gcc/testsuite/gcc.dg/fold-condneg-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 int test_i0(int x)
   5 {
   6   return x != 0 ? -x : 0;
   7 }
   8
   9 int test_i1(int x)
  10 {
  11   return x != 1 ? -x : -1;
  12 }
  13
  14 int test_im1(int x)
  15 {
  16   return x != -1 ? -x : 1;
  17 }
  18
  19 unsigned int test_u0(unsigned int x)
  20 {
  21   return x != 0 ? -x : 0;
  22 }
  23
  24 unsigned int test_u1(unsigned int x)
  25 {
  26   return x != 1 ? -x : ~0u;
  27 }
  28
  29 unsigned int test_um1(unsigned int x)
  30 {
  31   return x != ~0u ? -x : 1;
  32 }
  33
  34 unsigned char test_uc0(unsigned char x)
  35 {
  36   return x != 0 ? -x : 0;
  37 }
  38
  39 unsigned char test_uc1(unsigned char x)
  40 {
  41   return x != 1 ? -x : 255;
  42 }
  43
  44 unsigned char test_uc127(unsigned char x)
  45 {
  46   return x != 127 ? -x : 129;
  47 }
  48
  49 unsigned char test_uc128(unsigned char x)
  50 {
  51   return x != 128 ? -x : 128;
  52 }
  53
  54 unsigned char test_uc255(unsigned char x)
  55 {
  56   return x != 255 ? -x : 1;
  57 }
  58
  59 /* { dg-final { scan-tree-dump-not "goto" "optimized" } } */