[PATCH 2/3] Error message on target attribute on aarch64 target (PR target/79889).

[marxin]

gcc/testsuite/ChangeLog:

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

        * g++.dg/ext/mv8.C: Add aarch64* targets.

gcc/ChangeLog:

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

        * config/aarch64/aarch64.c (aarch64_process_target_attr):
        Show error message instead of an ICE.
---
 gcc/config/aarch64/aarch64.c   | 8 ++++++--
 gcc/testsuite/g++.dg/ext/mv8.C | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index a069427f576..3107d6b84bf 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -9533,8 +9533,12 @@ aarch64_process_target_attr (tree args, const char* 
pragma_or_attr)
 
       return true;
     }
-  /* We expect to find a string to parse.  */
-  gcc_assert (TREE_CODE (args) == STRING_CST);
+
+  if (TREE_CODE (args) != STRING_CST)
+    {
+      error ("attribute %<target%> argument not a string");
+      return false;
+    }
 
   size_t len = strlen (TREE_STRING_POINTER (args));
   char *str_to_check = (char *) alloca (len + 1);
diff --git a/gcc/testsuite/g++.dg/ext/mv8.C b/gcc/testsuite/g++.dg/ext/mv8.C
index bbf90b5a328..b49ef84f392 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-*-* powerpc*-*-* } }
+// { dg-do compile { target i?86-*-* x86_64-*-* powerpc*-*-* aarch64*-*-* } }
 // { dg-options "" }
 
 __attribute__((target (11,12)))
-- 
2.11.1