xref: /openbmc/qemu/tcg/ppc/tcg-target-has.h (revision 3ad5d4ccb4bdebdff4e90957bb2b8a93e5e418e2)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Define target-specific opcode support
4  * Copyright (c) 2008 Fabrice Bellard
5  */
6 
7 #ifndef TCG_TARGET_HAS_H
8 #define TCG_TARGET_HAS_H
9 
10 #include "host/cpuinfo.h"
11 
12 #define have_isa_2_06  (cpuinfo & CPUINFO_V2_06)
13 #define have_isa_2_07  (cpuinfo & CPUINFO_V2_07)
14 #define have_isa_3_00  (cpuinfo & CPUINFO_V3_0)
15 #define have_isa_3_10  (cpuinfo & CPUINFO_V3_1)
16 #define have_altivec   (cpuinfo & CPUINFO_ALTIVEC)
17 #define have_vsx       (cpuinfo & CPUINFO_VSX)
18 
19 /* optional instructions */
20 #define TCG_TARGET_HAS_extract2_i32     0
21 #define TCG_TARGET_HAS_qemu_st8_i32     0
22 
23 #if TCG_TARGET_REG_BITS == 64
24 #define TCG_TARGET_HAS_add2_i32         0
25 #define TCG_TARGET_HAS_sub2_i32         0
26 #define TCG_TARGET_HAS_extr_i64_i32     0
27 #define TCG_TARGET_HAS_extract2_i64     0
28 #define TCG_TARGET_HAS_add2_i64         1
29 #define TCG_TARGET_HAS_sub2_i64         1
30 #endif
31 
32 #define TCG_TARGET_HAS_qemu_ldst_i128   \
33     (TCG_TARGET_REG_BITS == 64 && have_isa_2_07)
34 
35 #define TCG_TARGET_HAS_tst              1
36 
37 /*
38  * While technically Altivec could support V64, it has no 64-bit store
39  * instruction and substituting two 32-bit stores makes the generated
40  * code quite large.
41  */
42 #define TCG_TARGET_HAS_v64              have_vsx
43 #define TCG_TARGET_HAS_v128             have_altivec
44 #define TCG_TARGET_HAS_v256             0
45 
46 #define TCG_TARGET_HAS_andc_vec         1
47 #define TCG_TARGET_HAS_orc_vec          have_isa_2_07
48 #define TCG_TARGET_HAS_nand_vec         have_isa_2_07
49 #define TCG_TARGET_HAS_nor_vec          1
50 #define TCG_TARGET_HAS_eqv_vec          have_isa_2_07
51 #define TCG_TARGET_HAS_not_vec          1
52 #define TCG_TARGET_HAS_neg_vec          have_isa_3_00
53 #define TCG_TARGET_HAS_abs_vec          0
54 #define TCG_TARGET_HAS_roti_vec         0
55 #define TCG_TARGET_HAS_rots_vec         0
56 #define TCG_TARGET_HAS_rotv_vec         1
57 #define TCG_TARGET_HAS_shi_vec          0
58 #define TCG_TARGET_HAS_shs_vec          0
59 #define TCG_TARGET_HAS_shv_vec          1
60 #define TCG_TARGET_HAS_mul_vec          1
61 #define TCG_TARGET_HAS_sat_vec          1
62 #define TCG_TARGET_HAS_minmax_vec       1
63 #define TCG_TARGET_HAS_bitsel_vec       have_vsx
64 #define TCG_TARGET_HAS_cmpsel_vec       1
65 #define TCG_TARGET_HAS_tst_vec          0
66 
67 #define TCG_TARGET_extract_valid(type, ofs, len)   1
68 #define TCG_TARGET_deposit_valid(type, ofs, len)   1
69 
70 static inline bool
71 tcg_target_sextract_valid(TCGType type, unsigned ofs, unsigned len)
72 {
73     if (type == TCG_TYPE_I64 && ofs + len == 32) {
74         return true;
75     }
76     return ofs == 0 && (len == 8 || len == 16);
77 }
78 #define TCG_TARGET_sextract_valid  tcg_target_sextract_valid
79 
80 #endif
81