gcc/testsuite/gcc.target/visium/overflow8.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 #include <stdbool.h>
   5
   6 bool my_uadd_overflow (unsigned char a, unsigned char b, unsigned char *res)
   7 {
   8   return __builtin_add_overflow (a, b, res);
   9 }
  10
  11 bool my_usub_overflow (unsigned char a, unsigned char b, unsigned char *res)
  12 {
  13   return __builtin_sub_overflow (a, b, res);
  14 }
  15
  16 bool my_uneg_overflow (unsigned char a, unsigned char *res)
  17 {
  18   return __builtin_sub_overflow (0, a, res);
  19 }
  20
  21 bool my_add_overflow (signed char a, signed char b, signed char *res)
  22 {
  23   return __builtin_add_overflow (a, b, res);
  24 }
  25
  26 bool my_sub_overflow (signed char a, signed char b, signed char *res)
  27 {
  28   return __builtin_sub_overflow (a, b, res);
  29 }
  30
  31 bool my_neg_overflow (signed char a, signed char *res)
  32 {
  33   return __builtin_sub_overflow (0, a, res);
  34 }
  35
  36 /* { dg-final { scan-assembler-times "add.b" 2 } } */
  37 /* { dg-final { scan-assembler-times "sub.b" 4 } } */
  38 /* { dg-final { scan-assembler-not "cmp.b" } } */