gcc/testsuite/gcc.target/arm/attr-neon.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_neon_ok } */
   3 /* { dg-options "-O2 -ftree-vectorize" } */
   4 /* { dg-add-options arm_neon arm_v8_vfp } */ /* The arm_v8_vfp adds -mfpu=fp-armv8 to the command line, overriding any -mfpu= option set by arm_neon, thus ensuring that the attributes below really are checked for correct fpu selection.  */
   5
   6 /* Verify that neon instructions are emitted once.  */
   7 void __attribute__ ((target("fpu=neon")))
   8  f1(int n, int x[], int y[]) {
   9   int i;
  10   for (i = 0; i < n; ++i)
  11     y[i] = x[i] << 3;
  12 }
  13
  14 void __attribute__ ((target("fpu=vfp")))
  15 f3(int n, int x[], int y[]) {
  16   int i;
  17   for (i = 0; i < n; ++i)
  18     y[i] = x[i] << 3;
  19 }
  20
  21 /* { dg-final { scan-assembler-times "\.fpu vfp" 1 } } */
  22 /* { dg-final { scan-assembler-times "\.fpu neon" 1 } } */
  23 /* { dg-final { scan-assembler-times "vshl" 1 } } */