From: Richard Henderson <rth@redhat.com>
Date: Fri, 1 Feb 2008 18:58:21 +0000 (-0800)
Subject: re PR c/34993 (ICE with attribute for array with unknown bound)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6faf32a11adcc724449c57950428ff344291b93;p=thirdparty%2Fgcc.git

re PR c/34993 (ICE with attribute for array with unknown bound)

        PR c/34993
        * tree.c (build_type_attribute_qual_variant): Skip TYPE_DOMAIN
        for unbounded arrays.

From-SVN: r132049
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 405c00155253..9d1a04557e47 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-31  Richard Henderson  <rth@redhat.com>
+
+        PR c/34993
+        * tree.c (build_type_attribute_qual_variant): Skip TYPE_DOMAIN
+        for unbounded arrays.
+
 2008-01-31  Andreas Krebbel  <krebbel1@de.ibm.com>
 
 	* config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): Rearrange
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr34993.c b/gcc/testsuite/gcc.c-torture/compile/pr34993.c
new file mode 100644
index 000000000000..ced4d5646c16
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr34993.c
@@ -0,0 +1,5 @@
+/* PR c/34993 */
+
+/* { dg-do compile } */
+
+typedef int x[] __attribute((may_alias));
diff --git a/gcc/tree.c b/gcc/tree.c
index e537e9cd3141..6541344f2e5d 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -3288,8 +3288,9 @@ build_type_attribute_qual_variant (tree ttype, tree attribute, int quals)
 	  hashcode = type_hash_list (TYPE_ARG_TYPES (ntype), hashcode);
 	  break;
 	case ARRAY_TYPE:
-	  hashcode = iterative_hash_object (TYPE_HASH (TYPE_DOMAIN (ntype)),
-					    hashcode);
+	  if (TYPE_DOMAIN (ntype))
+	    hashcode = iterative_hash_object (TYPE_HASH (TYPE_DOMAIN (ntype)),
+					      hashcode);
 	  break;
 	case INTEGER_TYPE:
 	  hashcode = iterative_hash_object