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1 /*
2 * Internal declarations for 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
25 #ifndef TCG_INTERNAL_H
26 #define TCG_INTERNAL_H
27
28 #include "tcg/helper-info.h"
29
30 #define TCG_HIGHWATER 1024
31
32 extern TCGContext tcg_init_ctx;
33 extern TCGContext **tcg_ctxs;
34 extern unsigned int tcg_cur_ctxs;
35 extern unsigned int tcg_max_ctxs;
36
37 #ifdef CONFIG_USER_ONLY
38 #define tcg_use_softmmu false
39 #else
40 #define tcg_use_softmmu true
41 #endif
42
43 void tcg_region_init(size_t tb_size, int splitwx, unsigned max_threads);
44 bool tcg_region_alloc(TCGContext *s);
45 void tcg_region_thread_initial_alloc(TCGContext *s);
46 void tcg_region_prologue_set(TCGContext *s);
47
48 static inline void *tcg_call_func(TCGOp *op)
49 {
50 return (void *)(uintptr_t)op->args[TCGOP_CALLO(op) + TCGOP_CALLI(op)];
51 }
52
53 static inline const TCGHelperInfo *tcg_call_info(TCGOp *op)
54 {
55 return (void *)(uintptr_t)op->args[TCGOP_CALLO(op) + TCGOP_CALLI(op) + 1];
56 }
57
58 static inline unsigned tcg_call_flags(TCGOp *op)
59 {
60 return tcg_call_info(op)->flags;
61 }
62
63 static inline TCGv_i64 TCGV128_LOW(TCGv_i128 t)
64 {
65 return temp_tcgv_i64(tcgv_i128_temp(t) + HOST_BIG_ENDIAN);
66 }
67
68 static inline TCGv_i64 TCGV128_HIGH(TCGv_i128 t)
69 {
70 return temp_tcgv_i64(tcgv_i128_temp(t) + !HOST_BIG_ENDIAN);
71 }
72
73 bool tcg_target_has_memory_bswap(MemOp memop);
74
75 TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind);
76
77 /*
78 * Locate or create a read-only temporary that is a constant.
79 * This kind of temporary need not be freed, but for convenience
80 * will be silently ignored by tcg_temp_free_*.
81 */
82 TCGTemp *tcg_constant_internal(TCGType type, int64_t val);
83
84 TCGOp *tcg_gen_op1(TCGOpcode, TCGType, TCGArg);
85 TCGOp *tcg_gen_op2(TCGOpcode, TCGType, TCGArg, TCGArg);
86 TCGOp *tcg_gen_op3(TCGOpcode, TCGType, TCGArg, TCGArg, TCGArg);
87 TCGOp *tcg_gen_op4(TCGOpcode, TCGType, TCGArg, TCGArg, TCGArg, TCGArg);
88 TCGOp *tcg_gen_op5(TCGOpcode, TCGType, TCGArg, TCGArg, TCGArg, TCGArg, TCGArg);
89 TCGOp *tcg_gen_op6(TCGOpcode, TCGType, TCGArg, TCGArg,
90 TCGArg, TCGArg, TCGArg, TCGArg);
91
92 void vec_gen_2(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg);
93 void vec_gen_3(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg, TCGArg);
94 void vec_gen_4(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg, TCGArg, TCGArg);
95 void vec_gen_6(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r,
96 TCGArg a, TCGArg b, TCGArg c, TCGArg d, TCGArg e);
97
98 TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op,
99 TCGOpcode, TCGType, unsigned nargs);
100 TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op,
101 TCGOpcode, TCGType, unsigned nargs);
102
103 /*
104 * For a binary opcode OP, return true if the second input operand allows IMM.
105 */
106 bool tcg_op_imm_match(TCGOpcode op, TCGType type, tcg_target_ulong imm);
107
108 #endif /* TCG_INTERNAL_H */