1 /* PR c/64279 */
2 /* { dg-do compile } */
3 /* { dg-options "-Wduplicated-branches" } */
4
5 extern int *p, foo (void), a[10];
6 #define N 5
7 #define M 5
8 #define I i
9
10 void
f(int i)11 f (int i)
12 {
13 *p += i ? 1 : 1; /* { dg-warning "this condition has identical branches" } */
14 *p += i ? N : M; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
15 *p += i ? M : N; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
16 *p += i ? i : i; /* { dg-warning "this condition has identical branches" } */
17 *p += i ? i++ : i++; /* { dg-warning "this condition has identical branches" } */
18 *p += i ? foo () : foo (); /* { dg-warning "this condition has identical branches" } */
19 *p += i ? ({ i++; }) : ({ i++; }); /* { dg-warning "this condition has identical branches" } */
20 *p += i ? a[i] : a[i]; /* { dg-warning "this condition has identical branches" } */
21 *p += i ? a[5] : a[5]; /* { dg-warning "this condition has identical branches" } */
22 *p += i ? a[N] : a[M]; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
23 *p += i ? a[5] : a[M]; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
24 *p += i ? a[M] : a[5]; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
25 *p += i ? a[I] : a[I]; /* { dg-warning "this condition has identical branches" } */
26 *p += i ? a[i] : a[I]; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
27 *p += i ? a[I] : a[i]; /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
28
29 *p += i ?: 1;
30 *p += i ?: M;
31 *p += i ?: N;
32 *p += i ?: i; /* { dg-warning "this condition has identical branches" "" { target c++ } } */
33 *p += i ?: i++;
34 *p += i ?: foo ();
35 *p += i ?: ({ i++; });
36 *p += i ?: a[i];
37 *p += i ?: a[5];
38 *p += i ?: a[M];
39 *p += i ?: a[M];
40 *p += i ?: a[5];
41 *p += i ?: a[I];
42 *p += i ?: a[I];
43 *p += i ?: a[i];
44
45 *p += (i > 5 ? (i > 10 ? i : i) : i); /* { dg-warning "this condition has identical branches" } */
46 }
47