tcg/tcg.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu-common.h"
  25
  26 /* Target word size (must be identical to pointer size). */
  27 #if UINTPTR_MAX == UINT32_MAX
  28 # define TCG_TARGET_REG_BITS 32
  29 #elif UINTPTR_MAX == UINT64_MAX
  30 # define TCG_TARGET_REG_BITS 64
  31 #else
  32 # error Unknown pointer size for tcg target
  33 #endif
  34
  35 #if TCG_TARGET_REG_BITS == 32
  36 typedef int32_t tcg_target_long;
  37 typedef uint32_t tcg_target_ulong;
  38 #define TCG_PRIlx PRIx32
  39 #define TCG_PRIld PRId32
  40 #elif TCG_TARGET_REG_BITS == 64
  41 typedef int64_t tcg_target_long;
  42 typedef uint64_t tcg_target_ulong;
  43 #define TCG_PRIlx PRIx64
  44 #define TCG_PRIld PRId64
  45 #else
  46 #error unsupported
  47 #endif
  48
  49 #include "tcg-target.h"
  50 #include "tcg-runtime.h"
  51
  52 #if TCG_TARGET_NB_REGS <= 32
  53 typedef uint32_t TCGRegSet;
  54 #elif TCG_TARGET_NB_REGS <= 64
  55 typedef uint64_t TCGRegSet;
  56 #else
  57 #error unsupported
  58 #endif
  59
  60 /* Turn some undef macros into false macros.  */
  61 #if TCG_TARGET_REG_BITS == 32
  62 #define TCG_TARGET_HAS_div_i64          0
  63 #define TCG_TARGET_HAS_div2_i64         0
  64 #define TCG_TARGET_HAS_rot_i64          0
  65 #define TCG_TARGET_HAS_ext8s_i64        0
  66 #define TCG_TARGET_HAS_ext16s_i64       0
  67 #define TCG_TARGET_HAS_ext32s_i64       0
  68 #define TCG_TARGET_HAS_ext8u_i64        0
  69 #define TCG_TARGET_HAS_ext16u_i64       0
  70 #define TCG_TARGET_HAS_ext32u_i64       0
  71 #define TCG_TARGET_HAS_bswap16_i64      0
  72 #define TCG_TARGET_HAS_bswap32_i64      0
  73 #define TCG_TARGET_HAS_bswap64_i64      0
  74 #define TCG_TARGET_HAS_neg_i64          0
  75 #define TCG_TARGET_HAS_not_i64          0
  76 #define TCG_TARGET_HAS_andc_i64         0
  77 #define TCG_TARGET_HAS_orc_i64          0
  78 #define TCG_TARGET_HAS_eqv_i64          0
  79 #define TCG_TARGET_HAS_nand_i64         0
  80 #define TCG_TARGET_HAS_nor_i64          0
  81 #define TCG_TARGET_HAS_deposit_i64      0
  82 #define TCG_TARGET_HAS_movcond_i64      0
  83 #endif
  84
  85 #ifndef TCG_TARGET_deposit_i32_valid
  86 #define TCG_TARGET_deposit_i32_valid(ofs, len) 1
  87 #endif
  88 #ifndef TCG_TARGET_deposit_i64_valid
  89 #define TCG_TARGET_deposit_i64_valid(ofs, len) 1
  90 #endif
  91
  92 /* Only one of DIV or DIV2 should be defined.  */
  93 #if defined(TCG_TARGET_HAS_div_i32)
  94 #define TCG_TARGET_HAS_div2_i32         0
  95 #elif defined(TCG_TARGET_HAS_div2_i32)
  96 #define TCG_TARGET_HAS_div_i32          0
  97 #endif
  98 #if defined(TCG_TARGET_HAS_div_i64)
  99 #define TCG_TARGET_HAS_div2_i64         0
 100 #elif defined(TCG_TARGET_HAS_div2_i64)
 101 #define TCG_TARGET_HAS_div_i64          0
 102 #endif
 103
 104 typedef enum TCGOpcode {
 105 #define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
 106 #include "tcg-opc.h"
 107 #undef DEF
 108     NB_OPS,
 109 } TCGOpcode;
 110
 111 #define tcg_regset_clear(d) (d) = 0
 112 #define tcg_regset_set(d, s) (d) = (s)
 113 #define tcg_regset_set32(d, reg, val32) (d) |= (val32) << (reg)
 114 #define tcg_regset_set_reg(d, r) (d) |= 1L << (r)
 115 #define tcg_regset_reset_reg(d, r) (d) &= ~(1L << (r))
 116 #define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
 117 #define tcg_regset_or(d, a, b) (d) = (a) | (b)
 118 #define tcg_regset_and(d, a, b) (d) = (a) & (b)
 119 #define tcg_regset_andnot(d, a, b) (d) = (a) & ~(b)
 120 #define tcg_regset_not(d, a) (d) = ~(a)
 121
 122 typedef struct TCGRelocation {
 123     struct TCGRelocation *next;
 124     int type;
 125     uint8_t *ptr;
 126     tcg_target_long addend;
 127 } TCGRelocation;
 128
 129 typedef struct TCGLabel {
 130     int has_value;
 131     union {
 132         tcg_target_ulong value;
 133         TCGRelocation *first_reloc;
 134     } u;
 135 } TCGLabel;
 136
 137 typedef struct TCGPool {
 138     struct TCGPool *next;
 139     int size;
 140     uint8_t data[0] __attribute__ ((aligned));
 141 } TCGPool;
 142
 143 #define TCG_POOL_CHUNK_SIZE 32768
 144
 145 #define TCG_MAX_LABELS 512
 146
 147 #define TCG_MAX_TEMPS 512
 148
 149 /* when the size of the arguments of a called function is smaller than
 150    this value, they are statically allocated in the TB stack frame */
 151 #define TCG_STATIC_CALL_ARGS_SIZE 128
 152
 153 typedef enum TCGType {
 154     TCG_TYPE_I32,
 155     TCG_TYPE_I64,
 156     TCG_TYPE_COUNT, /* number of different types */
 157
 158     /* An alias for the size of the host register.  */
 159 #if TCG_TARGET_REG_BITS == 32
 160     TCG_TYPE_REG = TCG_TYPE_I32,
 161 #else
 162     TCG_TYPE_REG = TCG_TYPE_I64,
 163 #endif
 164
 165     /* An alias for the size of the native pointer.  We don't currently
 166        support any hosts with 64-bit registers and 32-bit pointers.  */
 167     TCG_TYPE_PTR = TCG_TYPE_REG,
 168
 169     /* An alias for the size of the target "long", aka register.  */
 170 #if TARGET_LONG_BITS == 64
 171     TCG_TYPE_TL = TCG_TYPE_I64,
 172 #else
 173     TCG_TYPE_TL = TCG_TYPE_I32,
 174 #endif
 175 } TCGType;
 176
 177 typedef tcg_target_ulong TCGArg;
 178
 179 /* Define a type and accessor macros for variables.  Using a struct is
 180    nice because it gives some level of type safely.  Ideally the compiler
 181    be able to see through all this.  However in practice this is not true,
 182    especially on targets with braindamaged ABIs (e.g. i386).
 183    We use plain int by default to avoid this runtime overhead.
 184    Users of tcg_gen_* don't need to know about any of this, and should
 185    treat TCGv as an opaque type.
 186    In addition we do typechecking for different types of variables.  TCGv_i32
 187    and TCGv_i64 are 32/64-bit variables respectively.  TCGv and TCGv_ptr
 188    are aliases for target_ulong and host pointer sized values respectively.
 189  */
 190
 191 #ifdef CONFIG_DEBUG_TCG
 192 #define DEBUG_TCGV 1
 193 #endif
 194
 195 #ifdef DEBUG_TCGV
 196
 197 typedef struct
 198 {
 199     int i32;
 200 } TCGv_i32;
 201
 202 typedef struct
 203 {
 204     int i64;
 205 } TCGv_i64;
 206
 207 typedef struct {
 208     int iptr;
 209 } TCGv_ptr;
 210
 211 #define MAKE_TCGV_I32(i) __extension__                  \
 212     ({ TCGv_i32 make_tcgv_tmp = {i}; make_tcgv_tmp;})
 213 #define MAKE_TCGV_I64(i) __extension__                  \
 214     ({ TCGv_i64 make_tcgv_tmp = {i}; make_tcgv_tmp;})
 215 #define MAKE_TCGV_PTR(i) __extension__                  \
 216     ({ TCGv_ptr make_tcgv_tmp = {i}; make_tcgv_tmp; })
 217 #define GET_TCGV_I32(t) ((t).i32)
 218 #define GET_TCGV_I64(t) ((t).i64)
 219 #define GET_TCGV_PTR(t) ((t).iptr)
 220 #if TCG_TARGET_REG_BITS == 32
 221 #define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t))
 222 #define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1)
 223 #endif
 224
 225 #else /* !DEBUG_TCGV */
 226
 227 typedef int TCGv_i32;
 228 typedef int TCGv_i64;
 229 #if TCG_TARGET_REG_BITS == 32
 230 #define TCGv_ptr TCGv_i32
 231 #else
 232 #define TCGv_ptr TCGv_i64
 233 #endif
 234 #define MAKE_TCGV_I32(x) (x)
 235 #define MAKE_TCGV_I64(x) (x)
 236 #define MAKE_TCGV_PTR(x) (x)
 237 #define GET_TCGV_I32(t) (t)
 238 #define GET_TCGV_I64(t) (t)
 239 #define GET_TCGV_PTR(t) (t)
 240
 241 #if TCG_TARGET_REG_BITS == 32
 242 #define TCGV_LOW(t) (t)
 243 #define TCGV_HIGH(t) ((t) + 1)
 244 #endif
 245
 246 #endif /* DEBUG_TCGV */
 247
 248 #define TCGV_EQUAL_I32(a, b) (GET_TCGV_I32(a) == GET_TCGV_I32(b))
 249 #define TCGV_EQUAL_I64(a, b) (GET_TCGV_I64(a) == GET_TCGV_I64(b))
 250
 251 /* Dummy definition to avoid compiler warnings.  */
 252 #define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
 253 #define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
 254
 255 /* call flags */
 256 /* A pure function only reads its arguments and TCG global variables
 257    and cannot raise exceptions. Hence a call to a pure function can be
 258    safely suppressed if the return value is not used. */
 259 #define TCG_CALL_PURE           0x0010
 260 /* A const function only reads its arguments and does not use TCG
 261    global variables. Hence a call to such a function does not
 262    save TCG global variables back to their canonical location. */
 263 #define TCG_CALL_CONST          0x0020
 264
 265 /* used to align parameters */
 266 #define TCG_CALL_DUMMY_TCGV     MAKE_TCGV_I32(-1)
 267 #define TCG_CALL_DUMMY_ARG      ((TCGArg)(-1))
 268
 269 typedef enum {
 270     TCG_COND_EQ,
 271     TCG_COND_NE,
 272     TCG_COND_LT,
 273     TCG_COND_GE,
 274     TCG_COND_LE,
 275     TCG_COND_GT,
 276     /* unsigned */
 277     TCG_COND_LTU,
 278     TCG_COND_GEU,
 279     TCG_COND_LEU,
 280     TCG_COND_GTU,
 281 } TCGCond;
 282
 283 /* Invert the sense of the comparison.  */
 284 static inline TCGCond tcg_invert_cond(TCGCond c)
 285 {
 286     return (TCGCond)(c ^ 1);
 287 }
 288
 289 /* Swap the operands in a comparison.  */
 290 static inline TCGCond tcg_swap_cond(TCGCond c)
 291 {
 292     int mask = (c < TCG_COND_LT ? 0 : c < TCG_COND_LTU ? 7 : 15);
 293     return (TCGCond)(c ^ mask);
 294 }
 295
 296 static inline TCGCond tcg_unsigned_cond(TCGCond c)
 297 {
 298     return (c >= TCG_COND_LT && c <= TCG_COND_GT ? c + 4 : c);
 299 }
 300
 301 #define TEMP_VAL_DEAD  0
 302 #define TEMP_VAL_REG   1
 303 #define TEMP_VAL_MEM   2
 304 #define TEMP_VAL_CONST 3
 305
 306 /* XXX: optimize memory layout */
 307 typedef struct TCGTemp {
 308     TCGType base_type;
 309     TCGType type;
 310     int val_type;
 311     int reg;
 312     tcg_target_long val;
 313     int mem_reg;
 314     tcg_target_long mem_offset;
 315     unsigned int fixed_reg:1;
 316     unsigned int mem_coherent:1;
 317     unsigned int mem_allocated:1;
 318     unsigned int temp_local:1; /* If true, the temp is saved across
 319                                   basic blocks. Otherwise, it is not
 320                                   preserved across basic blocks. */
 321     unsigned int temp_allocated:1; /* never used for code gen */
 322     /* index of next free temp of same base type, -1 if end */
 323     int next_free_temp;
 324     const char *name;
 325 } TCGTemp;
 326
 327 typedef struct TCGHelperInfo {
 328     tcg_target_ulong func;
 329     const char *name;
 330 } TCGHelperInfo;
 331
 332 typedef struct TCGContext TCGContext;
 333
 334 struct TCGContext {
 335     uint8_t *pool_cur, *pool_end;
 336     TCGPool *pool_first, *pool_current, *pool_first_large;
 337     TCGLabel *labels;
 338     int nb_labels;
 339     TCGTemp *temps; /* globals first, temps after */
 340     int nb_globals;
 341     int nb_temps;
 342     /* index of free temps, -1 if none */
 343     int first_free_temp[TCG_TYPE_COUNT * 2];
 344
 345     /* goto_tb support */
 346     uint8_t *code_buf;
 347     uintptr_t *tb_next;
 348     uint16_t *tb_next_offset;
 349     uint16_t *tb_jmp_offset; /* != NULL if USE_DIRECT_JUMP */
 350
 351     /* liveness analysis */
 352     uint16_t *op_dead_args; /* for each operation, each bit tells if the
 353                                corresponding argument is dead */
 354
 355     /* tells in which temporary a given register is. It does not take
 356        into account fixed registers */
 357     int reg_to_temp[TCG_TARGET_NB_REGS];
 358     TCGRegSet reserved_regs;
 359     tcg_target_long current_frame_offset;
 360     tcg_target_long frame_start;
 361     tcg_target_long frame_end;
 362     int frame_reg;
 363
 364     uint8_t *code_ptr;
 365     TCGTemp static_temps[TCG_MAX_TEMPS];
 366
 367     TCGHelperInfo *helpers;
 368     int nb_helpers;
 369     int allocated_helpers;
 370     int helpers_sorted;
 371
 372 #ifdef CONFIG_PROFILER
 373     /* profiling info */
 374     int64_t tb_count1;
 375     int64_t tb_count;
 376     int64_t op_count; /* total insn count */
 377     int op_count_max; /* max insn per TB */
 378     int64_t temp_count;
 379     int temp_count_max;
 380     int64_t del_op_count;
 381     int64_t code_in_len;
 382     int64_t code_out_len;
 383     int64_t interm_time;
 384     int64_t code_time;
 385     int64_t la_time;
 386     int64_t opt_time;
 387     int64_t restore_count;
 388     int64_t restore_time;
 389 #endif
 390
 391 #ifdef CONFIG_DEBUG_TCG
 392     int temps_in_use;
 393     int goto_tb_issue_mask;
 394 #endif
 395 };
 396
 397 extern TCGContext tcg_ctx;
 398 extern uint16_t *gen_opc_ptr;
 399 extern TCGArg *gen_opparam_ptr;
 400 extern uint16_t gen_opc_buf[];
 401 extern TCGArg gen_opparam_buf[];
 402
 403 /* pool based memory allocation */
 404
 405 void *tcg_malloc_internal(TCGContext *s, int size);
 406 void tcg_pool_reset(TCGContext *s);
 407 void tcg_pool_delete(TCGContext *s);
 408
 409 static inline void *tcg_malloc(int size)
 410 {
 411     TCGContext *s = &tcg_ctx;
 412     uint8_t *ptr, *ptr_end;
 413     size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1);
 414     ptr = s->pool_cur;
 415     ptr_end = ptr + size;
 416     if (unlikely(ptr_end > s->pool_end)) {
 417         return tcg_malloc_internal(&tcg_ctx, size);
 418     } else {
 419         s->pool_cur = ptr_end;
 420         return ptr;
 421     }
 422 }
 423
 424 void tcg_context_init(TCGContext *s);
 425 void tcg_prologue_init(TCGContext *s);
 426 void tcg_func_start(TCGContext *s);
 427
 428 int tcg_gen_code(TCGContext *s, uint8_t *gen_code_buf);
 429 int tcg_gen_code_search_pc(TCGContext *s, uint8_t *gen_code_buf, long offset);
 430
 431 void tcg_set_frame(TCGContext *s, int reg,
 432                    tcg_target_long start, tcg_target_long size);
 433
 434 TCGv_i32 tcg_global_reg_new_i32(int reg, const char *name);
 435 TCGv_i32 tcg_global_mem_new_i32(int reg, tcg_target_long offset,
 436                                 const char *name);
 437 TCGv_i32 tcg_temp_new_internal_i32(int temp_local);
 438 static inline TCGv_i32 tcg_temp_new_i32(void)
 439 {
 440     return tcg_temp_new_internal_i32(0);
 441 }
 442 static inline TCGv_i32 tcg_temp_local_new_i32(void)
 443 {
 444     return tcg_temp_new_internal_i32(1);
 445 }
 446 void tcg_temp_free_i32(TCGv_i32 arg);
 447 char *tcg_get_arg_str_i32(TCGContext *s, char *buf, int buf_size, TCGv_i32 arg);
 448
 449 TCGv_i64 tcg_global_reg_new_i64(int reg, const char *name);
 450 TCGv_i64 tcg_global_mem_new_i64(int reg, tcg_target_long offset,
 451                                 const char *name);
 452 TCGv_i64 tcg_temp_new_internal_i64(int temp_local);
 453 static inline TCGv_i64 tcg_temp_new_i64(void)
 454 {
 455     return tcg_temp_new_internal_i64(0);
 456 }
 457 static inline TCGv_i64 tcg_temp_local_new_i64(void)
 458 {
 459     return tcg_temp_new_internal_i64(1);
 460 }
 461 void tcg_temp_free_i64(TCGv_i64 arg);
 462 char *tcg_get_arg_str_i64(TCGContext *s, char *buf, int buf_size, TCGv_i64 arg);
 463
 464 #if defined(CONFIG_DEBUG_TCG)
 465 /* If you call tcg_clear_temp_count() at the start of a section of
 466  * code which is not supposed to leak any TCG temporaries, then
 467  * calling tcg_check_temp_count() at the end of the section will
 468  * return 1 if the section did in fact leak a temporary.
 469  */
 470 void tcg_clear_temp_count(void);
 471 int tcg_check_temp_count(void);
 472 #else
 473 #define tcg_clear_temp_count() do { } while (0)
 474 #define tcg_check_temp_count() 0
 475 #endif
 476
 477 void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf);
 478
 479 #define TCG_CT_ALIAS  0x80
 480 #define TCG_CT_IALIAS 0x40
 481 #define TCG_CT_REG    0x01
 482 #define TCG_CT_CONST  0x02 /* any constant of register size */
 483
 484 typedef struct TCGArgConstraint {
 485     uint16_t ct;
 486     uint8_t alias_index;
 487     union {
 488         TCGRegSet regs;
 489     } u;
 490 } TCGArgConstraint;
 491
 492 #define TCG_MAX_OP_ARGS 16
 493
 494 /* Bits for TCGOpDef->flags, 8 bits available.  */
 495 enum {
 496     /* Instruction defines the end of a basic block.  */
 497     TCG_OPF_BB_END       = 0x01,
 498     /* Instruction clobbers call registers and potentially update globals.  */
 499     TCG_OPF_CALL_CLOBBER = 0x02,
 500     /* Instruction has side effects: it cannot be removed
 501        if its outputs are not used.  */
 502     TCG_OPF_SIDE_EFFECTS = 0x04,
 503     /* Instruction operands are 64-bits (otherwise 32-bits).  */
 504     TCG_OPF_64BIT        = 0x08,
 505     /* Instruction is optional and not implemented by the host.  */
 506     TCG_OPF_NOT_PRESENT  = 0x10,
 507 };
 508
 509 typedef struct TCGOpDef {
 510     const char *name;
 511     uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
 512     uint8_t flags;
 513     TCGArgConstraint *args_ct;
 514     int *sorted_args;
 515 #if defined(CONFIG_DEBUG_TCG)
 516     int used;
 517 #endif
 518 } TCGOpDef;
 519
 520 extern TCGOpDef tcg_op_defs[];
 521 extern const size_t tcg_op_defs_max;
 522
 523 typedef struct TCGTargetOpDef {
 524     TCGOpcode op;
 525     const char *args_ct_str[TCG_MAX_OP_ARGS];
 526 } TCGTargetOpDef;
 527
 528 #define tcg_abort() \
 529 do {\
 530     fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
 531     abort();\
 532 } while (0)
 533
 534 #ifdef CONFIG_DEBUG_TCG
 535 # define tcg_debug_assert(X) do { assert(X); } while (0)
 536 #elif QEMU_GNUC_PREREQ(4, 5)
 537 # define tcg_debug_assert(X) \
 538     do { if (!(X)) { __builtin_unreachable(); } } while (0)
 539 #else
 540 # define tcg_debug_assert(X) do { (void)(X); } while (0)
 541 #endif
 542
 543 void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);
 544
 545 #if TCG_TARGET_REG_BITS == 32
 546 #define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I32(n))
 547 #define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I32(GET_TCGV_PTR(n))
 548
 549 #define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i32((tcg_target_long)(V)))
 550 #define tcg_global_reg_new_ptr(R, N) \
 551     TCGV_NAT_TO_PTR(tcg_global_reg_new_i32((R), (N)))
 552 #define tcg_global_mem_new_ptr(R, O, N) \
 553     TCGV_NAT_TO_PTR(tcg_global_mem_new_i32((R), (O), (N)))
 554 #define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i32())
 555 #define tcg_temp_free_ptr(T) tcg_temp_free_i32(TCGV_PTR_TO_NAT(T))
 556 #else
 557 #define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I64(n))
 558 #define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I64(GET_TCGV_PTR(n))
 559
 560 #define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i64((tcg_target_long)(V)))
 561 #define tcg_global_reg_new_ptr(R, N) \
 562     TCGV_NAT_TO_PTR(tcg_global_reg_new_i64((R), (N)))
 563 #define tcg_global_mem_new_ptr(R, O, N) \
 564     TCGV_NAT_TO_PTR(tcg_global_mem_new_i64((R), (O), (N)))
 565 #define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i64())
 566 #define tcg_temp_free_ptr(T) tcg_temp_free_i64(TCGV_PTR_TO_NAT(T))
 567 #endif
 568
 569 void tcg_gen_callN(TCGContext *s, TCGv_ptr func, unsigned int flags,
 570                    int sizemask, TCGArg ret, int nargs, TCGArg *args);
 571
 572 void tcg_gen_shifti_i64(TCGv_i64 ret, TCGv_i64 arg1,
 573                         int c, int right, int arith);
 574
 575 TCGArg *tcg_optimize(TCGContext *s, uint16_t *tcg_opc_ptr, TCGArg *args,
 576                      TCGOpDef *tcg_op_def);
 577
 578 /* only used for debugging purposes */
 579 void tcg_register_helper(void *func, const char *name);
 580 const char *tcg_helper_get_name(TCGContext *s, void *func);
 581 void tcg_dump_ops(TCGContext *s);
 582
 583 void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf);
 584 TCGv_i32 tcg_const_i32(int32_t val);
 585 TCGv_i64 tcg_const_i64(int64_t val);
 586 TCGv_i32 tcg_const_local_i32(int32_t val);
 587 TCGv_i64 tcg_const_local_i64(int64_t val);
 588
 589 extern uint8_t code_gen_prologue[];
 590
 591 /* TCG targets may use a different definition of tcg_qemu_tb_exec. */
 592 #if !defined(tcg_qemu_tb_exec)
 593 # define tcg_qemu_tb_exec(env, tb_ptr) \
 594     ((tcg_target_ulong (*)(void *, void *))code_gen_prologue)(env, tb_ptr)
 595 #endif
 596
 597 void tcg_register_jit(void *buf, size_t buf_size);