gcc/testsuite/gcc.dg/vect/fast-math-vect-call-1.c

   1 #include "tree-vect.h"
   2
   3 extern float copysignf (float, float);
   4 extern float sqrtf (float);
   5 extern float fabsf (float);
   6 extern void abort (void);
   7 float a[64], b[64], c[64], d[64];
   8
   9 __attribute__((noinline, noclone)) void
  10 f1 (int n)
  11 {
  12   int i;
  13   for (i = 0; i < n; i++)
  14     {
  15       a[4 * i + 0] = copysignf (b[4 * i + 0], c[4 * i + 0]) + 1.0f + sqrtf (d[4 * i + 0]);
  16       a[4 * i + 1] = copysignf (b[4 * i + 1], c[4 * i + 1]) + 2.0f + sqrtf (d[4 * i + 1]);
  17       a[4 * i + 2] = copysignf (b[4 * i + 2], c[4 * i + 2]) + 3.0f + sqrtf (d[4 * i + 2]);
  18       a[4 * i + 3] = copysignf (b[4 * i + 3], c[4 * i + 3]) + 4.0f + sqrtf (d[4 * i + 3]);
  19     }
  20 }
  21
  22 __attribute__((noinline, noclone)) void
  23 f2 (int n)
  24 {
  25   int i;
  26   for (i = 0; i < 2 * n; i++)
  27     {
  28       a[2 * i + 0] = copysignf (b[2 * i + 0], c[2 * i + 0]) + 1.0f + sqrtf (d[2 * i + 0]);
  29       a[2 * i + 1] = copysignf (b[2 * i + 1], c[2 * i + 1]) + 2.0f + sqrtf (d[2 * i + 1]);
  30     }
  31 }
  32
  33 __attribute__((noinline, noclone)) void
  34 f3 (void)
  35 {
  36   int i;
  37   for (i = 0; i < 64; i++)
  38     a[i] = copysignf (b[i], c[i]) + 1.0f + sqrtf (d[i]);
  39 }
  40
  41 __attribute__((noinline, noclone)) void
  42 f4 (int n)
  43 {
  44   int i;
  45   for (i = 0; i < 2 * n; i++)
  46     {
  47       a[3 * i + 0] = copysignf (b[3 * i + 0], c[3 * i + 0]) + 1.0f + sqrtf (d[3 * i + 0]);
  48       a[3 * i + 1] = copysignf (b[3 * i + 1], c[3 * i + 1]) + 2.0f + sqrtf (d[3 * i + 1]);
  49       a[3 * i + 2] = copysignf (b[3 * i + 2], c[3 * i + 2]) + 3.0f + sqrtf (d[3 * i + 2]);
  50     }
  51 }
  52
  53 __attribute__((noinline, noclone)) int
  54 main1 ()
  55 {
  56   int i;
  57
  58   for (i = 0; i < 64; i++)
  59     {
  60       asm ("");
  61       b[i] = (i & 1) ? -4 * i : 4 * i;
  62       c[i] = (i & 2) ? -8 * i : 8 * i;
  63       d[i] = i * i;
  64     }
  65   f1 (16);
  66   for (i = 0; i < 64; i++)
  67     if (fabsf (((i & 2) ? -4 * i : 4 * i) + 1 + (i & 3) + i - a[i]) >= 0.0001f)
  68       abort ();
  69     else
  70       a[i] = 131.25;
  71   f2 (16);
  72   for (i = 0; i < 64; i++)
  73     if (fabsf (((i & 2) ? -4 * i : 4 * i) + 1 + (i & 1) + i - a[i]) >= 0.0001f)
  74       abort ();
  75     else
  76       a[i] = 131.25;
  77   f3 ();
  78   for (i = 0; i < 64; i++)
  79     if (fabsf (((i & 2) ? -4 * i : 4 * i) + 1 + i - a[i]) >= 0.0001f)
  80       abort ();
  81     else
  82       a[i] = 131.25;
  83   f4 (10);
  84   for (i = 0; i < 60; i++)
  85     if (fabsf (((i & 2) ? -4 * i : 4 * i) + 1 + (i % 3) + i - a[i]) >= 0.0001f)
  86       abort ();
  87   return 0;
  88 }
  89
  90 int
  91 main ()
  92 {
  93   check_vect ();
  94   return main1 ();
  95 }
  96
  97 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 4 "vect" { target { vect_call_copysignf && vect_call_sqrtf } } } } */
  98 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 3 "vect" { target { vect_call_copysignf && vect_call_sqrtf } } } } */