xref: /openbmc/qemu/tcg/arm/tcg-target-has.h (revision 6aba25ebb9eb6e1e86398294694aa0ab1f12076f)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Define target-specific opcode support
4  * Copyright (c) 2008 Fabrice Bellard
5  * Copyright (c) 2008 Andrzej Zaborowski
6  */
7 
8 #ifndef TCG_TARGET_HAS_H
9 #define TCG_TARGET_HAS_H
10 
11 extern int arm_arch;
12 
13 #define use_armv7_instructions  (__ARM_ARCH >= 7 || arm_arch >= 7)
14 
15 #ifdef __ARM_ARCH_EXT_IDIV__
16 #define use_idiv_instructions  1
17 #else
18 extern bool use_idiv_instructions;
19 #endif
20 #ifdef __ARM_NEON__
21 #define use_neon_instructions  1
22 #else
23 extern bool use_neon_instructions;
24 #endif
25 
26 /* optional instructions */
27 #define TCG_TARGET_HAS_bswap16_i32      1
28 #define TCG_TARGET_HAS_bswap32_i32      1
29 #define TCG_TARGET_HAS_not_i32          1
30 #define TCG_TARGET_HAS_rot_i32          1
31 #define TCG_TARGET_HAS_eqv_i32          0
32 #define TCG_TARGET_HAS_nand_i32         0
33 #define TCG_TARGET_HAS_nor_i32          0
34 #define TCG_TARGET_HAS_clz_i32          1
35 #define TCG_TARGET_HAS_ctz_i32          use_armv7_instructions
36 #define TCG_TARGET_HAS_ctpop_i32        0
37 #define TCG_TARGET_HAS_extract2_i32     1
38 #define TCG_TARGET_HAS_negsetcond_i32   1
39 #define TCG_TARGET_HAS_mulu2_i32        1
40 #define TCG_TARGET_HAS_muls2_i32        1
41 #define TCG_TARGET_HAS_muluh_i32        0
42 #define TCG_TARGET_HAS_mulsh_i32        0
43 #define TCG_TARGET_HAS_div_i32          use_idiv_instructions
44 #define TCG_TARGET_HAS_rem_i32          0
45 #define TCG_TARGET_HAS_qemu_st8_i32     0
46 
47 #define TCG_TARGET_HAS_qemu_ldst_i128   0
48 
49 #define TCG_TARGET_HAS_tst              1
50 
51 #define TCG_TARGET_HAS_v64              use_neon_instructions
52 #define TCG_TARGET_HAS_v128             use_neon_instructions
53 #define TCG_TARGET_HAS_v256             0
54 
55 #define TCG_TARGET_HAS_andc_vec         1
56 #define TCG_TARGET_HAS_orc_vec          1
57 #define TCG_TARGET_HAS_nand_vec         0
58 #define TCG_TARGET_HAS_nor_vec          0
59 #define TCG_TARGET_HAS_eqv_vec          0
60 #define TCG_TARGET_HAS_not_vec          1
61 #define TCG_TARGET_HAS_neg_vec          1
62 #define TCG_TARGET_HAS_abs_vec          1
63 #define TCG_TARGET_HAS_roti_vec         0
64 #define TCG_TARGET_HAS_rots_vec         0
65 #define TCG_TARGET_HAS_rotv_vec         0
66 #define TCG_TARGET_HAS_shi_vec          1
67 #define TCG_TARGET_HAS_shs_vec          0
68 #define TCG_TARGET_HAS_shv_vec          0
69 #define TCG_TARGET_HAS_mul_vec          1
70 #define TCG_TARGET_HAS_sat_vec          1
71 #define TCG_TARGET_HAS_minmax_vec       1
72 #define TCG_TARGET_HAS_bitsel_vec       1
73 #define TCG_TARGET_HAS_cmpsel_vec       0
74 #define TCG_TARGET_HAS_tst_vec          1
75 
76 static inline bool
77 tcg_target_extract_valid(TCGType type, unsigned ofs, unsigned len)
78 {
79     if (use_armv7_instructions) {
80         return true;  /* SBFX or UBFX */
81     }
82     switch (len) {
83     case 8:   /* SXTB or UXTB */
84     case 16:  /* SXTH or UXTH */
85         return (ofs % 8) == 0;
86     }
87     return false;
88 }
89 
90 #define TCG_TARGET_extract_valid   tcg_target_extract_valid
91 #define TCG_TARGET_sextract_valid  tcg_target_extract_valid
92 #define TCG_TARGET_deposit_valid(type, ofs, len)  use_armv7_instructions
93 
94 #endif
95