1 files changed, 39 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0273-PR-tree-optimization-49000.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0273-PR-tree-optimization-49000.patch
new file mode 100644
index 0000000000..6d146eca28
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0273-PR-tree-optimization-49000.patch
@@ -0,0 +1,39 @@
+From f06cb0f7aea5a275c4ae4b35f19db407fa65a3f7 Mon Sep 17 00:00:00 2001
+From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date: Wed, 18 May 2011 09:29:46 +0000
+Subject: [PATCH]        PR tree-optimization/49000
+        * tree-ssa.c (execute_update_addresses_taken): Call
+        maybe_rewrite_mem_ref_base on debug stmt value.  If it couldn't
+        be rewritten and decl has been marked for renaming, reset
+        the debug stmt.
+
+        * gcc.dg/pr49000.c: New test.
+
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173850 138bc75d-0d04-0410-961f-82ee72b054a4
+
+index 12ceb8e..d3585ce 100644
+index 0455680..649f625 100644
+--- a/gcc/tree-ssa.c
++++ b/gcc/tree-ssa.c
+@@ -2205,6 +2205,17 @@ execute_update_addresses_taken (void)
+                  }
+              }
+ 
++           else if (gimple_debug_bind_p (stmt)
++                    && gimple_debug_bind_has_value_p (stmt))
++             {
++               tree *valuep = gimple_debug_bind_get_value_ptr (stmt);
++               tree decl;
++               maybe_rewrite_mem_ref_base (valuep);
++               decl = non_rewritable_mem_ref_base (*valuep);
++               if (decl && symbol_marked_for_renaming (decl))
++                 gimple_debug_bind_reset_value (stmt);
++             }
++
+            if (gimple_references_memory_p (stmt)
+                || is_gimple_debug (stmt))
+              update_stmt (stmt);
+-- 
+1.7.0.4
+