gcc/testsuite/gcc.target/powerpc/conv-vectorize-1.c

   1 /* { dg-require-effective-target powerpc_vsx_ok } */
   2 /* { dg-options "-O2 -ftree-vectorize -mvsx -fno-vect-cost-model" } */
   3
   4 /* Test vectorizer can exploit vector conversion instructions to convert
   5    unsigned/signed long long to float.  */
   6
   7 #include <stddef.h>
   8
   9 #define SIZE 32
  10 #define ALIGN 16
  11
  12 float sflt_array[SIZE] __attribute__ ((__aligned__ (ALIGN)));
  13 float uflt_array[SIZE] __attribute__ ((__aligned__ (ALIGN)));
  14
  15 unsigned long long ulong_array[SIZE] __attribute__ ((__aligned__ (ALIGN)));
  16 signed long long slong_array[SIZE] __attribute__ ((__aligned__ (ALIGN)));
  17
  18 void
  19 convert_slong_to_float (void)
  20 {
  21   size_t i;
  22
  23   for (i = 0; i < SIZE; i++)
  24     sflt_array[i] = (float) slong_array[i];
  25 }
  26
  27 void
  28 convert_ulong_to_float (void)
  29 {
  30   size_t i;
  31
  32   for (i = 0; i < SIZE; i++)
  33     uflt_array[i] = (float) ulong_array[i];
  34 }
  35
  36 /* { dg-final { scan-assembler {\mxvcvsxdsp\M} } } */
  37 /* { dg-final { scan-assembler {\mxvcvuxdsp\M} } } */