gcc/testsuite/c-c++-common/Wduplicated-branches-8.c

   1 /* PR c/64279 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-Wduplicated-branches" } */
   4
   5 #define A 5
   6 #define B 5
   7 #define I i
   8 extern int a[10];
   9 extern int g;
  10
  11 int
  12 f (int i)
  13 {
  14   if (i == 1) /* { dg-warning "this condition has identical branches" } */
  15    return a[5];
  16   else
  17    return a[5];
  18
  19   if (i == 2) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  20    return a[A];
  21   else
  22    return a[5];
  23
  24   if (i == 3) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  25    return a[5];
  26   else
  27    return a[A];
  28
  29   if (i == 4) /* { dg-warning "this condition has identical branches" } */
  30    return a[A];
  31   else
  32    return a[A];
  33
  34   if (i == 5) /* { dg-warning "this condition has identical branches" } */
  35    return a[i];
  36   else
  37    return a[i];
  38
  39   if (i == 6) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  40    return a[I];
  41   else
  42    return a[i];
  43
  44   if (i == 7) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  45    return a[i];
  46   else
  47    return a[I];
  48
  49   if (i == 8) /* { dg-warning "this condition has identical branches" } */
  50    return a[I];
  51   else
  52    return a[I];
  53
  54   if (i == 10) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  55     g += A;
  56   else
  57     g += B;
  58
  59   if (i == 11) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  60     g += B;
  61   else
  62     g += A;
  63
  64   if (i == 12) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  65     g += A;
  66   else
  67     g += 5;
  68
  69   if (i == 12) /* { dg-bogus "this condition has identical branches" "" { xfail *-*-* } } */
  70     g += 5;
  71   else
  72     g += A;
  73 }