gcc/testsuite/c-c++-common/Wshift-overflow-7.c

   1 /* PR c++/55095 */
   2 /* { dg-do compile { target int32 } } */
   3 /* { dg-options "-Wshift-overflow=2" } */
   4 /* { dg-additional-options "-std=c++11" { target c++ } } */
   5
   6 int i00 = 0b1 << 31; /* { dg-warning "requires 33 bits to represent" } */
   7 int i01 = 0b10 << 30; /* { dg-warning "requires 33 bits to represent" } */
   8 int i02 = 0b100 << 29; /* { dg-warning "requires 33 bits to represent" } */
   9 int i03 = 0b1000 << 28; /* { dg-warning "requires 33 bits to represent" } */
  10 int i04 = 0b10000 << 27; /* { dg-warning "requires 33 bits to represent" } */
  11 int i05 = 0b100000 << 26; /* { dg-warning "requires 33 bits to represent" } */
  12 int i06 = 0b1000000 << 25; /* { dg-warning "requires 33 bits to represent" } */
  13 int i07 = 0b10000000 << 24; /* { dg-warning "requires 33 bits to represent" } */
  14 int i08 = 0b100000000 << 23; /* { dg-warning "requires 33 bits to represent" } */
  15 int i09 = 0b1000000000 << 22; /* { dg-warning "requires 33 bits to represent" } */
  16 int i10 = 0b10000000000 << 21; /* { dg-warning "requires 33 bits to represent" } */
  17 int i11 = 0b100000000000 << 20; /* { dg-warning "requires 33 bits to represent" } */
  18 int i12 = 0b1000000000000 << 19; /* { dg-warning "requires 33 bits to represent" } */
  19 int i13 = 0b10000000000000 << 18; /* { dg-warning "requires 33 bits to represent" } */
  20 int i14 = 0b100000000000000 << 17; /* { dg-warning "requires 33 bits to represent" } */
  21 int i15 = 0b1000000000000000 << 16; /* { dg-warning "requires 33 bits to represent" } */
  22 int i16 = 0b10000000000000000 << 15; /* { dg-warning "requires 33 bits to represent" } */
  23 int i17 = 0b100000000000000000 << 14; /* { dg-warning "requires 33 bits to represent" } */
  24 int i18 = 0b1000000000000000000 << 13; /* { dg-warning "requires 33 bits to represent" } */
  25 int i19 = 0b10000000000000000000 << 12; /* { dg-warning "requires 33 bits to represent" } */
  26 int i20 = 0b100000000000000000000 << 11; /* { dg-warning "requires 33 bits to represent" } */
  27 int i21 = 0b1000000000000000000000 << 10; /* { dg-warning "requires 33 bits to represent" } */
  28 int i22 = 0b10000000000000000000000 << 9; /* { dg-warning "requires 33 bits to represent" } */
  29 int i23 = 0b100000000000000000000000 << 8; /* { dg-warning "requires 33 bits to represent" } */
  30 int i24 = 0b1000000000000000000000000 << 7; /* { dg-warning "requires 33 bits to represent" } */
  31 int i25 = 0b10000000000000000000000000 << 6; /* { dg-warning "requires 33 bits to represent" } */
  32 int i26 = 0b100000000000000000000000000 << 5; /* { dg-warning "requires 33 bits to represent" } */
  33 int i27 = 0b1000000000000000000000000000 << 4; /* { dg-warning "requires 33 bits to represent" } */
  34 int i28 = 0b10000000000000000000000000000 << 3; /* { dg-warning "requires 33 bits to represent" } */
  35 int i29 = 0b100000000000000000000000000000 << 2; /* { dg-warning "requires 33 bits to represent" } */
  36 int i30 = 0b1000000000000000000000000000000 << 1; /* { dg-warning "requires 33 bits to represent" } */
  37 int i31 = (int) 0b10000000000000000000000000000000u << 1; /* { dg-warning "requires 33 bits to represent" } */