gcc/testsuite/gcc.target/arm/sat-1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_arm_ok } */
   3 /* { dg-require-effective-target arm_arch_v6_ok } */
   4 /* { dg-options "-O2 -marm" } */
   5 /* { dg-add-options arm_arch_v6 } */
   6
   7
   8 static inline int sat1 (int a, int amin, int amax)
   9 {
  10   if      (a < amin) return amin;
  11   else if (a > amax) return amax;
  12   else               return a;
  13 }
  14
  15 static inline int sat2 (int a, int amin, int amax)
  16 {
  17   if      (a > amax) return amax;
  18   else if (a < amin) return amin;
  19   else               return a;
  20 }
  21
  22 int u1 (int x)
  23 {
  24   return sat1 (x, 0, 63);
  25 }
  26
  27 int us1 (int x)
  28 {
  29   return sat1 (x >> 5, 0, 63);
  30 }
  31
  32 int s1 (int x)
  33 {
  34   return sat1 (x, -64, 63);
  35 }
  36
  37 int ss1 (int x)
  38 {
  39   return sat1 (x >> 5, -64, 63);
  40 }
  41
  42 int u2 (int x)
  43 {
  44   return sat2 (x, 0, 63);
  45 }
  46
  47 int us2 (int x)
  48 {
  49   return sat2 (x >> 5, 0, 63);
  50 }
  51
  52 int s2 (int x)
  53 {
  54   return sat2 (x, -64, 63);
  55 }
  56
  57 int ss2 (int x)
  58 {
  59   return sat2 (x >> 5, -64, 63);
  60 }
  61
  62 /* { dg-final { scan-assembler-times "usat" 4 } } */
  63 /* { dg-final { scan-assembler-times "ssat" 4 } } */
  64