gcc/testsuite/gcc.dg/vect/vect-120.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target vect_float } */
   3 /* { dg-require-effective-target vect_shift } */
   4 /* { dg-require-effective-target vect_floatint_cvt } */
   5
   6 static inline float
   7 i2f(int x)
   8 {
   9   union { float f; int i; } tmp;
  10   tmp.i=x;
  11   return tmp.f;
  12 }
  13 static inline float
  14 vect_ldexpf(float x, int n)
  15 {
  16   n = (n+0x7f)<<23;
  17   return x * i2f(n);
  18 }
  19
  20 float __attribute__ ((aligned(16))) a[1024];
  21 float __attribute__ ((aligned(16))) b[1024];
  22 float __attribute__ ((aligned(16))) c[1024];
  23
  24 void
  25 tV()
  26 {
  27   int i;
  28   for (i=0; i!=1024; ++i)
  29     {
  30       float z = a[i];
  31       int n = b[i];
  32       c[i] = vect_ldexpf(z,n);
  33     }
  34 }
  35
  36 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */