gcc/testsuite/gcc.target/powerpc/pr66144-3.c

   1 /* { dg-do compile { target { powerpc64*-*-* } } } */
   2 /* { dg-require-effective-target powerpc_vsx_ok } */
   3 /* { dg-options "-mdejagnu-cpu=power8 -mvsx -O2 -ftree-vectorize" } */
   4
   5 /* Verify that we can optimize a vector conditional move, where one of the arms
   6    is all 1's into using the mask as one of the inputs to XXSEL.  */
   7
   8 #include <altivec.h>
   9
  10 static int a[1024], b[1024], c[1024];
  11
  12 int *p_a = a, *p_b = b, *p_c = c;
  13
  14 void
  15 test (void)
  16 {
  17   unsigned long i;
  18
  19   for (i = 0; i < 1024; i++)
  20     a[i] = (b[i] == c[i]) ? -1 : a[i];
  21 }
  22
  23 /* { dg-final { scan-assembler     {\mvcmpequw\M} } } */
  24 /* { dg-final { scan-assembler     {\mxxsel\M}    } } */
  25 /* { dg-final { scan-assembler-not {\mvspltisw\M} } } */
  26 /* { dg-final { scan-assembler-not {\mxxlorc\M}   } } */