From: Richard Henderson <rth@redhat.com>
Date: Thu, 31 Jan 2008 00:05:19 +0000 (-0800)
Subject: re PR c/34993 (ICE with attribute for array with unknown bound)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2ae7b972a6fdb321691483655f6de98b02e83a46;p=gcc.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: r131970
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 783fd914f50..2ecebda493e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-30  Richard Henderson  <rth@redhat.com>
+
+	PR c/34993
+	* tree.c (build_type_attribute_qual_variant): Skip TYPE_DOMAIN
+	for unbounded arrays.
+
 2008-01-30  Silvius Rus  <rus@google.com>
 
 	* config/i386/xmmintrin.h (_mm_prefetch): Add const to first arg.
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 00000000000..ced4d5646c1
--- /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 f61e24bac09..043968cb95f 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -3701,8 +3701,9 @@ 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