gcc/testsuite/gcc.dg/builtin-arith-overflow-5.c

   1 /* PR rtl-optimization/95862 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 int
   6 f1 (int a, int b)
   7 {
   8   unsigned long long c;
   9   return __builtin_mul_overflow (a, b, &c);
  10 }
  11
  12 int
  13 f2 (int a, unsigned b)
  14 {
  15   unsigned long long c;
  16   return __builtin_mul_overflow (a, b, &c);
  17 }
  18
  19 int
  20 f3 (unsigned a, unsigned b)
  21 {
  22   long long c;
  23   return __builtin_mul_overflow (a, b, &c);
  24 }
  25
  26 int
  27 f4 (int a, unsigned b)
  28 {
  29   long long c;
  30   return __builtin_mul_overflow (a, b, &c);
  31 }
  32
  33 short
  34 f5 (short a, short b)
  35 {
  36   unsigned c;
  37   return __builtin_mul_overflow (a, b, &c);
  38 }
  39
  40 short
  41 f6 (short a, unsigned short b)
  42 {
  43   unsigned c;
  44   return __builtin_mul_overflow (a, b, &c);
  45 }
  46
  47 short
  48 f7 (unsigned short a, unsigned short b)
  49 {
  50   int c;
  51   return __builtin_mul_overflow (a, b, &c);
  52 }
  53
  54 short
  55 f8 (short a, unsigned short b)
  56 {
  57   int c;
  58   return __builtin_mul_overflow (a, b, &c);
  59 }
  60
  61 signed char
  62 f9 (signed char a, signed char b)
  63 {
  64   unsigned short c;
  65   return __builtin_mul_overflow (a, b, &c);
  66 }
  67
  68 signed char
  69 f10 (signed char a, unsigned char b)
  70 {
  71   unsigned short c;
  72   return __builtin_mul_overflow (a, b, &c);
  73 }
  74
  75 signed char
  76 f11 (unsigned char a, unsigned char b)
  77 {
  78   short c;
  79   return __builtin_mul_overflow (a, b, &c);
  80 }
  81
  82 signed char
  83 f12 (signed char a, unsigned char b)
  84 {
  85   short c;
  86   return __builtin_mul_overflow (a, b, &c);
  87 }