gcc/testsuite/gcc.dg/uninit-pred-9_b.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wuninitialized -O2" } */
   3
   4 int g;
   5 void bar();
   6 void blah(int);
   7
   8 int foo (int n, int l, int m, int r)
   9 {
  10   int v;
  11
  12   if ( (n < 10) && (m != 100)  && (r < 20) )
  13     v = r;
  14
  15   if (m) g++;
  16   else  bar();
  17
  18   if (l > 100)
  19     if ( (n <= 9) &&  (m < 100)  && (r < 19) )
  20       blah(v); /* { dg-bogus "uninitialized" "bogus warning" } */
  21
  22   if ( (n <= 8) &&  (m < 99)  && (r < 19) )
  23       blah(v); /* { dg-bogus "uninitialized" "pr101674" { xfail powerpc64*-*-* mmix-*-* cris-*-* } } */
  24
  25   return 0;
  26 }
  27
  28 int foo_2 (int n, int l, int m, int r)
  29 {
  30   int v;
  31
  32   if ( (n < 10) && (m != 100)  && (r < 20) )
  33     v = r;
  34
  35   if (m) g++;
  36   else  bar();
  37
  38   if (l > 100)
  39     if ( (n <= 8) &&  (m < 101)  && (r < 19) )
  40       blah(v); /* { dg-warning "uninitialized" "real warning" } */
  41
  42   return 0;
  43 }