gcc/testsuite/gcc.target/powerpc/vec-cmp-sel.c

   1 /* { dg-do compile { target powerpc64*-*-* } } */
   2 /* { dg-require-effective-target powerpc_vsx_ok } */
   3 /* { dg-require-effective-target powerpc_vsx_ok } */
   4 /* { dg-options "-maltivec -O2 -mvsx" } */
   5 /* { dg-additional-options "-mdejagnu-cpu=power8" { target { ! has_arch_pwr8 } } } */
   6 /* { dg-final { scan-assembler "vcmpgtsd" } } */
   7 /* { dg-final { scan-assembler-not "xxlnor" } } */
   8
   9 /* Test code in simplify-rtx.c that converts
  10      (!c) != {0,...,0} ? a : b
  11    into
  12      c != {0,...,0} ? b : a  */
  13
  14 #include <altivec.h>
  15
  16 volatile vector signed long long x = { 25399, -12900 };
  17 volatile vector signed long long y = { 12178, -9987 };
  18
  19 vector signed long long foo () {
  20   vector bool long long b = vec_cmpge (x, y);
  21   vector signed long long z = vec_sel (y, x, b);
  22   return z;
  23 }