gcc/testsuite/gcc.target/arm/memset-inline-5.c

   1 /* { dg-do run } */
   2 /* { dg-skip-if "Don't inline memset using neon instructions" { ! arm_tune_string_ops_prefer_neon } } */
   3 /* { dg-options "-save-temps -O2 -fno-inline" } */
   4 /* { dg-add-options "arm_neon" } */
   5
   6 #include <string.h>
   7 #include <stdlib.h>
   8
   9 #define LEN (100)
  10 int a[LEN];
  11 int b[LEN];
  12 int c[LEN];
  13 int d[LEN];
  14 void
  15 foo1 (void)
  16 {
  17     memset (a, -1, 16);
  18     return;
  19 }
  20
  21 void
  22 foo2 (void)
  23 {
  24   memset (b, 1, 25);
  25   return;
  26 }
  27
  28 void
  29 foo3 (void)
  30 {
  31   memset (c, -1, 19);
  32   return;
  33 }
  34
  35 void
  36 foo4 (void)
  37 {
  38   memset (d, 1, 23);
  39   return;
  40 }
  41
  42 void
  43 check (signed char *arr, int idx, int len, int v)
  44 {
  45   int i;
  46   for (i = 0; i < idx; i++)
  47     if (arr[i] != v)
  48       abort ();
  49
  50   for (i = idx; i < len; i++)
  51     if (arr[i] != 0)
  52       abort ();
  53 }
  54
  55 int
  56 main(void)
  57 {
  58   foo1 ();
  59   check ((signed char *)a, 16, sizeof (a), -1);
  60
  61   foo2 ();
  62   check ((signed char *)b, 25, sizeof (b), 1);
  63
  64   foo3 ();
  65   check ((signed char *)c, 19, sizeof (c), -1);
  66
  67   foo4 ();
  68   check ((signed char *)d, 23, sizeof (d), 1);
  69
  70   return 0;
  71 }
  72
  73 /* { dg-final { scan-assembler-not "bl?\[ \t\]+memset" { target { arm_little_endian && arm_neon } } } } */
  74 /* { dg-final { scan-assembler "vst1" { target { arm_little_endian && arm_neon } } } } */
  75 /* { dg-final { scan-assembler-not "vstr"  { target { arm_little_endian && arm_neon } } } } */
  76