1 /* Check that execution counts for various C constructs are reported
2 correctly by gcov. */
3
4 /* { dg-options "-fprofile-arcs -ftest-coverage" } */
5 /* { dg-do run { target native } } */
6
7 extern void abort (void);
8
do_something(int i)9 int do_something (int i)
10 {
11 return i;
12 }
13
14 /* Check static inline functions. */
15
16 int unref_val;
17
18 static inline int
unreferenced(int i,int j)19 unreferenced (int i, int j)
20 {
21 return i - j;
22 }
23
24 static inline int
uncalled(int i,int j)25 uncalled (int i, int j)
26 {
27 return i * j;
28 }
29
30 static inline int
called(int i,int j)31 called (int i, int j)
32 {
33 return i + j; /* count(1) */
34 }
35
36 void
call_unref()37 call_unref ()
38 {
39 if (unref_val) /* count(1) */
40 unref_val = uncalled (1, 2);
41 unref_val = called (unref_val, 4); /* count(1) */
42 }
43
44
45 /* Check for loops. */
46
47 int for_val1;
48 int for_val2;
49 int for_temp;
50
51 int
test_for1(int n)52 test_for1 (int n)
53 {
54 int i;
55 for_temp = 1; /* count(3) */
56 for (i = 0; i < n; i++)
57 for_temp++; /* count(9) */
58 return for_temp; /* count(3) */
59 }
60
61 int
test_for2(int m,int n,int o)62 test_for2 (int m, int n, int o)
63 {
64 int i, j, k;
65 for_temp = 1; /* count(6) */
66 for (i = 0; i < n; i++)
67 for (j = 0; j < m; j++)
68 for (k = 0; k < o; k++)
69 for_temp++; /* count(81) */
70 return for_temp; /* count(6) */
71 }
72
73 void
call_for()74 call_for ()
75 {
76 for_val1 += test_for1 (0);
77 for_val1 += test_for1 (2);
78 for_val1 += test_for1 (7);
79
80 for_val2 += test_for2 (0, 0, 0);
81 for_val2 += test_for2 (1, 0, 0);
82 for_val2 += test_for2 (1, 3, 0);
83 for_val2 += test_for2 (1, 3, 1);
84 for_val2 += test_for2 (3, 1, 5);
85 for_val2 += test_for2 (3, 7, 3);
86 }
87
88 /* Check the use of goto. */
89
90 int goto_val;
91
92 int
test_goto1(int f)93 test_goto1 (int f)
94 {
95 if (f) /* count(2) */
96 goto lab1; /* count(1) */
97 return 1; /* count(1) */
98 lab1:
99 return 2; /* count(1) */
100 }
101
102 int
test_goto2(int f)103 test_goto2 (int f)
104 {
105 int i;
106 for (i = 0; i < 10; i++) /* count(15) */
107 if (i == f) goto lab2; /* count(14) */
108 return 4; /* count(1) */
109 lab2:
110 return 8; /* count(1) */
111 }
112
113 void
call_goto()114 call_goto ()
115 {
116 goto_val += test_goto1 (0);
117 goto_val += test_goto1 (1);
118 goto_val += test_goto2 (3);
119 goto_val += test_goto2 (30);
120 }
121
122 /* Check nested if-then-else statements. */
123
124 int ifelse_val1;
125 int ifelse_val2;
126 int ifelse_val3;
127
128 int
test_ifelse1(int i,int j)129 test_ifelse1 (int i, int j)
130 {
131 int result = 0;
132 if (i) /* count(5) */
133 if (j) /* count(3) */
134 result = do_something (4); /* count(3) */
135 else
136 result = do_something (1024);
137 else
138 if (j) /* count(2) */
139 result = do_something (1); /* count(1) */
140 else
141 result = do_something (2); /* count(1) */
142 if (i > j) /* count(5) */
143 result = do_something (result*2); /* count(1) */
144 if (i > 10) /* count(5) */
145 if (j > 10) /* count(1) */
146 result = do_something (result*4); /* count(1) */
147 return result; /* count(5) */
148 }
149
150 int
test_ifelse2(int i)151 test_ifelse2 (int i)
152 {
153 int result = 0;
154 if (!i) /* count(6) */
155 result = do_something (1); /* count(1) */
156 if (i == 1) /* count(6) */
157 result = do_something (1024);
158 if (i == 2) /* count(6) */
159 result = do_something (2); /* count(3) */
160 if (i == 3) /* count(6) */
161 return do_something (8); /* count(2) */
162 if (i == 4) /* count(4) */
163 return do_something (2048);
164 return result; /* count(4) */
165 }
166
167 int
test_ifelse3(int i,int j)168 test_ifelse3 (int i, int j)
169 {
170 int result = 1;
171 if (i > 10 && j > i && j < 20) /* count(11) */
172 result = do_something (16); /* count(1) */
173 if (i > 20) /* count(11) */
174 if (j > i) /* count(5) */
175 if (j < 30) /* count(2) */
176 result = do_something (32); /* count(1) */
177 if (i == 3 || j == 47 || i == j) /* count(11) */
178 result = do_something (64); /* count(3) */
179 return result; /* count(11) */
180 }
181
182 void
call_ifelse()183 call_ifelse ()
184 {
185 ifelse_val1 += test_ifelse1 (0, 2);
186 ifelse_val1 += test_ifelse1 (0, 0);
187 ifelse_val1 += test_ifelse1 (1, 2);
188 ifelse_val1 += test_ifelse1 (10, 2);
189 ifelse_val1 += test_ifelse1 (11, 11);
190
191 ifelse_val2 += test_ifelse2 (0);
192 ifelse_val2 += test_ifelse2 (2);
193 ifelse_val2 += test_ifelse2 (2);
194 ifelse_val2 += test_ifelse2 (2);
195 ifelse_val2 += test_ifelse2 (3);
196 ifelse_val2 += test_ifelse2 (3);
197
198 ifelse_val3 += test_ifelse3 (11, 19);
199 ifelse_val3 += test_ifelse3 (25, 27);
200 ifelse_val3 += test_ifelse3 (11, 22);
201 ifelse_val3 += test_ifelse3 (11, 10);
202 ifelse_val3 += test_ifelse3 (21, 32);
203 ifelse_val3 += test_ifelse3 (21, 20);
204 ifelse_val3 += test_ifelse3 (1, 2);
205 ifelse_val3 += test_ifelse3 (32, 31);
206 ifelse_val3 += test_ifelse3 (3, 0);
207 ifelse_val3 += test_ifelse3 (0, 47);
208 ifelse_val3 += test_ifelse3 (65, 65);
209 }
210
211 /* Check switch statements. */
212
213 int switch_val, switch_m;
214
215 int
test_switch(int i,int j)216 test_switch (int i, int j)
217 {
218 int result = 0; /* count(5) */
219
220 switch (i) /* count(5) */
221 {
222 case 1:
223 result = do_something (2); /* count(1) */
224 break;
225 case 2:
226 result = do_something (1024);
227 break;
228 case 3:
229 case 4:
230 if (j == 2) /* count(3) */
231 return do_something (4); /* count(1) */
232 result = do_something (8); /* count(2) */
233 break;
234 default:
235 result = do_something (32); /* count(1) */
236 switch_m++; /* count(1) */
237 break;
238 }
239 return result; /* count(4) */
240 }
241
242 void
call_switch()243 call_switch ()
244 {
245 switch_val += test_switch (1, 0);
246 switch_val += test_switch (3, 0);
247 switch_val += test_switch (3, 2);
248 switch_val += test_switch (4, 0);
249 switch_val += test_switch (16, 0);
250 switch_val += switch_m;
251 }
252
253 int
main()254 main()
255 {
256 call_for ();
257 call_goto ();
258 call_ifelse ();
259 call_switch ();
260 call_unref ();
261 if ((for_val1 != 12)
262 || (for_val2 != 87)
263 || (goto_val != 15)
264 || (ifelse_val1 != 31)
265 || (ifelse_val2 != 23)
266 || (ifelse_val3 != 246)
267 || (switch_val != 55)
268 || (unref_val != 4))
269 abort ();
270 return 0;
271 }
272
273 /* { dg-final { run-gcov gcov-4.c } } */
274