1 /* Copyright (C) 2004 Free Software Foundation.
2
3 Verify that GCC can determine which built-in functions produce a
4 nonnegative result.
5
6 Written by Kaveh Ghazi, 2004-03-10. */
7
8 /* { dg-do link } */
9 /* This test needs more recursion than the default. PR 68097 is about
10 adding proper range information for reals, so that no recursion
11 would be necessary. */
12 /* { dg-options "-ffast-math --param max-ssa-name-query-depth=3" } */
13 /* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
14
15 #define PROTOTYPE_RTYPE(FN,RTYPE) extern RTYPE FN(double); \
16 extern RTYPE FN##f(float); \
17 extern RTYPE FN##l(long double);
18 #define PROTOTYPE(FN) extern double FN(double); extern float FN##f(float); \
19 extern long double FN##l(long double);
20 #define PROTOTYPE2(FN) extern double FN(double, double); \
21 extern float FN##f(float, float); \
22 extern long double FN##l(long double, long double);
23 #define CPROTOTYPE1(FN) extern double FN(_Complex double); \
24 extern float FN##f(_Complex float); \
25 extern long double FN##l(_Complex long double);
26 #define CPROTOTYPE1(FN) extern double FN(_Complex double); \
27 extern float FN##f(_Complex float); \
28 extern long double FN##l(_Complex long double);
29 #define IPROTOTYPE(FN) extern int FN(int); extern int FN##l(long); \
30 extern int FN##ll(long long);
31 #define PROTOTYPE2TYPE2(FN,A2TYPE) extern double FN(double, A2TYPE); \
32 extern float FN##f(float, A2TYPE); \
33 extern long double FN##l(long double, A2TYPE);
34 #define PROTOTYPE2_A2FPTR(FN) extern double FN(double, double *); \
35 extern float FN##f(float, float *); \
36 extern long double FN##l(long double, long double *);
37
38 extern int signbit (double);
39 extern int signbitf (float);
40 extern int signbitl (long double);
41
42 void test(double d1, double d2, float f1, float f2,
43 long double ld1, long double ld2)
44 {
45 /* These are always nonnegative. */
46
47 #define TEST1(FN) \
48 extern void link_failure_##FN (void); PROTOTYPE(FN) \
49 if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \
50 link_failure_##FN()
51
52 #define TEST2(FN) \
53 extern void link_failure_##FN (void); PROTOTYPE2(FN) \
54 if (signbit(FN(d1,d2)) || signbitf(FN##f(f1,f2)) || signbitl(FN##l(ld1,ld2))) \
55 link_failure_##FN()
56
57 #define CTEST1(FN) \
58 extern void link_failure_##FN (void); CPROTOTYPE1(FN) \
59 if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \
60 link_failure_##FN()
61
62 #define ITEST1(FN) \
63 extern void link_failure_##FN (void); IPROTOTYPE(FN) \
64 if (signbit(FN(d1)) || signbitf(FN##l(f1)) || signbitl(FN##ll(ld1))) \
65 link_failure_##FN()
66
67 TEST1 (acos);
68 TEST1 (acosh);
69 CTEST1 (cabs);
70 TEST1 (cosh);
71 TEST1 (erfc);
72 TEST1 (exp);
73 TEST1 (exp10);
74 TEST1 (exp2);
75 TEST1 (fabs);
76 TEST2 (fdim);
77 TEST2 (hypot);
78 TEST1 (pow10);
79 TEST1 (sqrt);
80 ITEST1 (ffs);
81 ITEST1 (__builtin_parity);
82 ITEST1 (__builtin_popcount);
83
84 /* These are nonnegative if the first argument is. */
85 #define ARG1TEST1(FN) \
86 extern void link_failure_##FN (void); PROTOTYPE(FN) \
87 if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \
88 || signbitl(FN##l(fabsl(ld1)))) \
89 link_failure_##FN()
90
91 /* Same, but allow specifying the return type. */
92 #define ARG1TEST1_RTYPE(FN,RTYPE) \
93 extern void link_failure_##FN (void); PROTOTYPE_RTYPE(FN,RTYPE) \
94 if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \
95 || signbitl(FN##l(fabsl(ld1)))) \
96 link_failure_##FN()
97
98 /* These are nonnegative if the first argument is. */
99 #define ARG1TEST2(FN) \
100 extern void link_failure_##FN (void); PROTOTYPE2(FN) \
101 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
102 || signbitl(FN##l(fabsl(ld1),ld2))) \
103 link_failure_##FN()
104
105 /* These are nonnegative if the second argument is. */
106 #define ARG2TEST2(FN) \
107 extern void link_failure_##FN (void); PROTOTYPE2(FN) \
108 if (signbit(FN(d1,fabs(d2))) || signbitf(FN##f(f1,fabsf(f2))) \
109 || signbitl(FN##l(ld1,fabsl(ld2)))) \
110 link_failure_##FN()
111
112 /* These are nonnegative if the first OR second argument is. */
113 #define ARG2TESTor(FN) \
114 extern void link_failure_##FN (void); PROTOTYPE2(FN) \
115 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
116 || signbitl(FN##l(fabsl(ld1),ld2)) || signbit(FN(d1,fabs(d2))) \
117 || signbitf(FN##f(f1,fabsf(f2))) || signbitl(FN##l(ld1,fabsl(ld2)))) \
118 link_failure_##FN()
119
120 /* These are nonnegative if the first AND second argument is. */
121 #define ARG2TESTand(FN) \
122 extern void link_failure_##FN (void); PROTOTYPE2(FN) \
123 if (signbit(FN(fabs(d1),fabs(d2))) || signbitf(FN##f(fabsf(f1),fabsf(f2))) \
124 || signbitl(FN##l(fabsl(ld1),fabsl(ld2)))) \
125 link_failure_##FN()
126
127 /* These are nonnegative if the first argument is, 2nd arg is an int. */
128 #define ARG1TEST2_A2INT(FN, INTTYPE) \
129 extern void link_failure_##FN (void); PROTOTYPE2TYPE2(FN, INTTYPE) \
130 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
131 || signbitl(FN##l(fabsl(ld1),ld2))) \
132 link_failure_##FN()
133
134 /* These are nonnegative if the first argument is, specify 2nd arg. */
135 #define ARG2TEST1_A2FPTR(FN) \
136 extern void link_failure_##FN (void); PROTOTYPE2_A2FPTR(FN) \
137 if (signbit(FN(fabs(d1),&d2)) || signbitf(FN##f(fabsf(f1),&f2)) \
138 || signbitl(FN##l(fabsl(ld1),&ld2))) \
139 link_failure_##FN()
140
141 ARG1TEST1 (asinh);
142 ARG1TEST1 (atan);
143 ARG1TEST1 (atanh);
144 ARG1TEST1 (cbrt);
145 ARG1TEST1 (ceil);
146 ARG1TEST1 (erf);
147 ARG1TEST1 (expm1);
148 ARG1TEST1 (floor);
149 ARG1TEST2 (fmod);
150 ARG1TEST2_A2INT (ldexp, int);
151 ARG1TEST1_RTYPE (__builtin_llceil, long long);
152 ARG1TEST1_RTYPE (__builtin_llfloor, long long);
153 ARG1TEST1_RTYPE (llrint, long long);
154 ARG1TEST1_RTYPE (llround, long long);
155 ARG1TEST1_RTYPE (__builtin_lceil, long);
156 ARG1TEST1_RTYPE (__builtin_lfloor, long);
157 ARG1TEST1_RTYPE (lrint, long);
158 ARG1TEST1_RTYPE (lround, long);
159 /* The modf* functions aren't ever "const" or "pure" even with
160 -ffast-math so they won't be eliminated and yield a link failure. */
161 /* ARG2TEST1_A2FPTR (modf);*/
162 ARG1TEST1 (nearbyint);
163 ARG1TEST2 (pow);
164 ARG1TEST1 (rint);
165 ARG1TEST1 (round);
166 ARG1TEST2 (scalb);
167 ARG1TEST2_A2INT (scalbln, long);
168 ARG1TEST2_A2INT (scalbn, int);
169 ARG1TEST1_RTYPE (signbit, int);
170 ARG1TEST1 (significand);
171 ARG1TEST1 (sinh);
172 ARG1TEST1 (tanh);
173 ARG1TEST1 (trunc);
174
175 ARG2TESTor (fmax);
176 ARG2TESTand (fmin);
177 ARG2TEST2 (copysign);
178
179 }
180
181 int main (void)
182 {
183 return 0;
184 }