re PR c/79413 (ICE in make_ssa_name_fn, at tree-ssanames.c:265)

	PR c/79413
	* gimplify.h (is_gimple_sizepos): Only test for INTEGER_CST constants,
	not arbitrary TREE_CONSTANT.

	* gcc.c-torture/compile/pr79413.c: New test.

From-SVN: r245304

gcc/ChangeLog

 2017-02-09  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c/79413
+	* gimplify.h (is_gimple_sizepos): Only test for INTEGER_CST constants,
+	not arbitrary TREE_CONSTANT.
+
 	PR c/79431
 	* gimplify.c (gimplify_adjust_omp_clauses): Ignore
 	"omp declare target link" attribute unless is_global_var.

gcc/gimplify.h

@@ -99,7 +99,7 @@ is_gimple_sizepos (tree expr)
      but that will cause problems if this type is from outside the function.
      It's OK to have that here.  */
   return (expr == NULL_TREE
-	  || TREE_CONSTANT (expr)
+	  || TREE_CODE (expr) == INTEGER_CST
 	  || TREE_CODE (expr) == VAR_DECL
 	  || CONTAINS_PLACEHOLDER_P (expr));
 }                                        

gcc/testsuite/ChangeLog

 2017-02-09  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c/79413
+	* gcc.c-torture/compile/pr79413.c: New test.
+
 	PR c++/79429
 	* c-c++-common/gomp/pr79429.c: New test.
 	* g++.dg/gomp/pr79429.C: New test.

gcc/testsuite/gcc.c-torture/compile/pr79413.c

+/* PR c/79413 */
+
+void
+foo ()
+{
+  int a[1/0];
+}
+
+void
+bar (void)
+{
+  foo ();
+}