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a7812ae4 PB |
1 | /* Helper file for declaring TCG helper functions. |
2 | Should be included at the start and end of target-foo/helper.h. | |
3 | ||
4 | Targets should use DEF_HELPER_N and DEF_HELPER_FLAGS_N to declare helper | |
5 | functions. Names should be specified without the helper_ prefix, and | |
6 | the return and argument types specified. 3 basic types are understood | |
7 | (i32, i64 and ptr). Additional aliases are provided for convenience and | |
8 | to match the types used by the C helper implementation. | |
9 | ||
10 | The target helper.h should be included in all files that use/define | |
11 | helper functions. THis will ensure that function prototypes are | |
12 | consistent. In addition it should be included an extra two times for | |
13 | helper.c, defining: | |
14 | GEN_HELPER 1 to produce op generation functions (gen_helper_*) | |
15 | GEN_HELPER 2 to do runtime registration helper functions. | |
16 | */ | |
17 | ||
18 | #ifndef DEF_HELPER_H | |
19 | #define DEF_HELPER_H 1 | |
20 | ||
21 | #define HELPER(name) glue(helper_, name) | |
22 | ||
23 | #define GET_TCGV_i32 GET_TCGV_I32 | |
24 | #define GET_TCGV_i64 GET_TCGV_I64 | |
25 | #define GET_TCGV_ptr GET_TCGV_PTR | |
26 | ||
27 | /* Some types that make sense in C, but not for TCG. */ | |
28 | #define dh_alias_i32 i32 | |
29 | #define dh_alias_s32 i32 | |
30 | #define dh_alias_int i32 | |
31 | #define dh_alias_i64 i64 | |
32 | #define dh_alias_s64 i64 | |
33 | #define dh_alias_f32 i32 | |
34 | #define dh_alias_f64 i64 | |
35 | #if TARGET_LONG_BITS == 32 | |
36 | #define dh_alias_tl i32 | |
37 | #else | |
38 | #define dh_alias_tl i64 | |
39 | #endif | |
40 | #define dh_alias_ptr ptr | |
41 | #define dh_alias_void void | |
42 | #define dh_alias_env ptr | |
43 | #define dh_alias(t) glue(dh_alias_, t) | |
44 | ||
45 | #define dh_ctype_i32 uint32_t | |
46 | #define dh_ctype_s32 int32_t | |
47 | #define dh_ctype_int int | |
48 | #define dh_ctype_i64 uint64_t | |
49 | #define dh_ctype_s64 int64_t | |
50 | #define dh_ctype_f32 float32 | |
51 | #define dh_ctype_f64 float64 | |
52 | #define dh_ctype_tl target_ulong | |
53 | #define dh_ctype_ptr void * | |
54 | #define dh_ctype_void void | |
9349b4f9 | 55 | #define dh_ctype_env CPUArchState * |
a7812ae4 PB |
56 | #define dh_ctype(t) dh_ctype_##t |
57 | ||
58 | /* We can't use glue() here because it falls foul of C preprocessor | |
59 | recursive expansion rules. */ | |
60 | #define dh_retvar_decl0_void void | |
61 | #define dh_retvar_decl0_i32 TCGv_i32 retval | |
62 | #define dh_retvar_decl0_i64 TCGv_i64 retval | |
9c9c310a | 63 | #define dh_retvar_decl0_ptr TCGv_ptr retval |
a7812ae4 PB |
64 | #define dh_retvar_decl0(t) glue(dh_retvar_decl0_, dh_alias(t)) |
65 | ||
66 | #define dh_retvar_decl_void | |
67 | #define dh_retvar_decl_i32 TCGv_i32 retval, | |
68 | #define dh_retvar_decl_i64 TCGv_i64 retval, | |
9c9c310a | 69 | #define dh_retvar_decl_ptr TCGv_ptr retval, |
a7812ae4 PB |
70 | #define dh_retvar_decl(t) glue(dh_retvar_decl_, dh_alias(t)) |
71 | ||
72 | #define dh_retvar_void TCG_CALL_DUMMY_ARG | |
73 | #define dh_retvar_i32 GET_TCGV_i32(retval) | |
74 | #define dh_retvar_i64 GET_TCGV_i64(retval) | |
75 | #define dh_retvar_ptr GET_TCGV_ptr(retval) | |
76 | #define dh_retvar(t) glue(dh_retvar_, dh_alias(t)) | |
77 | ||
78 | #define dh_is_64bit_void 0 | |
79 | #define dh_is_64bit_i32 0 | |
80 | #define dh_is_64bit_i64 1 | |
81 | #define dh_is_64bit_ptr (TCG_TARGET_REG_BITS == 64) | |
82 | #define dh_is_64bit(t) glue(dh_is_64bit_, dh_alias(t)) | |
83 | ||
2bece2c8 RH |
84 | #define dh_is_signed_void 0 |
85 | #define dh_is_signed_i32 0 | |
86 | #define dh_is_signed_s32 1 | |
87 | #define dh_is_signed_i64 0 | |
88 | #define dh_is_signed_s64 1 | |
89 | #define dh_is_signed_f32 0 | |
90 | #define dh_is_signed_f64 0 | |
91 | #define dh_is_signed_tl 0 | |
92 | #define dh_is_signed_int 1 | |
93 | /* ??? This is highly specific to the host cpu. There are even special | |
94 | extension instructions that may be required, e.g. ia64's addp4. But | |
95 | for now we don't support any 64-bit targets with 32-bit pointers. */ | |
96 | #define dh_is_signed_ptr 0 | |
97 | #define dh_is_signed_env dh_is_signed_ptr | |
98 | #define dh_is_signed(t) dh_is_signed_##t | |
99 | ||
100 | #define dh_sizemask(t, n) \ | |
101 | sizemask |= dh_is_64bit(t) << (n*2); \ | |
102 | sizemask |= dh_is_signed(t) << (n*2+1) | |
103 | ||
a7812ae4 PB |
104 | #define dh_arg(t, n) \ |
105 | args[n - 1] = glue(GET_TCGV_, dh_alias(t))(glue(arg, n)); \ | |
2bece2c8 | 106 | dh_sizemask(t, n) |
a7812ae4 PB |
107 | |
108 | #define dh_arg_decl(t, n) glue(TCGv_, dh_alias(t)) glue(arg, n) | |
109 | ||
110 | ||
111 | #define DEF_HELPER_0(name, ret) \ | |
112 | DEF_HELPER_FLAGS_0(name, 0, ret) | |
113 | #define DEF_HELPER_1(name, ret, t1) \ | |
114 | DEF_HELPER_FLAGS_1(name, 0, ret, t1) | |
115 | #define DEF_HELPER_2(name, ret, t1, t2) \ | |
116 | DEF_HELPER_FLAGS_2(name, 0, ret, t1, t2) | |
117 | #define DEF_HELPER_3(name, ret, t1, t2, t3) \ | |
118 | DEF_HELPER_FLAGS_3(name, 0, ret, t1, t2, t3) | |
119 | #define DEF_HELPER_4(name, ret, t1, t2, t3, t4) \ | |
120 | DEF_HELPER_FLAGS_4(name, 0, ret, t1, t2, t3, t4) | |
57d585f7 BS |
121 | #define DEF_HELPER_5(name, ret, t1, t2, t3, t4, t5) \ |
122 | DEF_HELPER_FLAGS_5(name, 0, ret, t1, t2, t3, t4, t5) | |
a7812ae4 PB |
123 | |
124 | #endif /* DEF_HELPER_H */ | |
125 | ||
126 | #ifndef GEN_HELPER | |
127 | /* Function prototypes. */ | |
128 | ||
129 | #define DEF_HELPER_FLAGS_0(name, flags, ret) \ | |
130 | dh_ctype(ret) HELPER(name) (void); | |
131 | ||
132 | #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ | |
133 | dh_ctype(ret) HELPER(name) (dh_ctype(t1)); | |
134 | ||
135 | #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ | |
136 | dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)); | |
137 | ||
138 | #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ | |
139 | dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3)); | |
140 | ||
141 | #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ | |
142 | dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ | |
143 | dh_ctype(t4)); | |
144 | ||
57d585f7 BS |
145 | #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
146 | dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), \ | |
147 | dh_ctype(t4), dh_ctype(t5)); | |
148 | ||
a7812ae4 PB |
149 | #undef GEN_HELPER |
150 | #define GEN_HELPER -1 | |
151 | ||
152 | #elif GEN_HELPER == 1 | |
153 | /* Gen functions. */ | |
154 | ||
155 | #define DEF_HELPER_FLAGS_0(name, flags, ret) \ | |
156 | static inline void glue(gen_helper_, name)(dh_retvar_decl0(ret)) \ | |
157 | { \ | |
158 | int sizemask; \ | |
159 | sizemask = dh_is_64bit(ret); \ | |
160 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 0, NULL); \ | |
161 | } | |
162 | ||
163 | #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ | |
164 | static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1)) \ | |
165 | { \ | |
166 | TCGArg args[1]; \ | |
2bece2c8 RH |
167 | int sizemask = 0; \ |
168 | dh_sizemask(ret, 0); \ | |
a7812ae4 PB |
169 | dh_arg(t1, 1); \ |
170 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 1, args); \ | |
171 | } | |
172 | ||
173 | #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ | |
174 | static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ | |
175 | dh_arg_decl(t2, 2)) \ | |
176 | { \ | |
177 | TCGArg args[2]; \ | |
2bece2c8 RH |
178 | int sizemask = 0; \ |
179 | dh_sizemask(ret, 0); \ | |
a7812ae4 PB |
180 | dh_arg(t1, 1); \ |
181 | dh_arg(t2, 2); \ | |
182 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 2, args); \ | |
183 | } | |
184 | ||
185 | #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ | |
186 | static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ | |
187 | dh_arg_decl(t2, 2), dh_arg_decl(t3, 3)) \ | |
188 | { \ | |
189 | TCGArg args[3]; \ | |
2bece2c8 RH |
190 | int sizemask = 0; \ |
191 | dh_sizemask(ret, 0); \ | |
a7812ae4 PB |
192 | dh_arg(t1, 1); \ |
193 | dh_arg(t2, 2); \ | |
194 | dh_arg(t3, 3); \ | |
195 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 3, args); \ | |
196 | } | |
197 | ||
198 | #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ | |
199 | static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) dh_arg_decl(t1, 1), \ | |
200 | dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), dh_arg_decl(t4, 4)) \ | |
201 | { \ | |
202 | TCGArg args[4]; \ | |
2bece2c8 RH |
203 | int sizemask = 0; \ |
204 | dh_sizemask(ret, 0); \ | |
a7812ae4 PB |
205 | dh_arg(t1, 1); \ |
206 | dh_arg(t2, 2); \ | |
207 | dh_arg(t3, 3); \ | |
208 | dh_arg(t4, 4); \ | |
209 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 4, args); \ | |
210 | } | |
211 | ||
57d585f7 BS |
212 | #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
213 | static inline void glue(gen_helper_, name)(dh_retvar_decl(ret) \ | |
214 | dh_arg_decl(t1, 1), dh_arg_decl(t2, 2), dh_arg_decl(t3, 3), \ | |
215 | dh_arg_decl(t4, 4), dh_arg_decl(t5, 5)) \ | |
216 | { \ | |
217 | TCGArg args[5]; \ | |
218 | int sizemask = 0; \ | |
219 | dh_sizemask(ret, 0); \ | |
220 | dh_arg(t1, 1); \ | |
221 | dh_arg(t2, 2); \ | |
222 | dh_arg(t3, 3); \ | |
223 | dh_arg(t4, 4); \ | |
224 | dh_arg(t5, 5); \ | |
225 | tcg_gen_helperN(HELPER(name), flags, sizemask, dh_retvar(ret), 5, args); \ | |
226 | } | |
227 | ||
a7812ae4 PB |
228 | #undef GEN_HELPER |
229 | #define GEN_HELPER -1 | |
230 | ||
231 | #elif GEN_HELPER == 2 | |
232 | /* Register helpers. */ | |
233 | ||
234 | #define DEF_HELPER_FLAGS_0(name, flags, ret) \ | |
235 | tcg_register_helper(HELPER(name), #name); | |
236 | ||
237 | #define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \ | |
238 | DEF_HELPER_FLAGS_0(name, flags, ret) | |
239 | ||
240 | #define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \ | |
241 | DEF_HELPER_FLAGS_0(name, flags, ret) | |
242 | ||
243 | #define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \ | |
244 | DEF_HELPER_FLAGS_0(name, flags, ret) | |
245 | ||
246 | #define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \ | |
247 | DEF_HELPER_FLAGS_0(name, flags, ret) | |
248 | ||
57d585f7 BS |
249 | #define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \ |
250 | DEF_HELPER_FLAGS_0(name, flags, ret) | |
251 | ||
a7812ae4 PB |
252 | #undef GEN_HELPER |
253 | #define GEN_HELPER -1 | |
254 | ||
255 | #elif GEN_HELPER == -1 | |
256 | /* Undefine macros. */ | |
257 | ||
258 | #undef DEF_HELPER_FLAGS_0 | |
259 | #undef DEF_HELPER_FLAGS_1 | |
260 | #undef DEF_HELPER_FLAGS_2 | |
261 | #undef DEF_HELPER_FLAGS_3 | |
262 | #undef DEF_HELPER_FLAGS_4 | |
57d585f7 | 263 | #undef DEF_HELPER_FLAGS_5 |
a7812ae4 PB |
264 | #undef GEN_HELPER |
265 | ||
266 | #endif |