2 * Tiny Code Generator for QEMU
4 * Copyright (c) 2008 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
28 #include "qemu-common.h"
30 #include "exec/tb-context.h"
31 #include "qemu/bitops.h"
32 #include "qemu/queue.h"
34 #include "tcg-target.h"
35 #include "qemu/int128.h"
37 /* XXX: make safe guess about sizes */
38 #define MAX_OP_PER_INSTR 266
40 #if HOST_LONG_BITS == 32
41 #define MAX_OPC_PARAM_PER_ARG 2
43 #define MAX_OPC_PARAM_PER_ARG 1
45 #define MAX_OPC_PARAM_IARGS 6
46 #define MAX_OPC_PARAM_OARGS 1
47 #define MAX_OPC_PARAM_ARGS (MAX_OPC_PARAM_IARGS + MAX_OPC_PARAM_OARGS)
49 /* A Call op needs up to 4 + 2N parameters on 32-bit archs,
50 * and up to 4 + N parameters on 64-bit archs
51 * (N = number of input arguments + output arguments). */
52 #define MAX_OPC_PARAM (4 + (MAX_OPC_PARAM_PER_ARG * MAX_OPC_PARAM_ARGS))
54 #define CPU_TEMP_BUF_NLONGS 128
56 /* Default target word size to pointer size. */
57 #ifndef TCG_TARGET_REG_BITS
58 # if UINTPTR_MAX == UINT32_MAX
59 # define TCG_TARGET_REG_BITS 32
60 # elif UINTPTR_MAX == UINT64_MAX
61 # define TCG_TARGET_REG_BITS 64
63 # error Unknown pointer size for tcg target
67 #if TCG_TARGET_REG_BITS == 32
68 typedef int32_t tcg_target_long
;
69 typedef uint32_t tcg_target_ulong
;
70 #define TCG_PRIlx PRIx32
71 #define TCG_PRIld PRId32
72 #elif TCG_TARGET_REG_BITS == 64
73 typedef int64_t tcg_target_long
;
74 typedef uint64_t tcg_target_ulong
;
75 #define TCG_PRIlx PRIx64
76 #define TCG_PRIld PRId64
81 /* Oversized TCG guests make things like MTTCG hard
82 * as we can't use atomics for cputlb updates.
84 #if TARGET_LONG_BITS > TCG_TARGET_REG_BITS
85 #define TCG_OVERSIZED_GUEST 1
87 #define TCG_OVERSIZED_GUEST 0
90 #if TCG_TARGET_NB_REGS <= 32
91 typedef uint32_t TCGRegSet
;
92 #elif TCG_TARGET_NB_REGS <= 64
93 typedef uint64_t TCGRegSet
;
98 #if TCG_TARGET_REG_BITS == 32
99 /* Turn some undef macros into false macros. */
100 #define TCG_TARGET_HAS_extrl_i64_i32 0
101 #define TCG_TARGET_HAS_extrh_i64_i32 0
102 #define TCG_TARGET_HAS_div_i64 0
103 #define TCG_TARGET_HAS_rem_i64 0
104 #define TCG_TARGET_HAS_div2_i64 0
105 #define TCG_TARGET_HAS_rot_i64 0
106 #define TCG_TARGET_HAS_ext8s_i64 0
107 #define TCG_TARGET_HAS_ext16s_i64 0
108 #define TCG_TARGET_HAS_ext32s_i64 0
109 #define TCG_TARGET_HAS_ext8u_i64 0
110 #define TCG_TARGET_HAS_ext16u_i64 0
111 #define TCG_TARGET_HAS_ext32u_i64 0
112 #define TCG_TARGET_HAS_bswap16_i64 0
113 #define TCG_TARGET_HAS_bswap32_i64 0
114 #define TCG_TARGET_HAS_bswap64_i64 0
115 #define TCG_TARGET_HAS_neg_i64 0
116 #define TCG_TARGET_HAS_not_i64 0
117 #define TCG_TARGET_HAS_andc_i64 0
118 #define TCG_TARGET_HAS_orc_i64 0
119 #define TCG_TARGET_HAS_eqv_i64 0
120 #define TCG_TARGET_HAS_nand_i64 0
121 #define TCG_TARGET_HAS_nor_i64 0
122 #define TCG_TARGET_HAS_clz_i64 0
123 #define TCG_TARGET_HAS_ctz_i64 0
124 #define TCG_TARGET_HAS_ctpop_i64 0
125 #define TCG_TARGET_HAS_deposit_i64 0
126 #define TCG_TARGET_HAS_extract_i64 0
127 #define TCG_TARGET_HAS_sextract_i64 0
128 #define TCG_TARGET_HAS_extract2_i64 0
129 #define TCG_TARGET_HAS_movcond_i64 0
130 #define TCG_TARGET_HAS_add2_i64 0
131 #define TCG_TARGET_HAS_sub2_i64 0
132 #define TCG_TARGET_HAS_mulu2_i64 0
133 #define TCG_TARGET_HAS_muls2_i64 0
134 #define TCG_TARGET_HAS_muluh_i64 0
135 #define TCG_TARGET_HAS_mulsh_i64 0
136 /* Turn some undef macros into true macros. */
137 #define TCG_TARGET_HAS_add2_i32 1
138 #define TCG_TARGET_HAS_sub2_i32 1
141 #ifndef TCG_TARGET_deposit_i32_valid
142 #define TCG_TARGET_deposit_i32_valid(ofs, len) 1
144 #ifndef TCG_TARGET_deposit_i64_valid
145 #define TCG_TARGET_deposit_i64_valid(ofs, len) 1
147 #ifndef TCG_TARGET_extract_i32_valid
148 #define TCG_TARGET_extract_i32_valid(ofs, len) 1
150 #ifndef TCG_TARGET_extract_i64_valid
151 #define TCG_TARGET_extract_i64_valid(ofs, len) 1
154 /* Only one of DIV or DIV2 should be defined. */
155 #if defined(TCG_TARGET_HAS_div_i32)
156 #define TCG_TARGET_HAS_div2_i32 0
157 #elif defined(TCG_TARGET_HAS_div2_i32)
158 #define TCG_TARGET_HAS_div_i32 0
159 #define TCG_TARGET_HAS_rem_i32 0
161 #if defined(TCG_TARGET_HAS_div_i64)
162 #define TCG_TARGET_HAS_div2_i64 0
163 #elif defined(TCG_TARGET_HAS_div2_i64)
164 #define TCG_TARGET_HAS_div_i64 0
165 #define TCG_TARGET_HAS_rem_i64 0
168 /* For 32-bit targets, some sort of unsigned widening multiply is required. */
169 #if TCG_TARGET_REG_BITS == 32 \
170 && !(defined(TCG_TARGET_HAS_mulu2_i32) \
171 || defined(TCG_TARGET_HAS_muluh_i32))
172 # error "Missing unsigned widening multiply"
175 #if !defined(TCG_TARGET_HAS_v64) \
176 && !defined(TCG_TARGET_HAS_v128) \
177 && !defined(TCG_TARGET_HAS_v256)
178 #define TCG_TARGET_MAYBE_vec 0
179 #define TCG_TARGET_HAS_abs_vec 0
180 #define TCG_TARGET_HAS_neg_vec 0
181 #define TCG_TARGET_HAS_not_vec 0
182 #define TCG_TARGET_HAS_andc_vec 0
183 #define TCG_TARGET_HAS_orc_vec 0
184 #define TCG_TARGET_HAS_shi_vec 0
185 #define TCG_TARGET_HAS_shs_vec 0
186 #define TCG_TARGET_HAS_shv_vec 0
187 #define TCG_TARGET_HAS_mul_vec 0
188 #define TCG_TARGET_HAS_sat_vec 0
189 #define TCG_TARGET_HAS_minmax_vec 0
191 #define TCG_TARGET_MAYBE_vec 1
193 #ifndef TCG_TARGET_HAS_v64
194 #define TCG_TARGET_HAS_v64 0
196 #ifndef TCG_TARGET_HAS_v128
197 #define TCG_TARGET_HAS_v128 0
199 #ifndef TCG_TARGET_HAS_v256
200 #define TCG_TARGET_HAS_v256 0
203 #ifndef TARGET_INSN_START_EXTRA_WORDS
204 # define TARGET_INSN_START_WORDS 1
206 # define TARGET_INSN_START_WORDS (1 + TARGET_INSN_START_EXTRA_WORDS)
209 typedef enum TCGOpcode
{
210 #define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
216 #define tcg_regset_set_reg(d, r) ((d) |= (TCGRegSet)1 << (r))
217 #define tcg_regset_reset_reg(d, r) ((d) &= ~((TCGRegSet)1 << (r)))
218 #define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
220 #ifndef TCG_TARGET_INSN_UNIT_SIZE
221 # error "Missing TCG_TARGET_INSN_UNIT_SIZE"
222 #elif TCG_TARGET_INSN_UNIT_SIZE == 1
223 typedef uint8_t tcg_insn_unit
;
224 #elif TCG_TARGET_INSN_UNIT_SIZE == 2
225 typedef uint16_t tcg_insn_unit
;
226 #elif TCG_TARGET_INSN_UNIT_SIZE == 4
227 typedef uint32_t tcg_insn_unit
;
228 #elif TCG_TARGET_INSN_UNIT_SIZE == 8
229 typedef uint64_t tcg_insn_unit
;
231 /* The port better have done this. */
235 #if defined CONFIG_DEBUG_TCG || defined QEMU_STATIC_ANALYSIS
236 # define tcg_debug_assert(X) do { assert(X); } while (0)
238 # define tcg_debug_assert(X) \
239 do { if (!(X)) { __builtin_unreachable(); } } while (0)
242 typedef struct TCGRelocation TCGRelocation
;
243 struct TCGRelocation
{
244 QSIMPLEQ_ENTRY(TCGRelocation
) next
;
250 typedef struct TCGLabel TCGLabel
;
252 unsigned present
: 1;
253 unsigned has_value
: 1;
258 tcg_insn_unit
*value_ptr
;
260 QSIMPLEQ_HEAD(, TCGRelocation
) relocs
;
261 QSIMPLEQ_ENTRY(TCGLabel
) next
;
264 typedef struct TCGPool
{
265 struct TCGPool
*next
;
267 uint8_t data
[0] __attribute__ ((aligned
));
270 #define TCG_POOL_CHUNK_SIZE 32768
272 #define TCG_MAX_TEMPS 512
273 #define TCG_MAX_INSNS 512
275 /* when the size of the arguments of a called function is smaller than
276 this value, they are statically allocated in the TB stack frame */
277 #define TCG_STATIC_CALL_ARGS_SIZE 128
279 typedef enum TCGType
{
287 TCG_TYPE_COUNT
, /* number of different types */
289 /* An alias for the size of the host register. */
290 #if TCG_TARGET_REG_BITS == 32
291 TCG_TYPE_REG
= TCG_TYPE_I32
,
293 TCG_TYPE_REG
= TCG_TYPE_I64
,
296 /* An alias for the size of the native pointer. */
297 #if UINTPTR_MAX == UINT32_MAX
298 TCG_TYPE_PTR
= TCG_TYPE_I32
,
300 TCG_TYPE_PTR
= TCG_TYPE_I64
,
303 /* An alias for the size of the target "long", aka register. */
304 #if TARGET_LONG_BITS == 64
305 TCG_TYPE_TL
= TCG_TYPE_I64
,
307 TCG_TYPE_TL
= TCG_TYPE_I32
,
311 /* Constants for qemu_ld and qemu_st for the Memory Operation field. */
312 typedef enum TCGMemOp
{
317 MO_SIZE
= 3, /* Mask for the above. */
319 MO_SIGN
= 4, /* Sign-extended, otherwise zero-extended. */
321 MO_BSWAP
= 8, /* Host reverse endian. */
322 #ifdef HOST_WORDS_BIGENDIAN
329 #ifdef TARGET_WORDS_BIGENDIAN
335 /* MO_UNALN accesses are never checked for alignment.
336 * MO_ALIGN accesses will result in a call to the CPU's
337 * do_unaligned_access hook if the guest address is not aligned.
338 * The default depends on whether the target CPU defines ALIGNED_ONLY.
340 * Some architectures (e.g. ARMv8) need the address which is aligned
341 * to a size more than the size of the memory access.
342 * Some architectures (e.g. SPARCv9) need an address which is aligned,
343 * but less strictly than the natural alignment.
345 * MO_ALIGN supposes the alignment size is the size of a memory access.
347 * There are three options:
348 * - unaligned access permitted (MO_UNALN).
349 * - an alignment to the size of an access (MO_ALIGN);
350 * - an alignment to a specified size, which may be more or less than
351 * the access size (MO_ALIGN_x where 'x' is a size in bytes);
354 MO_AMASK
= 7 << MO_ASHIFT
,
362 MO_ALIGN_2
= 1 << MO_ASHIFT
,
363 MO_ALIGN_4
= 2 << MO_ASHIFT
,
364 MO_ALIGN_8
= 3 << MO_ASHIFT
,
365 MO_ALIGN_16
= 4 << MO_ASHIFT
,
366 MO_ALIGN_32
= 5 << MO_ASHIFT
,
367 MO_ALIGN_64
= 6 << MO_ASHIFT
,
369 /* Combinations of the above, for ease of use. */
373 MO_SB
= MO_SIGN
| MO_8
,
374 MO_SW
= MO_SIGN
| MO_16
,
375 MO_SL
= MO_SIGN
| MO_32
,
378 MO_LEUW
= MO_LE
| MO_UW
,
379 MO_LEUL
= MO_LE
| MO_UL
,
380 MO_LESW
= MO_LE
| MO_SW
,
381 MO_LESL
= MO_LE
| MO_SL
,
382 MO_LEQ
= MO_LE
| MO_Q
,
384 MO_BEUW
= MO_BE
| MO_UW
,
385 MO_BEUL
= MO_BE
| MO_UL
,
386 MO_BESW
= MO_BE
| MO_SW
,
387 MO_BESL
= MO_BE
| MO_SL
,
388 MO_BEQ
= MO_BE
| MO_Q
,
390 MO_TEUW
= MO_TE
| MO_UW
,
391 MO_TEUL
= MO_TE
| MO_UL
,
392 MO_TESW
= MO_TE
| MO_SW
,
393 MO_TESL
= MO_TE
| MO_SL
,
394 MO_TEQ
= MO_TE
| MO_Q
,
396 MO_SSIZE
= MO_SIZE
| MO_SIGN
,
401 * @memop: TCGMemOp value
403 * Extract the alignment size from the memop.
405 static inline unsigned get_alignment_bits(TCGMemOp memop
)
407 unsigned a
= memop
& MO_AMASK
;
410 /* No alignment required. */
412 } else if (a
== MO_ALIGN
) {
413 /* A natural alignment requirement. */
416 /* A specific alignment requirement. */
419 #if defined(CONFIG_SOFTMMU)
420 /* The requested alignment cannot overlap the TLB flags. */
421 tcg_debug_assert((TLB_FLAGS_MASK
& ((1 << a
) - 1)) == 0);
426 typedef tcg_target_ulong TCGArg
;
428 /* Define type and accessor macros for TCG variables.
430 TCG variables are the inputs and outputs of TCG ops, as described
431 in tcg/README. Target CPU front-end code uses these types to deal
432 with TCG variables as it emits TCG code via the tcg_gen_* functions.
433 They come in several flavours:
434 * TCGv_i32 : 32 bit integer type
435 * TCGv_i64 : 64 bit integer type
436 * TCGv_ptr : a host pointer type
437 * TCGv_vec : a host vector type; the exact size is not exposed
438 to the CPU front-end code.
439 * TCGv : an integer type the same size as target_ulong
440 (an alias for either TCGv_i32 or TCGv_i64)
441 The compiler's type checking will complain if you mix them
442 up and pass the wrong sized TCGv to a function.
444 Users of tcg_gen_* don't need to know about any of the internal
445 details of these, and should treat them as opaque types.
446 You won't be able to look inside them in a debugger either.
448 Internal implementation details follow:
450 Note that there is no definition of the structs TCGv_i32_d etc anywhere.
451 This is deliberate, because the values we store in variables of type
452 TCGv_i32 are not really pointers-to-structures. They're just small
453 integers, but keeping them in pointer types like this means that the
454 compiler will complain if you accidentally pass a TCGv_i32 to a
455 function which takes a TCGv_i64, and so on. Only the internals of
456 TCG need to care about the actual contents of the types. */
458 typedef struct TCGv_i32_d
*TCGv_i32
;
459 typedef struct TCGv_i64_d
*TCGv_i64
;
460 typedef struct TCGv_ptr_d
*TCGv_ptr
;
461 typedef struct TCGv_vec_d
*TCGv_vec
;
462 typedef TCGv_ptr TCGv_env
;
463 #if TARGET_LONG_BITS == 32
464 #define TCGv TCGv_i32
465 #elif TARGET_LONG_BITS == 64
466 #define TCGv TCGv_i64
468 #error Unhandled TARGET_LONG_BITS value
472 /* Helper does not read globals (either directly or through an exception). It
473 implies TCG_CALL_NO_WRITE_GLOBALS. */
474 #define TCG_CALL_NO_READ_GLOBALS 0x0001
475 /* Helper does not write globals */
476 #define TCG_CALL_NO_WRITE_GLOBALS 0x0002
477 /* Helper can be safely suppressed if the return value is not used. */
478 #define TCG_CALL_NO_SIDE_EFFECTS 0x0004
479 /* Helper is QEMU_NORETURN. */
480 #define TCG_CALL_NO_RETURN 0x0008
482 /* convenience version of most used call flags */
483 #define TCG_CALL_NO_RWG TCG_CALL_NO_READ_GLOBALS
484 #define TCG_CALL_NO_WG TCG_CALL_NO_WRITE_GLOBALS
485 #define TCG_CALL_NO_SE TCG_CALL_NO_SIDE_EFFECTS
486 #define TCG_CALL_NO_RWG_SE (TCG_CALL_NO_RWG | TCG_CALL_NO_SE)
487 #define TCG_CALL_NO_WG_SE (TCG_CALL_NO_WG | TCG_CALL_NO_SE)
489 /* Used to align parameters. See the comment before tcgv_i32_temp. */
490 #define TCG_CALL_DUMMY_ARG ((TCGArg)0)
492 /* Conditions. Note that these are laid out for easy manipulation by
494 bit 0 is used for inverting;
497 bit 3 is used with bit 0 for swapping signed/unsigned. */
500 TCG_COND_NEVER
= 0 | 0 | 0 | 0,
501 TCG_COND_ALWAYS
= 0 | 0 | 0 | 1,
502 TCG_COND_EQ
= 8 | 0 | 0 | 0,
503 TCG_COND_NE
= 8 | 0 | 0 | 1,
505 TCG_COND_LT
= 0 | 0 | 2 | 0,
506 TCG_COND_GE
= 0 | 0 | 2 | 1,
507 TCG_COND_LE
= 8 | 0 | 2 | 0,
508 TCG_COND_GT
= 8 | 0 | 2 | 1,
510 TCG_COND_LTU
= 0 | 4 | 0 | 0,
511 TCG_COND_GEU
= 0 | 4 | 0 | 1,
512 TCG_COND_LEU
= 8 | 4 | 0 | 0,
513 TCG_COND_GTU
= 8 | 4 | 0 | 1,
516 /* Invert the sense of the comparison. */
517 static inline TCGCond
tcg_invert_cond(TCGCond c
)
519 return (TCGCond
)(c
^ 1);
522 /* Swap the operands in a comparison. */
523 static inline TCGCond
tcg_swap_cond(TCGCond c
)
525 return c
& 6 ? (TCGCond
)(c
^ 9) : c
;
528 /* Create an "unsigned" version of a "signed" comparison. */
529 static inline TCGCond
tcg_unsigned_cond(TCGCond c
)
531 return c
& 2 ? (TCGCond
)(c
^ 6) : c
;
534 /* Create a "signed" version of an "unsigned" comparison. */
535 static inline TCGCond
tcg_signed_cond(TCGCond c
)
537 return c
& 4 ? (TCGCond
)(c
^ 6) : c
;
540 /* Must a comparison be considered unsigned? */
541 static inline bool is_unsigned_cond(TCGCond c
)
546 /* Create a "high" version of a double-word comparison.
547 This removes equality from a LTE or GTE comparison. */
548 static inline TCGCond
tcg_high_cond(TCGCond c
)
555 return (TCGCond
)(c
^ 8);
561 typedef enum TCGTempVal
{
568 typedef struct TCGTemp
{
570 TCGTempVal val_type
:8;
573 unsigned int fixed_reg
:1;
574 unsigned int indirect_reg
:1;
575 unsigned int indirect_base
:1;
576 unsigned int mem_coherent
:1;
577 unsigned int mem_allocated
:1;
578 /* If true, the temp is saved across both basic blocks and
579 translation blocks. */
580 unsigned int temp_global
:1;
581 /* If true, the temp is saved across basic blocks but dead
582 at the end of translation blocks. If false, the temp is
583 dead at the end of basic blocks. */
584 unsigned int temp_local
:1;
585 unsigned int temp_allocated
:1;
588 struct TCGTemp
*mem_base
;
592 /* Pass-specific information that can be stored for a temporary.
593 One word worth of integer data, and one pointer to data
594 allocated separately. */
599 typedef struct TCGContext TCGContext
;
601 typedef struct TCGTempSet
{
602 unsigned long l
[BITS_TO_LONGS(TCG_MAX_TEMPS
)];
605 /* While we limit helpers to 6 arguments, for 32-bit hosts, with padding,
606 this imples a max of 6*2 (64-bit in) + 2 (64-bit out) = 14 operands.
607 There are never more than 2 outputs, which means that we can store all
608 dead + sync data within 16 bits. */
611 typedef uint16_t TCGLifeData
;
613 /* The layout here is designed to avoid a bitfield crossing of
614 a 32-bit boundary, which would cause GCC to add extra padding. */
615 typedef struct TCGOp
{
616 TCGOpcode opc
: 8; /* 8 */
618 /* Parameters for this opcode. See below. */
619 unsigned param1
: 4; /* 12 */
620 unsigned param2
: 4; /* 16 */
622 /* Lifetime data of the operands. */
623 unsigned life
: 16; /* 32 */
625 /* Next and previous opcodes. */
626 QTAILQ_ENTRY(TCGOp
) link
;
628 /* Arguments for the opcode. */
629 TCGArg args
[MAX_OPC_PARAM
];
631 /* Register preferences for the output(s). */
632 TCGRegSet output_pref
[2];
635 #define TCGOP_CALLI(X) (X)->param1
636 #define TCGOP_CALLO(X) (X)->param2
638 #define TCGOP_VECL(X) (X)->param1
639 #define TCGOP_VECE(X) (X)->param2
641 /* Make sure operands fit in the bitfields above. */
642 QEMU_BUILD_BUG_ON(NB_OPS
> (1 << 8));
644 typedef struct TCGProfile
{
645 int64_t cpu_exec_time
;
648 int64_t op_count
; /* total insn count */
649 int op_count_max
; /* max insn per TB */
652 int64_t del_op_count
;
654 int64_t code_out_len
;
655 int64_t search_out_len
;
660 int64_t restore_count
;
661 int64_t restore_time
;
662 int64_t table_op_count
[NB_OPS
];
666 uint8_t *pool_cur
, *pool_end
;
667 TCGPool
*pool_first
, *pool_current
, *pool_first_large
;
674 /* goto_tb support */
675 tcg_insn_unit
*code_buf
;
676 uint16_t *tb_jmp_reset_offset
; /* tb->jmp_reset_offset */
677 uintptr_t *tb_jmp_insn_offset
; /* tb->jmp_target_arg if direct_jump */
678 uintptr_t *tb_jmp_target_addr
; /* tb->jmp_target_arg if !direct_jump */
680 TCGRegSet reserved_regs
;
681 uint32_t tb_cflags
; /* cflags of the current TB */
682 intptr_t current_frame_offset
;
683 intptr_t frame_start
;
687 tcg_insn_unit
*code_ptr
;
689 #ifdef CONFIG_PROFILER
693 #ifdef CONFIG_DEBUG_TCG
695 int goto_tb_issue_mask
;
696 const TCGOpcode
*vecop_list
;
699 /* Code generation. Note that we specifically do not use tcg_insn_unit
700 here, because there's too much arithmetic throughout that relies
701 on addition and subtraction working on bytes. Rely on the GCC
702 extension that allows arithmetic on void*. */
703 void *code_gen_prologue
;
704 void *code_gen_epilogue
;
705 void *code_gen_buffer
;
706 size_t code_gen_buffer_size
;
710 /* Threshold to flush the translated code buffer. */
711 void *code_gen_highwater
;
713 size_t tb_phys_invalidate_count
;
715 /* Track which vCPU triggers events */
716 CPUState
*cpu
; /* *_trans */
718 /* These structures are private to tcg-target.inc.c. */
719 #ifdef TCG_TARGET_NEED_LDST_LABELS
720 QSIMPLEQ_HEAD(, TCGLabelQemuLdst
) ldst_labels
;
722 #ifdef TCG_TARGET_NEED_POOL_LABELS
723 struct TCGLabelPoolData
*pool_labels
;
726 TCGLabel
*exitreq_label
;
728 TCGTempSet free_temps
[TCG_TYPE_COUNT
* 2];
729 TCGTemp temps
[TCG_MAX_TEMPS
]; /* globals first, temps after */
731 QTAILQ_HEAD(, TCGOp
) ops
, free_ops
;
732 QSIMPLEQ_HEAD(, TCGLabel
) labels
;
734 /* Tells which temporary holds a given register.
735 It does not take into account fixed registers */
736 TCGTemp
*reg_to_temp
[TCG_TARGET_NB_REGS
];
738 uint16_t gen_insn_end_off
[TCG_MAX_INSNS
];
739 target_ulong gen_insn_data
[TCG_MAX_INSNS
][TARGET_INSN_START_WORDS
];
742 extern TCGContext tcg_init_ctx
;
743 extern __thread TCGContext
*tcg_ctx
;
744 extern TCGv_env cpu_env
;
746 static inline size_t temp_idx(TCGTemp
*ts
)
748 ptrdiff_t n
= ts
- tcg_ctx
->temps
;
749 tcg_debug_assert(n
>= 0 && n
< tcg_ctx
->nb_temps
);
753 static inline TCGArg
temp_arg(TCGTemp
*ts
)
755 return (uintptr_t)ts
;
758 static inline TCGTemp
*arg_temp(TCGArg a
)
760 return (TCGTemp
*)(uintptr_t)a
;
763 /* Using the offset of a temporary, relative to TCGContext, rather than
764 its index means that we don't use 0. That leaves offset 0 free for
765 a NULL representation without having to leave index 0 unused. */
766 static inline TCGTemp
*tcgv_i32_temp(TCGv_i32 v
)
768 uintptr_t o
= (uintptr_t)v
;
769 TCGTemp
*t
= (void *)tcg_ctx
+ o
;
770 tcg_debug_assert(offsetof(TCGContext
, temps
[temp_idx(t
)]) == o
);
774 static inline TCGTemp
*tcgv_i64_temp(TCGv_i64 v
)
776 return tcgv_i32_temp((TCGv_i32
)v
);
779 static inline TCGTemp
*tcgv_ptr_temp(TCGv_ptr v
)
781 return tcgv_i32_temp((TCGv_i32
)v
);
784 static inline TCGTemp
*tcgv_vec_temp(TCGv_vec v
)
786 return tcgv_i32_temp((TCGv_i32
)v
);
789 static inline TCGArg
tcgv_i32_arg(TCGv_i32 v
)
791 return temp_arg(tcgv_i32_temp(v
));
794 static inline TCGArg
tcgv_i64_arg(TCGv_i64 v
)
796 return temp_arg(tcgv_i64_temp(v
));
799 static inline TCGArg
tcgv_ptr_arg(TCGv_ptr v
)
801 return temp_arg(tcgv_ptr_temp(v
));
804 static inline TCGArg
tcgv_vec_arg(TCGv_vec v
)
806 return temp_arg(tcgv_vec_temp(v
));
809 static inline TCGv_i32
temp_tcgv_i32(TCGTemp
*t
)
811 (void)temp_idx(t
); /* trigger embedded assert */
812 return (TCGv_i32
)((void *)t
- (void *)tcg_ctx
);
815 static inline TCGv_i64
temp_tcgv_i64(TCGTemp
*t
)
817 return (TCGv_i64
)temp_tcgv_i32(t
);
820 static inline TCGv_ptr
temp_tcgv_ptr(TCGTemp
*t
)
822 return (TCGv_ptr
)temp_tcgv_i32(t
);
825 static inline TCGv_vec
temp_tcgv_vec(TCGTemp
*t
)
827 return (TCGv_vec
)temp_tcgv_i32(t
);
830 #if TCG_TARGET_REG_BITS == 32
831 static inline TCGv_i32
TCGV_LOW(TCGv_i64 t
)
833 return temp_tcgv_i32(tcgv_i64_temp(t
));
836 static inline TCGv_i32
TCGV_HIGH(TCGv_i64 t
)
838 return temp_tcgv_i32(tcgv_i64_temp(t
) + 1);
842 static inline void tcg_set_insn_param(TCGOp
*op
, int arg
, TCGArg v
)
847 static inline void tcg_set_insn_start_param(TCGOp
*op
, int arg
, target_ulong v
)
849 #if TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
850 tcg_set_insn_param(op
, arg
, v
);
852 tcg_set_insn_param(op
, arg
* 2, v
);
853 tcg_set_insn_param(op
, arg
* 2 + 1, v
>> 32);
857 /* The last op that was emitted. */
858 static inline TCGOp
*tcg_last_op(void)
860 return QTAILQ_LAST(&tcg_ctx
->ops
);
863 /* Test for whether to terminate the TB for using too many opcodes. */
864 static inline bool tcg_op_buf_full(void)
866 /* This is not a hard limit, it merely stops translation when
867 * we have produced "enough" opcodes. We want to limit TB size
868 * such that a RISC host can reasonably use a 16-bit signed
869 * branch within the TB. We also need to be mindful of the
870 * 16-bit unsigned offsets, TranslationBlock.jmp_reset_offset[]
871 * and TCGContext.gen_insn_end_off[].
873 return tcg_ctx
->nb_ops
>= 4000;
876 /* pool based memory allocation */
878 /* user-mode: mmap_lock must be held for tcg_malloc_internal. */
879 void *tcg_malloc_internal(TCGContext
*s
, int size
);
880 void tcg_pool_reset(TCGContext
*s
);
881 TranslationBlock
*tcg_tb_alloc(TCGContext
*s
);
883 void tcg_region_init(void);
884 void tcg_region_reset_all(void);
886 size_t tcg_code_size(void);
887 size_t tcg_code_capacity(void);
889 void tcg_tb_insert(TranslationBlock
*tb
);
890 void tcg_tb_remove(TranslationBlock
*tb
);
891 size_t tcg_tb_phys_invalidate_count(void);
892 TranslationBlock
*tcg_tb_lookup(uintptr_t tc_ptr
);
893 void tcg_tb_foreach(GTraverseFunc func
, gpointer user_data
);
894 size_t tcg_nb_tbs(void);
896 /* user-mode: Called with mmap_lock held. */
897 static inline void *tcg_malloc(int size
)
899 TCGContext
*s
= tcg_ctx
;
900 uint8_t *ptr
, *ptr_end
;
902 /* ??? This is a weak placeholder for minimum malloc alignment. */
903 size
= QEMU_ALIGN_UP(size
, 8);
906 ptr_end
= ptr
+ size
;
907 if (unlikely(ptr_end
> s
->pool_end
)) {
908 return tcg_malloc_internal(tcg_ctx
, size
);
910 s
->pool_cur
= ptr_end
;
915 void tcg_context_init(TCGContext
*s
);
916 void tcg_register_thread(void);
917 void tcg_prologue_init(TCGContext
*s
);
918 void tcg_func_start(TCGContext
*s
);
920 int tcg_gen_code(TCGContext
*s
, TranslationBlock
*tb
);
922 void tcg_set_frame(TCGContext
*s
, TCGReg reg
, intptr_t start
, intptr_t size
);
924 TCGTemp
*tcg_global_mem_new_internal(TCGType
, TCGv_ptr
,
925 intptr_t, const char *);
926 TCGTemp
*tcg_temp_new_internal(TCGType
, bool);
927 void tcg_temp_free_internal(TCGTemp
*);
928 TCGv_vec
tcg_temp_new_vec(TCGType type
);
929 TCGv_vec
tcg_temp_new_vec_matching(TCGv_vec match
);
931 static inline void tcg_temp_free_i32(TCGv_i32 arg
)
933 tcg_temp_free_internal(tcgv_i32_temp(arg
));
936 static inline void tcg_temp_free_i64(TCGv_i64 arg
)
938 tcg_temp_free_internal(tcgv_i64_temp(arg
));
941 static inline void tcg_temp_free_ptr(TCGv_ptr arg
)
943 tcg_temp_free_internal(tcgv_ptr_temp(arg
));
946 static inline void tcg_temp_free_vec(TCGv_vec arg
)
948 tcg_temp_free_internal(tcgv_vec_temp(arg
));
951 static inline TCGv_i32
tcg_global_mem_new_i32(TCGv_ptr reg
, intptr_t offset
,
954 TCGTemp
*t
= tcg_global_mem_new_internal(TCG_TYPE_I32
, reg
, offset
, name
);
955 return temp_tcgv_i32(t
);
958 static inline TCGv_i32
tcg_temp_new_i32(void)
960 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_I32
, false);
961 return temp_tcgv_i32(t
);
964 static inline TCGv_i32
tcg_temp_local_new_i32(void)
966 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_I32
, true);
967 return temp_tcgv_i32(t
);
970 static inline TCGv_i64
tcg_global_mem_new_i64(TCGv_ptr reg
, intptr_t offset
,
973 TCGTemp
*t
= tcg_global_mem_new_internal(TCG_TYPE_I64
, reg
, offset
, name
);
974 return temp_tcgv_i64(t
);
977 static inline TCGv_i64
tcg_temp_new_i64(void)
979 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_I64
, false);
980 return temp_tcgv_i64(t
);
983 static inline TCGv_i64
tcg_temp_local_new_i64(void)
985 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_I64
, true);
986 return temp_tcgv_i64(t
);
989 static inline TCGv_ptr
tcg_global_mem_new_ptr(TCGv_ptr reg
, intptr_t offset
,
992 TCGTemp
*t
= tcg_global_mem_new_internal(TCG_TYPE_PTR
, reg
, offset
, name
);
993 return temp_tcgv_ptr(t
);
996 static inline TCGv_ptr
tcg_temp_new_ptr(void)
998 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_PTR
, false);
999 return temp_tcgv_ptr(t
);
1002 static inline TCGv_ptr
tcg_temp_local_new_ptr(void)
1004 TCGTemp
*t
= tcg_temp_new_internal(TCG_TYPE_PTR
, true);
1005 return temp_tcgv_ptr(t
);
1008 #if defined(CONFIG_DEBUG_TCG)
1009 /* If you call tcg_clear_temp_count() at the start of a section of
1010 * code which is not supposed to leak any TCG temporaries, then
1011 * calling tcg_check_temp_count() at the end of the section will
1012 * return 1 if the section did in fact leak a temporary.
1014 void tcg_clear_temp_count(void);
1015 int tcg_check_temp_count(void);
1017 #define tcg_clear_temp_count() do { } while (0)
1018 #define tcg_check_temp_count() 0
1021 int64_t tcg_cpu_exec_time(void);
1022 void tcg_dump_info(void);
1023 void tcg_dump_op_count(void);
1025 #define TCG_CT_ALIAS 0x80
1026 #define TCG_CT_IALIAS 0x40
1027 #define TCG_CT_NEWREG 0x20 /* output requires a new register */
1028 #define TCG_CT_REG 0x01
1029 #define TCG_CT_CONST 0x02 /* any constant of register size */
1031 typedef struct TCGArgConstraint
{
1033 uint8_t alias_index
;
1039 #define TCG_MAX_OP_ARGS 16
1041 /* Bits for TCGOpDef->flags, 8 bits available. */
1043 /* Instruction exits the translation block. */
1044 TCG_OPF_BB_EXIT
= 0x01,
1045 /* Instruction defines the end of a basic block. */
1046 TCG_OPF_BB_END
= 0x02,
1047 /* Instruction clobbers call registers and potentially update globals. */
1048 TCG_OPF_CALL_CLOBBER
= 0x04,
1049 /* Instruction has side effects: it cannot be removed if its outputs
1050 are not used, and might trigger exceptions. */
1051 TCG_OPF_SIDE_EFFECTS
= 0x08,
1052 /* Instruction operands are 64-bits (otherwise 32-bits). */
1053 TCG_OPF_64BIT
= 0x10,
1054 /* Instruction is optional and not implemented by the host, or insn
1055 is generic and should not be implemened by the host. */
1056 TCG_OPF_NOT_PRESENT
= 0x20,
1057 /* Instruction operands are vectors. */
1058 TCG_OPF_VECTOR
= 0x40,
1061 typedef struct TCGOpDef
{
1063 uint8_t nb_oargs
, nb_iargs
, nb_cargs
, nb_args
;
1065 TCGArgConstraint
*args_ct
;
1067 #if defined(CONFIG_DEBUG_TCG)
1072 extern TCGOpDef tcg_op_defs
[];
1073 extern const size_t tcg_op_defs_max
;
1075 typedef struct TCGTargetOpDef
{
1077 const char *args_ct_str
[TCG_MAX_OP_ARGS
];
1080 #define tcg_abort() \
1082 fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
1086 bool tcg_op_supported(TCGOpcode op
);
1088 void tcg_gen_callN(void *func
, TCGTemp
*ret
, int nargs
, TCGTemp
**args
);
1090 TCGOp
*tcg_emit_op(TCGOpcode opc
);
1091 void tcg_op_remove(TCGContext
*s
, TCGOp
*op
);
1092 TCGOp
*tcg_op_insert_before(TCGContext
*s
, TCGOp
*op
, TCGOpcode opc
);
1093 TCGOp
*tcg_op_insert_after(TCGContext
*s
, TCGOp
*op
, TCGOpcode opc
);
1095 void tcg_optimize(TCGContext
*s
);
1097 TCGv_i32
tcg_const_i32(int32_t val
);
1098 TCGv_i64
tcg_const_i64(int64_t val
);
1099 TCGv_i32
tcg_const_local_i32(int32_t val
);
1100 TCGv_i64
tcg_const_local_i64(int64_t val
);
1101 TCGv_vec
tcg_const_zeros_vec(TCGType
);
1102 TCGv_vec
tcg_const_ones_vec(TCGType
);
1103 TCGv_vec
tcg_const_zeros_vec_matching(TCGv_vec
);
1104 TCGv_vec
tcg_const_ones_vec_matching(TCGv_vec
);
1106 #if UINTPTR_MAX == UINT32_MAX
1107 # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i32((intptr_t)(x)))
1108 # define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i32((intptr_t)(x)))
1110 # define tcg_const_ptr(x) ((TCGv_ptr)tcg_const_i64((intptr_t)(x)))
1111 # define tcg_const_local_ptr(x) ((TCGv_ptr)tcg_const_local_i64((intptr_t)(x)))
1114 TCGLabel
*gen_new_label(void);
1120 * Encode a label for storage in the TCG opcode stream.
1123 static inline TCGArg
label_arg(TCGLabel
*l
)
1125 return (uintptr_t)l
;
1132 * The opposite of label_arg. Retrieve a label from the
1133 * encoding of the TCG opcode stream.
1136 static inline TCGLabel
*arg_label(TCGArg i
)
1138 return (TCGLabel
*)(uintptr_t)i
;
1143 * @a, @b: addresses to be differenced
1145 * There are many places within the TCG backends where we need a byte
1146 * difference between two pointers. While this can be accomplished
1147 * with local casting, it's easy to get wrong -- especially if one is
1148 * concerned with the signedness of the result.
1150 * This version relies on GCC's void pointer arithmetic to get the
1154 static inline ptrdiff_t tcg_ptr_byte_diff(void *a
, void *b
)
1161 * @s: the tcg context
1162 * @target: address of the target
1164 * Produce a pc-relative difference, from the current code_ptr
1165 * to the destination address.
1168 static inline ptrdiff_t tcg_pcrel_diff(TCGContext
*s
, void *target
)
1170 return tcg_ptr_byte_diff(target
, s
->code_ptr
);
1174 * tcg_current_code_size
1175 * @s: the tcg context
1177 * Compute the current code size within the translation block.
1178 * This is used to fill in qemu's data structures for goto_tb.
1181 static inline size_t tcg_current_code_size(TCGContext
*s
)
1183 return tcg_ptr_byte_diff(s
->code_ptr
, s
->code_buf
);
1186 /* Combine the TCGMemOp and mmu_idx parameters into a single value. */
1187 typedef uint32_t TCGMemOpIdx
;
1191 * @op: memory operation
1194 * Encode these values into a single parameter.
1196 static inline TCGMemOpIdx
make_memop_idx(TCGMemOp op
, unsigned idx
)
1198 tcg_debug_assert(idx
<= 15);
1199 return (op
<< 4) | idx
;
1204 * @oi: combined op/idx parameter
1206 * Extract the memory operation from the combined value.
1208 static inline TCGMemOp
get_memop(TCGMemOpIdx oi
)
1215 * @oi: combined op/idx parameter
1217 * Extract the mmu index from the combined value.
1219 static inline unsigned get_mmuidx(TCGMemOpIdx oi
)
1226 * @env: pointer to CPUArchState for the CPU
1227 * @tb_ptr: address of generated code for the TB to execute
1229 * Start executing code from a given translation block.
1230 * Where translation blocks have been linked, execution
1231 * may proceed from the given TB into successive ones.
1232 * Control eventually returns only when some action is needed
1233 * from the top-level loop: either control must pass to a TB
1234 * which has not yet been directly linked, or an asynchronous
1235 * event such as an interrupt needs handling.
1237 * Return: The return value is the value passed to the corresponding
1238 * tcg_gen_exit_tb() at translation time of the last TB attempted to execute.
1239 * The value is either zero or a 4-byte aligned pointer to that TB combined
1240 * with additional information in its two least significant bits. The
1241 * additional information is encoded as follows:
1242 * 0, 1: the link between this TB and the next is via the specified
1243 * TB index (0 or 1). That is, we left the TB via (the equivalent
1244 * of) "goto_tb <index>". The main loop uses this to determine
1245 * how to link the TB just executed to the next.
1246 * 2: we are using instruction counting code generation, and we
1247 * did not start executing this TB because the instruction counter
1248 * would hit zero midway through it. In this case the pointer
1249 * returned is the TB we were about to execute, and the caller must
1250 * arrange to execute the remaining count of instructions.
1251 * 3: we stopped because the CPU's exit_request flag was set
1252 * (usually meaning that there is an interrupt that needs to be
1253 * handled). The pointer returned is the TB we were about to execute
1254 * when we noticed the pending exit request.
1256 * If the bottom two bits indicate an exit-via-index then the CPU
1257 * state is correctly synchronised and ready for execution of the next
1258 * TB (and in particular the guest PC is the address to execute next).
1259 * Otherwise, we gave up on execution of this TB before it started, and
1260 * the caller must fix up the CPU state by calling the CPU's
1261 * synchronize_from_tb() method with the TB pointer we return (falling
1262 * back to calling the CPU's set_pc method with tb->pb if no
1263 * synchronize_from_tb() method exists).
1265 * Note that TCG targets may use a different definition of tcg_qemu_tb_exec
1266 * to this default (which just calls the prologue.code emitted by
1267 * tcg_target_qemu_prologue()).
1269 #define TB_EXIT_MASK 3
1270 #define TB_EXIT_IDX0 0
1271 #define TB_EXIT_IDX1 1
1272 #define TB_EXIT_IDXMAX 1
1273 #define TB_EXIT_REQUESTED 3
1275 #ifdef HAVE_TCG_QEMU_TB_EXEC
1276 uintptr_t tcg_qemu_tb_exec(CPUArchState
*env
, uint8_t *tb_ptr
);
1278 # define tcg_qemu_tb_exec(env, tb_ptr) \
1279 ((uintptr_t (*)(void *, void *))tcg_ctx->code_gen_prologue)(env, tb_ptr)
1282 void tcg_register_jit(void *buf
, size_t buf_size
);
1284 #if TCG_TARGET_MAYBE_vec
1285 /* Return zero if the tuple (opc, type, vece) is unsupportable;
1286 return > 0 if it is directly supportable;
1287 return < 0 if we must call tcg_expand_vec_op. */
1288 int tcg_can_emit_vec_op(TCGOpcode
, TCGType
, unsigned);
1290 static inline int tcg_can_emit_vec_op(TCGOpcode o
, TCGType t
, unsigned ve
)
1296 /* Expand the tuple (opc, type, vece) on the given arguments. */
1297 void tcg_expand_vec_op(TCGOpcode
, TCGType
, unsigned, TCGArg
, ...);
1299 /* Replicate a constant C accoring to the log2 of the element size. */
1300 uint64_t dup_const(unsigned vece
, uint64_t c
);
1302 #define dup_const(VECE, C) \
1303 (__builtin_constant_p(VECE) \
1304 ? ( (VECE) == MO_8 ? 0x0101010101010101ull * (uint8_t)(C) \
1305 : (VECE) == MO_16 ? 0x0001000100010001ull * (uint16_t)(C) \
1306 : (VECE) == MO_32 ? 0x0000000100000001ull * (uint32_t)(C) \
1307 : dup_const(VECE, C)) \
1308 : dup_const(VECE, C))
1312 * Memory helpers that will be used by TCG generated code.
1314 #ifdef CONFIG_SOFTMMU
1315 /* Value zero-extended to tcg register size. */
1316 tcg_target_ulong
helper_ret_ldub_mmu(CPUArchState
*env
, target_ulong addr
,
1317 TCGMemOpIdx oi
, uintptr_t retaddr
);
1318 tcg_target_ulong
helper_le_lduw_mmu(CPUArchState
*env
, target_ulong addr
,
1319 TCGMemOpIdx oi
, uintptr_t retaddr
);
1320 tcg_target_ulong
helper_le_ldul_mmu(CPUArchState
*env
, target_ulong addr
,
1321 TCGMemOpIdx oi
, uintptr_t retaddr
);
1322 uint64_t helper_le_ldq_mmu(CPUArchState
*env
, target_ulong addr
,
1323 TCGMemOpIdx oi
, uintptr_t retaddr
);
1324 tcg_target_ulong
helper_be_lduw_mmu(CPUArchState
*env
, target_ulong addr
,
1325 TCGMemOpIdx oi
, uintptr_t retaddr
);
1326 tcg_target_ulong
helper_be_ldul_mmu(CPUArchState
*env
, target_ulong addr
,
1327 TCGMemOpIdx oi
, uintptr_t retaddr
);
1328 uint64_t helper_be_ldq_mmu(CPUArchState
*env
, target_ulong addr
,
1329 TCGMemOpIdx oi
, uintptr_t retaddr
);
1331 /* Value sign-extended to tcg register size. */
1332 tcg_target_ulong
helper_ret_ldsb_mmu(CPUArchState
*env
, target_ulong addr
,
1333 TCGMemOpIdx oi
, uintptr_t retaddr
);
1334 tcg_target_ulong
helper_le_ldsw_mmu(CPUArchState
*env
, target_ulong addr
,
1335 TCGMemOpIdx oi
, uintptr_t retaddr
);
1336 tcg_target_ulong
helper_le_ldsl_mmu(CPUArchState
*env
, target_ulong addr
,
1337 TCGMemOpIdx oi
, uintptr_t retaddr
);
1338 tcg_target_ulong
helper_be_ldsw_mmu(CPUArchState
*env
, target_ulong addr
,
1339 TCGMemOpIdx oi
, uintptr_t retaddr
);
1340 tcg_target_ulong
helper_be_ldsl_mmu(CPUArchState
*env
, target_ulong addr
,
1341 TCGMemOpIdx oi
, uintptr_t retaddr
);
1343 void helper_ret_stb_mmu(CPUArchState
*env
, target_ulong addr
, uint8_t val
,
1344 TCGMemOpIdx oi
, uintptr_t retaddr
);
1345 void helper_le_stw_mmu(CPUArchState
*env
, target_ulong addr
, uint16_t val
,
1346 TCGMemOpIdx oi
, uintptr_t retaddr
);
1347 void helper_le_stl_mmu(CPUArchState
*env
, target_ulong addr
, uint32_t val
,
1348 TCGMemOpIdx oi
, uintptr_t retaddr
);
1349 void helper_le_stq_mmu(CPUArchState
*env
, target_ulong addr
, uint64_t val
,
1350 TCGMemOpIdx oi
, uintptr_t retaddr
);
1351 void helper_be_stw_mmu(CPUArchState
*env
, target_ulong addr
, uint16_t val
,
1352 TCGMemOpIdx oi
, uintptr_t retaddr
);
1353 void helper_be_stl_mmu(CPUArchState
*env
, target_ulong addr
, uint32_t val
,
1354 TCGMemOpIdx oi
, uintptr_t retaddr
);
1355 void helper_be_stq_mmu(CPUArchState
*env
, target_ulong addr
, uint64_t val
,
1356 TCGMemOpIdx oi
, uintptr_t retaddr
);
1358 uint8_t helper_ret_ldb_cmmu(CPUArchState
*env
, target_ulong addr
,
1359 TCGMemOpIdx oi
, uintptr_t retaddr
);
1360 uint16_t helper_le_ldw_cmmu(CPUArchState
*env
, target_ulong addr
,
1361 TCGMemOpIdx oi
, uintptr_t retaddr
);
1362 uint32_t helper_le_ldl_cmmu(CPUArchState
*env
, target_ulong addr
,
1363 TCGMemOpIdx oi
, uintptr_t retaddr
);
1364 uint64_t helper_le_ldq_cmmu(CPUArchState
*env
, target_ulong addr
,
1365 TCGMemOpIdx oi
, uintptr_t retaddr
);
1366 uint16_t helper_be_ldw_cmmu(CPUArchState
*env
, target_ulong addr
,
1367 TCGMemOpIdx oi
, uintptr_t retaddr
);
1368 uint32_t helper_be_ldl_cmmu(CPUArchState
*env
, target_ulong addr
,
1369 TCGMemOpIdx oi
, uintptr_t retaddr
);
1370 uint64_t helper_be_ldq_cmmu(CPUArchState
*env
, target_ulong addr
,
1371 TCGMemOpIdx oi
, uintptr_t retaddr
);
1373 /* Temporary aliases until backends are converted. */
1374 #ifdef TARGET_WORDS_BIGENDIAN
1375 # define helper_ret_ldsw_mmu helper_be_ldsw_mmu
1376 # define helper_ret_lduw_mmu helper_be_lduw_mmu
1377 # define helper_ret_ldsl_mmu helper_be_ldsl_mmu
1378 # define helper_ret_ldul_mmu helper_be_ldul_mmu
1379 # define helper_ret_ldl_mmu helper_be_ldul_mmu
1380 # define helper_ret_ldq_mmu helper_be_ldq_mmu
1381 # define helper_ret_stw_mmu helper_be_stw_mmu
1382 # define helper_ret_stl_mmu helper_be_stl_mmu
1383 # define helper_ret_stq_mmu helper_be_stq_mmu
1384 # define helper_ret_ldw_cmmu helper_be_ldw_cmmu
1385 # define helper_ret_ldl_cmmu helper_be_ldl_cmmu
1386 # define helper_ret_ldq_cmmu helper_be_ldq_cmmu
1388 # define helper_ret_ldsw_mmu helper_le_ldsw_mmu
1389 # define helper_ret_lduw_mmu helper_le_lduw_mmu
1390 # define helper_ret_ldsl_mmu helper_le_ldsl_mmu
1391 # define helper_ret_ldul_mmu helper_le_ldul_mmu
1392 # define helper_ret_ldl_mmu helper_le_ldul_mmu
1393 # define helper_ret_ldq_mmu helper_le_ldq_mmu
1394 # define helper_ret_stw_mmu helper_le_stw_mmu
1395 # define helper_ret_stl_mmu helper_le_stl_mmu
1396 # define helper_ret_stq_mmu helper_le_stq_mmu
1397 # define helper_ret_ldw_cmmu helper_le_ldw_cmmu
1398 # define helper_ret_ldl_cmmu helper_le_ldl_cmmu
1399 # define helper_ret_ldq_cmmu helper_le_ldq_cmmu
1402 uint32_t helper_atomic_cmpxchgb_mmu(CPUArchState
*env
, target_ulong addr
,
1403 uint32_t cmpv
, uint32_t newv
,
1404 TCGMemOpIdx oi
, uintptr_t retaddr
);
1405 uint32_t helper_atomic_cmpxchgw_le_mmu(CPUArchState
*env
, target_ulong addr
,
1406 uint32_t cmpv
, uint32_t newv
,
1407 TCGMemOpIdx oi
, uintptr_t retaddr
);
1408 uint32_t helper_atomic_cmpxchgl_le_mmu(CPUArchState
*env
, target_ulong addr
,
1409 uint32_t cmpv
, uint32_t newv
,
1410 TCGMemOpIdx oi
, uintptr_t retaddr
);
1411 uint64_t helper_atomic_cmpxchgq_le_mmu(CPUArchState
*env
, target_ulong addr
,
1412 uint64_t cmpv
, uint64_t newv
,
1413 TCGMemOpIdx oi
, uintptr_t retaddr
);
1414 uint32_t helper_atomic_cmpxchgw_be_mmu(CPUArchState
*env
, target_ulong addr
,
1415 uint32_t cmpv
, uint32_t newv
,
1416 TCGMemOpIdx oi
, uintptr_t retaddr
);
1417 uint32_t helper_atomic_cmpxchgl_be_mmu(CPUArchState
*env
, target_ulong addr
,
1418 uint32_t cmpv
, uint32_t newv
,
1419 TCGMemOpIdx oi
, uintptr_t retaddr
);
1420 uint64_t helper_atomic_cmpxchgq_be_mmu(CPUArchState
*env
, target_ulong addr
,
1421 uint64_t cmpv
, uint64_t newv
,
1422 TCGMemOpIdx oi
, uintptr_t retaddr
);
1424 #define GEN_ATOMIC_HELPER(NAME, TYPE, SUFFIX) \
1425 TYPE helper_atomic_ ## NAME ## SUFFIX ## _mmu \
1426 (CPUArchState *env, target_ulong addr, TYPE val, \
1427 TCGMemOpIdx oi, uintptr_t retaddr);
1429 #ifdef CONFIG_ATOMIC64
1430 #define GEN_ATOMIC_HELPER_ALL(NAME) \
1431 GEN_ATOMIC_HELPER(NAME, uint32_t, b) \
1432 GEN_ATOMIC_HELPER(NAME, uint32_t, w_le) \
1433 GEN_ATOMIC_HELPER(NAME, uint32_t, w_be) \
1434 GEN_ATOMIC_HELPER(NAME, uint32_t, l_le) \
1435 GEN_ATOMIC_HELPER(NAME, uint32_t, l_be) \
1436 GEN_ATOMIC_HELPER(NAME, uint64_t, q_le) \
1437 GEN_ATOMIC_HELPER(NAME, uint64_t, q_be)
1439 #define GEN_ATOMIC_HELPER_ALL(NAME) \
1440 GEN_ATOMIC_HELPER(NAME, uint32_t, b) \
1441 GEN_ATOMIC_HELPER(NAME, uint32_t, w_le) \
1442 GEN_ATOMIC_HELPER(NAME, uint32_t, w_be) \
1443 GEN_ATOMIC_HELPER(NAME, uint32_t, l_le) \
1444 GEN_ATOMIC_HELPER(NAME, uint32_t, l_be)
1447 GEN_ATOMIC_HELPER_ALL(fetch_add
)
1448 GEN_ATOMIC_HELPER_ALL(fetch_sub
)
1449 GEN_ATOMIC_HELPER_ALL(fetch_and
)
1450 GEN_ATOMIC_HELPER_ALL(fetch_or
)
1451 GEN_ATOMIC_HELPER_ALL(fetch_xor
)
1452 GEN_ATOMIC_HELPER_ALL(fetch_smin
)
1453 GEN_ATOMIC_HELPER_ALL(fetch_umin
)
1454 GEN_ATOMIC_HELPER_ALL(fetch_smax
)
1455 GEN_ATOMIC_HELPER_ALL(fetch_umax
)
1457 GEN_ATOMIC_HELPER_ALL(add_fetch
)
1458 GEN_ATOMIC_HELPER_ALL(sub_fetch
)
1459 GEN_ATOMIC_HELPER_ALL(and_fetch
)
1460 GEN_ATOMIC_HELPER_ALL(or_fetch
)
1461 GEN_ATOMIC_HELPER_ALL(xor_fetch
)
1462 GEN_ATOMIC_HELPER_ALL(smin_fetch
)
1463 GEN_ATOMIC_HELPER_ALL(umin_fetch
)
1464 GEN_ATOMIC_HELPER_ALL(smax_fetch
)
1465 GEN_ATOMIC_HELPER_ALL(umax_fetch
)
1467 GEN_ATOMIC_HELPER_ALL(xchg
)
1469 #undef GEN_ATOMIC_HELPER_ALL
1470 #undef GEN_ATOMIC_HELPER
1471 #endif /* CONFIG_SOFTMMU */
1474 * These aren't really a "proper" helpers because TCG cannot manage Int128.
1475 * However, use the same format as the others, for use by the backends.
1477 * The cmpxchg functions are only defined if HAVE_CMPXCHG128;
1478 * the ld/st functions are only defined if HAVE_ATOMIC128,
1479 * as defined by <qemu/atomic128.h>.
1481 Int128
helper_atomic_cmpxchgo_le_mmu(CPUArchState
*env
, target_ulong addr
,
1482 Int128 cmpv
, Int128 newv
,
1483 TCGMemOpIdx oi
, uintptr_t retaddr
);
1484 Int128
helper_atomic_cmpxchgo_be_mmu(CPUArchState
*env
, target_ulong addr
,
1485 Int128 cmpv
, Int128 newv
,
1486 TCGMemOpIdx oi
, uintptr_t retaddr
);
1488 Int128
helper_atomic_ldo_le_mmu(CPUArchState
*env
, target_ulong addr
,
1489 TCGMemOpIdx oi
, uintptr_t retaddr
);
1490 Int128
helper_atomic_ldo_be_mmu(CPUArchState
*env
, target_ulong addr
,
1491 TCGMemOpIdx oi
, uintptr_t retaddr
);
1492 void helper_atomic_sto_le_mmu(CPUArchState
*env
, target_ulong addr
, Int128 val
,
1493 TCGMemOpIdx oi
, uintptr_t retaddr
);
1494 void helper_atomic_sto_be_mmu(CPUArchState
*env
, target_ulong addr
, Int128 val
,
1495 TCGMemOpIdx oi
, uintptr_t retaddr
);
1497 #ifdef CONFIG_DEBUG_TCG
1498 void tcg_assert_listed_vecop(TCGOpcode
);
1500 static inline void tcg_assert_listed_vecop(TCGOpcode op
) { }
1503 static inline const TCGOpcode
*tcg_swap_vecop_list(const TCGOpcode
*n
)
1505 #ifdef CONFIG_DEBUG_TCG
1506 const TCGOpcode
*o
= tcg_ctx
->vecop_list
;
1507 tcg_ctx
->vecop_list
= n
;
1514 bool tcg_can_emit_vecop_list(const TCGOpcode
*, TCGType
, unsigned);