gcc/testsuite/c-c++-common/Wtautological-compare-8.c

   1 /* { dg-options "-Wtautological-compare" } */
   2
   3 int foo;
   4 #define INCOMING_FRAME_SP_OFFSET foo
   5 #define DEFAULT_INCOMING_FRAME_SP_OFFSET INCOMING_FRAME_SP_OFFSET
   6
   7 int test (void)
   8 {
   9   if (DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET) /* { dg-warning "self-comparison" "" { target c } } */
  10     return 1;
  11   else
  12     return 0;
  13 }
  14
  15 #define BYTES_BIG_ENDIAN foo
  16 #define WORDS_BIG_ENDIAN foo
  17
  18 int test_2 (void)
  19 {
  20   if (BYTES_BIG_ENDIAN != WORDS_BIG_ENDIAN) /* { dg-warning "self-comparison" "" { target c } } */
  21     return 1;
  22   else
  23     return 0;
  24 }
  25
  26 #define COND DEFAULT_INCOMING_FRAME_SP_OFFSET != INCOMING_FRAME_SP_OFFSET
  27 int test_3 (void)
  28 {
  29   if (COND)
  30     return 1;
  31   else
  32     return 0;
  33 }