gcc/testsuite/gcc.target/powerpc/pragma_power8.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target lp64 } */
   3 /* Ensure there is no explicit -mno-vsx etc., otherwise
   4    the below bif __builtin_vec_vcmpeq_p replies on power8
   5    vsx would fail.  */
   6 /* { dg-require-effective-target powerpc_vsx } */
   7 /* { dg-options "-mdejagnu-cpu=power6 -maltivec -O2" } */
   8
   9 #include <altivec.h>
  10
  11 #pragma GCC target ("cpu=power6,altivec")
  12 #ifdef _ARCH_PWR6
  13 vector int
  14 test1 (vector int a, vector int b)
  15 {
  16   return vec_add (a, b);
  17 }
  18 #else
  19 #error failed power6 pragma target
  20 #endif
  21
  22 #pragma GCC target ("cpu=power7")
  23 /* Force a re-read of altivec.h with new cpu target. */
  24 #undef _ALTIVEC_H
  25 #undef _RS6000_VECDEFINES_H
  26 #include <altivec.h>
  27 #ifdef _ARCH_PWR7
  28 vector signed int
  29 test2 (vector signed int a, vector signed int b)
  30 {
  31   return vec_sldw (a, b, 3);
  32 }
  33 #else
  34 #error failed to set power7 pragma target
  35 #endif
  36
  37 #pragma GCC target ("cpu=power8")
  38 /* Force a re-read of altivec.h with new cpu target. */
  39 #undef _ALTIVEC_H
  40 #undef _RS6000_VECDEFINES_H
  41 #include <altivec.h>
  42 #ifdef _ARCH_PWR8
  43 vector int
  44 test3 (vector int a, vector int b)
  45 {
  46   return vec_mergee (a, b);
  47 }
  48 typedef __attribute__((altivec(vector__))) long vec_t;
  49 int
  50 test3b (vec_t a, vec_t b)
  51 {
  52   return __builtin_vec_vcmpeq_p (2, a, b);
  53 }
  54 #else
  55 #error failed to set power8 pragma target.
  56 #endif
  57