1 // RUN: %clang_cc1 -verify -ffixed-point %s
2
3 /* We do not yet support long long. No recommended bit widths are given for this
4 * size. */
5
6 long long _Accum longlong_accum; // expected-error{{'long long _Accum' is invalid}}
7 unsigned long long _Accum u_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
8 long long _Fract longlong_fract; // expected-error{{'long long _Fract' is invalid}}
9 unsigned long long _Fract u_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
10
11 _Sat long long _Accum sat_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
12 _Sat unsigned long long _Accum sat_u_longlong_accum; // expected-error{{'long long _Accum' is invalid}}
13 _Sat long long _Fract sat_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
14 _Sat unsigned long long _Fract sat_u_longlong_fract; // expected-error{{'long long _Fract' is invalid}}
15
16
17 /* Although _Complex types work with floating point numbers, the extension
18 * provides no info for complex fixed point types. */
19
20 _Complex signed short _Accum cmplx_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
21 _Complex signed _Accum cmplx_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
22 _Complex signed long _Accum cmplx_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
23 _Complex unsigned short _Accum cmplx_u_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
24 _Complex unsigned _Accum cmplx_u_accum; // expected-error{{'_Complex _Accum' is invalid}}
25 _Complex unsigned long _Accum cmplx_u_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
26 _Complex short _Accum cmplx_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
27 _Complex _Accum cmplx_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
28 _Complex long _Accum cmplx_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
29
30 _Complex signed short _Fract cmplx_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
31 _Complex signed _Fract cmplx_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
32 _Complex signed long _Fract cmplx_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
33 _Complex unsigned short _Fract cmplx_u_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
34 _Complex unsigned _Fract cmplx_u_fract; // expected-error{{'_Complex _Fract' is invalid}}
35 _Complex unsigned long _Fract cmplx_u_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
36 _Complex short _Fract cmplx_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
37 _Complex _Fract cmplx_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
38 _Complex long _Fract cmplx_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
39
40 _Complex _Sat signed short _Accum cmplx_sat_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
41 _Complex _Sat signed _Accum cmplx_sat_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
42 _Complex _Sat signed long _Accum cmplx_sat_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
43 _Complex _Sat unsigned short _Accum cmplx_sat_u_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
44 _Complex _Sat unsigned _Accum cmplx_sat_u_accum; // expected-error{{'_Complex _Accum' is invalid}}
45 _Complex _Sat unsigned long _Accum cmplx_sat_u_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
46 _Complex _Sat short _Accum cmplx_sat_s_short_accum; // expected-error{{'_Complex _Accum' is invalid}}
47 _Complex _Sat _Accum cmplx_sat_s_accum; // expected-error{{'_Complex _Accum' is invalid}}
48 _Complex _Sat long _Accum cmplx_sat_s_long_accum; // expected-error{{'_Complex _Accum' is invalid}}
49
50 _Complex signed short _Fract cmplx_sat_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
51 _Complex signed _Fract cmplx_sat_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
52 _Complex signed long _Fract cmplx_sat_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
53 _Complex unsigned short _Fract cmplx_sat_u_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
54 _Complex unsigned _Fract cmplx_sat_u_fract; // expected-error{{'_Complex _Fract' is invalid}}
55 _Complex unsigned long _Fract cmplx_sat_u_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
56 _Complex short _Fract cmplx_sat_s_short_fract; // expected-error{{'_Complex _Fract' is invalid}}
57 _Complex _Fract cmplx_sat_s_fract; // expected-error{{'_Complex _Fract' is invalid}}
58 _Complex long _Fract cmplx_sat_s_long_fract; // expected-error{{'_Complex _Fract' is invalid}}
59
60 /* Bad combinations */
61 float _Accum f_accum; // expected-error{{cannot combine with previous 'float' declaration specifier}}
62 double _Accum d_accum; // expected-error{{cannot combine with previous 'double' declaration specifier}}
63 _Bool _Accum b_accum; // expected-error{{cannot combine with previous '_Bool' declaration specifier}}
64 char _Accum c_accum; // expected-error{{cannot combine with previous 'char' declaration specifier}}
65 int _Accum i_accum; // expected-error{{cannot combine with previous 'int' declaration specifier}}
66
67 float _Fract f_fract; // expected-error{{cannot combine with previous 'float' declaration specifier}}
68 double _Fract d_fract; // expected-error{{cannot combine with previous 'double' declaration specifier}}
69 _Bool _Fract b_fract; // expected-error{{cannot combine with previous '_Bool' declaration specifier}}
70 char _Fract c_fract; // expected-error{{cannot combine with previous 'char' declaration specifier}}
71 int _Fract i_fract; // expected-error{{cannot combine with previous 'int' declaration specifier}}
72
73 /* Bad saturated combinations */
74 _Sat float f; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'float'}}
75 _Sat double d; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'double'}}
76 _Sat _Bool b; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not '_Bool'}}
77 _Sat char c; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'char'}}
78 _Sat int i; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'int'}}
79 _Sat _Sat _Fract fract; // expected-warning{{duplicate '_Sat' declaration specifier}}
80
81
82 /* Literals that cannot fit into types */
83 signed short _Accum s_short_accum = 256.0hk; // expected-error{{this value is too large for this fixed point type}}
84 unsigned short _Accum u_short_accum = 256.0uhk; // expected-error{{this value is too large for this fixed point type}}
85 signed _Accum s_accum = 65536.0k; // expected-error{{this value is too large for this fixed point type}}
86 unsigned _Accum u_accum = 65536.0uk; // expected-error{{this value is too large for this fixed point type}}
87 signed long _Accum s_long_accum = 4294967296.0lk; // expected-error{{this value is too large for this fixed point type}}
88 unsigned long _Accum u_long_accum = 4294967296.0ulk; // expected-error{{this value is too large for this fixed point type}}
89
90 // Large values from decimal exponents
91 short _Accum short_accum_exp = 2.56e2hk; // expected-error{{this value is too large for this fixed point type}}
92 _Accum accum_exp = 6.5536e4k; // expected-error{{this value is too large for this fixed point type}}
93 long _Accum long_accum_exp = 4.294967296e9lk; // expected-error{{this value is too large for this fixed point type}}
94 unsigned short _Accum u_short_accum_exp = 2.56e2uhk; // expected-error{{this value is too large for this fixed point type}}
95 unsigned _Accum u_accum_exp = 6.5536e4uk; // expected-error{{this value is too large for this fixed point type}}
96 unsigned long _Accum u_long_accum_exp = 4.294967296e9ulk; // expected-error{{this value is too large for this fixed point type}}
97
98 // Large value from hexidecimal exponents
99 short _Accum short_accum_hex_exp = 0x1p8hk; // expected-error{{this value is too large for this fixed point type}}
100 _Accum accum_hex_exp = 0x1p16k; // expected-error{{this value is too large for this fixed point type}}
101 long _Accum long_accum_hex_exp = 0x1p32lk; // expected-error{{this value is too large for this fixed point type}}
102 unsigned short _Accum u_short_accum_hex_exp = 0x1p8uhk; // expected-error{{this value is too large for this fixed point type}}
103 unsigned _Accum u_accum_hex_exp = 0x1p16uk; // expected-error{{this value is too large for this fixed point type}}
104 unsigned long _Accum u_long_accum_hex_exp = 0x1p32ulk; // expected-error{{this value is too large for this fixed point type}}
105
106 // Very large exponent
107 _Accum x = 1e1000000000000000000000000000000000k; // expected-error{{this value is too large for this fixed point type}}
108
109 /* Although _Fract's cannot equal 1, _Fract literals written as 1 are allowed
110 * and the underlying value represents the max value for that _Fract type. */
111 short _Fract short_fract_above_1 = 1.1hr; // expected-error{{this value is too large for this fixed point type}}
112 _Fract fract_above_1 = 1.1r; // expected-error{{this value is too large for this fixed point type}}
113 long _Fract long_fract_above_1 = 1.1lr; // expected-error{{this value is too large for this fixed point type}}
114 unsigned short _Fract u_short_fract_above_1 = 1.1uhr; // expected-error{{this value is too large for this fixed point type}}
115 unsigned _Fract u_fract_above_1 = 1.1ur; // expected-error{{this value is too large for this fixed point type}}
116 unsigned long _Fract u_long_fract_above_1 = 1.1ulr; // expected-error{{this value is too large for this fixed point type}}
117
118 short _Fract short_fract_hex_exp = 0x0.fp1hr; // expected-error{{this value is too large for this fixed point type}}
119 _Fract fract_hex_exp = 0x0.fp1r; // expected-error{{this value is too large for this fixed point type}}
120 long _Fract long_fract_hex_exp = 0x0.fp1lr; // expected-error{{this value is too large for this fixed point type}}
121 unsigned short _Fract u_short_fract_hex_exp = 0x0.fp1uhr; // expected-error{{this value is too large for this fixed point type}}
122 unsigned _Fract u_fract_hex_exp = 0x0.fp1ur; // expected-error{{this value is too large for this fixed point type}}
123 unsigned long _Fract u_long_fract_hex_exp = 0x0.fp1ulr; // expected-error{{this value is too large for this fixed point type}}
124
125 /* Do not allow typedef to be used with typedef'd types */
126 typedef short _Fract shortfract_t;
127 typedef short _Accum shortaccum_t;
128 typedef _Fract fract_t;
129 typedef _Accum accum_t;
130 typedef long _Fract longfract_t;
131 typedef long _Accum longaccum_t;
132 _Sat shortfract_t td_sat_short_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
133 _Sat shortaccum_t td_sat_short_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
134 _Sat fract_t td_sat_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
135 _Sat accum_t td_sat_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
136 _Sat longfract_t td_sat_long_fract; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
137 _Sat longaccum_t td_sat_long_accum; // expected-error{{'_Sat' specifier is only valid on '_Fract' or '_Accum', not 'type-name'}}
138
139 /* Bad suffixes */
140 _Accum fk = 1.0fk; // expected-error{{invalid suffix 'fk' on fixed-point constant}}
141 _Accum kk = 1.0kk; // expected-error{{invalid suffix 'kk' on fixed-point constant}}
142 _Accum rk = 1.0rk; // expected-error{{invalid suffix 'rk' on fixed-point constant}}
143 _Accum rk = 1.0rr; // expected-error{{invalid suffix 'rr' on fixed-point constant}}
144 _Accum qk = 1.0qr; // expected-error{{invalid suffix 'qr' on fixed-point constant}}
145
146 /* Using wrong exponent notation */
147 _Accum dec_with_hex_exp1 = 0.1p10k; // expected-error{{invalid suffix 'p10k' on fixed-point constant}}
148 _Accum dec_with_hex_exp2 = 0.1P10k; // expected-error{{invalid suffix 'P10k' on fixed-point constant}}
149 _Accum hex_with_dex_exp1 = 0x0.1e10k; // expected-error{{hexadecimal floating constant requires an exponent}}
150 _Accum hex_with_dex_exp2 = 0x0.1E10k; // expected-error{{hexadecimal floating constant requires an exponent}}
151
CheckSuffixOnIntegerLiterals()152 void CheckSuffixOnIntegerLiterals() {
153 _Accum short_acc_int;
154 _Accum acc_int;
155 _Accum long_acc_int;
156
157 _Accum u_short_acc_int;
158 _Accum u_acc_int;
159 _Accum u_long_acc_int;
160
161 _Fract short_fract_int;
162 _Fract fract_int;
163 _Fract long_fract_int;
164
165 _Fract u_short_fract_int;
166 _Fract u_fract_int;
167 _Fract u_long_fract_int;
168
169 // Decimal integer literals (non-zero)
170 short_acc_int = 10hk; // expected-error{{invalid suffix 'hk' on integer constant}}
171 acc_int = 10k; // expected-error{{invalid suffix 'k' on integer constant}}
172 long_acc_int = 10lk; // expected-error{{invalid suffix 'lk' on integer constant}}
173
174 u_short_acc_int = 10uhk; // expected-error{{invalid suffix 'uhk' on integer constant}}
175 u_acc_int = 10uk; // expected-error{{invalid suffix 'uk' on integer constant}}
176 u_long_acc_int = 10ulk; // expected-error{{invalid suffix 'ulk' on integer constant}}
177
178 short_fract_int = 10hr; // expected-error{{invalid suffix 'hr' on integer constant}}
179 fract_int = 10r; // expected-error{{invalid suffix 'r' on integer constant}}
180 long_fract_int = 10lr; // expected-error{{invalid suffix 'lr' on integer constant}}
181
182 u_short_fract_int = 10uhr; // expected-error{{invalid suffix 'uhr' on integer constant}}
183 u_fract_int = 10ur; // expected-error{{invalid suffix 'ur' on integer constant}}
184 u_long_fract_int = 10ulr; // expected-error{{invalid suffix 'ulr' on integer constant}}
185
186 // Decimal integer literals (0)
187 short_acc_int = 0hk; // expected-error{{invalid suffix 'hk' on integer constant}}
188 acc_int = 0k; // expected-error{{invalid suffix 'k' on integer constant}}
189 long_acc_int = 0lk; // expected-error{{invalid suffix 'lk' on integer constant}}
190
191 // Decimal integer literals (large number)
192 acc_int = 999999999999999999k; // expected-error{{invalid suffix 'k' on integer constant}}
193 fract_int = 999999999999999999r; // expected-error{{invalid suffix 'r' on integer constant}}
194
195 // Octal integer literals
196 short_acc_int = 010hk; // expected-error{{invalid suffix 'hk' on integer constant}}
197 acc_int = 010k; // expected-error{{invalid suffix 'k' on integer constant}}
198 long_acc_int = 010lk; // expected-error{{invalid suffix 'lk' on integer constant}}
199
200 u_short_acc_int = 010uhk; // expected-error{{invalid suffix 'uhk' on integer constant}}
201 u_acc_int = 010uk; // expected-error{{invalid suffix 'uk' on integer constant}}
202 u_long_acc_int = 010ulk; // expected-error{{invalid suffix 'ulk' on integer constant}}
203
204 short_fract_int = 010hr; // expected-error{{invalid suffix 'hr' on integer constant}}
205 fract_int = 010r; // expected-error{{invalid suffix 'r' on integer constant}}
206 long_fract_int = 010lr; // expected-error{{invalid suffix 'lr' on integer constant}}
207
208 u_short_fract_int = 010uhr; // expected-error{{invalid suffix 'uhr' on integer constant}}
209 u_fract_int = 010ur; // expected-error{{invalid suffix 'ur' on integer constant}}
210 u_long_fract_int = 010ulr; // expected-error{{invalid suffix 'ulr' on integer constant}}
211
212 // Hexadecimal integer literals
213 short_acc_int = 0x10hk; // expected-error{{invalid suffix 'hk' on integer constant}}
214 acc_int = 0x10k; // expected-error{{invalid suffix 'k' on integer constant}}
215 long_acc_int = 0x10lk; // expected-error{{invalid suffix 'lk' on integer constant}}
216
217 u_short_acc_int = 0x10uhk; // expected-error{{invalid suffix 'uhk' on integer constant}}
218 u_acc_int = 0x10uk; // expected-error{{invalid suffix 'uk' on integer constant}}
219 u_long_acc_int = 0x10ulk; // expected-error{{invalid suffix 'ulk' on integer constant}}
220
221 short_fract_int = 0x10hr; // expected-error{{invalid suffix 'hr' on integer constant}}
222 fract_int = 0x10r; // expected-error{{invalid suffix 'r' on integer constant}}
223 long_fract_int = 0x10lr; // expected-error{{invalid suffix 'lr' on integer constant}}
224
225 u_short_fract_int = 0x10uhr; // expected-error{{invalid suffix 'uhr' on integer constant}}
226 u_fract_int = 0x10ur; // expected-error{{invalid suffix 'ur' on integer constant}}
227 u_long_fract_int = 0x10ulr; // expected-error{{invalid suffix 'ulr' on integer constant}}
228
229 // Using auto
230 auto auto_fract = 0r; // expected-error{{invalid suffix 'r' on integer constant}}
231 // expected-warning@-1{{type specifier missing, defaults to 'int'}}
232 auto auto_accum = 0k; // expected-error{{invalid suffix 'k' on integer constant}}
233 // expected-warning@-1{{type specifier missing, defaults to 'int'}}
234 }
235
236 // Ok conversions
237 int i_const = -2.5hk;
238 _Sat short _Accum sat_sa_const2 = 256.0k;
239 _Sat unsigned short _Accum sat_usa_const = -1.0hk;
240 short _Accum sa_const3 = 2;
241 short _Accum sa_const4 = -2;
242
243 // Overflow
244 short _Accum sa_const = 256.0k; // expected-warning{{implicit conversion from 256.0 cannot fit within the range of values for 'short _Accum'}}
245 short _Fract sf_const = 1.0hk; // expected-warning{{implicit conversion from 1.0 cannot fit within the range of values for 'short _Fract'}}
246 unsigned _Accum ua_const = -1.0k; // expected-warning{{implicit conversion from -1.0 cannot fit within the range of values for 'unsigned _Accum'}}
247 short _Accum sa_const2 = 128.0k + 128.0k; // expected-warning{{implicit conversion from 256.0 cannot fit within the range of values for 'short _Accum'}}
248 short s_const = 65536.0lk; // expected-warning{{implicit conversion from 65536.0 cannot fit within the range of values for 'short'}}
249 unsigned u_const = -2.5hk; // expected-warning{{implicit conversion from -2.5 cannot fit within the range of values for 'unsigned int'}}
250 char c_const = 256.0uk; // expected-warning{{implicit conversion from 256.0 cannot fit within the range of values for 'char'}}
251 short _Accum sa_const5 = 256; // expected-warning{{implicit conversion from 256 cannot fit within the range of values for 'short _Accum'}}
252 unsigned short _Accum usa_const2 = -2; // expected-warning{{implicit conversion from -2 cannot fit within the range of values for 'unsigned short _Accum'}}
253
254 short _Accum add_ovf1 = 255.0hk + 20.0hk; // expected-warning {{overflow in expression; result is -237.0 with type 'short _Accum'}}
255 short _Accum add_ovf2 = 10 + 0.5hr; // expected-warning {{overflow in expression; result is 0.5 with type 'short _Fract'}}
256 short _Accum sub_ovf1 = 16.0uhk - 32.0uhk; // expected-warning {{overflow in expression; result is 240.0 with type 'unsigned short _Accum'}}
257 short _Accum sub_ovf2 = -255.0hk - 20; // expected-warning {{overflow in expression; result is 237.0 with type 'short _Accum'}}
258 short _Accum mul_ovf1 = 200.0uhk * 10.0uhk; // expected-warning {{overflow in expression; result is 208.0 with type 'unsigned short _Accum'}}
259 short _Accum mul_ovf2 = (-0.5hr - 0.5hr) * (-0.5hr - 0.5hr); // expected-warning {{overflow in expression; result is -1.0 with type 'short _Fract'}}
260 short _Accum div_ovf1 = 255.0hk / 0.5hk; // expected-warning {{overflow in expression; result is -2.0 with type 'short _Accum'}}
261
262 short _Accum shl_ovf1 = 255.0hk << 8; // expected-warning {{overflow in expression; result is -256.0 with type 'short _Accum'}}
263 short _Fract shl_ovf2 = -0.25hr << 3; // expected-warning {{overflow in expression; result is 0.0 with type 'short _Fract'}}
264 unsigned short _Accum shl_ovf3 = 100.5uhk << 3; // expected-warning {{overflow in expression; result is 36.0 with type 'unsigned short _Accum'}}
265 short _Fract shl_ovf4 = 0.25hr << 2; // expected-warning {{overflow in expression; result is -1.0 with type 'short _Fract'}}
266
267 _Accum shl_bw1 = 0.000091552734375k << 32; // expected-warning {{shift count >= width of type}} \
268 expected-warning {{overflow in expression; result is -65536.0 with type '_Accum'}}
269 unsigned _Fract shl_bw2 = 0.65ur << 16; // expected-warning {{shift count >= width of type}} \
270 expected-warning {{overflow in expression; result is 0.0 with type 'unsigned _Fract'}}
271 _Sat short _Accum shl_bw3 = (_Sat short _Accum)80.0hk << 17; // expected-warning {{shift count >= width of type}}
272 short _Accum shr_bw1 = 1.0hk >> 17; // expected-warning {{shift count >= width of type}}
273
274 _Accum shl_neg1 = 25.5k << -5; // expected-warning {{shift count is negative}} \
275 // expected-warning {{overflow in expression; result is 0.0 with type '_Accum'}}
276 _Accum shr_neg1 = 8.75k >> -9; // expected-warning {{shift count is negative}}
277 _Fract shl_neg2 = 0.25r << -17; // expected-warning {{shift count is negative}} \
278 // expected-warning {{overflow in expression; result is 0.0 with type '_Fract'}}
279
280 // No warnings for saturation
281 short _Fract add_sat = (_Sat short _Fract)0.5hr + 0.5hr;
282 short _Accum sub_sat = (_Sat short _Accum)-200.0hk - 80.0hk;
283 short _Accum mul_sat = (_Sat short _Accum)80.0hk * 10.0hk;
284 short _Fract div_sat = (_Sat short _Fract)0.9hr / 0.1hr;
285 short _Accum shl_sat = (_Sat short _Accum)200.0hk << 5;
286
287 // Division by zero
288 short _Accum div_zero = 4.5k / 0.0lr; // expected-error {{initializer element is not a compile-time constant}}
289