
      __ call(Runtime1::entry_for(Runtime1::throw_index_exception_id), relocInfo::runtime_call_type);
    } else {
      __ str(_array->as_pointer_register(), Address(SP, BytesPerWord)); // ??? Correct offset? Correct instruction?
      __ call(Runtime1::entry_for(Runtime1::throw_range_check_failed_id), relocInfo::runtime_call_type);
    }
--- 81,90 ----
*** 206,225 ****
    __ bind(_entry);
    const Register obj_reg = _obj_reg->as_pointer_register();
    const Register lock_reg = _lock_reg->as_pointer_register();
  
    ce->verify_reserved_argument_area_size(2);
- #ifdef AARCH64
-   __ stp(obj_reg, lock_reg, Address(SP));
- #else
    if (obj_reg < lock_reg) {
      __ stmia(SP, RegisterSet(obj_reg) | RegisterSet(lock_reg));
    } else {
      __ str(obj_reg, Address(SP));
      __ str(lock_reg, Address(SP, BytesPerWord));
    }
- #endif // AARCH64
  
    Runtime1::StubID enter_id = ce->compilation()->has_fpu_code() ?
                                Runtime1::monitorenter_id :
                                Runtime1::monitorenter_nofpu_id;
    __ call(Runtime1::entry_for(enter_id), relocInfo::runtime_call_type);
--- 200,215 ----
*** 257,299 ****
      ShouldNotReachHere();
  #endif
  }
  
  void PatchingStub::emit_code(LIR_Assembler* ce) {
!   const int patchable_instruction_offset = AARCH64_ONLY(NativeInstruction::instruction_size) NOT_AARCH64(0);
  
    assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF,
           "not enough room for call");
    assert((_bytes_to_copy & 3) == 0, "must copy a multiple of four bytes");
    Label call_patch;
    bool is_load = (_id == load_klass_id) || (_id == load_mirror_id) || (_id == load_appendix_id);
  
- #ifdef AARCH64
-   assert(nativeInstruction_at(_pc_start)->is_nop(), "required for MT safe patching");
  
!   // Same alignment of reg2mem code and PatchingStub code. Required to make copied bind_literal() code properly aligned.
!   __ align(wordSize);
! #endif // AARCH64
! 
!   if (is_load NOT_AARCH64(&& !VM_Version::supports_movw())) {
      address start = __ pc();
  
      // The following sequence duplicates code provided in MacroAssembler::patchable_mov_oop()
      // without creating relocation info entry.
- #ifdef AARCH64
-     // Extra nop for MT safe patching
-     __ nop();
- #endif // AARCH64
  
      assert((__ pc() - start) == patchable_instruction_offset, "should be");
- #ifdef AARCH64
-     __ ldr(_obj, __ pc());
- #else
      __ ldr(_obj, Address(PC));
      // Extra nop to handle case of large offset of oop placeholder (see NativeMovConstReg::set_data).
      __ nop();
- #endif // AARCH64
  
  #ifdef ASSERT
      for (int i = 0; i < _bytes_to_copy; i++) {
        assert(((address)_pc_start)[i] == start[i], "should be the same code");
      }
--- 247,275 ----
      ShouldNotReachHere();
  #endif
  }
  
  void PatchingStub::emit_code(LIR_Assembler* ce) {
!   const int patchable_instruction_offset = 0;
  
    assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF,
           "not enough room for call");
    assert((_bytes_to_copy & 3) == 0, "must copy a multiple of four bytes");
    Label call_patch;
    bool is_load = (_id == load_klass_id) || (_id == load_mirror_id) || (_id == load_appendix_id);
  
  
!   if (is_load && !VM_Version::supports_movw()) {
      address start = __ pc();
  
      // The following sequence duplicates code provided in MacroAssembler::patchable_mov_oop()
      // without creating relocation info entry.
  
      assert((__ pc() - start) == patchable_instruction_offset, "should be");
      __ ldr(_obj, Address(PC));
      // Extra nop to handle case of large offset of oop placeholder (see NativeMovConstReg::set_data).
      __ nop();
  
  #ifdef ASSERT
      for (int i = 0; i < _bytes_to_copy; i++) {
        assert(((address)_pc_start)[i] == start[i], "should be the same code");
      }