gcc/testsuite/gcc.target/powerpc/direct-move-vector.c

   1 /* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
   2 /* { dg-require-effective-target powerpc_p9vector_ok } */
   3 /* { dg-options "-mdejagnu-cpu=power9 -O2" } */
   4
   5 /* Check code generation for direct move for long types.  */
   6
   7 void
   8 test (vector double *p)
   9 {
  10   vector double v1 = *p;
  11   vector double v2;
  12   vector double v3;
  13   vector double v4;
  14
  15   /* Force memory -> FPR load.  */
  16   __asm__ (" # reg %x0" : "+d" (v1));
  17
  18   /* force VSX -> GPR direct move.  */
  19   v2 = v1;
  20   __asm__ (" # reg %0" : "+r" (v2));
  21
  22   /* Force GPR -> Altivec direct move.  */
  23   v3 = v2;
  24   __asm__ (" # reg %x0" : "+v" (v3));
  25   *p = v3;
  26 }
  27
  28 /* { dg-final { scan-assembler "mfvsrd"  } } */
  29 /* { dg-final { scan-assembler "mfvsrld" } } */
  30 /* { dg-final { scan-assembler "mtvsrdd" } } */
  31
  32