gcc/testsuite/gcc.target/arm/neon-nested-apcs.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target arm_neon_hw } */
   3 /* { dg-options "-fno-omit-frame-pointer -mapcs-frame -O -mfloat-abi=softfp -mfpu=neon" } */
   4
   5 extern void abort (void);
   6
   7 float data;
   8
   9 void __attribute__((noinline, noclone)) bar (float f)
  10 {
  11   data = f;
  12 }
  13
  14 float __attribute__((noinline, noclone)) foo (float f)
  15 {
  16   int error_reported = 0;
  17
  18   void __attribute__((noinline, noclone))
  19   nested (int a, int b, int c, int d, float f0, float f1, float f2, float f3)
  20   {
  21     float e;
  22
  23     if (f3 > f2)
  24       e = f3;
  25     else
  26       e = f2;
  27
  28     if (f0 - f1 > e)
  29       {
  30         error_reported = a + b + c + d;
  31         bar (f0);
  32         bar (e);
  33       }
  34   }
  35
  36   nested (1, 2, 3, 4, 1.0, 1.0, 3.5, 4.2);
  37   return f + (float)error_reported;
  38 }
  39
  40 #define PI 3.1415927f
  41
  42 int main (void)
  43 {
  44   if (foo (PI) != PI)
  45     abort ();
  46   return 0;
  47 }