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 void tcg_region_init(size_t tb_size, int splitwx, unsigned max_cpus);
38 bool tcg_region_alloc(TCGContext *s);
39 void tcg_region_initial_alloc(TCGContext *s);
40 void tcg_region_prologue_set(TCGContext *s);
41
tcg_call_func(TCGOp * op)42 static inline void *tcg_call_func(TCGOp *op)
43 {
44 return (void *)(uintptr_t)op->args[TCGOP_CALLO(op) + TCGOP_CALLI(op)];
45 }
46
tcg_call_info(TCGOp * op)47 static inline const TCGHelperInfo *tcg_call_info(TCGOp *op)
48 {
49 return (void *)(uintptr_t)op->args[TCGOP_CALLO(op) + TCGOP_CALLI(op) + 1];
50 }
51
tcg_call_flags(TCGOp * op)52 static inline unsigned tcg_call_flags(TCGOp *op)
53 {
54 return tcg_call_info(op)->flags;
55 }
56
57 #if TCG_TARGET_REG_BITS == 32
TCGV_LOW(TCGv_i64 t)58 static inline TCGv_i32 TCGV_LOW(TCGv_i64 t)
59 {
60 return temp_tcgv_i32(tcgv_i64_temp(t) + HOST_BIG_ENDIAN);
61 }
TCGV_HIGH(TCGv_i64 t)62 static inline TCGv_i32 TCGV_HIGH(TCGv_i64 t)
63 {
64 return temp_tcgv_i32(tcgv_i64_temp(t) + !HOST_BIG_ENDIAN);
65 }
66 #else
67 TCGv_i32 TCGV_LOW(TCGv_i64) QEMU_ERROR("32-bit code path is reachable");
68 TCGv_i32 TCGV_HIGH(TCGv_i64) QEMU_ERROR("32-bit code path is reachable");
69 #endif
70
TCGV128_LOW(TCGv_i128 t)71 static inline TCGv_i64 TCGV128_LOW(TCGv_i128 t)
72 {
73 /* For 32-bit, offset by 2, which may then have TCGV_{LOW,HIGH} applied. */
74 int o = HOST_BIG_ENDIAN ? 64 / TCG_TARGET_REG_BITS : 0;
75 return temp_tcgv_i64(tcgv_i128_temp(t) + o);
76 }
77
TCGV128_HIGH(TCGv_i128 t)78 static inline TCGv_i64 TCGV128_HIGH(TCGv_i128 t)
79 {
80 int o = HOST_BIG_ENDIAN ? 0 : 64 / TCG_TARGET_REG_BITS;
81 return temp_tcgv_i64(tcgv_i128_temp(t) + o);
82 }
83
84 bool tcg_target_has_memory_bswap(MemOp memop);
85
86 TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind);
87
88 /*
89 * Locate or create a read-only temporary that is a constant.
90 * This kind of temporary need not be freed, but for convenience
91 * will be silently ignored by tcg_temp_free_*.
92 */
93 TCGTemp *tcg_constant_internal(TCGType type, int64_t val);
94
95 void tcg_gen_op1(TCGOpcode, TCGArg);
96 void tcg_gen_op2(TCGOpcode, TCGArg, TCGArg);
97 void tcg_gen_op3(TCGOpcode, TCGArg, TCGArg, TCGArg);
98 void tcg_gen_op4(TCGOpcode, TCGArg, TCGArg, TCGArg, TCGArg);
99 void tcg_gen_op5(TCGOpcode, TCGArg, TCGArg, TCGArg, TCGArg, TCGArg);
100 void tcg_gen_op6(TCGOpcode, TCGArg, TCGArg, TCGArg, TCGArg, TCGArg, TCGArg);
101
102 void vec_gen_2(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg);
103 void vec_gen_3(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg, TCGArg);
104 void vec_gen_4(TCGOpcode, TCGType, unsigned, TCGArg, TCGArg, TCGArg, TCGArg);
105
106 #endif /* TCG_INTERNAL_H */
107