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@@ -28,12 +28,15 @@
  #include "asm/assembler.hpp"
  #include "code/vmreg.inline.hpp"
  #include "compiler/oopMap.hpp"
  #include "utilities/macros.hpp"
  #include "runtime/rtmLocking.hpp"
+ #include "runtime/signature.hpp"
  #include "runtime/vm_version.hpp"
+ class ciInlineKlass;
  // MacroAssembler extends Assembler by frequently used macros.
  // Instructions for which a 'better' code sequence exists depending
  // on arguments should also go in here.

@@ -99,10 +102,41 @@
    void null_check(Register reg, int offset = -1);
    static bool needs_explicit_null_check(intptr_t offset);
    static bool uses_implicit_null_check(void* address);
+   // markWord tests, kills markWord reg
+   void test_markword_is_inline_type(Register markword, Label& is_inline_type);
+   // inlineKlass queries, kills temp_reg
+   void test_klass_is_inline_type(Register klass, Register temp_reg, Label& is_inline_type);
+   void test_klass_is_empty_inline_type(Register klass, Register temp_reg, Label& is_empty_inline_type);
+   void test_oop_is_not_inline_type(Register object, Register tmp, Label& not_inline_type);
+   // Get the default value oop for the given InlineKlass
+   void get_default_value_oop(Register inline_klass, Register temp_reg, Register obj);
+   // The empty value oop, for the given InlineKlass ("empty" as in no instance fields)
+   // get_default_value_oop with extra assertion for empty inline klass
+   void get_empty_inline_type_oop(Register inline_klass, Register temp_reg, Register obj);
+   void test_field_is_null_free_inline_type(Register flags, Register temp_reg, Label& is_null_free);
+   void test_field_is_not_null_free_inline_type(Register flags, Register temp_reg, Label& not_null_free);
+   void test_field_is_inlined(Register flags, Register temp_reg, Label& is_inlined);
+   // Check oops for special arrays, i.e. flattened and/or null-free
+   void test_oop_prototype_bit(Register oop, Register temp_reg, int32_t test_bit, bool jmp_set, Label& jmp_label);
+   void test_flattened_array_oop(Register oop, Register temp_reg, Label&is_flattened_array);
+   void test_non_flattened_array_oop(Register oop, Register temp_reg, Label&is_non_flattened_array);
+   void test_null_free_array_oop(Register oop, Register temp_reg, Label&is_null_free_array);
+   void test_non_null_free_array_oop(Register oop, Register temp_reg, Label&is_non_null_free_array);
+   // Check array klass layout helper for flatten or null-free arrays...
+   void test_flattened_array_layout(Register lh, Label& is_flattened_array);
+   void test_non_flattened_array_layout(Register lh, Label& is_non_flattened_array);
+   void test_null_free_array_layout(Register lh, Label& is_null_free_array);
+   void test_non_null_free_array_layout(Register lh, Label& is_non_null_free_array);
    // Required platform-specific helpers for Label::patch_instructions.
    // They _shadow_ the declarations in AbstractAssembler, which are undefined.
    void pd_patch_instruction(address branch, address target, const char* file, int line) {
      unsigned char op = branch[0];
      assert(op == 0xE8 /* call */ ||

@@ -337,29 +371,42 @@
    void load_method_holder_cld(Register rresult, Register rmethod);
    void load_method_holder(Register holder, Register method);
    // oop manipulations
+   void load_metadata(Register dst, Register src);
    void load_klass(Register dst, Register src, Register tmp);
    void store_klass(Register dst, Register src, Register tmp);
    void access_load_at(BasicType type, DecoratorSet decorators, Register dst, Address src,
                        Register tmp1, Register thread_tmp);
    void access_store_at(BasicType type, DecoratorSet decorators, Address dst, Register src,
-                        Register tmp1, Register tmp2);
+                        Register tmp1, Register tmp2, Register tmp3 = noreg);
+   void access_value_copy(DecoratorSet decorators, Register src, Register dst, Register inline_klass);
+   // inline type data payload offsets...
+   void first_field_offset(Register inline_klass, Register offset);
+   void data_for_oop(Register oop, Register data, Register inline_klass);
+   // get data payload ptr a flat value array at index, kills rcx and index
+   void data_for_value_array_index(Register array, Register array_klass,
+                                   Register index, Register data);
    void load_heap_oop(Register dst, Address src, Register tmp1 = noreg,
                       Register thread_tmp = noreg, DecoratorSet decorators = 0);
    void load_heap_oop_not_null(Register dst, Address src, Register tmp1 = noreg,
                                Register thread_tmp = noreg, DecoratorSet decorators = 0);
    void store_heap_oop(Address dst, Register src, Register tmp1 = noreg,
-                       Register tmp2 = noreg, DecoratorSet decorators = 0);
+                       Register tmp2 = noreg, Register tmp3 = noreg, DecoratorSet decorators = 0);
    // Used for storing NULL. All other oop constants should be
    // stored using routines that take a jobject.
    void store_heap_oop_null(Address dst);
+   void load_prototype_header(Register dst, Register src, Register tmp);
  #ifdef _LP64
    void store_klass_gap(Register dst, Register src);
    // This dummy is to prevent a call to store_heap_oop from
    // converting a zero (like NULL) into a Register by giving

@@ -524,10 +571,19 @@
    // Callee saved registers handling
    void push_callee_saved_registers();
    void pop_callee_saved_registers();
    // allocation
+   // Object / value buffer allocation...
+   // Allocate instance of klass, assumes klass initialized by caller
+   // new_obj prefers to be rax
+   // Kills t1 and t2, perserves klass, return allocation in new_obj (rsi on LP64)
+   void allocate_instance(Register klass, Register new_obj,
+                          Register t1, Register t2,
+                          bool clear_fields, Label& alloc_failed);
    void eden_allocate(
      Register thread,                   // Current thread
      Register obj,                      // result: pointer to object after successful allocation
      Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
      int      con_size_in_bytes,        // object size in bytes if   known at compile time

@@ -543,10 +599,13 @@
      Register t2,                       // temp register
      Label&   slow_case                 // continuation point if fast allocation fails
    void zero_memory(Register address, Register length_in_bytes, int offset_in_bytes, Register temp);
+   // For field "index" within "klass", return inline_klass ...
+   void get_inline_type_field_klass(Register klass, Register index, Register inline_klass);
    // interface method calling
    void lookup_interface_method(Register recv_klass,
                                 Register intf_klass,
                                 RegisterOrConstant itable_index,
                                 Register method_result,

@@ -693,11 +752,12 @@
      if (src.is_constant()) addptr(dst, (int) src.as_constant());
      else                   addptr(dst,       src.as_register());
    void andptr(Register dst, int32_t src);
-   void andptr(Register src1, Register src2) { LP64_ONLY(andq(src1, src2)) NOT_LP64(andl(src1, src2)) ; }
+   void andptr(Register dst, Register src) { LP64_ONLY(andq(dst, src)) NOT_LP64(andl(dst, src)) ; }
+   void andptr(Register dst, Address src) { LP64_ONLY(andq(dst, src)) NOT_LP64(andl(dst, src)) ; }
    void cmp8(AddressLiteral src1, int imm);
    // renamed to drag out the casting of address to int32_t/intptr_t
    void cmp32(Register src1, int32_t imm);

@@ -1705,15 +1765,30 @@
    void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); }
    // C2 compiled method's prolog code.
-   void verified_entry(int framesize, int stack_bang_size, bool fp_mode_24b, bool is_stub);
+   void verified_entry(Compile* C, int sp_inc = 0);
+   // Inline type specific methods
+   #include "asm/macroAssembler_common.hpp"
+   int store_inline_type_fields_to_buf(ciInlineKlass* vk, bool from_interpreter = true);
+   bool move_helper(VMReg from, VMReg to, BasicType bt, RegState reg_state[]);
+   bool unpack_inline_helper(const GrowableArray<SigEntry>* sig, int& sig_index,
+                             VMReg from, int& from_index, VMRegPair* to, int to_count, int& to_index,
+                             RegState reg_state[]);
+   bool pack_inline_helper(const GrowableArray<SigEntry>* sig, int& sig_index, int vtarg_index,
+                           VMRegPair* from, int from_count, int& from_index, VMReg to,
+                           RegState reg_state[], Register val_array);
+   int extend_stack_for_inline_args(int args_on_stack);
+   void remove_frame(int initial_framesize, bool needs_stack_repair);
+   VMReg spill_reg_for(VMReg reg);
    // clear memory of size 'cnt' qwords, starting at 'base';
    // if 'is_large' is set, do not try to produce short loop
-   void clear_mem(Register base, Register cnt, Register rtmp, XMMRegister xtmp, bool is_large, KRegister mask=knoreg);
+   void clear_mem(Register base, Register cnt, Register val, XMMRegister xtmp, bool is_large, bool word_copy_only, KRegister mask=knoreg);
    // clear memory initialization sequence for constant size;
    void clear_mem(Register base, int cnt, Register rtmp, XMMRegister xtmp, KRegister mask=knoreg);
    // clear memory of size 'cnt' qwords, starting at 'base' using XMM/YMM registers
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