1 /* Copyright (C) 2006, 2007 Free Software Foundation.
3 Test things that should block GCC from optimizing compile-time
4 constants passed to a builtin transcendental function.
6 Origin: Kaveh R. Ghazi, October 22, 2006. */
8 /* { dg-do compile } */
9 /* { dg-options "-fdump-tree-original" } */
11 extern void foof (float);
12 extern void foo (double);
13 extern void fool (long double);
15 #define TESTIT(FUNC, ARG) do { \
16 foof (__builtin_##FUNC##f (ARG##F)); \
17 foo (__builtin_##FUNC (ARG)); \
18 fool (__builtin_##FUNC##l (ARG##L)); \
21 #define TESTIT2(FUNC, ARG1, ARG2) do { \
22 foof (__builtin_##FUNC##f (ARG1##F, ARG2##F)); \
23 foo (__builtin_##FUNC (ARG1, ARG2)); \
24 fool (__builtin_##FUNC##l (ARG1##L, ARG2##L)); \
27 #define TESTIT2_I1(FUNC, ARG1, ARG2) do { \
28 foof (__builtin_##FUNC##f (ARG1, ARG2##F)); \
29 foo (__builtin_##FUNC (ARG1, ARG2)); \
30 fool (__builtin_##FUNC##l (ARG1, ARG2##L)); \
33 #define TESTIT2_I2ALL(FUNC, ARGF, MAXF, ARGD, MAXD, ARGLD, MAXLD) do { \
34 foof (__builtin_##FUNC##f (ARGF, MAXF)); \
35 foo (__builtin_##FUNC (ARGD, MAXD)); \
36 fool (__builtin_##FUNC##l (ARGLD, MAXLD)); \
39 #define TESTIT2_I2(FUNC, ARG1, ARG2) do { \
40 foof (__builtin_##FUNC##f (ARG1##F, ARG2)); \
41 foo (__builtin_##FUNC (ARG1, ARG2)); \
42 fool (__builtin_##FUNC##l (ARG1##L, ARG2)); \
45 #define TESTIT_REMQUO(ARG1, ARG2) do { \
47 foof (__builtin_remquof (ARG1##F, ARG2##F, &quo)); \
48 foo (__builtin_remquo (ARG1, ARG2, &quo)); \
49 fool (__builtin_remquol (ARG1##L, ARG2##L, &quo)); \
52 #define TESTIT_REENT(FUNC,ARG1) do { \
54 foof (__builtin_##FUNC##f_r (ARG1##F, &sg)); \
55 foo (__builtin_##FUNC##_r (ARG1, &sg)); \
56 fool (__builtin_##FUNC##l_r (ARG1##L, &sg)); \
61 /* An argument of NaN is not evaluated at compile-time. */
62 foof (__builtin_exp2f (__builtin_nanf("")));
63 foo (__builtin_exp2 (__builtin_nan("")));
64 fool (__builtin_exp2l (__builtin_nanl("")));
66 /* An argument of Inf/-Inf is not evaluated at compile-time. */
67 foof (__builtin_exp2f (__builtin_inff()));
68 foo (__builtin_exp2 (__builtin_inf()));
69 fool (__builtin_exp2l (__builtin_infl()));
70 foof (__builtin_exp2f (-__builtin_inff()));
71 foo (__builtin_exp2 (-__builtin_inf()));
72 fool (__builtin_exp2l (-__builtin_infl()));
74 /* Result overflows MPFR, which in version 2.2.x has 30 exponent bits. */
75 TESTIT (exp2, 0x1p50);
76 /* Result underflows MPFR, which in version 2.2.x has 30 exponent bits. */
77 TESTIT (exp2, -0x1p50);
79 /* Result overflows GCC's REAL_VALUE_TYPE, which has 26 exponent bits. */
80 TESTIT (exp2, 0x1p28);
81 /* Result underflows GCC's REAL_VALUE_TYPE, which has 26 exponent bits. */
82 TESTIT (exp2, -0x1p28);
84 /* Result overflows (even an extended) C double's mode. */
85 TESTIT (exp2, 0x1p24);
86 /* Result underflows (even an extended) C double's mode. */
87 TESTIT (exp2, -0x1p24);
89 /* Ensure that normal arguments/results are folded. */
93 /* The asin arg must be [-1 ... 1] inclusive. */
97 /* The acos arg must be [-1 ... 1] inclusive. */
101 /* The acosh arg must be [1 ... Inf] inclusive. */
104 /* The atanh arg must be [-1 ... 1] EXclusive. */
105 TESTIT (atanh, -1.0);
108 /* The log* arg must be [0 ... Inf] EXclusive. */
117 TESTIT (log10, -1.0);
119 TESTIT (log10, -0.0);
121 /* The log1p arg must be [-1 ... Inf] EXclusive. */
122 TESTIT (log1p, -2.0);
123 TESTIT (log1p, -1.0);
125 /* The tgamma arg errors with zero or negative integers. */
126 TESTIT (tgamma, 0.0);
127 TESTIT (tgamma, -0.0);
128 TESTIT (tgamma, -1.0);
129 TESTIT (tgamma, -2.0);
130 TESTIT (tgamma, -3.0);
132 /* An argument of NaN is not evaluated at compile-time. */
133 foof (__builtin_powf (__builtin_nanf(""), 2.5F));
134 foo (__builtin_pow (__builtin_nan(""), 2.5));
135 fool (__builtin_powl (__builtin_nanl(""), 2.5L));
136 foof (__builtin_powf (2.5F, __builtin_nanf("")));
137 foo (__builtin_pow (2.5, __builtin_nan("")));
138 fool (__builtin_powl (2.5L, __builtin_nanl("")));
140 /* An argument of Inf/-Inf is not evaluated at compile-time. */
141 foof (__builtin_powf (__builtin_inff(), 2.5F));
142 foo (__builtin_pow (__builtin_inf(), 2.5));
143 fool (__builtin_powl (__builtin_infl(), 2.5L));
144 foof (__builtin_powf (-__builtin_inff(), 2.5F));
145 foo (__builtin_pow (-__builtin_inf(), 2.5));
146 fool (__builtin_powl (-__builtin_infl(), 2.5L));
147 foof (__builtin_powf (2.5F, __builtin_inff()));
148 foo (__builtin_pow (2.5, __builtin_inf()));
149 fool (__builtin_powl (2.5L, __builtin_infl()));
150 foof (__builtin_powf (2.5F, -__builtin_inff()));
151 foo (__builtin_pow (2.5, -__builtin_inf()));
152 fool (__builtin_powl (2.5L, -__builtin_infl()));
154 /* Check for Inv/NaN return values. */
155 TESTIT2 (pow, -0.0, -4.5); /* Returns Inf */
156 TESTIT2 (pow, 0.0, -4.5); /* Returns Inf */
157 TESTIT2 (pow, -3.0, -4.5); /* Returns NaN */
159 /* Check for overflow/underflow. */
160 foof (__builtin_powf (__FLT_MAX__, 3.5F));
161 foo (__builtin_pow (__DBL_MAX__, 3.5));
162 fool (__builtin_powl (__LDBL_MAX__, 3.5L));
163 TESTIT2 (pow, 2.0, 0x1p50);
164 foof (__builtin_powf (__FLT_MAX__, -3.5F));
165 foo (__builtin_pow (__DBL_MAX__, -3.5));
166 fool (__builtin_powl (__LDBL_MAX__, -3.5L));
167 TESTIT2 (pow, 2.0, -0x1p50);
169 foof (__builtin_fmaf (__FLT_MAX__, __FLT_MAX__, 0.0F));
170 foof (__builtin_fmaf (__FLT_MAX__, 1.0F, __FLT_MAX__));
171 foof (__builtin_fmaf (__FLT_MIN__, __FLT_MIN__, 0.0F));
173 foo (__builtin_fma (__DBL_MAX__, __DBL_MAX__, 0.0));
174 foo (__builtin_fma (__DBL_MAX__, 1.0, __DBL_MAX__));
175 foo (__builtin_fma (__DBL_MIN__, __DBL_MIN__, 0.0));
177 fool (__builtin_fmal (__LDBL_MAX__, __LDBL_MAX__, 0.0L));
178 fool (__builtin_fmal (__LDBL_MAX__, 1.0L, __LDBL_MAX__));
179 fool (__builtin_fmal (__LDBL_MIN__, __LDBL_MIN__, 0.0L));
181 /* The sqrt arg must be [0 ... Inf] inclusive. */
186 /* Check for overflow/underflow. */
188 /* These adjustments are too big. */
189 #define FLT_EXP_ADJ (2*(__FLT_MAX_EXP__-__FLT_MIN_EXP__)+1)
190 #define DBL_EXP_ADJ (2*(__DBL_MAX_EXP__-__DBL_MIN_EXP__)+1)
191 #define LDBL_EXP_ADJ (2*(__LDBL_MAX_EXP__-__LDBL_MIN_EXP__)+1)
193 TESTIT2_I2 (ldexp, 1.0, __INT_MAX__);
194 TESTIT2_I2 (ldexp, 1.0, -__INT_MAX__-1);
195 TESTIT2_I2 (ldexp, -1.0, __INT_MAX__);
196 TESTIT2_I2 (ldexp, -1.0, -__INT_MAX__-1);
197 TESTIT2_I2ALL (ldexp, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
198 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
199 TESTIT2_I2ALL (ldexp, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
200 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
201 TESTIT2_I2ALL (ldexp, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
202 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
203 TESTIT2_I2ALL (ldexp, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
204 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
206 TESTIT2_I2 (scalbn, 1.0, __INT_MAX__);
207 TESTIT2_I2 (scalbn, 1.0, -__INT_MAX__-1);
208 TESTIT2_I2 (scalbn, -1.0, __INT_MAX__);
209 TESTIT2_I2 (scalbn, -1.0, -__INT_MAX__-1);
210 TESTIT2_I2ALL (scalbn, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
211 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
212 TESTIT2_I2ALL (scalbn, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
213 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
214 TESTIT2_I2ALL (scalbn, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
215 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
216 TESTIT2_I2ALL (scalbn, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
217 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
219 TESTIT2_I2 (scalbln, 1.0, __LONG_MAX__);
220 TESTIT2_I2 (scalbln, 1.0, -__LONG_MAX__-1);
221 TESTIT2_I2 (scalbln, -1.0, __LONG_MAX__);
222 TESTIT2_I2 (scalbln, -1.0, -__LONG_MAX__-1);
223 TESTIT2_I2ALL (scalbln, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
224 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
225 TESTIT2_I2ALL (scalbln, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
226 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
227 TESTIT2_I2ALL (scalbln, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
228 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
229 TESTIT2_I2ALL (scalbln, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
230 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
236 TESTIT (ilogb, -0.0);
238 foof (__builtin_ilogbf (__builtin_inff()));
239 foo (__builtin_ilogb (__builtin_inf()));
240 fool (__builtin_ilogbl (__builtin_infl()));
241 foof (__builtin_ilogbf (-__builtin_inff()));
242 foo (__builtin_ilogb (-__builtin_inf()));
243 fool (__builtin_ilogbl (-__builtin_infl()));
245 foof (__builtin_ilogbf (__builtin_nanf("")));
246 foo (__builtin_ilogb (__builtin_nan("")));
247 fool (__builtin_ilogbl (__builtin_nanl("")));
248 foof (__builtin_ilogbf (-__builtin_nanf("")));
249 foo (__builtin_ilogb (-__builtin_nan("")));
250 fool (__builtin_ilogbl (-__builtin_nanl("")));
252 /* The y* arg must be [0 ... Inf] EXclusive. */
261 TESTIT2_I1 (yn, 2, -1.0);
262 TESTIT2_I1 (yn, 2, 0.0);
263 TESTIT2_I1 (yn, 2, -0.0);
265 TESTIT2_I1 (yn, -3, -1.0);
266 TESTIT2_I1 (yn, -3, 0.0);
267 TESTIT2_I1 (yn, -3, -0.0);
269 /* The second argument of remquo/remainder/drem must not be 0. */
270 TESTIT_REMQUO (1.0, 0.0);
271 TESTIT_REMQUO (1.0, -0.0);
272 TESTIT2 (remainder, 1.0, 0.0);
273 TESTIT2 (remainder, 1.0, -0.0);
274 TESTIT2 (drem, 1.0, 0.0);
275 TESTIT2 (drem, 1.0, -0.0);
277 /* The argument to lgamma* cannot be zero or a negative integer. */
278 TESTIT_REENT (lgamma, -4.0); /* lgamma_r */
279 TESTIT_REENT (lgamma, -3.0); /* lgamma_r */
280 TESTIT_REENT (lgamma, -2.0); /* lgamma_r */
281 TESTIT_REENT (lgamma, -1.0); /* lgamma_r */
282 TESTIT_REENT (lgamma, -0.0); /* lgamma_r */
283 TESTIT_REENT (lgamma, 0.0); /* lgamma_r */
285 TESTIT_REENT (gamma, -4.0); /* gamma_r */
286 TESTIT_REENT (gamma, -3.0); /* gamma_r */
287 TESTIT_REENT (gamma, -2.0); /* gamma_r */
288 TESTIT_REENT (gamma, -1.0); /* gamma_r */
289 TESTIT_REENT (gamma, -0.0); /* gamma_r */
290 TESTIT_REENT (gamma, 0.0); /* gamma_r */
293 /* { dg-final { scan-tree-dump-times "exp2 " 9 "original" } } */
294 /* { dg-final { scan-tree-dump-times "exp2f" 9 "original" } } */
295 /* { dg-final { scan-tree-dump-times "exp2l" 9 "original" } } */
296 /* { dg-final { scan-tree-dump-times "asin " 2 "original" } } */
297 /* { dg-final { scan-tree-dump-times "asinf" 2 "original" } } */
298 /* { dg-final { scan-tree-dump-times "asinl" 2 "original" } } */
299 /* { dg-final { scan-tree-dump-times "acos " 2 "original" } } */
300 /* { dg-final { scan-tree-dump-times "acosf" 2 "original" } } */
301 /* { dg-final { scan-tree-dump-times "acosl" 2 "original" } } */
302 /* { dg-final { scan-tree-dump-times "acosh " 1 "original" } } */
303 /* { dg-final { scan-tree-dump-times "acoshf" 1 "original" } } */
304 /* { dg-final { scan-tree-dump-times "acoshl" 1 "original" } } */
305 /* { dg-final { scan-tree-dump-times "atanh " 2 "original" } } */
306 /* { dg-final { scan-tree-dump-times "atanhf" 2 "original" } } */
307 /* { dg-final { scan-tree-dump-times "atanhl" 2 "original" } } */
308 /* { dg-final { scan-tree-dump-times "log " 3 "original" } } */
309 /* { dg-final { scan-tree-dump-times "logf" 3 "original" } } */
310 /* { dg-final { scan-tree-dump-times "logl" 3 "original" } } */
311 /* { dg-final { scan-tree-dump-times "log2 " 3 "original" } } */
312 /* { dg-final { scan-tree-dump-times "log2f" 3 "original" } } */
313 /* { dg-final { scan-tree-dump-times "log2l" 3 "original" } } */
314 /* { dg-final { scan-tree-dump-times "log10 " 3 "original" } } */
315 /* { dg-final { scan-tree-dump-times "log10f" 3 "original" } } */
316 /* { dg-final { scan-tree-dump-times "log10l" 3 "original" } } */
317 /* { dg-final { scan-tree-dump-times "log1p " 2 "original" } } */
318 /* { dg-final { scan-tree-dump-times "log1pf" 2 "original" } } */
319 /* { dg-final { scan-tree-dump-times "log1pl" 2 "original" } } */
320 /* { dg-final { scan-tree-dump-times "tgamma " 5 "original" } } */
321 /* { dg-final { scan-tree-dump-times "tgammaf" 5 "original" } } */
322 /* { dg-final { scan-tree-dump-times "tgammal" 5 "original" } } */
323 /* { dg-final { scan-tree-dump-times "pow " 13 "original" } } */
324 /* { dg-final { scan-tree-dump-times "powf" 13 "original" } } */
325 /* { dg-final { scan-tree-dump-times "powl" 13 "original" } } */
326 /* { dg-final { scan-tree-dump-times "fma " 3 "original" } } */
327 /* { dg-final { scan-tree-dump-times "fmaf" 3 "original" } } */
328 /* { dg-final { scan-tree-dump-times "fmal" 3 "original" } } */
329 /* { dg-final { scan-tree-dump-times "sqrt " 1 "original" } } */
330 /* { dg-final { scan-tree-dump-times "sqrtf" 1 "original" } } */
331 /* { dg-final { scan-tree-dump-times "sqrtl" 1 "original" } } */
332 /* { dg-final { scan-tree-dump-times "ldexp " 8 "original" } } */
333 /* { dg-final { scan-tree-dump-times "ldexpf" 8 "original" } } */
334 /* { dg-final { scan-tree-dump-times "ldexpl" 8 "original" } } */
335 /* { dg-final { scan-tree-dump-times "scalbn " 8 "original" } } */
336 /* { dg-final { scan-tree-dump-times "scalbnf" 8 "original" } } */
337 /* { dg-final { scan-tree-dump-times "scalbnl" 8 "original" } } */
338 /* { dg-final { scan-tree-dump-times "scalbln " 8 "original" } } */
339 /* { dg-final { scan-tree-dump-times "scalblnf" 8 "original" } } */
340 /* { dg-final { scan-tree-dump-times "scalblnl" 8 "original" } } */
341 /* { dg-final { scan-tree-dump-times "_logb " 2 "original" } } */
342 /* { dg-final { scan-tree-dump-times "_logbf" 2 "original" } } */
343 /* { dg-final { scan-tree-dump-times "_logbl" 2 "original" } } */
344 /* { dg-final { scan-tree-dump-times "ilogb " 6 "original" } } */
345 /* { dg-final { scan-tree-dump-times "ilogbf" 6 "original" } } */
346 /* { dg-final { scan-tree-dump-times "ilogbl" 6 "original" } } */
347 /* { dg-final { scan-tree-dump-times "y0 " 3 "original" } } */
348 /* { dg-final { scan-tree-dump-times "y0f" 3 "original" } } */
349 /* { dg-final { scan-tree-dump-times "y0l" 3 "original" } } */
350 /* { dg-final { scan-tree-dump-times "y1 " 3 "original" } } */
351 /* { dg-final { scan-tree-dump-times "y1f" 3 "original" } } */
352 /* { dg-final { scan-tree-dump-times "y1l" 3 "original" } } */
353 /* { dg-final { scan-tree-dump-times "yn " 6 "original" } } */
354 /* { dg-final { scan-tree-dump-times "ynf" 6 "original" } } */
355 /* { dg-final { scan-tree-dump-times "ynl" 6 "original" } } */
356 /* { dg-final { scan-tree-dump-times "remquo " 2 "original" } } */
357 /* { dg-final { scan-tree-dump-times "remquof" 2 "original" } } */
358 /* { dg-final { scan-tree-dump-times "remquol" 2 "original" } } */
359 /* { dg-final { scan-tree-dump-times "remainder " 2 "original" } } */
360 /* { dg-final { scan-tree-dump-times "remainderf" 2 "original" } } */
361 /* { dg-final { scan-tree-dump-times "remainderl" 2 "original" } } */
362 /* { dg-final { scan-tree-dump-times "drem " 2 "original" } } */
363 /* { dg-final { scan-tree-dump-times "dremf" 2 "original" } } */
364 /* { dg-final { scan-tree-dump-times "dreml" 2 "original" } } */
365 /* { dg-final { scan-tree-dump-times "lgamma_r " 6 "original" } } */
366 /* { dg-final { scan-tree-dump-times "lgammaf_r" 6 "original" } } */
367 /* { dg-final { scan-tree-dump-times "lgammal_r" 6 "original" } } */
368 /* { dg-final { scan-tree-dump-times "_gamma_r " 6 "original" } } */
369 /* { dg-final { scan-tree-dump-times "_gammaf_r" 6 "original" } } */
370 /* { dg-final { scan-tree-dump-times "_gammal_r" 6 "original" } } */
371 /* { dg-final { cleanup-tree-dump "original" } } */