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)); \
47 /* An argument of NaN is not evaluated at compile-time. */
48 foof (__builtin_exp2f (__builtin_nanf("")));
49 foo (__builtin_exp2 (__builtin_nan("")));
50 fool (__builtin_exp2l (__builtin_nanl("")));
52 /* An argument of Inf/-Inf is not evaluated at compile-time. */
53 foof (__builtin_exp2f (__builtin_inff()));
54 foo (__builtin_exp2 (__builtin_inf()));
55 fool (__builtin_exp2l (__builtin_infl()));
56 foof (__builtin_exp2f (-__builtin_inff()));
57 foo (__builtin_exp2 (-__builtin_inf()));
58 fool (__builtin_exp2l (-__builtin_infl()));
60 /* Result overflows MPFR, which in version 2.2.x has 30 exponent bits. */
61 TESTIT (exp2, 0x1p50);
62 /* Result underflows MPFR, which in version 2.2.x has 30 exponent bits. */
63 TESTIT (exp2, -0x1p50);
65 /* Result overflows GCC's REAL_VALUE_TYPE, which has 26 exponent bits. */
66 TESTIT (exp2, 0x1p28);
67 /* Result underflows GCC's REAL_VALUE_TYPE, which has 26 exponent bits. */
68 TESTIT (exp2, -0x1p28);
70 /* Result overflows (even an extended) C double's mode. */
71 TESTIT (exp2, 0x1p24);
72 /* Result underflows (even an extended) C double's mode. */
73 TESTIT (exp2, -0x1p24);
75 /* Ensure that normal arguments/results are folded. */
79 /* The asin arg must be [-1 ... 1] inclusive. */
83 /* The acos arg must be [-1 ... 1] inclusive. */
87 /* The acosh arg must be [1 ... Inf] inclusive. */
90 /* The atanh arg must be [-1 ... 1] EXclusive. */
94 /* The log* arg must be [0 ... Inf] EXclusive. */
103 TESTIT (log10, -1.0);
105 TESTIT (log10, -0.0);
107 /* The log1p arg must be [-1 ... Inf] EXclusive. */
108 TESTIT (log1p, -2.0);
109 TESTIT (log1p, -1.0);
111 /* The tgamma arg errors with zero or negative integers. */
112 TESTIT (tgamma, 0.0);
113 TESTIT (tgamma, -0.0);
114 TESTIT (tgamma, -1.0);
115 TESTIT (tgamma, -2.0);
116 TESTIT (tgamma, -3.0);
118 /* An argument of NaN is not evaluated at compile-time. */
119 foof (__builtin_powf (__builtin_nanf(""), 2.5F));
120 foo (__builtin_pow (__builtin_nan(""), 2.5));
121 fool (__builtin_powl (__builtin_nanl(""), 2.5L));
122 foof (__builtin_powf (2.5F, __builtin_nanf("")));
123 foo (__builtin_pow (2.5, __builtin_nan("")));
124 fool (__builtin_powl (2.5L, __builtin_nanl("")));
126 /* An argument of Inf/-Inf is not evaluated at compile-time. */
127 foof (__builtin_powf (__builtin_inff(), 2.5F));
128 foo (__builtin_pow (__builtin_inf(), 2.5));
129 fool (__builtin_powl (__builtin_infl(), 2.5L));
130 foof (__builtin_powf (-__builtin_inff(), 2.5F));
131 foo (__builtin_pow (-__builtin_inf(), 2.5));
132 fool (__builtin_powl (-__builtin_infl(), 2.5L));
133 foof (__builtin_powf (2.5F, __builtin_inff()));
134 foo (__builtin_pow (2.5, __builtin_inf()));
135 fool (__builtin_powl (2.5L, __builtin_infl()));
136 foof (__builtin_powf (2.5F, -__builtin_inff()));
137 foo (__builtin_pow (2.5, -__builtin_inf()));
138 fool (__builtin_powl (2.5L, -__builtin_infl()));
140 /* Check for Inv/NaN return values. */
141 TESTIT2 (pow, -0.0, -4.5); /* Returns Inf */
142 TESTIT2 (pow, 0.0, -4.5); /* Returns Inf */
143 TESTIT2 (pow, -3.0, -4.5); /* Returns NaN */
145 /* Check for overflow/underflow. */
146 foof (__builtin_powf (__FLT_MAX__, 3.5F));
147 foo (__builtin_pow (__DBL_MAX__, 3.5));
148 fool (__builtin_powl (__LDBL_MAX__, 3.5L));
149 TESTIT2 (pow, 2.0, 0x1p50);
150 foof (__builtin_powf (__FLT_MAX__, -3.5F));
151 foo (__builtin_pow (__DBL_MAX__, -3.5));
152 fool (__builtin_powl (__LDBL_MAX__, -3.5L));
153 TESTIT2 (pow, 2.0, -0x1p50);
155 foof (__builtin_fmaf (__FLT_MAX__, __FLT_MAX__, 0.0F));
156 foof (__builtin_fmaf (__FLT_MAX__, 1.0F, __FLT_MAX__));
157 foof (__builtin_fmaf (__FLT_MIN__, __FLT_MIN__, 0.0F));
159 foo (__builtin_fma (__DBL_MAX__, __DBL_MAX__, 0.0));
160 foo (__builtin_fma (__DBL_MAX__, 1.0, __DBL_MAX__));
161 foo (__builtin_fma (__DBL_MIN__, __DBL_MIN__, 0.0));
163 fool (__builtin_fmal (__LDBL_MAX__, __LDBL_MAX__, 0.0L));
164 fool (__builtin_fmal (__LDBL_MAX__, 1.0L, __LDBL_MAX__));
165 fool (__builtin_fmal (__LDBL_MIN__, __LDBL_MIN__, 0.0L));
167 /* The sqrt arg must be [0 ... Inf] inclusive. */
172 /* Check for overflow/underflow. */
174 /* These adjustments are too big. */
175 #define FLT_EXP_ADJ (2*(__FLT_MAX_EXP__-__FLT_MIN_EXP__)+1)
176 #define DBL_EXP_ADJ (2*(__DBL_MAX_EXP__-__DBL_MIN_EXP__)+1)
177 #define LDBL_EXP_ADJ (2*(__LDBL_MAX_EXP__-__LDBL_MIN_EXP__)+1)
179 TESTIT2_I2 (ldexp, 1.0, __INT_MAX__);
180 TESTIT2_I2 (ldexp, 1.0, -__INT_MAX__-1);
181 TESTIT2_I2 (ldexp, -1.0, __INT_MAX__);
182 TESTIT2_I2 (ldexp, -1.0, -__INT_MAX__-1);
183 TESTIT2_I2ALL (ldexp, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
184 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
185 TESTIT2_I2ALL (ldexp, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
186 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
187 TESTIT2_I2ALL (ldexp, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
188 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
189 TESTIT2_I2ALL (ldexp, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
190 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
192 TESTIT2_I2 (scalbn, 1.0, __INT_MAX__);
193 TESTIT2_I2 (scalbn, 1.0, -__INT_MAX__-1);
194 TESTIT2_I2 (scalbn, -1.0, __INT_MAX__);
195 TESTIT2_I2 (scalbn, -1.0, -__INT_MAX__-1);
196 TESTIT2_I2ALL (scalbn, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
197 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
198 TESTIT2_I2ALL (scalbn, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
199 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
200 TESTIT2_I2ALL (scalbn, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
201 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
202 TESTIT2_I2ALL (scalbn, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
203 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
205 TESTIT2_I2 (scalbln, 1.0, __LONG_MAX__);
206 TESTIT2_I2 (scalbln, 1.0, -__LONG_MAX__-1);
207 TESTIT2_I2 (scalbln, -1.0, __LONG_MAX__);
208 TESTIT2_I2 (scalbln, -1.0, -__LONG_MAX__-1);
209 TESTIT2_I2ALL (scalbln, __FLT_MIN__, FLT_EXP_ADJ, __DBL_MIN__,
210 DBL_EXP_ADJ, __LDBL_MIN__, LDBL_EXP_ADJ);
211 TESTIT2_I2ALL (scalbln, __FLT_MAX__, -FLT_EXP_ADJ, __DBL_MAX__,
212 -DBL_EXP_ADJ, __LDBL_MAX__, -LDBL_EXP_ADJ);
213 TESTIT2_I2ALL (scalbln, __FLT_MIN__, __FLT_MIN_EXP__, __DBL_MIN__,
214 __DBL_MIN_EXP__, __LDBL_MIN__, __LDBL_MIN_EXP__);
215 TESTIT2_I2ALL (scalbln, __FLT_MAX__, __FLT_MAX_EXP__, __DBL_MAX__,
216 __DBL_MAX_EXP__, __LDBL_MAX__, __LDBL_MAX_EXP__);
222 TESTIT (ilogb, -0.0);
224 foof (__builtin_ilogbf (__builtin_inff()));
225 foo (__builtin_ilogb (__builtin_inf()));
226 fool (__builtin_ilogbl (__builtin_infl()));
227 foof (__builtin_ilogbf (-__builtin_inff()));
228 foo (__builtin_ilogb (-__builtin_inf()));
229 fool (__builtin_ilogbl (-__builtin_infl()));
231 foof (__builtin_ilogbf (__builtin_nanf("")));
232 foo (__builtin_ilogb (__builtin_nan("")));
233 fool (__builtin_ilogbl (__builtin_nanl("")));
234 foof (__builtin_ilogbf (-__builtin_nanf("")));
235 foo (__builtin_ilogb (-__builtin_nan("")));
236 fool (__builtin_ilogbl (-__builtin_nanl("")));
238 /* The y* arg must be [0 ... Inf] EXclusive. */
247 TESTIT2_I1 (yn, 2, -1.0);
248 TESTIT2_I1 (yn, 2, 0.0);
249 TESTIT2_I1 (yn, 2, -0.0);
251 TESTIT2_I1 (yn, -3, -1.0);
252 TESTIT2_I1 (yn, -3, 0.0);
253 TESTIT2_I1 (yn, -3, -0.0);
257 /* { dg-final { scan-tree-dump-times "exp2 " 9 "original" } } */
258 /* { dg-final { scan-tree-dump-times "exp2f" 9 "original" } } */
259 /* { dg-final { scan-tree-dump-times "exp2l" 9 "original" } } */
260 /* { dg-final { scan-tree-dump-times "asin " 2 "original" } } */
261 /* { dg-final { scan-tree-dump-times "asinf" 2 "original" } } */
262 /* { dg-final { scan-tree-dump-times "asinl" 2 "original" } } */
263 /* { dg-final { scan-tree-dump-times "acos " 2 "original" } } */
264 /* { dg-final { scan-tree-dump-times "acosf" 2 "original" } } */
265 /* { dg-final { scan-tree-dump-times "acosl" 2 "original" } } */
266 /* { dg-final { scan-tree-dump-times "acosh " 1 "original" } } */
267 /* { dg-final { scan-tree-dump-times "acoshf" 1 "original" } } */
268 /* { dg-final { scan-tree-dump-times "acoshl" 1 "original" } } */
269 /* { dg-final { scan-tree-dump-times "atanh " 2 "original" } } */
270 /* { dg-final { scan-tree-dump-times "atanhf" 2 "original" } } */
271 /* { dg-final { scan-tree-dump-times "atanhl" 2 "original" } } */
272 /* { dg-final { scan-tree-dump-times "log " 3 "original" } } */
273 /* { dg-final { scan-tree-dump-times "logf" 3 "original" } } */
274 /* { dg-final { scan-tree-dump-times "logl" 3 "original" } } */
275 /* { dg-final { scan-tree-dump-times "log2 " 3 "original" } } */
276 /* { dg-final { scan-tree-dump-times "log2f" 3 "original" } } */
277 /* { dg-final { scan-tree-dump-times "log2l" 3 "original" } } */
278 /* { dg-final { scan-tree-dump-times "log10 " 3 "original" } } */
279 /* { dg-final { scan-tree-dump-times "log10f" 3 "original" } } */
280 /* { dg-final { scan-tree-dump-times "log10l" 3 "original" } } */
281 /* { dg-final { scan-tree-dump-times "log1p " 2 "original" } } */
282 /* { dg-final { scan-tree-dump-times "log1pf" 2 "original" } } */
283 /* { dg-final { scan-tree-dump-times "log1pl" 2 "original" } } */
284 /* { dg-final { scan-tree-dump-times "tgamma " 5 "original" } } */
285 /* { dg-final { scan-tree-dump-times "tgammaf" 5 "original" } } */
286 /* { dg-final { scan-tree-dump-times "tgammal" 5 "original" } } */
287 /* { dg-final { scan-tree-dump-times "pow " 13 "original" } } */
288 /* { dg-final { scan-tree-dump-times "powf" 13 "original" } } */
289 /* { dg-final { scan-tree-dump-times "powl" 13 "original" } } */
290 /* { dg-final { scan-tree-dump-times "fma " 3 "original" } } */
291 /* { dg-final { scan-tree-dump-times "fmaf" 3 "original" } } */
292 /* { dg-final { scan-tree-dump-times "fmal" 3 "original" } } */
293 /* { dg-final { scan-tree-dump-times "sqrt " 1 "original" } } */
294 /* { dg-final { scan-tree-dump-times "sqrtf" 1 "original" } } */
295 /* { dg-final { scan-tree-dump-times "sqrtl" 1 "original" } } */
296 /* { dg-final { scan-tree-dump-times "ldexp " 8 "original" } } */
297 /* { dg-final { scan-tree-dump-times "ldexpf" 8 "original" } } */
298 /* { dg-final { scan-tree-dump-times "ldexpl" 8 "original" } } */
299 /* { dg-final { scan-tree-dump-times "scalbn " 8 "original" } } */
300 /* { dg-final { scan-tree-dump-times "scalbnf" 8 "original" } } */
301 /* { dg-final { scan-tree-dump-times "scalbnl" 8 "original" } } */
302 /* { dg-final { scan-tree-dump-times "scalbln " 8 "original" } } */
303 /* { dg-final { scan-tree-dump-times "scalblnf" 8 "original" } } */
304 /* { dg-final { scan-tree-dump-times "scalblnl" 8 "original" } } */
305 /* { dg-final { scan-tree-dump-times "_logb " 2 "original" } } */
306 /* { dg-final { scan-tree-dump-times "_logbf" 2 "original" } } */
307 /* { dg-final { scan-tree-dump-times "_logbl" 2 "original" } } */
308 /* { dg-final { scan-tree-dump-times "ilogb " 6 "original" } } */
309 /* { dg-final { scan-tree-dump-times "ilogbf" 6 "original" } } */
310 /* { dg-final { scan-tree-dump-times "ilogbl" 6 "original" } } */
311 /* { dg-final { scan-tree-dump-times "y0 " 3 "original" } } */
312 /* { dg-final { scan-tree-dump-times "y0f" 3 "original" } } */
313 /* { dg-final { scan-tree-dump-times "y0l" 3 "original" } } */
314 /* { dg-final { scan-tree-dump-times "y1 " 3 "original" } } */
315 /* { dg-final { scan-tree-dump-times "y1f" 3 "original" } } */
316 /* { dg-final { scan-tree-dump-times "y1l" 3 "original" } } */
317 /* { dg-final { scan-tree-dump-times "yn " 6 "original" } } */
318 /* { dg-final { scan-tree-dump-times "ynf" 6 "original" } } */
319 /* { dg-final { scan-tree-dump-times "ynl" 6 "original" } } */
320 /* { dg-final { cleanup-tree-dump "original" } } */