From: ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 10 May 2012 22:17:37 +0000 (+0000)
Subject: 	* dwarf2out.c (add_byte_size_attribute) <RECORD_TYPE>: Handle variable
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=670b32abef68deb992b7d74a5a0711a5da8466fa;p=thirdparty%2Fgcc.git

	* dwarf2out.c (add_byte_size_attribute) <RECORD_TYPE>: Handle variable
	reference as size attribute.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@187384 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 856c6756ea96..2a278351673f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* dwarf2out.c (add_byte_size_attribute) <RECORD_TYPE>: Handle variable
+	reference as size attribute.
+
 2012-05-10  Eric Botcazou  <ebotcazou@adacore.com>
 	    Tristan Gingold  <gingold@adacore.com>
 
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 7460bbf670e4..1e5e335cdb30 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -15156,6 +15156,7 @@ add_subscript_info (dw_die_ref type_die, tree type, bool collapse_p)
 static void
 add_byte_size_attribute (dw_die_ref die, tree tree_node)
 {
+  dw_die_ref decl_die;
   unsigned size;
 
   switch (TREE_CODE (tree_node))
@@ -15167,6 +15168,12 @@ add_byte_size_attribute (dw_die_ref die, tree tree_node)
     case RECORD_TYPE:
     case UNION_TYPE:
     case QUAL_UNION_TYPE:
+      if (TREE_CODE (TYPE_SIZE_UNIT (tree_node)) == VAR_DECL
+	  && (decl_die = lookup_decl_die (TYPE_SIZE_UNIT (tree_node))))
+	{
+	  add_AT_die_ref (die, DW_AT_byte_size, decl_die);
+	  return;
+	}
       size = int_size_in_bytes (tree_node);
       break;
     case FIELD_DECL: