gcc/testsuite/gcc.target/powerpc/recip-4.c

   1 /* { dg-do compile { target { powerpc*-*-* } } } */
   2 /* { dg-require-effective-target powerpc_fprs } */
   3 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
   4 /* { dg-options "-O3 -ftree-vectorize -mrecip -ffast-math -mcpu=power7 -fno-unroll-loops" } */
   5 /* { dg-final { scan-assembler-times "xvrsqrtedp" 1 } } */
   6 /* { dg-final { scan-assembler-times "xvmuldp" 2 } } */
   7 /* { dg-final { scan-assembler-times "xvnmsub.dp" 2 } } */
   8 /* { dg-final { scan-assembler-times "xvmadd.dp" 3 } } */
   9 /* { dg-final { scan-assembler-times "xvrsqrtesp" 1 } } */
  10 /* { dg-final { scan-assembler-times "xvmulsp" 2 } } */
  11 /* { dg-final { scan-assembler-times "xvnmsub.sp" 1 } } */
  12 /* { dg-final { scan-assembler-times "xvmadd.sp" 1 } } */
  13
  14 #define SIZE 1024
  15
  16 extern double a_d[SIZE] __attribute__((__aligned__(32)));
  17 extern double b_d[SIZE] __attribute__((__aligned__(32)));
  18
  19 void
  20 vectorize_rsqrt_d (void)
  21 {
  22   int i;
  23
  24   for (i = 0; i < SIZE; i++)
  25     a_d[i] = 1.0 / __builtin_sqrt (b_d[i]);
  26 }
  27
  28 extern float a_f[SIZE] __attribute__((__aligned__(32)));
  29 extern float b_f[SIZE] __attribute__((__aligned__(32)));
  30
  31 void
  32 vectorize_rsqrt_f (void)
  33 {
  34   int i;
  35
  36   for (i = 0; i < SIZE; i++)
  37     a_f[i] = 1.0f / __builtin_sqrtf (b_f[i]);
  38 }