[gcc r12-5476] rs6000: Better error messages for power8/9 vector builtins

[gcc r12-5476] rs6000: Better error messages for power8/9 vector builtins

[William Schmidt]

https://gcc.gnu.org/g:d6024c85a1ce568f874afa1d9431c43eccba2f59

commit r12-5476-gd6024c85a1ce568f874afa1d9431c43eccba2f59
Author: Bill Schmidt <wschmidt@linux.ibm.com>
Date:   Thu Nov 11 16:11:03 2021 -0600

    rs6000: Better error messages for power8/9 vector builtins
    
    2021-11-11  Bill Schmidt  <wschmidt@linux.ibm.com>
    
    gcc/
            * config/rs6000/rs6000-call.c (rs6000_invalid_new_builtin): Change
            error messages for ENB_P8V and ENB_P9V.

Diff:
---
 gcc/config/rs6000/rs6000-call.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c
index 310bf13bbf1..a532be4b1fb 100644
--- a/gcc/config/rs6000/rs6000-call.c
+++ b/gcc/config/rs6000/rs6000-call.c
@@ -11943,7 +11943,8 @@ rs6000_invalid_new_builtin (enum rs6000_gen_builtins fncode)
       error ("%qs requires the %qs option", name, "-mcpu=power8");
       break;
     case ENB_P8V:
-      error ("%qs requires the %qs option", name, "-mpower8-vector");
+      error ("%qs requires the %qs and %qs options", name, "-mcpu=power8",
+	     "-mvsx");
       break;
     case ENB_P9:
       error ("%qs requires the %qs option", name, "-mcpu=power9");
@@ -11953,7 +11954,8 @@ rs6000_invalid_new_builtin (enum rs6000_gen_builtins fncode)
 	     name, "-mcpu=power9", "-m64", "-mpowerpc64");
       break;
     case ENB_P9V:
-      error ("%qs requires the %qs option", name, "-mpower9-vector");
+      error ("%qs requires the %qs and %qs options", name, "-mcpu=power9",
+	     "-mvsx");
       break;
     case ENB_IEEE128_HW:
       error ("%qs requires ISA 3.0 IEEE 128-bit floating point", name);