PR tree-opt/14329

        * tree.h (struct tree_decl): Add debug_expr_is_from.
        (DECL_DEBUG_EXPR_IS_FROM): New.
        (DECL_DEBUG_EXPR): Rename from DECL_DEBUG_ALIAS_OF.
        * dwarf2out.c (dwarf2out_var_location): Update to match.
        * tree-outof-ssa.c (create_temp): Likewise.
        * var-tracking.c (track_expr_p): Likewise.
        * tree-sra.c (instantiate_element): Set DECL_DEBUG_EXPR.
        * c-objc-common.c (c_tree_printer) <'D'>: Handle DECL_DEBUG_EXPR.
        * toplev.c (default_tree_printer): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@94317 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 3 deletions

diff --git a/gcc/tree-outof-ssa.c b/gcc/tree-outof-ssa.c
index 430e8cae58a..65c74d310a4 100644
--- a/gcc/tree-outof-ssa.c
+++ b/gcc/tree-outof-ssa.c
@@ -157,10 +157,16 @@ create_temp (tree t)
     name = "temp";
   tmp = create_tmp_var (type, name);
 
-  if (DECL_DEBUG_ALIAS_OF (t))
-    DECL_DEBUG_ALIAS_OF (tmp) = DECL_DEBUG_ALIAS_OF (t);  
+  if (DECL_DEBUG_EXPR (t) && DECL_DEBUG_EXPR_IS_FROM (t))
+    {
+      DECL_DEBUG_EXPR (tmp) = DECL_DEBUG_EXPR (t);  
+      DECL_DEBUG_EXPR_IS_FROM (tmp) = 1;
+    }
   else if (!DECL_IGNORED_P (t))
-    DECL_DEBUG_ALIAS_OF (tmp) = t;
+    {
+      DECL_DEBUG_EXPR (tmp) = t;
+      DECL_DEBUG_EXPR_IS_FROM (tmp) = 1;
+    }
   DECL_ARTIFICIAL (tmp) = DECL_ARTIFICIAL (t);
   DECL_IGNORED_P (tmp) = DECL_IGNORED_P (t);
   add_referenced_tmp_var (tmp);