PR c/4784

	* c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
	structures and unions recursively.
	(detect_field_duplicates): Move duplicate detection with a hash to
	detect_field_duplicates_hash.  Always use a hash if anonymous
	structures or unions are present.
	* doc/extend.texi (Unnamed Fields): Document that duplicate fields
	give errors.

testsuite:
	* gcc.dg/anon-struct-9.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@159204 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3a9d1f9..8879737 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,14 @@
+2010-05-09  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/4784
+       * c-decl.c (detect_field_duplicates_hash): New.  Handle anonymous
+       structures and unions recursively.
+       (detect_field_duplicates): Move duplicate detection with a hash to
+       detect_field_duplicates_hash.  Always use a hash if anonymous
+       structures or unions are present.
+       * doc/extend.texi (Unnamed Fields): Document that duplicate fields
+       give errors.
+
 2010-05-09  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/44046

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index bd28f18..cf4140d 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-05-09  Joseph Myers  <joseph@codesourcery.com>
+
+       PR c/4784
+       * gcc.dg/anon-struct-9.c: New test.
+
 2010-05-09  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/44043

diff --git a/gcc/testsuite/gcc.dg/anon-struct-9.c b/gcc/testsuite/gcc.dg/anon-struct-9.c
index d223490..2658ccb 100644 (file)
--- a/gcc/testsuite/gcc.dg/anon-struct-9.c
+++ b/gcc/testsuite/gcc.dg/anon-struct-9.c
@@ -120,8 +120,8 @@ struct sbig
   S10(f)
   S10(g)
   S10(h)
+  S10(i)
   S10(j)
-  S10(k)
   struct
   {
     int a123; /* { dg-error "duplicate member" } */