From: rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 25 Feb 2005 01:56:14 +0000 (+0000)
Subject:         PR tree-opt/20127
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=e557e5850b3200b0dd00123f4e77ed23a9184aa2;hp=521f3adaa1baeaf00caf66ecb1761b845c1bcea7

    PR tree-opt/20127
        * tree-sra.c (instantiate_element): Copy TREE_THIS_VOLATILE from
        the type.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@95530 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 36d0804bbd5..26aea68902a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-02-24  Richard Henderson  <rth@redhat.com>
+
+	PR tree-opt/20127
+	* tree-sra.c (instantiate_element): Copy TREE_THIS_VOLATILE from
+	the type.
+
 2005-02-24  Fariborz Jahanian <fjahanian@apple.com>
 
 	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Check for
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index 15109045375..267655d4bdf 100644
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -1116,6 +1116,12 @@ instantiate_element (struct sra_elt *elt)
   DECL_SOURCE_LOCATION (var) = DECL_SOURCE_LOCATION (base);
   DECL_ARTIFICIAL (var) = 1;
 
+  if (TREE_THIS_VOLATILE (elt->type))
+    {
+      TREE_THIS_VOLATILE (var) = 1;
+      TREE_SIDE_EFFECTS (var) = 1;
+    }
+
   if (DECL_NAME (base) && !DECL_IGNORED_P (base))
     {
       char *pretty_name = build_element_name (elt);