1 /*
   2  * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef CPU_X86_MACROASSEMBLER_X86_HPP
  26 #define CPU_X86_MACROASSEMBLER_X86_HPP
  27 
  28 #include "asm/assembler.hpp"
  29 #include "asm/register.hpp"
  30 #include "code/vmreg.inline.hpp"
  31 #include "compiler/oopMap.hpp"
  32 #include "utilities/macros.hpp"
  33 #include "runtime/vm_version.hpp"
  34 #include "utilities/checkedCast.hpp"
  35 
  36 // MacroAssembler extends Assembler by frequently used macros.
  37 //
  38 // Instructions for which a 'better' code sequence exists depending
  39 // on arguments should also go in here.
  40 
  41 class MacroAssembler: public Assembler {
  42   friend class LIR_Assembler;
  43   friend class Runtime1;      // as_Address()
  44 
  45  public:
  46   // Support for VM calls
  47   //
  48   // This is the base routine called by the different versions of call_VM_leaf. The interpreter
  49   // may customize this version by overriding it for its purposes (e.g., to save/restore
  50   // additional registers when doing a VM call).
  51 
  52   virtual void call_VM_leaf_base(
  53     address entry_point,               // the entry point
  54     int     number_of_arguments        // the number of arguments to pop after the call
  55   );
  56 
  57  protected:
  58   // This is the base routine called by the different versions of call_VM. The interpreter
  59   // may customize this version by overriding it for its purposes (e.g., to save/restore
  60   // additional registers when doing a VM call).
  61   //
  62   // call_VM_base returns the register which contains the thread upon return.
  63   // If no last_java_sp is specified (noreg) than rsp will be used instead.
  64   virtual void call_VM_base(           // returns the register containing the thread upon return
  65     Register oop_result,               // where an oop-result ends up if any; use noreg otherwise
  66     Register last_java_sp,             // to set up last_Java_frame in stubs; use noreg otherwise
  67     address  entry_point,              // the entry point
  68     int      number_of_arguments,      // the number of arguments (w/o thread) to pop after the call
  69     bool     check_exceptions          // whether to check for pending exceptions after return
  70   );
  71 
  72   void call_VM_helper(Register oop_result, address entry_point, int number_of_arguments, bool check_exceptions = true);
  73 
  74  public:
  75   MacroAssembler(CodeBuffer* code) : Assembler(code) {}
  76 
  77  // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code.
  78  // The implementation is only non-empty for the InterpreterMacroAssembler,
  79  // as only the interpreter handles PopFrame and ForceEarlyReturn requests.
  80  virtual void check_and_handle_popframe();
  81  virtual void check_and_handle_earlyret();
  82 
  83   Address as_Address(AddressLiteral adr);
  84   Address as_Address(ArrayAddress adr, Register rscratch);
  85 
  86   // Support for null-checks
  87   //
  88   // Generates code that causes a null OS exception if the content of reg is null.
  89   // If the accessed location is M[reg + offset] and the offset is known, provide the
  90   // offset. No explicit code generation is needed if the offset is within a certain
  91   // range (0 <= offset <= page_size).
  92 
  93   void null_check(Register reg, int offset = -1);
  94   static bool needs_explicit_null_check(intptr_t offset);
  95   static bool uses_implicit_null_check(void* address);
  96 
  97   // Required platform-specific helpers for Label::patch_instructions.
  98   // They _shadow_ the declarations in AbstractAssembler, which are undefined.
  99   void pd_patch_instruction(address branch, address target, const char* file, int line) {
 100     unsigned char op = branch[0];
 101     assert(op == 0xE8 /* call */ ||
 102         op == 0xE9 /* jmp */ ||
 103         op == 0xEB /* short jmp */ ||
 104         (op & 0xF0) == 0x70 /* short jcc */ ||
 105         (op == 0x0F && (branch[1] & 0xF0) == 0x80) /* jcc */ ||
 106         (op == 0xC7 && branch[1] == 0xF8) /* xbegin */ ||
 107         (op == 0x8D) /* lea */,
 108         "Invalid opcode at patch point");
 109 
 110     if (op == 0xEB || (op & 0xF0) == 0x70) {
 111       // short offset operators (jmp and jcc)
 112       char* disp = (char*) &branch[1];
 113       int imm8 = checked_cast<int>(target - (address) &disp[1]);
 114       guarantee(this->is8bit(imm8), "Short forward jump exceeds 8-bit offset at %s:%d",
 115                 file == nullptr ? "<null>" : file, line);
 116       *disp = (char)imm8;
 117     } else {
 118       int* disp = (int*) &branch[(op == 0x0F || op == 0xC7 || op == 0x8D) ? 2 : 1];
 119       int imm32 = checked_cast<int>(target - (address) &disp[1]);
 120       *disp = imm32;
 121     }
 122   }
 123 
 124   // The following 4 methods return the offset of the appropriate move instruction
 125 
 126   // Support for fast byte/short loading with zero extension (depending on particular CPU)
 127   int load_unsigned_byte(Register dst, Address src);
 128   int load_unsigned_short(Register dst, Address src);
 129 
 130   // Support for fast byte/short loading with sign extension (depending on particular CPU)
 131   int load_signed_byte(Register dst, Address src);
 132   int load_signed_short(Register dst, Address src);
 133 
 134   // Support for sign-extension (hi:lo = extend_sign(lo))
 135   void extend_sign(Register hi, Register lo);
 136 
 137   // Load and store values by size and signed-ness
 138   void load_sized_value(Register dst, Address src, size_t size_in_bytes, bool is_signed, Register dst2 = noreg);
 139   void store_sized_value(Address dst, Register src, size_t size_in_bytes, Register src2 = noreg);
 140 
 141   // Support for inc/dec with optimal instruction selection depending on value
 142 
 143   void increment(Register reg, int value = 1) { incrementq(reg, value); }
 144   void decrement(Register reg, int value = 1) { decrementq(reg, value); }
 145   void increment(Address dst, int value = 1)  { incrementq(dst, value); }
 146   void decrement(Address dst, int value = 1)  { decrementq(dst, value); }
 147 
 148   void decrementl(Address dst, int value = 1);
 149   void decrementl(Register reg, int value = 1);
 150 
 151   void decrementq(Register reg, int value = 1);
 152   void decrementq(Address dst, int value = 1);
 153 
 154   void incrementl(Address dst, int value = 1);
 155   void incrementl(Register reg, int value = 1);
 156 
 157   void incrementq(Register reg, int value = 1);
 158   void incrementq(Address dst, int value = 1);
 159 
 160   void incrementl(AddressLiteral dst, Register rscratch = noreg);
 161   void incrementl(ArrayAddress   dst, Register rscratch);
 162 
 163   void incrementq(AddressLiteral dst, Register rscratch = noreg);
 164 
 165   void movhlf(XMMRegister dst, XMMRegister src, Register rscratch = noreg);
 166 
 167   // Support optimal SSE move instructions.
 168   void movflt(XMMRegister dst, XMMRegister src) {
 169     if (dst-> encoding() == src->encoding()) return;
 170     if (UseXmmRegToRegMoveAll) { movaps(dst, src); return; }
 171     else                       { movss (dst, src); return; }
 172   }
 173   void movflt(XMMRegister dst, Address src) { movss(dst, src); }
 174   void movflt(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
 175   void movflt(Address dst, XMMRegister src) { movss(dst, src); }
 176 
 177   // Move with zero extension
 178   void movfltz(XMMRegister dst, XMMRegister src) { movss(dst, src); }
 179 
 180   void movdbl(XMMRegister dst, XMMRegister src) {
 181     if (dst-> encoding() == src->encoding()) return;
 182     if (UseXmmRegToRegMoveAll) { movapd(dst, src); return; }
 183     else                       { movsd (dst, src); return; }
 184   }
 185 
 186   void movdbl(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
 187 
 188   void movdbl(XMMRegister dst, Address src) {
 189     if (UseXmmLoadAndClearUpper) { movsd (dst, src); return; }
 190     else                         { movlpd(dst, src); return; }
 191   }
 192   void movdbl(Address dst, XMMRegister src) { movsd(dst, src); }
 193 
 194   void flt_to_flt16(Register dst, XMMRegister src, XMMRegister tmp) {
 195     // Use separate tmp XMM register because caller may
 196     // requires src XMM register to be unchanged (as in x86.ad).
 197     vcvtps2ph(tmp, src, 0x04, Assembler::AVX_128bit);
 198     movdl(dst, tmp);
 199     movswl(dst, dst);
 200   }
 201 
 202   void flt16_to_flt(XMMRegister dst, Register src) {
 203     movdl(dst, src);
 204     vcvtph2ps(dst, dst, Assembler::AVX_128bit);
 205   }
 206 
 207   // Alignment
 208   void align32();
 209   void align64();
 210   void align(uint modulus);
 211   void align(uint modulus, uint target);
 212 
 213   void post_call_nop();
 214 
 215   // Stack frame creation/removal
 216   void enter();
 217   void leave();
 218 
 219   // Support for getting the JavaThread pointer (i.e.; a reference to thread-local information).
 220   // The pointer will be loaded into the thread register. This is a slow version that does native call.
 221   // Normally, JavaThread pointer is available in r15_thread, use that where possible.
 222   void get_thread_slow(Register thread);
 223 
 224   // Support for argument shuffling
 225 
 226   // bias in bytes
 227   void move32_64(VMRegPair src, VMRegPair dst, Register tmp = rax, int in_stk_bias = 0, int out_stk_bias = 0);
 228   void long_move(VMRegPair src, VMRegPair dst, Register tmp = rax, int in_stk_bias = 0, int out_stk_bias = 0);
 229   void float_move(VMRegPair src, VMRegPair dst, Register tmp = rax, int in_stk_bias = 0, int out_stk_bias = 0);
 230   void double_move(VMRegPair src, VMRegPair dst, Register tmp = rax, int in_stk_bias = 0, int out_stk_bias = 0);
 231   void move_ptr(VMRegPair src, VMRegPair dst);
 232   void object_move(OopMap* map,
 233                    int oop_handle_offset,
 234                    int framesize_in_slots,
 235                    VMRegPair src,
 236                    VMRegPair dst,
 237                    bool is_receiver,
 238                    int* receiver_offset);
 239 
 240   // Support for VM calls
 241   //
 242   // It is imperative that all calls into the VM are handled via the call_VM macros.
 243   // They make sure that the stack linkage is setup correctly. call_VM's correspond
 244   // to ENTRY/ENTRY_X entry points while call_VM_leaf's correspond to LEAF entry points.
 245 
 246 
 247   void call_VM(Register oop_result,
 248                address entry_point,
 249                bool check_exceptions = true);
 250   void call_VM(Register oop_result,
 251                address entry_point,
 252                Register arg_1,
 253                bool check_exceptions = true);
 254   void call_VM(Register oop_result,
 255                address entry_point,
 256                Register arg_1, Register arg_2,
 257                bool check_exceptions = true);
 258   void call_VM(Register oop_result,
 259                address entry_point,
 260                Register arg_1, Register arg_2, Register arg_3,
 261                bool check_exceptions = true);
 262 
 263   // Overloadings with last_Java_sp
 264   void call_VM(Register oop_result,
 265                Register last_java_sp,
 266                address entry_point,
 267                int number_of_arguments = 0,
 268                bool check_exceptions = true);
 269   void call_VM(Register oop_result,
 270                Register last_java_sp,
 271                address entry_point,
 272                Register arg_1, bool
 273                check_exceptions = true);
 274   void call_VM(Register oop_result,
 275                Register last_java_sp,
 276                address entry_point,
 277                Register arg_1, Register arg_2,
 278                bool check_exceptions = true);
 279   void call_VM(Register oop_result,
 280                Register last_java_sp,
 281                address entry_point,
 282                Register arg_1, Register arg_2, Register arg_3,
 283                bool check_exceptions = true);
 284 
 285   void get_vm_result_oop(Register oop_result);
 286   void get_vm_result_metadata(Register metadata_result);
 287 
 288   // These always tightly bind to MacroAssembler::call_VM_base
 289   // bypassing the virtual implementation
 290   void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, int number_of_arguments = 0, bool check_exceptions = true);
 291   void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, bool check_exceptions = true);
 292   void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true);
 293   void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, bool check_exceptions = true);
 294   void super_call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4, bool check_exceptions = true);
 295 
 296   void call_VM_leaf0(address entry_point);
 297   void call_VM_leaf(address entry_point,
 298                     int number_of_arguments = 0);
 299   void call_VM_leaf(address entry_point,
 300                     Register arg_1);
 301   void call_VM_leaf(address entry_point,
 302                     Register arg_1, Register arg_2);
 303   void call_VM_leaf(address entry_point,
 304                     Register arg_1, Register arg_2, Register arg_3);
 305 
 306   void call_VM_leaf(address entry_point,
 307                     Register arg_1, Register arg_2, Register arg_3, Register arg_4);
 308 
 309   // These always tightly bind to MacroAssembler::call_VM_leaf_base
 310   // bypassing the virtual implementation
 311   void super_call_VM_leaf(address entry_point);
 312   void super_call_VM_leaf(address entry_point, Register arg_1);
 313   void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
 314   void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3);
 315   void super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3, Register arg_4);
 316 
 317   void set_last_Java_frame(Register last_java_sp,
 318                            Register last_java_fp,
 319                            address  last_java_pc,
 320                            Register rscratch);
 321 
 322   void set_last_Java_frame(Register last_java_sp,
 323                            Register last_java_fp,
 324                            Label &last_java_pc,
 325                            Register scratch);
 326 
 327   void reset_last_Java_frame(bool clear_fp);
 328 
 329   // jobjects
 330   void clear_jobject_tag(Register possibly_non_local);
 331   void resolve_jobject(Register value, Register tmp);
 332   void resolve_global_jobject(Register value, Register tmp);
 333 
 334   // C 'boolean' to Java boolean: x == 0 ? 0 : 1
 335   void c2bool(Register x);
 336 
 337   // C++ bool manipulation
 338 
 339   void movbool(Register dst, Address src);
 340   void movbool(Address dst, bool boolconst);
 341   void movbool(Address dst, Register src);
 342   void testbool(Register dst);
 343 
 344   void resolve_oop_handle(Register result, Register tmp);
 345   void resolve_weak_handle(Register result, Register tmp);
 346   void load_mirror(Register mirror, Register method, Register tmp);
 347   void load_method_holder_cld(Register rresult, Register rmethod);
 348 
 349   void load_method_holder(Register holder, Register method);
 350 
 351   // oop manipulations
 352   void load_narrow_klass_compact(Register dst, Register src);
 353   void load_narrow_klass(Register dst, Register src);
 354   void load_klass(Register dst, Register src, Register tmp);
 355   void store_klass(Register dst, Register src, Register tmp);
 356 
 357   // Compares the narrow Klass pointer of an object to a given narrow Klass.
 358   void cmp_klass(Register klass, Register obj, Register tmp);
 359 
 360   // Compares the Klass pointer of two objects obj1 and obj2. Result is in the condition flags.
 361   // Uses tmp1 and tmp2 as temporary registers.
 362   void cmp_klasses_from_objects(Register obj1, Register obj2, Register tmp1, Register tmp2);
 363 
 364   void access_load_at(BasicType type, DecoratorSet decorators, Register dst, Address src,
 365                       Register tmp1);
 366   void access_store_at(BasicType type, DecoratorSet decorators, Address dst, Register val,
 367                        Register tmp1, Register tmp2, Register tmp3);
 368 
 369   void load_heap_oop(Register dst, Address src, Register tmp1 = noreg, DecoratorSet decorators = 0);
 370   void load_heap_oop_not_null(Register dst, Address src, Register tmp1 = noreg, DecoratorSet decorators = 0);
 371   void store_heap_oop(Address dst, Register val, Register tmp1 = noreg,
 372                       Register tmp2 = noreg, Register tmp3 = noreg, DecoratorSet decorators = 0);
 373 
 374   // Used for storing null. All other oop constants should be
 375   // stored using routines that take a jobject.
 376   void store_heap_oop_null(Address dst);
 377 
 378   void store_klass_gap(Register dst, Register src);
 379 
 380   // This dummy is to prevent a call to store_heap_oop from
 381   // converting a zero (like null) into a Register by giving
 382   // the compiler two choices it can't resolve
 383 
 384   void store_heap_oop(Address dst, void* dummy);
 385 
 386   void encode_heap_oop(Register r);
 387   void decode_heap_oop(Register r);
 388   void encode_heap_oop_not_null(Register r);
 389   void decode_heap_oop_not_null(Register r);
 390   void encode_heap_oop_not_null(Register dst, Register src);
 391   void decode_heap_oop_not_null(Register dst, Register src);
 392 
 393   void set_narrow_oop(Register dst, jobject obj);
 394   void set_narrow_oop(Address dst, jobject obj);
 395   void cmp_narrow_oop(Register dst, jobject obj);
 396   void cmp_narrow_oop(Address dst, jobject obj);
 397 
 398   void encode_klass_not_null(Register r, Register tmp);
 399   void decode_klass_not_null(Register r, Register tmp);
 400   void encode_and_move_klass_not_null(Register dst, Register src);
 401   void decode_and_move_klass_not_null(Register dst, Register src);
 402   void set_narrow_klass(Register dst, Klass* k);
 403   void set_narrow_klass(Address dst, Klass* k);
 404   void cmp_narrow_klass(Register dst, Klass* k);
 405   void cmp_narrow_klass(Address dst, Klass* k);
 406 
 407   // if heap base register is used - reinit it with the correct value
 408   void reinit_heapbase();
 409 
 410   DEBUG_ONLY(void verify_heapbase(const char* msg);)
 411 
 412   // Int division/remainder for Java
 413   // (as idivl, but checks for special case as described in JVM spec.)
 414   // returns idivl instruction offset for implicit exception handling
 415   int corrected_idivl(Register reg);
 416 
 417   // Long division/remainder for Java
 418   // (as idivq, but checks for special case as described in JVM spec.)
 419   // returns idivq instruction offset for implicit exception handling
 420   int corrected_idivq(Register reg);
 421 
 422   void int3();
 423 
 424   // Long operation macros for a 32bit cpu
 425   // Long negation for Java
 426   void lneg(Register hi, Register lo);
 427 
 428   // Long multiplication for Java
 429   // (destroys contents of eax, ebx, ecx and edx)
 430   void lmul(int x_rsp_offset, int y_rsp_offset); // rdx:rax = x * y
 431 
 432   // Long shifts for Java
 433   // (semantics as described in JVM spec.)
 434   void lshl(Register hi, Register lo);                               // hi:lo << (rcx & 0x3f)
 435   void lshr(Register hi, Register lo, bool sign_extension = false);  // hi:lo >> (rcx & 0x3f)
 436 
 437   // Long compare for Java
 438   // (semantics as described in JVM spec.)
 439   void lcmp2int(Register x_hi, Register x_lo, Register y_hi, Register y_lo); // x_hi = lcmp(x, y)
 440 
 441 
 442   // misc
 443 
 444   // Sign extension
 445   void sign_extend_short(Register reg);
 446   void sign_extend_byte(Register reg);
 447 
 448   // Clean up a subword typed value to the representation in compliance with JVMS ยง2.3
 449   void narrow_subword_type(Register reg, BasicType bt);
 450 
 451   // Division by power of 2, rounding towards 0
 452   void division_with_shift(Register reg, int shift_value);
 453 
 454   // dst = c = a * b + c
 455   void fmad(XMMRegister dst, XMMRegister a, XMMRegister b, XMMRegister c);
 456   void fmaf(XMMRegister dst, XMMRegister a, XMMRegister b, XMMRegister c);
 457 
 458   void vfmad(XMMRegister dst, XMMRegister a, XMMRegister b, XMMRegister c, int vector_len);
 459   void vfmaf(XMMRegister dst, XMMRegister a, XMMRegister b, XMMRegister c, int vector_len);
 460   void vfmad(XMMRegister dst, XMMRegister a, Address b, XMMRegister c, int vector_len);
 461   void vfmaf(XMMRegister dst, XMMRegister a, Address b, XMMRegister c, int vector_len);
 462 
 463 
 464   // same as fcmp2int, but using SSE2
 465   void cmpss2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less);
 466   void cmpsd2int(XMMRegister opr1, XMMRegister opr2, Register dst, bool unordered_is_less);
 467 
 468   void push_IU_state();
 469   void pop_IU_state();
 470 
 471   void push_FPU_state();
 472   void pop_FPU_state();
 473 
 474   void push_CPU_state();
 475   void pop_CPU_state();
 476 
 477   void push_cont_fastpath();
 478   void pop_cont_fastpath();
 479 
 480   DEBUG_ONLY(void stop_if_in_cont(Register cont_reg, const char* name);)
 481 
 482   // Round up to a power of two
 483   void round_to(Register reg, int modulus);
 484 
 485 private:
 486   // General purpose and XMM registers potentially clobbered by native code; there
 487   // is no need for FPU or AVX opmask related methods because C1/interpreter
 488   // - we save/restore FPU state as a whole always
 489   // - do not care about AVX-512 opmask
 490   static RegSet call_clobbered_gp_registers();
 491   static XMMRegSet call_clobbered_xmm_registers();
 492 
 493   void push_set(XMMRegSet set, int offset);
 494   void pop_set(XMMRegSet set, int offset);
 495 
 496 public:
 497   void push_set(RegSet set, int offset = -1);
 498   void pop_set(RegSet set, int offset = -1);
 499 
 500   // Push and pop everything that might be clobbered by a native
 501   // runtime call.
 502   // Only save the lower 64 bits of each vector register.
 503   // Additional registers can be excluded in a passed RegSet.
 504   void push_call_clobbered_registers_except(RegSet exclude, bool save_fpu = true);
 505   void pop_call_clobbered_registers_except(RegSet exclude, bool restore_fpu = true);
 506 
 507   void push_call_clobbered_registers(bool save_fpu = true) {
 508     push_call_clobbered_registers_except(RegSet(), save_fpu);
 509   }
 510   void pop_call_clobbered_registers(bool restore_fpu = true) {
 511     pop_call_clobbered_registers_except(RegSet(), restore_fpu);
 512   }
 513 
 514   // allocation
 515   void tlab_allocate(
 516     Register obj,                      // result: pointer to object after successful allocation
 517     Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
 518     int      con_size_in_bytes,        // object size in bytes if   known at compile time
 519     Register t1,                       // temp register
 520     Register t2,                       // temp register
 521     Label&   slow_case                 // continuation point if fast allocation fails
 522   );
 523   void zero_memory(Register address, Register length_in_bytes, int offset_in_bytes, Register temp);
 524 
 525   void population_count(Register dst, Register src, Register scratch1, Register scratch2);
 526 
 527   // interface method calling
 528   void lookup_interface_method(Register recv_klass,
 529                                Register intf_klass,
 530                                RegisterOrConstant itable_index,
 531                                Register method_result,
 532                                Register scan_temp,
 533                                Label& no_such_interface,
 534                                bool return_method = true);
 535 
 536   void lookup_interface_method_stub(Register recv_klass,
 537                                     Register holder_klass,
 538                                     Register resolved_klass,
 539                                     Register method_result,
 540                                     Register scan_temp,
 541                                     Register temp_reg2,
 542                                     Register receiver,
 543                                     int itable_index,
 544                                     Label& L_no_such_interface);
 545 
 546   // virtual method calling
 547   void lookup_virtual_method(Register recv_klass,
 548                              RegisterOrConstant vtable_index,
 549                              Register method_result);
 550 
 551   // Test sub_klass against super_klass, with fast and slow paths.
 552 
 553   // The fast path produces a tri-state answer: yes / no / maybe-slow.
 554   // One of the three labels can be null, meaning take the fall-through.
 555   // If super_check_offset is -1, the value is loaded up from super_klass.
 556   // No registers are killed, except temp_reg.
 557   void check_klass_subtype_fast_path(Register sub_klass,
 558                                      Register super_klass,
 559                                      Register temp_reg,
 560                                      Label* L_success,
 561                                      Label* L_failure,
 562                                      Label* L_slow_path,
 563                 RegisterOrConstant super_check_offset = RegisterOrConstant(-1));
 564 
 565   // The rest of the type check; must be wired to a corresponding fast path.
 566   // It does not repeat the fast path logic, so don't use it standalone.
 567   // The temp_reg and temp2_reg can be noreg, if no temps are available.
 568   // Updates the sub's secondary super cache as necessary.
 569   // If set_cond_codes, condition codes will be Z on success, NZ on failure.
 570   void check_klass_subtype_slow_path(Register sub_klass,
 571                                      Register super_klass,
 572                                      Register temp_reg,
 573                                      Register temp2_reg,
 574                                      Label* L_success,
 575                                      Label* L_failure,
 576                                      bool set_cond_codes = false);
 577 
 578   // The 64-bit version, which may do a hashed subclass lookup.
 579   void check_klass_subtype_slow_path(Register sub_klass,
 580                                      Register super_klass,
 581                                      Register temp_reg,
 582                                      Register temp2_reg,
 583                                      Register temp3_reg,
 584                                      Register temp4_reg,
 585                                      Label* L_success,
 586                                      Label* L_failure);
 587 
 588   // Three parts of a hashed subclass lookup: a simple linear search,
 589   // a table lookup, and a fallback that does linear probing in the
 590   // event of a hash collision.
 591   void check_klass_subtype_slow_path_linear(Register sub_klass,
 592                                             Register super_klass,
 593                                             Register temp_reg,
 594                                             Register temp2_reg,
 595                                             Label* L_success,
 596                                             Label* L_failure,
 597                                             bool set_cond_codes = false);
 598   void check_klass_subtype_slow_path_table(Register sub_klass,
 599                                            Register super_klass,
 600                                            Register temp_reg,
 601                                            Register temp2_reg,
 602                                            Register temp3_reg,
 603                                            Register result_reg,
 604                                            Label* L_success,
 605                                            Label* L_failure);
 606   void hashed_check_klass_subtype_slow_path(Register sub_klass,
 607                                             Register super_klass,
 608                                             Register temp_reg,
 609                                             Label* L_success,
 610                                             Label* L_failure);
 611 
 612   // As above, but with a constant super_klass.
 613   // The result is in Register result, not the condition codes.
 614   void lookup_secondary_supers_table_const(Register sub_klass,
 615                                            Register super_klass,
 616                                            Register temp1,
 617                                            Register temp2,
 618                                            Register temp3,
 619                                            Register temp4,
 620                                            Register result,
 621                                            u1 super_klass_slot);
 622 
 623   using Assembler::salq;
 624   void salq(Register dest, Register count);
 625   using Assembler::rorq;
 626   void rorq(Register dest, Register count);
 627   void lookup_secondary_supers_table_var(Register sub_klass,
 628                                          Register super_klass,
 629                                          Register temp1,
 630                                          Register temp2,
 631                                          Register temp3,
 632                                          Register temp4,
 633                                          Register result);
 634 
 635   void lookup_secondary_supers_table_slow_path(Register r_super_klass,
 636                                                Register r_array_base,
 637                                                Register r_array_index,
 638                                                Register r_bitmap,
 639                                                Register temp1,
 640                                                Register temp2,
 641                                                Label* L_success,
 642                                                Label* L_failure = nullptr);
 643 
 644   void verify_secondary_supers_table(Register r_sub_klass,
 645                                      Register r_super_klass,
 646                                      Register expected,
 647                                      Register temp1,
 648                                      Register temp2,
 649                                      Register temp3);
 650 
 651   void repne_scanq(Register addr, Register value, Register count, Register limit,
 652                    Label* L_success,
 653                    Label* L_failure = nullptr);
 654 
 655   // If r is valid, return r.
 656   // If r is invalid, remove a register r2 from available_regs, add r2
 657   // to regs_to_push, then return r2.
 658   Register allocate_if_noreg(const Register r,
 659                              RegSetIterator<Register> &available_regs,
 660                              RegSet &regs_to_push);
 661 
 662   // Simplified, combined version, good for typical uses.
 663   // Falls through on failure.
 664   void check_klass_subtype(Register sub_klass,
 665                            Register super_klass,
 666                            Register temp_reg,
 667                            Label& L_success);
 668 
 669   void clinit_barrier(Register klass,
 670                       Label* L_fast_path = nullptr,
 671                       Label* L_slow_path = nullptr);
 672 
 673   // method handles (JSR 292)
 674   Address argument_address(RegisterOrConstant arg_slot, int extra_slot_offset = 0);
 675 
 676   void profile_receiver_type(Register recv, Register mdp, int mdp_offset);
 677 
 678   // Debugging
 679 
 680   // only if +VerifyOops
 681   void _verify_oop(Register reg, const char* s, const char* file, int line);
 682   void _verify_oop_addr(Address addr, const char* s, const char* file, int line);
 683 
 684   void _verify_oop_checked(Register reg, const char* s, const char* file, int line) {
 685     if (VerifyOops) {
 686       _verify_oop(reg, s, file, line);
 687     }
 688   }
 689   void _verify_oop_addr_checked(Address reg, const char* s, const char* file, int line) {
 690     if (VerifyOops) {
 691       _verify_oop_addr(reg, s, file, line);
 692     }
 693   }
 694 
 695   // TODO: verify method and klass metadata (compare against vptr?)
 696   void _verify_method_ptr(Register reg, const char * msg, const char * file, int line) {}
 697   void _verify_klass_ptr(Register reg, const char * msg, const char * file, int line){}
 698 
 699 #define verify_oop(reg) _verify_oop_checked(reg, "broken oop " #reg, __FILE__, __LINE__)
 700 #define verify_oop_msg(reg, msg) _verify_oop_checked(reg, "broken oop " #reg ", " #msg, __FILE__, __LINE__)
 701 #define verify_oop_addr(addr) _verify_oop_addr_checked(addr, "broken oop addr " #addr, __FILE__, __LINE__)
 702 #define verify_method_ptr(reg) _verify_method_ptr(reg, "broken method " #reg, __FILE__, __LINE__)
 703 #define verify_klass_ptr(reg) _verify_klass_ptr(reg, "broken klass " #reg, __FILE__, __LINE__)
 704 
 705   // Verify or restore cpu control state after JNI call
 706   void restore_cpu_control_state_after_jni(Register rscratch);
 707 
 708   // prints msg, dumps registers and stops execution
 709   void stop(const char* msg);
 710 
 711   // prints msg and continues
 712   void warn(const char* msg);
 713 
 714   // dumps registers and other state
 715   void print_state();
 716 
 717   static void debug32(int rdi, int rsi, int rbp, int rsp, int rbx, int rdx, int rcx, int rax, int eip, char* msg);
 718   static void debug64(char* msg, int64_t pc, int64_t regs[]);
 719   static void print_state32(int rdi, int rsi, int rbp, int rsp, int rbx, int rdx, int rcx, int rax, int eip);
 720   static void print_state64(int64_t pc, int64_t regs[]);
 721 
 722   void os_breakpoint();
 723 
 724   void untested()                                { stop("untested"); }
 725 
 726   void unimplemented(const char* what = "");
 727 
 728   void should_not_reach_here()                   { stop("should not reach here"); }
 729 
 730   void print_CPU_state();
 731 
 732   // Stack overflow checking
 733   void bang_stack_with_offset(int offset) {
 734     // stack grows down, caller passes positive offset
 735     assert(offset > 0, "must bang with negative offset");
 736     movl(Address(rsp, (-offset)), rax);
 737   }
 738 
 739   // Writes to stack successive pages until offset reached to check for
 740   // stack overflow + shadow pages.  Also, clobbers tmp
 741   void bang_stack_size(Register size, Register tmp);
 742 
 743   // Check for reserved stack access in method being exited (for JIT)
 744   void reserved_stack_check();
 745 
 746   void safepoint_poll(Label& slow_path, bool at_return, bool in_nmethod);
 747 
 748   void verify_tlab();
 749 
 750   static Condition negate_condition(Condition cond);
 751 
 752   // Instructions that use AddressLiteral operands. These instruction can handle 32bit/64bit
 753   // operands. In general the names are modified to avoid hiding the instruction in Assembler
 754   // so that we don't need to implement all the varieties in the Assembler with trivial wrappers
 755   // here in MacroAssembler. The major exception to this rule is call
 756 
 757   // Arithmetics
 758 
 759 
 760   void addptr(Address dst, int32_t src) { addq(dst, src); }
 761   void addptr(Address dst, Register src);
 762 
 763   void addptr(Register dst, Address src) { addq(dst, src); }
 764   void addptr(Register dst, int32_t src);
 765   void addptr(Register dst, Register src);
 766   void addptr(Register dst, RegisterOrConstant src) {
 767     if (src.is_constant()) addptr(dst, checked_cast<int>(src.as_constant()));
 768     else                   addptr(dst, src.as_register());
 769   }
 770 
 771   void andptr(Register dst, int32_t src);
 772   void andptr(Register src1, Register src2) { andq(src1, src2); }
 773 
 774   using Assembler::andq;
 775   void andq(Register dst, AddressLiteral src, Register rscratch = noreg);
 776 
 777   void cmp8(AddressLiteral src1, int imm, Register rscratch = noreg);
 778 
 779   // renamed to drag out the casting of address to int32_t/intptr_t
 780   void cmp32(Register src1, int32_t imm);
 781 
 782   void cmp32(AddressLiteral src1, int32_t imm, Register rscratch = noreg);
 783   // compare reg - mem, or reg - &mem
 784   void cmp32(Register src1, AddressLiteral src2, Register rscratch = noreg);
 785 
 786   void cmp32(Register src1, Address src2);
 787 
 788   void cmpoop(Register src1, Register src2);
 789   void cmpoop(Register src1, Address src2);
 790   void cmpoop(Register dst, jobject obj, Register rscratch);
 791 
 792   // NOTE src2 must be the lval. This is NOT an mem-mem compare
 793   void cmpptr(Address src1, AddressLiteral src2, Register rscratch);
 794 
 795   void cmpptr(Register src1, AddressLiteral src2, Register rscratch = noreg);
 796 
 797   void cmpptr(Register src1, Register src2) { cmpq(src1, src2); }
 798   void cmpptr(Register src1, Address src2) { cmpq(src1, src2); }
 799 
 800   void cmpptr(Register src1, int32_t src2) { cmpq(src1, src2); }
 801   void cmpptr(Address src1, int32_t src2) { cmpq(src1, src2); }
 802 
 803   // cmp64 to avoild hiding cmpq
 804   void cmp64(Register src1, AddressLiteral src, Register rscratch = noreg);
 805 
 806   void cmpxchgptr(Register reg, Address adr);
 807 
 808   void locked_cmpxchgptr(Register reg, AddressLiteral adr, Register rscratch = noreg);
 809 
 810   void imulptr(Register dst, Register src) { imulq(dst, src); }
 811   void imulptr(Register dst, Register src, int imm32) { imulq(dst, src, imm32); }
 812 
 813 
 814   void negptr(Register dst) { negq(dst); }
 815 
 816   void notptr(Register dst) { notq(dst); }
 817 
 818   void shlptr(Register dst, int32_t shift);
 819   void shlptr(Register dst) { shlq(dst); }
 820 
 821   void shrptr(Register dst, int32_t shift);
 822   void shrptr(Register dst) { shrq(dst); }
 823 
 824   void sarptr(Register dst) { sarq(dst); }
 825   void sarptr(Register dst, int32_t src) { sarq(dst, src); }
 826 
 827   void subptr(Address dst, int32_t src) { subq(dst, src); }
 828 
 829   void subptr(Register dst, Address src) { subq(dst, src); }
 830   void subptr(Register dst, int32_t src);
 831   // Force generation of a 4 byte immediate value even if it fits into 8bit
 832   void subptr_imm32(Register dst, int32_t src);
 833   void subptr(Register dst, Register src);
 834   void subptr(Register dst, RegisterOrConstant src) {
 835     if (src.is_constant()) subptr(dst, (int) src.as_constant());
 836     else                   subptr(dst,       src.as_register());
 837   }
 838 
 839   void sbbptr(Address dst, int32_t src) { sbbq(dst, src); }
 840   void sbbptr(Register dst, int32_t src) { sbbq(dst, src); }
 841 
 842   void xchgptr(Register src1, Register src2) { xchgq(src1, src2); }
 843   void xchgptr(Register src1, Address src2) { xchgq(src1, src2); }
 844 
 845   void xaddptr(Address src1, Register src2) { xaddq(src1, src2); }
 846 
 847 
 848 
 849   // Helper functions for statistics gathering.
 850   // Conditionally (atomically, on MPs) increments passed counter address, preserving condition codes.
 851   void cond_inc32(Condition cond, AddressLiteral counter_addr, Register rscratch = noreg);
 852   // Unconditional atomic increment.
 853   void atomic_incl(Address counter_addr);
 854   void atomic_incl(AddressLiteral counter_addr, Register rscratch = noreg);
 855   void atomic_incq(Address counter_addr);
 856   void atomic_incq(AddressLiteral counter_addr, Register rscratch = noreg);
 857   void atomic_incptr(AddressLiteral counter_addr, Register rscratch = noreg) { atomic_incq(counter_addr, rscratch); }
 858   void atomic_incptr(Address counter_addr) { atomic_incq(counter_addr); }
 859 
 860   using Assembler::lea;
 861   void lea(Register dst, AddressLiteral adr);
 862   void lea(Address  dst, AddressLiteral adr, Register rscratch);
 863 
 864   void leal32(Register dst, Address src) { leal(dst, src); }
 865 
 866   // Import other testl() methods from the parent class or else
 867   // they will be hidden by the following overriding declaration.
 868   using Assembler::testl;
 869   void testl(Address dst, int32_t imm32);
 870   void testl(Register dst, int32_t imm32);
 871   void testl(Register dst, AddressLiteral src); // requires reachable address
 872   using Assembler::testq;
 873   void testq(Address dst, int32_t imm32);
 874   void testq(Register dst, int32_t imm32);
 875 
 876   void orptr(Register dst, Address src) { orq(dst, src); }
 877   void orptr(Register dst, Register src) { orq(dst, src); }
 878   void orptr(Register dst, int32_t src) { orq(dst, src); }
 879   void orptr(Address dst, int32_t imm32) { orq(dst, imm32); }
 880 
 881   void testptr(Register src, int32_t imm32) { testq(src, imm32); }
 882   void testptr(Register src1, Address src2) { testq(src1, src2); }
 883   void testptr(Address src, int32_t imm32) { testq(src, imm32); }
 884   void testptr(Register src1, Register src2);
 885 
 886   void xorptr(Register dst, Register src) { xorq(dst, src); }
 887   void xorptr(Register dst, Address src) { xorq(dst, src); }
 888 
 889   // Calls
 890 
 891   void call(Label& L, relocInfo::relocType rtype);
 892   void call(Register entry);
 893   void call(Address addr) { Assembler::call(addr); }
 894 
 895   // NOTE: this call transfers to the effective address of entry NOT
 896   // the address contained by entry. This is because this is more natural
 897   // for jumps/calls.
 898   void call(AddressLiteral entry, Register rscratch = rax);
 899 
 900   // Emit the CompiledIC call idiom
 901   void ic_call(address entry, jint method_index = 0);
 902   static int ic_check_size();
 903   int ic_check(int end_alignment);
 904 
 905   void emit_static_call_stub();
 906 
 907   // Jumps
 908 
 909   // NOTE: these jumps transfer to the effective address of dst NOT
 910   // the address contained by dst. This is because this is more natural
 911   // for jumps/calls.
 912   void jump(AddressLiteral dst, Register rscratch = noreg);
 913 
 914   void jump_cc(Condition cc, AddressLiteral dst, Register rscratch = noreg);
 915 
 916   // 32bit can do a case table jump in one instruction but we no longer allow the base
 917   // to be installed in the Address class. This jump will transfer to the address
 918   // contained in the location described by entry (not the address of entry)
 919   void jump(ArrayAddress entry, Register rscratch);
 920 
 921   // Adding more natural conditional jump instructions
 922   void ALWAYSINLINE jo(Label& L, bool maybe_short = true) { jcc(Assembler::overflow, L, maybe_short); }
 923   void ALWAYSINLINE jno(Label& L, bool maybe_short = true) { jcc(Assembler::noOverflow, L, maybe_short); }
 924   void ALWAYSINLINE js(Label& L, bool maybe_short = true) { jcc(Assembler::negative, L, maybe_short); }
 925   void ALWAYSINLINE jns(Label& L, bool maybe_short = true) { jcc(Assembler::positive, L, maybe_short); }
 926   void ALWAYSINLINE je(Label& L, bool maybe_short = true) { jcc(Assembler::equal, L, maybe_short); }
 927   void ALWAYSINLINE jz(Label& L, bool maybe_short = true) { jcc(Assembler::zero, L, maybe_short); }
 928   void ALWAYSINLINE jne(Label& L, bool maybe_short = true) { jcc(Assembler::notEqual, L, maybe_short); }
 929   void ALWAYSINLINE jnz(Label& L, bool maybe_short = true) { jcc(Assembler::notZero, L, maybe_short); }
 930   void ALWAYSINLINE jb(Label& L, bool maybe_short = true) { jcc(Assembler::below, L, maybe_short); }
 931   void ALWAYSINLINE jnae(Label& L, bool maybe_short = true) { jcc(Assembler::below, L, maybe_short); }
 932   void ALWAYSINLINE jc(Label& L, bool maybe_short = true) { jcc(Assembler::carrySet, L, maybe_short); }
 933   void ALWAYSINLINE jnb(Label& L, bool maybe_short = true) { jcc(Assembler::aboveEqual, L, maybe_short); }
 934   void ALWAYSINLINE jae(Label& L, bool maybe_short = true) { jcc(Assembler::aboveEqual, L, maybe_short); }
 935   void ALWAYSINLINE jnc(Label& L, bool maybe_short = true) { jcc(Assembler::carryClear, L, maybe_short); }
 936   void ALWAYSINLINE jbe(Label& L, bool maybe_short = true) { jcc(Assembler::belowEqual, L, maybe_short); }
 937   void ALWAYSINLINE jna(Label& L, bool maybe_short = true) { jcc(Assembler::belowEqual, L, maybe_short); }
 938   void ALWAYSINLINE ja(Label& L, bool maybe_short = true) { jcc(Assembler::above, L, maybe_short); }
 939   void ALWAYSINLINE jnbe(Label& L, bool maybe_short = true) { jcc(Assembler::above, L, maybe_short); }
 940   void ALWAYSINLINE jl(Label& L, bool maybe_short = true) { jcc(Assembler::less, L, maybe_short); }
 941   void ALWAYSINLINE jnge(Label& L, bool maybe_short = true) { jcc(Assembler::less, L, maybe_short); }
 942   void ALWAYSINLINE jge(Label& L, bool maybe_short = true) { jcc(Assembler::greaterEqual, L, maybe_short); }
 943   void ALWAYSINLINE jnl(Label& L, bool maybe_short = true) { jcc(Assembler::greaterEqual, L, maybe_short); }
 944   void ALWAYSINLINE jle(Label& L, bool maybe_short = true) { jcc(Assembler::lessEqual, L, maybe_short); }
 945   void ALWAYSINLINE jng(Label& L, bool maybe_short = true) { jcc(Assembler::lessEqual, L, maybe_short); }
 946   void ALWAYSINLINE jg(Label& L, bool maybe_short = true) { jcc(Assembler::greater, L, maybe_short); }
 947   void ALWAYSINLINE jnle(Label& L, bool maybe_short = true) { jcc(Assembler::greater, L, maybe_short); }
 948   void ALWAYSINLINE jp(Label& L, bool maybe_short = true) { jcc(Assembler::parity, L, maybe_short); }
 949   void ALWAYSINLINE jpe(Label& L, bool maybe_short = true) { jcc(Assembler::parity, L, maybe_short); }
 950   void ALWAYSINLINE jnp(Label& L, bool maybe_short = true) { jcc(Assembler::noParity, L, maybe_short); }
 951   void ALWAYSINLINE jpo(Label& L, bool maybe_short = true) { jcc(Assembler::noParity, L, maybe_short); }
 952   // * No condition for this *  void ALWAYSINLINE jcxz(Label& L, bool maybe_short = true) { jcc(Assembler::cxz, L, maybe_short); }
 953   // * No condition for this *  void ALWAYSINLINE jecxz(Label& L, bool maybe_short = true) { jcc(Assembler::cxz, L, maybe_short); }
 954 
 955   // Short versions of the above
 956   void ALWAYSINLINE jo_b(Label& L) { jccb(Assembler::overflow, L); }
 957   void ALWAYSINLINE jno_b(Label& L) { jccb(Assembler::noOverflow, L); }
 958   void ALWAYSINLINE js_b(Label& L) { jccb(Assembler::negative, L); }
 959   void ALWAYSINLINE jns_b(Label& L) { jccb(Assembler::positive, L); }
 960   void ALWAYSINLINE je_b(Label& L) { jccb(Assembler::equal, L); }
 961   void ALWAYSINLINE jz_b(Label& L) { jccb(Assembler::zero, L); }
 962   void ALWAYSINLINE jne_b(Label& L) { jccb(Assembler::notEqual, L); }
 963   void ALWAYSINLINE jnz_b(Label& L) { jccb(Assembler::notZero, L); }
 964   void ALWAYSINLINE jb_b(Label& L) { jccb(Assembler::below, L); }
 965   void ALWAYSINLINE jnae_b(Label& L) { jccb(Assembler::below, L); }
 966   void ALWAYSINLINE jc_b(Label& L) { jccb(Assembler::carrySet, L); }
 967   void ALWAYSINLINE jnb_b(Label& L) { jccb(Assembler::aboveEqual, L); }
 968   void ALWAYSINLINE jae_b(Label& L) { jccb(Assembler::aboveEqual, L); }
 969   void ALWAYSINLINE jnc_b(Label& L) { jccb(Assembler::carryClear, L); }
 970   void ALWAYSINLINE jbe_b(Label& L) { jccb(Assembler::belowEqual, L); }
 971   void ALWAYSINLINE jna_b(Label& L) { jccb(Assembler::belowEqual, L); }
 972   void ALWAYSINLINE ja_b(Label& L) { jccb(Assembler::above, L); }
 973   void ALWAYSINLINE jnbe_b(Label& L) { jccb(Assembler::above, L); }
 974   void ALWAYSINLINE jl_b(Label& L) { jccb(Assembler::less, L); }
 975   void ALWAYSINLINE jnge_b(Label& L) { jccb(Assembler::less, L); }
 976   void ALWAYSINLINE jge_b(Label& L) { jccb(Assembler::greaterEqual, L); }
 977   void ALWAYSINLINE jnl_b(Label& L) { jccb(Assembler::greaterEqual, L); }
 978   void ALWAYSINLINE jle_b(Label& L) { jccb(Assembler::lessEqual, L); }
 979   void ALWAYSINLINE jng_b(Label& L) { jccb(Assembler::lessEqual, L); }
 980   void ALWAYSINLINE jg_b(Label& L) { jccb(Assembler::greater, L); }
 981   void ALWAYSINLINE jnle_b(Label& L) { jccb(Assembler::greater, L); }
 982   void ALWAYSINLINE jp_b(Label& L) { jccb(Assembler::parity, L); }
 983   void ALWAYSINLINE jpe_b(Label& L) { jccb(Assembler::parity, L); }
 984   void ALWAYSINLINE jnp_b(Label& L) { jccb(Assembler::noParity, L); }
 985   void ALWAYSINLINE jpo_b(Label& L) { jccb(Assembler::noParity, L); }
 986   // * No condition for this *  void ALWAYSINLINE jcxz_b(Label& L) { jccb(Assembler::cxz, L); }
 987   // * No condition for this *  void ALWAYSINLINE jecxz_b(Label& L) { jccb(Assembler::cxz, L); }
 988 
 989   // Floating
 990 
 991   void push_f(XMMRegister r);
 992   void pop_f(XMMRegister r);
 993   void push_d(XMMRegister r);
 994   void pop_d(XMMRegister r);
 995 
 996   void push_ppx(Register src);
 997   void pop_ppx(Register dst);
 998 
 999   void andpd(XMMRegister dst, XMMRegister    src) { Assembler::andpd(dst, src); }
1000   void andpd(XMMRegister dst, Address        src) { Assembler::andpd(dst, src); }
1001   void andpd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1002 
1003   void andnpd(XMMRegister dst, XMMRegister src) { Assembler::andnpd(dst, src); }
1004 
1005   void andps(XMMRegister dst, XMMRegister    src) { Assembler::andps(dst, src); }
1006   void andps(XMMRegister dst, Address        src) { Assembler::andps(dst, src); }
1007   void andps(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1008 
1009   void comiss(XMMRegister dst, XMMRegister    src) { Assembler::comiss(dst, src); }
1010   void comiss(XMMRegister dst, Address        src) { Assembler::comiss(dst, src); }
1011   void comiss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1012 
1013   void comisd(XMMRegister dst, XMMRegister    src) { Assembler::comisd(dst, src); }
1014   void comisd(XMMRegister dst, Address        src) { Assembler::comisd(dst, src); }
1015   void comisd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1016 
1017   void orpd(XMMRegister dst, XMMRegister src) { Assembler::orpd(dst, src); }
1018 
1019   void cmp32_mxcsr_std(Address mxcsr_save, Register tmp, Register rscratch = noreg);
1020   void ldmxcsr(Address src) { Assembler::ldmxcsr(src); }
1021   void ldmxcsr(AddressLiteral src, Register rscratch = noreg);
1022 
1023  private:
1024   void sha256_AVX2_one_round_compute(
1025     Register  reg_old_h,
1026     Register  reg_a,
1027     Register  reg_b,
1028     Register  reg_c,
1029     Register  reg_d,
1030     Register  reg_e,
1031     Register  reg_f,
1032     Register  reg_g,
1033     Register  reg_h,
1034     int iter);
1035   void sha256_AVX2_four_rounds_compute_first(int start);
1036   void sha256_AVX2_four_rounds_compute_last(int start);
1037   void sha256_AVX2_one_round_and_sched(
1038         XMMRegister xmm_0,     /* == ymm4 on 0, 1, 2, 3 iterations, then rotate 4 registers left on 4, 8, 12 iterations */
1039         XMMRegister xmm_1,     /* ymm5 */  /* full cycle is 16 iterations */
1040         XMMRegister xmm_2,     /* ymm6 */
1041         XMMRegister xmm_3,     /* ymm7 */
1042         Register    reg_a,      /* == eax on 0 iteration, then rotate 8 register right on each next iteration */
1043         Register    reg_b,      /* ebx */    /* full cycle is 8 iterations */
1044         Register    reg_c,      /* edi */
1045         Register    reg_d,      /* esi */
1046         Register    reg_e,      /* r8d */
1047         Register    reg_f,      /* r9d */
1048         Register    reg_g,      /* r10d */
1049         Register    reg_h,      /* r11d */
1050         int iter);
1051 
1052   void addm(int disp, Register r1, Register r2);
1053 
1054   void sha512_AVX2_one_round_compute(Register old_h, Register a, Register b, Register c, Register d,
1055                                      Register e, Register f, Register g, Register h, int iteration);
1056 
1057   void sha512_AVX2_one_round_and_schedule(XMMRegister xmm4, XMMRegister xmm5, XMMRegister xmm6, XMMRegister xmm7,
1058                                           Register a, Register b, Register c, Register d, Register e, Register f,
1059                                           Register g, Register h, int iteration);
1060 
1061   void addmq(int disp, Register r1, Register r2);
1062  public:
1063   void sha256_AVX2(XMMRegister msg, XMMRegister state0, XMMRegister state1, XMMRegister msgtmp0,
1064                    XMMRegister msgtmp1, XMMRegister msgtmp2, XMMRegister msgtmp3, XMMRegister msgtmp4,
1065                    Register buf, Register state, Register ofs, Register limit, Register rsp,
1066                    bool multi_block, XMMRegister shuf_mask);
1067   void sha512_AVX2(XMMRegister msg, XMMRegister state0, XMMRegister state1, XMMRegister msgtmp0,
1068                    XMMRegister msgtmp1, XMMRegister msgtmp2, XMMRegister msgtmp3, XMMRegister msgtmp4,
1069                    Register buf, Register state, Register ofs, Register limit, Register rsp, bool multi_block,
1070                    XMMRegister shuf_mask);
1071   void sha512_update_ni_x1(Register arg_hash, Register arg_msg, Register ofs, Register limit, bool multi_block);
1072 
1073   void fast_md5(Register buf, Address state, Address ofs, Address limit,
1074                 bool multi_block);
1075 
1076   void fast_sha1(XMMRegister abcd, XMMRegister e0, XMMRegister e1, XMMRegister msg0,
1077                  XMMRegister msg1, XMMRegister msg2, XMMRegister msg3, XMMRegister shuf_mask,
1078                  Register buf, Register state, Register ofs, Register limit, Register rsp,
1079                  bool multi_block);
1080 
1081   void fast_sha256(XMMRegister msg, XMMRegister state0, XMMRegister state1, XMMRegister msgtmp0,
1082                    XMMRegister msgtmp1, XMMRegister msgtmp2, XMMRegister msgtmp3, XMMRegister msgtmp4,
1083                    Register buf, Register state, Register ofs, Register limit, Register rsp,
1084                    bool multi_block, XMMRegister shuf_mask);
1085 
1086   void fast_exp(XMMRegister xmm0, XMMRegister xmm1, XMMRegister xmm2, XMMRegister xmm3,
1087                 XMMRegister xmm4, XMMRegister xmm5, XMMRegister xmm6, XMMRegister xmm7,
1088                 Register rax, Register rcx, Register rdx, Register tmp);
1089 
1090 private:
1091 
1092   // these are private because users should be doing movflt/movdbl
1093 
1094   void movss(Address     dst, XMMRegister    src) { Assembler::movss(dst, src); }
1095   void movss(XMMRegister dst, XMMRegister    src) { Assembler::movss(dst, src); }
1096   void movss(XMMRegister dst, Address        src) { Assembler::movss(dst, src); }
1097   void movss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1098 
1099   void movlpd(XMMRegister dst, Address        src) {Assembler::movlpd(dst, src); }
1100   void movlpd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1101 
1102 public:
1103 
1104   void addsd(XMMRegister dst, XMMRegister    src) { Assembler::addsd(dst, src); }
1105   void addsd(XMMRegister dst, Address        src) { Assembler::addsd(dst, src); }
1106   void addsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1107 
1108   void addss(XMMRegister dst, XMMRegister    src) { Assembler::addss(dst, src); }
1109   void addss(XMMRegister dst, Address        src) { Assembler::addss(dst, src); }
1110   void addss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1111 
1112   void addpd(XMMRegister dst, XMMRegister    src) { Assembler::addpd(dst, src); }
1113   void addpd(XMMRegister dst, Address        src) { Assembler::addpd(dst, src); }
1114   void addpd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1115 
1116   using Assembler::vbroadcasti128;
1117   void vbroadcasti128(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1118 
1119   using Assembler::vbroadcastsd;
1120   void vbroadcastsd(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1121 
1122   using Assembler::vbroadcastss;
1123   void vbroadcastss(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1124 
1125   // Vector float blend
1126   void vblendvps(XMMRegister dst, XMMRegister nds, XMMRegister src, XMMRegister mask, int vector_len, bool compute_mask = true, XMMRegister scratch = xnoreg);
1127   void vblendvpd(XMMRegister dst, XMMRegister nds, XMMRegister src, XMMRegister mask, int vector_len, bool compute_mask = true, XMMRegister scratch = xnoreg);
1128 
1129   void divsd(XMMRegister dst, XMMRegister    src) { Assembler::divsd(dst, src); }
1130   void divsd(XMMRegister dst, Address        src) { Assembler::divsd(dst, src); }
1131   void divsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1132 
1133   void divss(XMMRegister dst, XMMRegister    src) { Assembler::divss(dst, src); }
1134   void divss(XMMRegister dst, Address        src) { Assembler::divss(dst, src); }
1135   void divss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1136 
1137   // Move Unaligned Double Quadword
1138   void movdqu(Address     dst, XMMRegister    src);
1139   void movdqu(XMMRegister dst, XMMRegister    src);
1140   void movdqu(XMMRegister dst, Address        src);
1141   void movdqu(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1142 
1143   void kmovwl(Register  dst, KRegister      src) { Assembler::kmovwl(dst, src); }
1144   void kmovwl(Address   dst, KRegister      src) { Assembler::kmovwl(dst, src); }
1145   void kmovwl(KRegister dst, KRegister      src) { Assembler::kmovwl(dst, src); }
1146   void kmovwl(KRegister dst, Register       src) { Assembler::kmovwl(dst, src); }
1147   void kmovwl(KRegister dst, Address        src) { Assembler::kmovwl(dst, src); }
1148   void kmovwl(KRegister dst, AddressLiteral src, Register rscratch = noreg);
1149 
1150   void kmovql(KRegister dst, KRegister      src) { Assembler::kmovql(dst, src); }
1151   void kmovql(KRegister dst, Register       src) { Assembler::kmovql(dst, src); }
1152   void kmovql(Register  dst, KRegister      src) { Assembler::kmovql(dst, src); }
1153   void kmovql(KRegister dst, Address        src) { Assembler::kmovql(dst, src); }
1154   void kmovql(Address   dst, KRegister      src) { Assembler::kmovql(dst, src); }
1155   void kmovql(KRegister dst, AddressLiteral src, Register rscratch = noreg);
1156 
1157   // Safe move operation, lowers down to 16bit moves for targets supporting
1158   // AVX512F feature and 64bit moves for targets supporting AVX512BW feature.
1159   void kmov(Address  dst, KRegister src);
1160   void kmov(KRegister dst, Address src);
1161   void kmov(KRegister dst, KRegister src);
1162   void kmov(Register dst, KRegister src);
1163   void kmov(KRegister dst, Register src);
1164 
1165   using Assembler::movddup;
1166   void movddup(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1167 
1168   using Assembler::vmovddup;
1169   void vmovddup(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1170 
1171   // AVX Unaligned forms
1172   void vmovdqu(Address     dst, XMMRegister    src);
1173   void vmovdqu(XMMRegister dst, Address        src);
1174   void vmovdqu(XMMRegister dst, XMMRegister    src);
1175   void vmovdqu(XMMRegister dst, AddressLiteral src,                 Register rscratch = noreg);
1176   void vmovdqu(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1177   void vmovdqu(XMMRegister dst, XMMRegister    src, int vector_len);
1178   void vmovdqu(XMMRegister dst, Address        src, int vector_len);
1179   void vmovdqu(Address     dst, XMMRegister    src, int vector_len);
1180 
1181   // AVX Aligned forms
1182   using Assembler::vmovdqa;
1183   void vmovdqa(XMMRegister dst, AddressLiteral src,                 Register rscratch = noreg);
1184   void vmovdqa(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1185   void vmovdqa(XMMRegister dst, Address        src, int vector_len);
1186   void vmovdqa(Address     dst, XMMRegister    src, int vector_len);
1187 
1188   // AVX512 Unaligned
1189   void evmovdqu(BasicType type, KRegister kmask, Address     dst, XMMRegister src, bool merge, int vector_len);
1190   void evmovdqu(BasicType type, KRegister kmask, XMMRegister dst, Address     src, bool merge, int vector_len);
1191   void evmovdqu(BasicType type, KRegister kmask, XMMRegister dst, XMMRegister src, bool merge, int vector_len);
1192 
1193   void evmovdqub(XMMRegister dst, XMMRegister src, int vector_len) { Assembler::evmovdqub(dst, src, vector_len); }
1194   void evmovdqub(XMMRegister dst, Address     src, int vector_len) { Assembler::evmovdqub(dst, src, vector_len); }
1195 
1196   void evmovdqub(XMMRegister dst, KRegister mask, XMMRegister src, bool merge, int vector_len) {
1197     if (dst->encoding() != src->encoding() || mask != k0)  {
1198       Assembler::evmovdqub(dst, mask, src, merge, vector_len);
1199     }
1200   }
1201   void evmovdqub(Address     dst, KRegister mask, XMMRegister    src, bool merge, int vector_len) { Assembler::evmovdqub(dst, mask, src, merge, vector_len); }
1202   void evmovdqub(XMMRegister dst, KRegister mask, Address        src, bool merge, int vector_len) { Assembler::evmovdqub(dst, mask, src, merge, vector_len); }
1203   void evmovdqub(XMMRegister dst, KRegister mask, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1204 
1205   void evmovdquw(XMMRegister dst, XMMRegister src, int vector_len) { Assembler::evmovdquw(dst, src, vector_len); }
1206   void evmovdquw(Address     dst, XMMRegister src, int vector_len) { Assembler::evmovdquw(dst, src, vector_len); }
1207   void evmovdquw(XMMRegister dst, Address     src, int vector_len) { Assembler::evmovdquw(dst, src, vector_len); }
1208 
1209   void evmovdquw(XMMRegister dst, KRegister mask, XMMRegister src, bool merge, int vector_len) {
1210     if (dst->encoding() != src->encoding() || mask != k0) {
1211       Assembler::evmovdquw(dst, mask, src, merge, vector_len);
1212     }
1213   }
1214   void evmovdquw(XMMRegister dst, KRegister mask, Address        src, bool merge, int vector_len) { Assembler::evmovdquw(dst, mask, src, merge, vector_len); }
1215   void evmovdquw(Address     dst, KRegister mask, XMMRegister    src, bool merge, int vector_len) { Assembler::evmovdquw(dst, mask, src, merge, vector_len); }
1216   void evmovdquw(XMMRegister dst, KRegister mask, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1217 
1218   void evmovdqul(XMMRegister dst, XMMRegister src, int vector_len) {
1219      if (dst->encoding() != src->encoding()) {
1220        Assembler::evmovdqul(dst, src, vector_len);
1221      }
1222   }
1223   void evmovdqul(Address     dst, XMMRegister src, int vector_len) { Assembler::evmovdqul(dst, src, vector_len); }
1224   void evmovdqul(XMMRegister dst, Address     src, int vector_len) { Assembler::evmovdqul(dst, src, vector_len); }
1225 
1226   void evmovdqul(XMMRegister dst, KRegister mask, XMMRegister src, bool merge, int vector_len) {
1227     if (dst->encoding() != src->encoding() || mask != k0)  {
1228       Assembler::evmovdqul(dst, mask, src, merge, vector_len);
1229     }
1230   }
1231   void evmovdqul(Address     dst, KRegister mask, XMMRegister    src, bool merge, int vector_len) { Assembler::evmovdqul(dst, mask, src, merge, vector_len); }
1232   void evmovdqul(XMMRegister dst, KRegister mask, Address        src, bool merge, int vector_len) { Assembler::evmovdqul(dst, mask, src, merge, vector_len); }
1233   void evmovdqul(XMMRegister dst, KRegister mask, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1234 
1235   void evmovdquq(XMMRegister dst, XMMRegister src, int vector_len) {
1236     if (dst->encoding() != src->encoding()) {
1237       Assembler::evmovdquq(dst, src, vector_len);
1238     }
1239   }
1240   void evmovdquq(XMMRegister dst, Address        src, int vector_len) { Assembler::evmovdquq(dst, src, vector_len); }
1241   void evmovdquq(Address     dst, XMMRegister    src, int vector_len) { Assembler::evmovdquq(dst, src, vector_len); }
1242   void evmovdquq(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1243   void evmovdqaq(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1244 
1245   void evmovdquq(XMMRegister dst, KRegister mask, XMMRegister src, bool merge, int vector_len) {
1246     if (dst->encoding() != src->encoding() || mask != k0) {
1247       Assembler::evmovdquq(dst, mask, src, merge, vector_len);
1248     }
1249   }
1250   void evmovdquq(Address     dst, KRegister mask, XMMRegister    src, bool merge, int vector_len) { Assembler::evmovdquq(dst, mask, src, merge, vector_len); }
1251   void evmovdquq(XMMRegister dst, KRegister mask, Address        src, bool merge, int vector_len) { Assembler::evmovdquq(dst, mask, src, merge, vector_len); }
1252   void evmovdquq(XMMRegister dst, KRegister mask, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1253   void evmovdqaq(XMMRegister dst, KRegister mask, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1254 
1255   using Assembler::movapd;
1256   void movapd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1257 
1258   // Move Aligned Double Quadword
1259   void movdqa(XMMRegister dst, XMMRegister    src) { Assembler::movdqa(dst, src); }
1260   void movdqa(XMMRegister dst, Address        src) { Assembler::movdqa(dst, src); }
1261   void movdqa(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1262 
1263   void movsd(Address     dst, XMMRegister    src) { Assembler::movsd(dst, src); }
1264   void movsd(XMMRegister dst, XMMRegister    src) { Assembler::movsd(dst, src); }
1265   void movsd(XMMRegister dst, Address        src) { Assembler::movsd(dst, src); }
1266   void movsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1267 
1268   void mulpd(XMMRegister dst, XMMRegister    src) { Assembler::mulpd(dst, src); }
1269   void mulpd(XMMRegister dst, Address        src) { Assembler::mulpd(dst, src); }
1270   void mulpd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1271 
1272   void mulsd(XMMRegister dst, XMMRegister    src) { Assembler::mulsd(dst, src); }
1273   void mulsd(XMMRegister dst, Address        src) { Assembler::mulsd(dst, src); }
1274   void mulsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1275 
1276   void mulss(XMMRegister dst, XMMRegister    src) { Assembler::mulss(dst, src); }
1277   void mulss(XMMRegister dst, Address        src) { Assembler::mulss(dst, src); }
1278   void mulss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1279 
1280   // Carry-Less Multiplication Quadword
1281   void pclmulldq(XMMRegister dst, XMMRegister src) {
1282     // 0x00 - multiply lower 64 bits [0:63]
1283     Assembler::pclmulqdq(dst, src, 0x00);
1284   }
1285   void pclmulhdq(XMMRegister dst, XMMRegister src) {
1286     // 0x11 - multiply upper 64 bits [64:127]
1287     Assembler::pclmulqdq(dst, src, 0x11);
1288   }
1289 
1290   void pcmpeqb(XMMRegister dst, XMMRegister src);
1291   void pcmpeqw(XMMRegister dst, XMMRegister src);
1292 
1293   void pcmpestri(XMMRegister dst, Address src, int imm8);
1294   void pcmpestri(XMMRegister dst, XMMRegister src, int imm8);
1295 
1296   void pmovzxbw(XMMRegister dst, XMMRegister src);
1297   void pmovzxbw(XMMRegister dst, Address src);
1298 
1299   void pmovmskb(Register dst, XMMRegister src);
1300 
1301   void ptest(XMMRegister dst, XMMRegister src);
1302 
1303   void roundsd(XMMRegister dst, XMMRegister    src, int32_t rmode) { Assembler::roundsd(dst, src, rmode); }
1304   void roundsd(XMMRegister dst, Address        src, int32_t rmode) { Assembler::roundsd(dst, src, rmode); }
1305   void roundsd(XMMRegister dst, AddressLiteral src, int32_t rmode, Register rscratch = noreg);
1306 
1307   void sqrtss(XMMRegister dst, XMMRegister     src) { Assembler::sqrtss(dst, src); }
1308   void sqrtss(XMMRegister dst, Address         src) { Assembler::sqrtss(dst, src); }
1309   void sqrtss(XMMRegister dst, AddressLiteral  src, Register rscratch = noreg);
1310 
1311   void subsd(XMMRegister dst, XMMRegister    src) { Assembler::subsd(dst, src); }
1312   void subsd(XMMRegister dst, Address        src) { Assembler::subsd(dst, src); }
1313   void subsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1314 
1315   void subss(XMMRegister dst, XMMRegister    src) { Assembler::subss(dst, src); }
1316   void subss(XMMRegister dst, Address        src) { Assembler::subss(dst, src); }
1317   void subss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1318 
1319   void evucomish(XMMRegister dst, XMMRegister    src) { Assembler::evucomish(dst, src); }
1320   void evucomish(XMMRegister dst, Address        src) { Assembler::evucomish(dst, src); }
1321   void evucomish(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1322 
1323   void evucomxsh(XMMRegister dst, XMMRegister    src) { Assembler::evucomxsh(dst, src); }
1324   void evucomxsh(XMMRegister dst, Address        src) { Assembler::evucomxsh(dst, src); }
1325   void evucomxsh(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1326 
1327   void ucomiss(XMMRegister dst, XMMRegister    src) { Assembler::ucomiss(dst, src); }
1328   void ucomiss(XMMRegister dst, Address        src) { Assembler::ucomiss(dst, src); }
1329   void ucomiss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1330 
1331   void evucomxss(XMMRegister dst, XMMRegister    src) { Assembler::evucomxss(dst, src); }
1332   void evucomxss(XMMRegister dst, Address        src) { Assembler::evucomxss(dst, src); }
1333   void evucomxss(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1334 
1335   void ucomisd(XMMRegister dst, XMMRegister    src) { Assembler::ucomisd(dst, src); }
1336   void ucomisd(XMMRegister dst, Address        src) { Assembler::ucomisd(dst, src); }
1337   void ucomisd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1338 
1339   void evucomxsd(XMMRegister dst, XMMRegister    src) { Assembler::evucomxsd(dst, src); }
1340   void evucomxsd(XMMRegister dst, Address        src) { Assembler::evucomxsd(dst, src); }
1341   void evucomxsd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1342 
1343   // Bitwise Logical XOR of Packed Double-Precision Floating-Point Values
1344   void xorpd(XMMRegister dst, XMMRegister    src);
1345   void xorpd(XMMRegister dst, Address        src) { Assembler::xorpd(dst, src); }
1346   void xorpd(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1347 
1348   // Bitwise Logical XOR of Packed Single-Precision Floating-Point Values
1349   void xorps(XMMRegister dst, XMMRegister    src);
1350   void xorps(XMMRegister dst, Address        src) { Assembler::xorps(dst, src); }
1351   void xorps(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1352 
1353   // Shuffle Bytes
1354   void pshufb(XMMRegister dst, XMMRegister    src) { Assembler::pshufb(dst, src); }
1355   void pshufb(XMMRegister dst, Address        src) { Assembler::pshufb(dst, src); }
1356   void pshufb(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1357   // AVX 3-operands instructions
1358 
1359   void vaddsd(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vaddsd(dst, nds, src); }
1360   void vaddsd(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vaddsd(dst, nds, src); }
1361   void vaddsd(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1362 
1363   void vaddss(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vaddss(dst, nds, src); }
1364   void vaddss(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vaddss(dst, nds, src); }
1365   void vaddss(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1366 
1367   void vabsss(XMMRegister dst, XMMRegister nds, XMMRegister src, AddressLiteral negate_field, int vector_len, Register rscratch = noreg);
1368   void vabssd(XMMRegister dst, XMMRegister nds, XMMRegister src, AddressLiteral negate_field, int vector_len, Register rscratch = noreg);
1369 
1370   void vpaddb(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len);
1371   void vpaddb(XMMRegister dst, XMMRegister nds, Address        src, int vector_len);
1372   void vpaddb(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1373 
1374   void vpaddw(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1375   void vpaddw(XMMRegister dst, XMMRegister nds, Address     src, int vector_len);
1376 
1377   void vpaddd(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vpaddd(dst, nds, src, vector_len); }
1378   void vpaddd(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vpaddd(dst, nds, src, vector_len); }
1379   void vpaddd(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1380 
1381   void vpand(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vpand(dst, nds, src, vector_len); }
1382   void vpand(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vpand(dst, nds, src, vector_len); }
1383   void vpand(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1384 
1385   using Assembler::vpbroadcastd;
1386   void vpbroadcastd(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1387 
1388   using Assembler::vpbroadcastq;
1389   void vpbroadcastq(XMMRegister dst, AddressLiteral src, int vector_len, Register rscratch = noreg);
1390 
1391   void vpcmpeqb(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1392   void vpcmpeqb(XMMRegister dst, XMMRegister src1, Address src2, int vector_len);
1393 
1394   void vpcmpeqw(XMMRegister dst, XMMRegister nds, Address src, int vector_len);
1395   void vpcmpeqw(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1396   using Assembler::evpcmpeqd;
1397   void evpcmpeqd(KRegister kdst, KRegister mask, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1398 
1399   // Vector compares
1400   void evpcmpd(KRegister kdst, KRegister mask, XMMRegister nds, XMMRegister    src, int comparison, bool is_signed, int vector_len) {
1401     Assembler::evpcmpd(kdst, mask, nds, src, comparison, is_signed, vector_len);
1402   }
1403   void evpcmpd(KRegister kdst, KRegister mask, XMMRegister nds, AddressLiteral src, int comparison, bool is_signed, int vector_len, Register rscratch = noreg);
1404 
1405   void evpcmpq(KRegister kdst, KRegister mask, XMMRegister nds, XMMRegister    src, int comparison, bool is_signed, int vector_len) {
1406     Assembler::evpcmpq(kdst, mask, nds, src, comparison, is_signed, vector_len);
1407   }
1408   void evpcmpq(KRegister kdst, KRegister mask, XMMRegister nds, AddressLiteral src, int comparison, bool is_signed, int vector_len, Register rscratch = noreg);
1409 
1410   void evpcmpb(KRegister kdst, KRegister mask, XMMRegister nds, XMMRegister    src, int comparison, bool is_signed, int vector_len) {
1411     Assembler::evpcmpb(kdst, mask, nds, src, comparison, is_signed, vector_len);
1412   }
1413   void evpcmpb(KRegister kdst, KRegister mask, XMMRegister nds, AddressLiteral src, int comparison, bool is_signed, int vector_len, Register rscratch = noreg);
1414 
1415   void evpcmpw(KRegister kdst, KRegister mask, XMMRegister nds, XMMRegister    src, int comparison, bool is_signed, int vector_len) {
1416     Assembler::evpcmpw(kdst, mask, nds, src, comparison, is_signed, vector_len);
1417   }
1418   void evpcmpw(KRegister kdst, KRegister mask, XMMRegister nds, AddressLiteral src, int comparison, bool is_signed, int vector_len, Register rscratch = noreg);
1419 
1420   void evpbroadcast(BasicType type, XMMRegister dst, Register src, int vector_len);
1421 
1422   // Emit comparison instruction for the specified comparison predicate.
1423   void vpcmpCCW(XMMRegister dst, XMMRegister nds, XMMRegister src, XMMRegister xtmp, ComparisonPredicate cond, Width width, int vector_len);
1424   void vpcmpCC(XMMRegister dst, XMMRegister nds, XMMRegister src, int cond_encoding, Width width, int vector_len);
1425 
1426   void vpmovzxbw(XMMRegister dst, Address     src, int vector_len);
1427   void vpmovzxbw(XMMRegister dst, XMMRegister src, int vector_len) { Assembler::vpmovzxbw(dst, src, vector_len); }
1428 
1429   void vpmovmskb(Register dst, XMMRegister src, int vector_len = Assembler::AVX_256bit);
1430 
1431   void vpmullw(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1432   void vpmullw(XMMRegister dst, XMMRegister nds, Address     src, int vector_len);
1433 
1434   void vpmulld(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vpmulld(dst, nds, src, vector_len); }
1435   void vpmulld(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vpmulld(dst, nds, src, vector_len); }
1436   void vpmulld(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1437 
1438   void vpmuldq(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vpmuldq(dst, nds, src, vector_len); }
1439 
1440   void vpsubb(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1441   void vpsubb(XMMRegister dst, XMMRegister nds, Address     src, int vector_len);
1442 
1443   void vpsubw(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len);
1444   void vpsubw(XMMRegister dst, XMMRegister nds, Address     src, int vector_len);
1445 
1446   void vpsraw(XMMRegister dst, XMMRegister nds, XMMRegister shift, int vector_len);
1447   void vpsraw(XMMRegister dst, XMMRegister nds, int         shift, int vector_len);
1448 
1449   void evpsrad(XMMRegister dst, XMMRegister nds, XMMRegister shift, int vector_len);
1450   void evpsrad(XMMRegister dst, XMMRegister nds, int         shift, int vector_len);
1451 
1452   void evpsraq(XMMRegister dst, XMMRegister nds, XMMRegister shift, int vector_len);
1453   void evpsraq(XMMRegister dst, XMMRegister nds, int         shift, int vector_len);
1454 
1455   using Assembler::evpsllw;
1456   void evpsllw(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1457     if (!is_varshift) {
1458       Assembler::evpsllw(dst, mask, nds, src, merge, vector_len);
1459     } else {
1460       Assembler::evpsllvw(dst, mask, nds, src, merge, vector_len);
1461     }
1462   }
1463   void evpslld(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1464     if (!is_varshift) {
1465       Assembler::evpslld(dst, mask, nds, src, merge, vector_len);
1466     } else {
1467       Assembler::evpsllvd(dst, mask, nds, src, merge, vector_len);
1468     }
1469   }
1470   void evpsllq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1471     if (!is_varshift) {
1472       Assembler::evpsllq(dst, mask, nds, src, merge, vector_len);
1473     } else {
1474       Assembler::evpsllvq(dst, mask, nds, src, merge, vector_len);
1475     }
1476   }
1477   void evpsrlw(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1478     if (!is_varshift) {
1479       Assembler::evpsrlw(dst, mask, nds, src, merge, vector_len);
1480     } else {
1481       Assembler::evpsrlvw(dst, mask, nds, src, merge, vector_len);
1482     }
1483   }
1484   void evpsrld(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1485     if (!is_varshift) {
1486       Assembler::evpsrld(dst, mask, nds, src, merge, vector_len);
1487     } else {
1488       Assembler::evpsrlvd(dst, mask, nds, src, merge, vector_len);
1489     }
1490   }
1491 
1492   using Assembler::evpsrlq;
1493   void evpsrlq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1494     if (!is_varshift) {
1495       Assembler::evpsrlq(dst, mask, nds, src, merge, vector_len);
1496     } else {
1497       Assembler::evpsrlvq(dst, mask, nds, src, merge, vector_len);
1498     }
1499   }
1500   using Assembler::evpsraw;
1501   void evpsraw(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1502     if (!is_varshift) {
1503       Assembler::evpsraw(dst, mask, nds, src, merge, vector_len);
1504     } else {
1505       Assembler::evpsravw(dst, mask, nds, src, merge, vector_len);
1506     }
1507   }
1508   using Assembler::evpsrad;
1509   void evpsrad(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1510     if (!is_varshift) {
1511       Assembler::evpsrad(dst, mask, nds, src, merge, vector_len);
1512     } else {
1513       Assembler::evpsravd(dst, mask, nds, src, merge, vector_len);
1514     }
1515   }
1516   using Assembler::evpsraq;
1517   void evpsraq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
1518     if (!is_varshift) {
1519       Assembler::evpsraq(dst, mask, nds, src, merge, vector_len);
1520     } else {
1521       Assembler::evpsravq(dst, mask, nds, src, merge, vector_len);
1522     }
1523   }
1524 
1525   void evpmins(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1526   void evpmaxs(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1527   void evpmins(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1528   void evpmaxs(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1529 
1530   void evpminu(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1531   void evpmaxu(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1532   void evpminu(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1533   void evpmaxu(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1534 
1535   void vpsrlw(XMMRegister dst, XMMRegister nds, XMMRegister shift, int vector_len);
1536   void vpsrlw(XMMRegister dst, XMMRegister nds, int shift, int vector_len);
1537 
1538   void vpsllw(XMMRegister dst, XMMRegister nds, XMMRegister shift, int vector_len);
1539   void vpsllw(XMMRegister dst, XMMRegister nds, int shift, int vector_len);
1540 
1541   void vptest(XMMRegister dst, XMMRegister src);
1542   void vptest(XMMRegister dst, XMMRegister src, int vector_len) { Assembler::vptest(dst, src, vector_len); }
1543 
1544   void punpcklbw(XMMRegister dst, XMMRegister src);
1545   void punpcklbw(XMMRegister dst, Address src) { Assembler::punpcklbw(dst, src); }
1546 
1547   void pshufd(XMMRegister dst, Address src, int mode);
1548   void pshufd(XMMRegister dst, XMMRegister src, int mode) { Assembler::pshufd(dst, src, mode); }
1549 
1550   void pshuflw(XMMRegister dst, XMMRegister src, int mode);
1551   void pshuflw(XMMRegister dst, Address src, int mode) { Assembler::pshuflw(dst, src, mode); }
1552 
1553   void vandpd(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vandpd(dst, nds, src, vector_len); }
1554   void vandpd(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vandpd(dst, nds, src, vector_len); }
1555   void vandpd(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1556 
1557   void vandps(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vandps(dst, nds, src, vector_len); }
1558   void vandps(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vandps(dst, nds, src, vector_len); }
1559   void vandps(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1560 
1561   void evpord(XMMRegister dst, KRegister mask, XMMRegister nds, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1562 
1563   void vdivsd(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vdivsd(dst, nds, src); }
1564   void vdivsd(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vdivsd(dst, nds, src); }
1565   void vdivsd(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1566 
1567   void vdivss(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vdivss(dst, nds, src); }
1568   void vdivss(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vdivss(dst, nds, src); }
1569   void vdivss(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1570 
1571   void vmulsd(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vmulsd(dst, nds, src); }
1572   void vmulsd(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vmulsd(dst, nds, src); }
1573   void vmulsd(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1574 
1575   void vmulss(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vmulss(dst, nds, src); }
1576   void vmulss(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vmulss(dst, nds, src); }
1577   void vmulss(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1578 
1579   void vsubsd(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vsubsd(dst, nds, src); }
1580   void vsubsd(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vsubsd(dst, nds, src); }
1581   void vsubsd(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1582 
1583   void vsubss(XMMRegister dst, XMMRegister nds, XMMRegister    src) { Assembler::vsubss(dst, nds, src); }
1584   void vsubss(XMMRegister dst, XMMRegister nds, Address        src) { Assembler::vsubss(dst, nds, src); }
1585   void vsubss(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1586 
1587   void vnegatess(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1588   void vnegatesd(XMMRegister dst, XMMRegister nds, AddressLiteral src, Register rscratch = noreg);
1589 
1590   // AVX Vector instructions
1591 
1592   void vxorpd(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vxorpd(dst, nds, src, vector_len); }
1593   void vxorpd(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vxorpd(dst, nds, src, vector_len); }
1594   void vxorpd(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1595 
1596   void vxorps(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vxorps(dst, nds, src, vector_len); }
1597   void vxorps(XMMRegister dst, XMMRegister nds, Address        src, int vector_len) { Assembler::vxorps(dst, nds, src, vector_len); }
1598   void vxorps(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1599 
1600   void vpxor(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
1601     if (UseAVX > 1 || (vector_len < 1)) // vpxor 256 bit is available only in AVX2
1602       Assembler::vpxor(dst, nds, src, vector_len);
1603     else
1604       Assembler::vxorpd(dst, nds, src, vector_len);
1605   }
1606   void vpxor(XMMRegister dst, XMMRegister nds, Address src, int vector_len) {
1607     if (UseAVX > 1 || (vector_len < 1)) // vpxor 256 bit is available only in AVX2
1608       Assembler::vpxor(dst, nds, src, vector_len);
1609     else
1610       Assembler::vxorpd(dst, nds, src, vector_len);
1611   }
1612   void vpxor(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1613 
1614   // Simple version for AVX2 256bit vectors
1615   void vpxor(XMMRegister dst, XMMRegister src) {
1616     assert(UseAVX >= 2, "Should be at least AVX2");
1617     Assembler::vpxor(dst, dst, src, AVX_256bit);
1618   }
1619   void vpxor(XMMRegister dst, Address src) {
1620     assert(UseAVX >= 2, "Should be at least AVX2");
1621     Assembler::vpxor(dst, dst, src, AVX_256bit);
1622   }
1623 
1624   void vpermd(XMMRegister dst, XMMRegister nds, XMMRegister    src, int vector_len) { Assembler::vpermd(dst, nds, src, vector_len); }
1625   void vpermd(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1626 
1627   void vinserti128(XMMRegister dst, XMMRegister nds, XMMRegister src, uint8_t imm8) {
1628     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1629       Assembler::vinserti32x4(dst, nds, src, imm8);
1630     } else if (UseAVX > 1) {
1631       // vinserti128 is available only in AVX2
1632       Assembler::vinserti128(dst, nds, src, imm8);
1633     } else {
1634       Assembler::vinsertf128(dst, nds, src, imm8);
1635     }
1636   }
1637 
1638   void vinserti128(XMMRegister dst, XMMRegister nds, Address src, uint8_t imm8) {
1639     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1640       Assembler::vinserti32x4(dst, nds, src, imm8);
1641     } else if (UseAVX > 1) {
1642       // vinserti128 is available only in AVX2
1643       Assembler::vinserti128(dst, nds, src, imm8);
1644     } else {
1645       Assembler::vinsertf128(dst, nds, src, imm8);
1646     }
1647   }
1648 
1649   void vextracti128(XMMRegister dst, XMMRegister src, uint8_t imm8) {
1650     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1651       Assembler::vextracti32x4(dst, src, imm8);
1652     } else if (UseAVX > 1) {
1653       // vextracti128 is available only in AVX2
1654       Assembler::vextracti128(dst, src, imm8);
1655     } else {
1656       Assembler::vextractf128(dst, src, imm8);
1657     }
1658   }
1659 
1660   void vextracti128(Address dst, XMMRegister src, uint8_t imm8) {
1661     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1662       Assembler::vextracti32x4(dst, src, imm8);
1663     } else if (UseAVX > 1) {
1664       // vextracti128 is available only in AVX2
1665       Assembler::vextracti128(dst, src, imm8);
1666     } else {
1667       Assembler::vextractf128(dst, src, imm8);
1668     }
1669   }
1670 
1671   // 128bit copy to/from high 128 bits of 256bit (YMM) vector registers
1672   void vinserti128_high(XMMRegister dst, XMMRegister src) {
1673     vinserti128(dst, dst, src, 1);
1674   }
1675   void vinserti128_high(XMMRegister dst, Address src) {
1676     vinserti128(dst, dst, src, 1);
1677   }
1678   void vextracti128_high(XMMRegister dst, XMMRegister src) {
1679     vextracti128(dst, src, 1);
1680   }
1681   void vextracti128_high(Address dst, XMMRegister src) {
1682     vextracti128(dst, src, 1);
1683   }
1684 
1685   void vinsertf128_high(XMMRegister dst, XMMRegister src) {
1686     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1687       Assembler::vinsertf32x4(dst, dst, src, 1);
1688     } else {
1689       Assembler::vinsertf128(dst, dst, src, 1);
1690     }
1691   }
1692 
1693   void vinsertf128_high(XMMRegister dst, Address src) {
1694     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1695       Assembler::vinsertf32x4(dst, dst, src, 1);
1696     } else {
1697       Assembler::vinsertf128(dst, dst, src, 1);
1698     }
1699   }
1700 
1701   void vextractf128_high(XMMRegister dst, XMMRegister src) {
1702     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1703       Assembler::vextractf32x4(dst, src, 1);
1704     } else {
1705       Assembler::vextractf128(dst, src, 1);
1706     }
1707   }
1708 
1709   void vextractf128_high(Address dst, XMMRegister src) {
1710     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1711       Assembler::vextractf32x4(dst, src, 1);
1712     } else {
1713       Assembler::vextractf128(dst, src, 1);
1714     }
1715   }
1716 
1717   // 256bit copy to/from high 256 bits of 512bit (ZMM) vector registers
1718   void vinserti64x4_high(XMMRegister dst, XMMRegister src) {
1719     Assembler::vinserti64x4(dst, dst, src, 1);
1720   }
1721   void vinsertf64x4_high(XMMRegister dst, XMMRegister src) {
1722     Assembler::vinsertf64x4(dst, dst, src, 1);
1723   }
1724   void vextracti64x4_high(XMMRegister dst, XMMRegister src) {
1725     Assembler::vextracti64x4(dst, src, 1);
1726   }
1727   void vextractf64x4_high(XMMRegister dst, XMMRegister src) {
1728     Assembler::vextractf64x4(dst, src, 1);
1729   }
1730   void vextractf64x4_high(Address dst, XMMRegister src) {
1731     Assembler::vextractf64x4(dst, src, 1);
1732   }
1733   void vinsertf64x4_high(XMMRegister dst, Address src) {
1734     Assembler::vinsertf64x4(dst, dst, src, 1);
1735   }
1736 
1737   // 128bit copy to/from low 128 bits of 256bit (YMM) vector registers
1738   void vinserti128_low(XMMRegister dst, XMMRegister src) {
1739     vinserti128(dst, dst, src, 0);
1740   }
1741   void vinserti128_low(XMMRegister dst, Address src) {
1742     vinserti128(dst, dst, src, 0);
1743   }
1744   void vextracti128_low(XMMRegister dst, XMMRegister src) {
1745     vextracti128(dst, src, 0);
1746   }
1747   void vextracti128_low(Address dst, XMMRegister src) {
1748     vextracti128(dst, src, 0);
1749   }
1750 
1751   void vinsertf128_low(XMMRegister dst, XMMRegister src) {
1752     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1753       Assembler::vinsertf32x4(dst, dst, src, 0);
1754     } else {
1755       Assembler::vinsertf128(dst, dst, src, 0);
1756     }
1757   }
1758 
1759   void vinsertf128_low(XMMRegister dst, Address src) {
1760     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1761       Assembler::vinsertf32x4(dst, dst, src, 0);
1762     } else {
1763       Assembler::vinsertf128(dst, dst, src, 0);
1764     }
1765   }
1766 
1767   void vextractf128_low(XMMRegister dst, XMMRegister src) {
1768     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1769       Assembler::vextractf32x4(dst, src, 0);
1770     } else {
1771       Assembler::vextractf128(dst, src, 0);
1772     }
1773   }
1774 
1775   void vextractf128_low(Address dst, XMMRegister src) {
1776     if (UseAVX > 2 && VM_Version::supports_avx512novl()) {
1777       Assembler::vextractf32x4(dst, src, 0);
1778     } else {
1779       Assembler::vextractf128(dst, src, 0);
1780     }
1781   }
1782 
1783   // 256bit copy to/from low 256 bits of 512bit (ZMM) vector registers
1784   void vinserti64x4_low(XMMRegister dst, XMMRegister src) {
1785     Assembler::vinserti64x4(dst, dst, src, 0);
1786   }
1787   void vinsertf64x4_low(XMMRegister dst, XMMRegister src) {
1788     Assembler::vinsertf64x4(dst, dst, src, 0);
1789   }
1790   void vextracti64x4_low(XMMRegister dst, XMMRegister src) {
1791     Assembler::vextracti64x4(dst, src, 0);
1792   }
1793   void vextractf64x4_low(XMMRegister dst, XMMRegister src) {
1794     Assembler::vextractf64x4(dst, src, 0);
1795   }
1796   void vextractf64x4_low(Address dst, XMMRegister src) {
1797     Assembler::vextractf64x4(dst, src, 0);
1798   }
1799   void vinsertf64x4_low(XMMRegister dst, Address src) {
1800     Assembler::vinsertf64x4(dst, dst, src, 0);
1801   }
1802 
1803   // Carry-Less Multiplication Quadword
1804   void vpclmulldq(XMMRegister dst, XMMRegister nds, XMMRegister src) {
1805     // 0x00 - multiply lower 64 bits [0:63]
1806     Assembler::vpclmulqdq(dst, nds, src, 0x00);
1807   }
1808   void vpclmulhdq(XMMRegister dst, XMMRegister nds, XMMRegister src) {
1809     // 0x11 - multiply upper 64 bits [64:127]
1810     Assembler::vpclmulqdq(dst, nds, src, 0x11);
1811   }
1812   void vpclmullqhqdq(XMMRegister dst, XMMRegister nds, XMMRegister src) {
1813     // 0x10 - multiply nds[0:63] and src[64:127]
1814     Assembler::vpclmulqdq(dst, nds, src, 0x10);
1815   }
1816   void vpclmulhqlqdq(XMMRegister dst, XMMRegister nds, XMMRegister src) {
1817     //0x01 - multiply nds[64:127] and src[0:63]
1818     Assembler::vpclmulqdq(dst, nds, src, 0x01);
1819   }
1820 
1821   void evpclmulldq(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
1822     // 0x00 - multiply lower 64 bits [0:63]
1823     Assembler::evpclmulqdq(dst, nds, src, 0x00, vector_len);
1824   }
1825   void evpclmulhdq(XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len) {
1826     // 0x11 - multiply upper 64 bits [64:127]
1827     Assembler::evpclmulqdq(dst, nds, src, 0x11, vector_len);
1828   }
1829 
1830   // AVX-512 mask operations.
1831   void kand(BasicType etype, KRegister dst, KRegister src1, KRegister src2);
1832   void kor(BasicType type, KRegister dst, KRegister src1, KRegister src2);
1833   void knot(uint masklen, KRegister dst, KRegister src, KRegister ktmp = knoreg, Register rtmp = noreg);
1834   void kxor(BasicType type, KRegister dst, KRegister src1, KRegister src2);
1835   void kortest(uint masklen, KRegister src1, KRegister src2);
1836   void ktest(uint masklen, KRegister src1, KRegister src2);
1837 
1838   void evperm(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1839   void evperm(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1840 
1841   void evor(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1842   void evor(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1843 
1844   void evand(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1845   void evand(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1846 
1847   void evxor(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len);
1848   void evxor(BasicType type, XMMRegister dst, KRegister mask, XMMRegister nds, Address src, bool merge, int vector_len);
1849 
1850   void evrold(BasicType type, XMMRegister dst, KRegister mask, XMMRegister src, int shift, bool merge, int vlen_enc);
1851   void evrold(BasicType type, XMMRegister dst, KRegister mask, XMMRegister src1, XMMRegister src2, bool merge, int vlen_enc);
1852   void evrord(BasicType type, XMMRegister dst, KRegister mask, XMMRegister src, int shift, bool merge, int vlen_enc);
1853   void evrord(BasicType type, XMMRegister dst, KRegister mask, XMMRegister src1, XMMRegister src2, bool merge, int vlen_enc);
1854 
1855   using Assembler::evpandq;
1856   void evpandq(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1857 
1858   using Assembler::evpaddq;
1859   void evpaddq(XMMRegister dst, KRegister mask, XMMRegister nds, AddressLiteral src, bool merge, int vector_len, Register rscratch = noreg);
1860 
1861   using Assembler::evporq;
1862   void evporq(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1863 
1864   using Assembler::vpshufb;
1865   void vpshufb(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1866 
1867   using Assembler::vpor;
1868   void vpor(XMMRegister dst, XMMRegister nds, AddressLiteral src, int vector_len, Register rscratch = noreg);
1869 
1870   using Assembler::vpternlogq;
1871   void vpternlogq(XMMRegister dst, int imm8, XMMRegister src2, AddressLiteral src3, int vector_len, Register rscratch = noreg);
1872 
1873   void cmov32( Condition cc, Register dst, Address  src);
1874   void cmov32( Condition cc, Register dst, Register src);
1875 
1876   void cmov(   Condition cc, Register dst, Register src) { cmovptr(cc, dst, src); }
1877 
1878   void cmovptr(Condition cc, Register dst, Address  src) { cmovq(cc, dst, src); }
1879   void cmovptr(Condition cc, Register dst, Register src) { cmovq(cc, dst, src); }
1880 
1881   void movoop(Register dst, jobject obj);
1882   void movoop(Address  dst, jobject obj, Register rscratch);
1883 
1884   void mov_metadata(Register dst, Metadata* obj);
1885   void mov_metadata(Address  dst, Metadata* obj, Register rscratch);
1886 
1887   void mov64(Register dst, int64_t imm64);
1888   void mov64(Register dst, int64_t imm64, relocInfo::relocType rtype, int format);
1889 
1890   void movptr(Register     dst, Register       src);
1891   void movptr(Register     dst, Address        src);
1892   void movptr(Register     dst, AddressLiteral src);
1893   void movptr(Register     dst, ArrayAddress   src);
1894   void movptr(Register     dst, intptr_t       src);
1895   void movptr(Address      dst, Register       src);
1896   void movptr(Address      dst, int32_t        imm);
1897   void movptr(Address      dst, intptr_t       src, Register rscratch);
1898   void movptr(ArrayAddress dst, Register       src, Register rscratch);
1899 
1900   void movptr(Register dst, RegisterOrConstant src) {
1901     if (src.is_constant()) movptr(dst, src.as_constant());
1902     else                   movptr(dst, src.as_register());
1903   }
1904 
1905 
1906   // to avoid hiding movl
1907   void mov32(Register       dst, AddressLiteral src);
1908   void mov32(AddressLiteral dst, Register        src, Register rscratch = noreg);
1909 
1910   // Import other mov() methods from the parent class or else
1911   // they will be hidden by the following overriding declaration.
1912   using Assembler::movdl;
1913   void movdl(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1914 
1915   using Assembler::movq;
1916   void movq(XMMRegister dst, AddressLiteral src, Register rscratch = noreg);
1917 
1918   // Can push value or effective address
1919   void pushptr(AddressLiteral src, Register rscratch);
1920 
1921   void pushptr(Address src) { pushq(src); }
1922   void popptr(Address src) { popq(src); }
1923 
1924   void pushoop(jobject obj, Register rscratch);
1925   void pushklass(Metadata* obj, Register rscratch);
1926 
1927   // sign extend as need a l to ptr sized element
1928   void movl2ptr(Register dst, Address src) { movslq(dst, src); }
1929   void movl2ptr(Register dst, Register src) { movslq(dst, src); }
1930 
1931 
1932  public:
1933   // clear memory of size 'cnt' qwords, starting at 'base';
1934   // if 'is_large' is set, do not try to produce short loop
1935   void clear_mem(Register base, Register cnt, Register rtmp, XMMRegister xtmp, bool is_large, KRegister mask=knoreg);
1936 
1937   // clear memory initialization sequence for constant size;
1938   void clear_mem(Register base, int cnt, Register rtmp, XMMRegister xtmp, KRegister mask=knoreg);
1939 
1940   // clear memory of size 'cnt' qwords, starting at 'base' using XMM/YMM registers
1941   void xmm_clear_mem(Register base, Register cnt, Register rtmp, XMMRegister xtmp, KRegister mask=knoreg);
1942 
1943   // Fill primitive arrays
1944   void generate_fill(BasicType t, bool aligned,
1945                      Register to, Register value, Register count,
1946                      Register rtmp, XMMRegister xtmp);
1947 
1948   void encode_iso_array(Register src, Register dst, Register len,
1949                         XMMRegister tmp1, XMMRegister tmp2, XMMRegister tmp3,
1950                         XMMRegister tmp4, Register tmp5, Register result, bool ascii);
1951 
1952   void add2_with_carry(Register dest_hi, Register dest_lo, Register src1, Register src2);
1953   void multiply_64_x_64_loop(Register x, Register xstart, Register x_xstart,
1954                              Register y, Register y_idx, Register z,
1955                              Register carry, Register product,
1956                              Register idx, Register kdx);
1957   void multiply_add_128_x_128(Register x_xstart, Register y, Register z,
1958                               Register yz_idx, Register idx,
1959                               Register carry, Register product, int offset);
1960   void multiply_128_x_128_bmi2_loop(Register y, Register z,
1961                                     Register carry, Register carry2,
1962                                     Register idx, Register jdx,
1963                                     Register yz_idx1, Register yz_idx2,
1964                                     Register tmp, Register tmp3, Register tmp4);
1965   void multiply_128_x_128_loop(Register x_xstart, Register y, Register z,
1966                                Register yz_idx, Register idx, Register jdx,
1967                                Register carry, Register product,
1968                                Register carry2);
1969   void multiply_to_len(Register x, Register xlen, Register y, Register ylen, Register z, Register tmp0,
1970                        Register tmp1, Register tmp2, Register tmp3, Register tmp4, Register tmp5);
1971   void square_rshift(Register x, Register len, Register z, Register tmp1, Register tmp3,
1972                      Register tmp4, Register tmp5, Register rdxReg, Register raxReg);
1973   void multiply_add_64_bmi2(Register sum, Register op1, Register op2, Register carry,
1974                             Register tmp2);
1975   void multiply_add_64(Register sum, Register op1, Register op2, Register carry,
1976                        Register rdxReg, Register raxReg);
1977   void add_one_64(Register z, Register zlen, Register carry, Register tmp1);
1978   void lshift_by_1(Register x, Register len, Register z, Register zlen, Register tmp1, Register tmp2,
1979                        Register tmp3, Register tmp4);
1980   void square_to_len(Register x, Register len, Register z, Register zlen, Register tmp1, Register tmp2,
1981                      Register tmp3, Register tmp4, Register tmp5, Register rdxReg, Register raxReg);
1982 
1983   void mul_add_128_x_32_loop(Register out, Register in, Register offset, Register len, Register tmp1,
1984                Register tmp2, Register tmp3, Register tmp4, Register tmp5, Register rdxReg,
1985                Register raxReg);
1986   void mul_add(Register out, Register in, Register offset, Register len, Register k, Register tmp1,
1987                Register tmp2, Register tmp3, Register tmp4, Register tmp5, Register rdxReg,
1988                Register raxReg);
1989   void vectorized_mismatch(Register obja, Register objb, Register length, Register log2_array_indxscale,
1990                            Register result, Register tmp1, Register tmp2,
1991                            XMMRegister vec1, XMMRegister vec2, XMMRegister vec3);
1992 
1993   // CRC32 code for java.util.zip.CRC32::updateBytes() intrinsic.
1994   void update_byte_crc32(Register crc, Register val, Register table);
1995   void kernel_crc32(Register crc, Register buf, Register len, Register table, Register tmp);
1996 
1997   void kernel_crc32_avx512(Register crc, Register buf, Register len, Register table, Register tmp1, Register tmp2);
1998   void kernel_crc32_avx512_256B(Register crc, Register buf, Register len, Register key, Register pos,
1999                                 Register tmp1, Register tmp2, Label& L_barrett, Label& L_16B_reduction_loop,
2000                                 Label& L_get_last_two_xmms, Label& L_128_done, Label& L_cleanup);
2001 
2002   // CRC32C code for java.util.zip.CRC32C::updateBytes() intrinsic
2003   // Note on a naming convention:
2004   // Prefix w = register only used on a Westmere+ architecture
2005   // Prefix n = register only used on a Nehalem architecture
2006   void crc32c_ipl_alg4(Register in_out, uint32_t n,
2007                        Register tmp1, Register tmp2, Register tmp3);
2008   void crc32c_pclmulqdq(XMMRegister w_xtmp1,
2009                         Register in_out,
2010                         uint32_t const_or_pre_comp_const_index, bool is_pclmulqdq_supported,
2011                         XMMRegister w_xtmp2,
2012                         Register tmp1,
2013                         Register n_tmp2, Register n_tmp3);
2014   void crc32c_rec_alt2(uint32_t const_or_pre_comp_const_index_u1, uint32_t const_or_pre_comp_const_index_u2, bool is_pclmulqdq_supported, Register in_out, Register in1, Register in2,
2015                        XMMRegister w_xtmp1, XMMRegister w_xtmp2, XMMRegister w_xtmp3,
2016                        Register tmp1, Register tmp2,
2017                        Register n_tmp3);
2018   void crc32c_proc_chunk(uint32_t size, uint32_t const_or_pre_comp_const_index_u1, uint32_t const_or_pre_comp_const_index_u2, bool is_pclmulqdq_supported,
2019                          Register in_out1, Register in_out2, Register in_out3,
2020                          Register tmp1, Register tmp2, Register tmp3,
2021                          XMMRegister w_xtmp1, XMMRegister w_xtmp2, XMMRegister w_xtmp3,
2022                          Register tmp4, Register tmp5,
2023                          Register n_tmp6);
2024   void crc32c_ipl_alg2_alt2(Register in_out, Register in1, Register in2,
2025                             Register tmp1, Register tmp2, Register tmp3,
2026                             Register tmp4, Register tmp5, Register tmp6,
2027                             XMMRegister w_xtmp1, XMMRegister w_xtmp2, XMMRegister w_xtmp3,
2028                             bool is_pclmulqdq_supported);
2029   // Fold 128-bit data chunk
2030   void fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, Register buf, int offset);
2031   void fold_128bit_crc32(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, XMMRegister xbuf);
2032   // Fold 512-bit data chunk
2033   void fold512bit_crc32_avx512(XMMRegister xcrc, XMMRegister xK, XMMRegister xtmp, Register buf, Register pos, int offset);
2034   // Fold 8-bit data
2035   void fold_8bit_crc32(Register crc, Register table, Register tmp);
2036   void fold_8bit_crc32(XMMRegister crc, Register table, XMMRegister xtmp, Register tmp);
2037 
2038   // Compress char[] array to byte[].
2039   void char_array_compress(Register src, Register dst, Register len,
2040                            XMMRegister tmp1, XMMRegister tmp2, XMMRegister tmp3,
2041                            XMMRegister tmp4, Register tmp5, Register result,
2042                            KRegister mask1 = knoreg, KRegister mask2 = knoreg);
2043 
2044   // Inflate byte[] array to char[].
2045   void byte_array_inflate(Register src, Register dst, Register len,
2046                           XMMRegister tmp1, Register tmp2, KRegister mask = knoreg);
2047 
2048   void fill_masked(BasicType bt, Address dst, XMMRegister xmm, KRegister mask,
2049                    Register length, Register temp, int vec_enc);
2050 
2051   void fill64_masked(uint shift, Register dst, int disp,
2052                          XMMRegister xmm, KRegister mask, Register length,
2053                          Register temp, bool use64byteVector = false);
2054 
2055   void fill32_masked(uint shift, Register dst, int disp,
2056                          XMMRegister xmm, KRegister mask, Register length,
2057                          Register temp);
2058 
2059   void fill32(Address dst, XMMRegister xmm);
2060 
2061   void fill32(Register dst, int disp, XMMRegister xmm);
2062 
2063   void fill64(Address dst, XMMRegister xmm, bool use64byteVector = false);
2064 
2065   void fill64(Register dst, int dis, XMMRegister xmm, bool use64byteVector = false);
2066 
2067   void convert_f2i(Register dst, XMMRegister src);
2068   void convert_d2i(Register dst, XMMRegister src);
2069   void convert_f2l(Register dst, XMMRegister src);
2070   void convert_d2l(Register dst, XMMRegister src);
2071   void round_double(Register dst, XMMRegister src, Register rtmp, Register rcx);
2072   void round_float(Register dst, XMMRegister src, Register rtmp, Register rcx);
2073 
2074   void cache_wb(Address line);
2075   void cache_wbsync(bool is_pre);
2076 
2077 #ifdef COMPILER2
2078   void generate_fill_avx3(BasicType type, Register to, Register value,
2079                           Register count, Register rtmp, XMMRegister xtmp);
2080 #endif // COMPILER2
2081 
2082   void vallones(XMMRegister dst, int vector_len);
2083 
2084   void check_stack_alignment(Register sp, const char* msg, unsigned bias = 0, Register tmp = noreg);
2085 
2086   void fast_lock(Register basic_lock, Register obj, Register reg_rax, Register tmp, Label& slow);
2087   void fast_unlock(Register obj, Register reg_rax, Register tmp, Label& slow);
2088 
2089   void save_legacy_gprs();
2090   void restore_legacy_gprs();
2091   void load_aotrc_address(Register reg, address a);
2092   void setcc(Assembler::Condition comparison, Register dst);
2093 };
2094 
2095 #endif // CPU_X86_MACROASSEMBLER_X86_HPP