gcc/testsuite/gcc.target/sparc/overflow-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O" } */
   3 /* { dg-require-effective-target lp64 } */
   4
   5 #include <stdbool.h>
   6 #include <stdint.h>
   7
   8 bool my_uadd_overflow (uint64_t a, uint64_t b, uint64_t *res)
   9 {
  10   return __builtin_add_overflow (a, b, res);
  11 }
  12
  13 bool my_usub_overflow (uint64_t a, uint64_t b, uint64_t *res)
  14 {
  15   return __builtin_sub_overflow (a, b, res);
  16 }
  17
  18 bool my_uneg_overflow (uint64_t a, uint64_t *res)
  19 {
  20   return __builtin_sub_overflow (0, a, res);
  21 }
  22
  23 bool my_add_overflow (int64_t a, int64_t b, int64_t *res)
  24 {
  25   return __builtin_add_overflow (a, b, res);
  26 }
  27
  28 bool my_sub_overflow (int64_t a, int64_t b, int64_t *res)
  29 {
  30   return __builtin_sub_overflow (a, b, res);
  31 }
  32
  33 bool my_neg_overflow (int64_t a, int64_t *res)
  34 {
  35   return __builtin_sub_overflow (0, a, res);
  36 }
  37
  38 /* { dg-final { scan-assembler-times "addcc\t%" 2 } } */
  39 /* { dg-final { scan-assembler-times "subcc\t%" 4 } } */
  40 /* { dg-final { scan-assembler-times "movlu\t%" 1 } } */
  41 /* { dg-final { scan-assembler-times "blu" 2 } } */
  42 /* { dg-final { scan-assembler-times "bvs" 3 } } */
  43 /* { dg-final { scan-assembler-not "cmp\t%" } } */
  44 /* { dg-final { scan-assembler-not "save\t%" } } */