re PR debug/47106 (-fcompare-debug failure (length) with -fpartial-inlining -flto -fconserve-stack)

PR debug/47106
PR debug/47402
* tree-flow.h (referenced_var_lookup): Add fn parameter.
Adjust all callers.
* tree-dfa.c (referenced_var_lookup): Use fn instead of cfun.
* tree-flow-inline.h: Adjust.
* gimple-pretty-print.c: Adjust.
* tree-into-ssa.c: Adjust.
* tree-ssa.c: Adjust.
* cfgexpand.c: Adjust.

From-SVN: r170185

8 files changed, 21 insertions, 8 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bc0d5ed..cc9ed6b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2011-02-15  Alexandre Oliva  <aoliva@redhat.com>
+
+	PR debug/47106
+	PR debug/47402
+	* tree-flow.h (referenced_var_lookup): Add fn parameter.
+	Adjust all callers.
+	* tree-dfa.c (referenced_var_lookup): Use fn instead of cfun.
+	* tree-flow-inline.h: Adjust.
+	* gimple-pretty-print.c: Adjust.
+	* tree-into-ssa.c: Adjust.
+	* tree-ssa.c: Adjust.
+	* cfgexpand.c: Adjust.
+
 2011-02-15  Nathan Froyd  <froydnj@codesourcery.com>
 
         * config/iq2000/i2000.h (REG_CLASS_FROM_LETTER): Delete.
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 7b1c441..6fdb10d 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -520,7 +520,7 @@ update_alias_info_with_stack_vars (void)
 	     for -O0 where we are preserving even unreferenced variables.  */
 	  gcc_assert (DECL_P (decl)
 		      && (!optimize
-			  || referenced_var_lookup (DECL_UID (decl))));
+			  || referenced_var_lookup (cfun, DECL_UID (decl))));
 	  bitmap_set_bit (part, uid);
 	  *((bitmap *) pointer_map_insert (decls_to_partitions,
 					   (void *)(size_t) uid)) = part;
diff --git a/gcc/gimple-pretty-print.c b/gcc/gimple-pretty-print.c
index cda0d16..747e8cd 100644
--- a/gcc/gimple-pretty-print.c
+++ b/gcc/gimple-pretty-print.c
@@ -542,7 +542,7 @@ pp_points_to_solution (pretty_printer *buffer, struct pt_solution *pt)
       pp_string (buffer, "{ ");
       EXECUTE_IF_SET_IN_BITMAP (pt->vars, 0, i, bi)
 	{
-	  tree var = referenced_var_lookup (i);
+	  tree var = referenced_var_lookup (cfun, i);
 	  if (var)
 	    {
 	      dump_generic_node (buffer, var, 0, dump_flags, false);
diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c
index 05a682b..f37c30f 100644
--- a/gcc/tree-dfa.c
+++ b/gcc/tree-dfa.c
@@ -488,12 +488,12 @@ find_referenced_vars_in (gimple stmt)
    variable.  */
 
 tree
-referenced_var_lookup (unsigned int uid)
+referenced_var_lookup (struct function *fn, unsigned int uid)
 {
   tree h;
   struct tree_decl_minimal in;
   in.uid = uid;
-  h = (tree) htab_find_with_hash (gimple_referenced_vars (cfun), &in, uid);
+  h = (tree) htab_find_with_hash (gimple_referenced_vars (fn), &in, uid);
   return h;
 }
 
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h
index 23eb3d8..538d6fe 100644
--- a/gcc/tree-flow-inline.h
+++ b/gcc/tree-flow-inline.h
@@ -103,7 +103,7 @@ next_htab_element (htab_iterator *hti)
 static inline tree
 referenced_var (unsigned int uid)
 {
-  tree var = referenced_var_lookup (uid);
+  tree var = referenced_var_lookup (cfun, uid);
   gcc_assert (var || uid == 0);
   return var;
 }
diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h
index e5642a0..e170037 100644
--- a/gcc/tree-flow.h
+++ b/gcc/tree-flow.h
@@ -319,7 +319,7 @@ typedef struct
        !end_referenced_vars_p (&(ITER)); \
        (VAR) = next_referenced_var (&(ITER)))
 
-extern tree referenced_var_lookup (unsigned int);
+extern tree referenced_var_lookup (struct function *, unsigned int);
 extern bool referenced_var_check_and_insert (tree);
 #define num_referenced_vars htab_elements (gimple_referenced_vars (cfun))
 
diff --git a/gcc/tree-into-ssa.c b/gcc/tree-into-ssa.c
index c425586..5f6ea19 100644
--- a/gcc/tree-into-ssa.c
+++ b/gcc/tree-into-ssa.c
@@ -1469,7 +1469,7 @@ dump_decl_set (FILE *file, bitmap set)
 
       EXECUTE_IF_SET_IN_BITMAP (set, 0, i, bi)
 	{
-	  tree var = referenced_var_lookup (i);
+	  tree var = referenced_var_lookup (cfun, i);
 	  if (var)
 	    print_generic_expr (file, var, 0);
 	  else
diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c
index cc8c83d..a787f71 100644
--- a/gcc/tree-ssa.c
+++ b/gcc/tree-ssa.c
@@ -1930,7 +1930,7 @@ maybe_optimize_var (tree var, bitmap addresses_taken, bitmap not_reg_needs)
 
   /* If the variable is not in the list of referenced vars then we
      do not need to touch it nor can we rename it.  */
-  if (!referenced_var_lookup (DECL_UID (var)))
+  if (!referenced_var_lookup (cfun, DECL_UID (var)))
     return false;
 
   if (TREE_ADDRESSABLE (var)