[PATCH 1/3] Error message on target attribute on power target (PR target/79906)

[marxin]

gcc/ChangeLog:

2017-03-13  Martin Liska  <mli...@suse.cz>

        PR target/79906
        * config/rs6000/rs6000.c (rs6000_inner_target_options): Show
        error message instead of an ICE.

gcc/testsuite/ChangeLog:

2017-03-13  Martin Liska  <mli...@suse.cz>

        PR target/79906
        * g++.dg/ext/mv8.C: Add power* targets.
---
 gcc/config/rs6000/rs6000.c     | 5 ++++-
 gcc/testsuite/g++.dg/ext/mv8.C | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a1b58e21450..8bf5ee098dd 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -39204,7 +39204,10 @@ rs6000_inner_target_options (tree args, bool attr_p)
     }
 
   else
-    gcc_unreachable ();
+    {
+      error ("attribute %<target%> argument not a string");
+      return false;
+    }
 
   return ret;
 }
diff --git a/gcc/testsuite/g++.dg/ext/mv8.C b/gcc/testsuite/g++.dg/ext/mv8.C
index 2e98dd7ad85..bbf90b5a328 100644
--- a/gcc/testsuite/g++.dg/ext/mv8.C
+++ b/gcc/testsuite/g++.dg/ext/mv8.C
@@ -1,4 +1,4 @@
-// { dg-do compile { target i?86-*-* x86_64-*-* } }
+// { dg-do compile { target i?86-*-* x86_64-*-* powerpc*-*-* } }
 // { dg-options "" }
 
 __attribute__((target (11,12)))
-- 
2.11.1