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" }
   4 /* { dg-add-options arm_neon } */
   5
   6 extern void abort (void);
   7
   8 float data;
   9
  10 void __attribute__((noinline, noclone)) bar (float f)
  11 {
  12   data = f;
  13 }
  14
  15 float __attribute__((noinline, noclone)) foo (float f)
  16 {
  17   int error_reported = 0;
  18
  19   void __attribute__((noinline, noclone))
  20   nested (int a, int b, int c, int d, float f0, float f1, float f2, float f3)
  21   {
  22     float e;
  23
  24     if (f3 > f2)
  25       e = f3;
  26     else
  27       e = f2;
  28
  29     if (f0 - f1 > e)
  30       {
  31         error_reported = a + b + c + d;
  32         bar (f0);
  33         bar (e);
  34       }
  35   }
  36
  37   nested (1, 2, 3, 4, 1.0, 1.0, 3.5, 4.2);
  38   return f + (float)error_reported;
  39 }
  40
  41 #define PI 3.1415927f
  42
  43 int main (void)
  44 {
  45   if (foo (PI) != PI)
  46     abort ();
  47   return 0;
  48 }