tree.h (union tree_ann_d): Don't declare.

* tree.h (union tree_ann_d): Don't declare.
	(tree_base): Remove ann field.
	(struct var_ann_d): Declare forward.
	(tree_result_decl, tree_parm_decl, tree_var_decl): Add ann field.
	(DECL_VAR_ANN_PTR): New macro.
	* tree-dfa.c (create_var_ann): Rewrite in terms of above macro,
	accept only VAR, PARM or RESULT decls.
	(create_tree_common_ann): Remove.
	(remove_referenced_var): Use DECL_VAR_ANN_PTR.
	* tree-eh.c (lookup_expr_eh_lp): Remove.
	* tree-flow-inline.h (var_ann, get_var_ann): Rewrite in terms of
	DECL_VAR_ANN_PTR.
	(ann_type, tree_common_ann, get_tree_common_ann): Remove.
	* tree-flow.h (enum tree_ann_type): Remove.
	(struct tree_ann_common_d): Remove.
	(struct var_ann_d): Remove common field.
	(union tree_ann_d): Remove.
	(tree_ann_t, tree_ann_common_t): Remove typedefs.
	(tree_common_ann, get_tree_common_ann, ann_type,
	create_tree_common_ann, lookup_expr_eh_lp): Don't declare.
	* tree-ssa.c (delete_tree_ssa): Use DECL_VAR_ANN_PTR.
	* tree.c (copy_node_stat): Use DECL_VAR_ANN_PTR.
	* builtins.c (expand_builtin_memcpy): Use
	currently_expanding_gimple_stmt instead of tree annotation.
	(expand_builtin_memset_args): Ditto.
	* cfgexpand.c (currently_expanding_gimple_stmt): Add global variable.
	(expand_call_stmt): Don't set tree annotation.
	(expand_gimple_basic_block): Set currently_expanding_gimple_stmt.
	* expr.c (expand_expr_real): Don't call lookup_expr_eh_lp.
	* gimple.h (currently_expanding_gimple_stmt): Declare.

From-SVN: r154502

gcc/ChangeLog

@@ -1,3 +1,36 @@
+2009-11-24  Michael Matz  <matz@suse.de>
+
+	* tree.h (union tree_ann_d): Don't declare.
+	(tree_base): Remove ann field.
+	(struct var_ann_d): Declare forward.
+	(tree_result_decl, tree_parm_decl, tree_var_decl): Add ann field.
+	(DECL_VAR_ANN_PTR): New macro.
+	* tree-dfa.c (create_var_ann): Rewrite in terms of above macro,
+	accept only VAR, PARM or RESULT decls.
+	(create_tree_common_ann): Remove.
+	(remove_referenced_var): Use DECL_VAR_ANN_PTR.
+	* tree-eh.c (lookup_expr_eh_lp): Remove.
+	* tree-flow-inline.h (var_ann, get_var_ann): Rewrite in terms of
+	DECL_VAR_ANN_PTR.
+	(ann_type, tree_common_ann, get_tree_common_ann): Remove.
+	* tree-flow.h (enum tree_ann_type): Remove.
+	(struct tree_ann_common_d): Remove.
+	(struct var_ann_d): Remove common field.
+	(union tree_ann_d): Remove.
+	(tree_ann_t, tree_ann_common_t): Remove typedefs.
+	(tree_common_ann, get_tree_common_ann, ann_type,
+	create_tree_common_ann, lookup_expr_eh_lp): Don't declare.
+	* tree-ssa.c (delete_tree_ssa): Use DECL_VAR_ANN_PTR.
+	* tree.c (copy_node_stat): Use DECL_VAR_ANN_PTR.
+	* builtins.c (expand_builtin_memcpy): Use
+	currently_expanding_gimple_stmt instead of tree annotation.
+	(expand_builtin_memset_args): Ditto.
+	* cfgexpand.c (currently_expanding_gimple_stmt): Add global variable.
+	(expand_call_stmt): Don't set tree annotation.
+	(expand_gimple_basic_block): Set currently_expanding_gimple_stmt.
+	* expr.c (expand_expr_real): Don't call lookup_expr_eh_lp.
+	* gimple.h (currently_expanding_gimple_stmt): Declare.
+
 2009-11-24  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* dwarf2out.c (add_location_or_const_value_attribute): Remove
@@ -11,7 +44,7 @@
 
 2009-11-24  Basile Starynkevitch  <basile@starynkevitch.net>
 
-        * Makefile.in (PLUGIN_HEADERS): Added files: cppdefault.h flags.h
+	* Makefile.in (PLUGIN_HEADERS): Added files: cppdefault.h flags.h
 	$(MD5_H) params.def params.h prefix.h tree-inline.h.
 
 2009-11-24  Paul Brook  <paul@codesourcery.com>
@@ -30,14 +63,14 @@
 
 	* cfgrtl.c (commit_one_edge_insertion): Remove set but not used
 	local variable bb_note.
-        * dominance.c (get_dominated_by): Likewise local var n.
+	* dominance.c (get_dominated_by): Likewise local var n.
-        (output_file_names): Likewise local var idx.
+	(output_file_names): Likewise local var idx.
-        (add_location_or_const_value_attribute): Likewise local var status.
+	(add_location_or_const_value_attribute): Likewise local var status.
-        * dwarf2out.c (gen_variable_die): Likewise local var field.
+	* dwarf2out.c (gen_variable_die): Likewise local var field.
-        * emit-rtl.c (no_line_numbers): Remove.
+	* emit-rtl.c (no_line_numbers): Remove.
 	(init_emit_once): Remove line_numbers parameter.
-        * rtl.h (init_emit_once): Adjust prototype.
+	* rtl.h (init_emit_once): Adjust prototype.
-        * toplev.c (backend_init): Adjust init_emit_once call.
+	* toplev.c (backend_init): Adjust init_emit_once call.
 
 2009-11-24  Richard Guenther  <rguenther@suse.de>
 

gcc/builtins.c

@@ -3259,7 +3259,6 @@ expand_builtin_memcpy (tree exp, rtx target)
       rtx dest_mem, src_mem, dest_addr, len_rtx;
       HOST_WIDE_INT expected_size = -1;
       unsigned int expected_align = 0;
-      tree_ann_common_t ann;
 
       /* If DEST is not a pointer type, call the normal function.  */
       if (dest_align == 0)
@@ -3270,9 +3269,9 @@ expand_builtin_memcpy (tree exp, rtx target)
       if (src_align == 0)
 	return NULL_RTX;
  
-      ann = tree_common_ann (exp);
+      if (currently_expanding_gimple_stmt)
-      if (ann)
+        stringop_block_profile (currently_expanding_gimple_stmt,
-        stringop_block_profile (ann->stmt, &expected_align, &expected_size);
+				&expected_align, &expected_size);
 
       if (expected_align < dest_align)
 	expected_align = dest_align;
@@ -3737,7 +3736,6 @@ expand_builtin_memset_args (tree dest, tree val, tree len,
   rtx dest_mem, dest_addr, len_rtx;
   HOST_WIDE_INT expected_size = -1;
   unsigned int expected_align = 0;
-  tree_ann_common_t ann;
 
   dest_align = get_pointer_alignment (dest, BIGGEST_ALIGNMENT);
 
@@ -3745,9 +3743,9 @@ expand_builtin_memset_args (tree dest, tree val, tree len,
   if (dest_align == 0)
     return NULL_RTX;
 
-  ann = tree_common_ann (orig_exp);
+  if (currently_expanding_gimple_stmt)
-  if (ann)
+    stringop_block_profile (currently_expanding_gimple_stmt,
-    stringop_block_profile (ann->stmt, &expected_align, &expected_size);
+			    &expected_align, &expected_size);
 
   if (expected_align < dest_align)
     expected_align = dest_align;

gcc/cfgexpand.c

@@ -49,6 +49,10 @@ along with GCC; see the file COPYING3.  If not see
    into RTL.  */
 struct ssaexpand SA;
 
+/* This variable holds the currently expanded gimple statement for purposes
+   of comminucating the profile info to the builtin expanders.  */
+gimple currently_expanding_gimple_stmt;
+
 /* Return an expression tree corresponding to the RHS of GIMPLE
    statement STMT.  */
 
@@ -1756,7 +1760,6 @@ expand_call_stmt (gimple stmt)
 {
   tree exp;
   tree lhs = gimple_call_lhs (stmt);
-  tree fndecl = gimple_call_fndecl (stmt);
   size_t i;
 
   exp = build_vl_exp (CALL_EXPR, gimple_call_num_args (stmt) + 3);
@@ -1782,15 +1785,6 @@ expand_call_stmt (gimple stmt)
   SET_EXPR_LOCATION (exp, gimple_location (stmt));
   TREE_BLOCK (exp) = gimple_block (stmt);
 
-  /* Record the original call statement, as it may be used
-     to retrieve profile information during expansion.  */
-
-  if (fndecl && DECL_BUILT_IN (fndecl))
-    {
-      tree_ann_common_t ann = get_tree_common_ann (exp);
-      ann->stmt = stmt;
-    }
-
   if (lhs)
     expand_assignment (lhs, exp, false);
   else
@@ -3106,6 +3100,7 @@ expand_gimple_basic_block (basic_block bb)
       basic_block new_bb;
 
       stmt = gsi_stmt (gsi);
+      currently_expanding_gimple_stmt = stmt;
 
       /* Expand this statement, then evaluate the resulting RTL and
 	 fixup the CFG accordingly.  */
@@ -3203,6 +3198,8 @@ expand_gimple_basic_block (basic_block bb)
 	}
     }
 
+  currently_expanding_gimple_stmt = NULL;
+
   /* Expand implicit goto and convert goto_locus.  */
   FOR_EACH_EDGE (e, ei, bb->succs)
     {

gcc/expr.c

@@ -7157,8 +7157,7 @@ rtx
 expand_expr_real (tree exp, rtx target, enum machine_mode tmode,
 		  enum expand_modifier modifier, rtx *alt_rtl)
 {
-  int lp_nr = 0;
+  rtx ret;
-  rtx ret, last = NULL;
 
   /* Handle ERROR_MARK before anybody tries to access its type.  */
   if (TREE_CODE (exp) == ERROR_MARK
@@ -7168,13 +7167,6 @@ expand_expr_real (tree exp, rtx target, enum machine_mode tmode,
       return ret ? ret : const0_rtx;
     }
 
-  if (flag_non_call_exceptions)
-    {
-      lp_nr = lookup_expr_eh_lp (exp);
-      if (lp_nr)
-	last = get_last_insn ();
-    }
-
   /* If this is an expression of some kind and it has an associated line
      number, then emit the line number before expanding the expression.
 
@@ -7201,25 +7193,6 @@ expand_expr_real (tree exp, rtx target, enum machine_mode tmode,
       ret = expand_expr_real_1 (exp, target, tmode, modifier, alt_rtl);
     }
 
-  /* If using non-call exceptions, mark all insns that may trap.
-     expand_call() will mark CALL_INSNs before we get to this code,
-     but it doesn't handle libcalls, and these may trap.  */
-  if (lp_nr)
-    {
-      rtx insn;
-      for (insn = next_real_insn (last); insn;
-	   insn = next_real_insn (insn))
-	{
-	  if (! find_reg_note (insn, REG_EH_REGION, NULL_RTX)
-	      /* If we want exceptions for non-call insns, any
-		 may_trap_p instruction may throw.  */
-	      && GET_CODE (PATTERN (insn)) != CLOBBER
-	      && GET_CODE (PATTERN (insn)) != USE
-	      && insn_could_throw_p (insn))
-	    make_reg_eh_region_note (insn, 0, lp_nr);
-	}
-    }
-
   return ret;
 }
 

gcc/gimple.h

@@ -769,6 +769,10 @@ extern size_t const gimple_ops_offset_[];
 /* Map GIMPLE codes to GSS codes.  */
 extern enum gimple_statement_structure_enum const gss_for_code_[];
 
+/* This variable holds the currently expanded gimple statement for purposes
+   of comminucating the profile info to the builtin expanders.  */
+extern gimple currently_expanding_gimple_stmt;
+
 gimple gimple_build_return (tree);
 
 gimple gimple_build_assign_stat (tree, tree MEM_STAT_DECL);

gcc/tree-dfa.c

@@ -133,12 +133,12 @@ create_var_ann (tree t)
   var_ann_t ann;
 
   gcc_assert (t);
-  gcc_assert (DECL_P (t));
+  gcc_assert (TREE_CODE (t) == VAR_DECL
-  gcc_assert (!t->base.ann || t->base.ann->common.type == VAR_ANN);
+	      || TREE_CODE (t) == PARM_DECL
+	      || TREE_CODE (t) == RESULT_DECL);
 
   ann = GGC_CNEW (struct var_ann_d);
-  ann->common.type = VAR_ANN;
+  *DECL_VAR_ANN_PTR (t) = ann;
-  t->base.ann = (tree_ann_t) ann;
 
   return ann;
 }
@@ -188,24 +188,6 @@ renumber_gimple_stmt_uids_in_blocks (basic_block *blocks, int n_blocks)
     }
 }
 
-/* Create a new annotation for a tree T.  */
-
-tree_ann_common_t
-create_tree_common_ann (tree t)
-{
-  tree_ann_common_t ann;
-
-  gcc_assert (t);
-  gcc_assert (!t->base.ann || t->base.ann->common.type == TREE_ANN_COMMON);
-
-  ann = GGC_CNEW (struct tree_ann_common_d);
-
-  ann->type = TREE_ANN_COMMON;
-  t->base.ann = (tree_ann_t) ann;
-
-  return ann;
-}
-
 /* Build a temporary.  Make sure and register it to be renamed.  */
 
 tree
@@ -654,7 +636,7 @@ remove_referenced_var (tree var)
       && (v_ann = var_ann (var)))
     {
       ggc_free (v_ann);
-      var->base.ann = NULL;
+      *DECL_VAR_ANN_PTR (var) = NULL;
     }
   gcc_assert (DECL_P (var));
   in.uid = uid;

gcc/tree-eh.c

@@ -203,21 +203,6 @@ lookup_stmt_eh_lp (gimple t)
   return lookup_stmt_eh_lp_fn (cfun, t);
 }
 
-/* Likewise, but reference a tree expression instead.  */
-
-int
-lookup_expr_eh_lp (tree t)
-{
-  if (cfun && cfun->eh->throw_stmt_table && t && EXPR_P (t))
-    {
-      tree_ann_common_t ann = tree_common_ann (t);
-      if (ann)
-	return ann->lp_nr;
-    }
-  return 0;
-}
-
-
 /* First pass of EH node decomposition.  Build up a tree of GIMPLE_TRY_FINALLY
    nodes and LABEL_DECL nodes.  We will use this during the second phase to
    determine if a goto leaves the body of a TRY_FINALLY_EXPR node.  */

gcc/tree-flow-inline.h

@@ -152,15 +152,8 @@ fill_referenced_var_vec (VEC (tree, heap) **vec)
 static inline var_ann_t
 var_ann (const_tree t)
 {
-  var_ann_t ann;
+  const var_ann_t *p = DECL_VAR_ANN_PTR (t);
-
+  return p ? *p : NULL;
-  if (!t->base.ann)
-    return NULL;
-  ann = (var_ann_t) t->base.ann;
-
-  gcc_assert (ann->common.type == VAR_ANN);
-
-  return ann;
 }
 
 /* Return the variable annotation for T, which must be a _DECL node.
@@ -168,8 +161,9 @@ var_ann (const_tree t)
 static inline var_ann_t
 get_var_ann (tree var)
 {
-  var_ann_t ann = var_ann (var);
+  var_ann_t *p = DECL_VAR_ANN_PTR (var);
-  return (ann) ? ann : create_var_ann (var);
+  gcc_assert (p);
+  return *p ? *p : create_var_ann (var);
 }
 
 /* Get the number of the next statement uid to be allocated.  */
@@ -193,13 +187,6 @@ inc_gimple_stmt_max_uid (struct function *fn)
   return fn->last_stmt_uid++;
 }
 
-/* Return the annotation type for annotation ANN.  */
-static inline enum tree_ann_type
-ann_type (tree_ann_t ann)
-{
-  return ann->common.type;
-}
-
 /* Return the line number for EXPR, or return -1 if we have no line
    number information for it.  */
 static inline int
@@ -678,26 +665,6 @@ is_call_used (const_tree var)
 	      && pt_solution_includes (&cfun->gimple_df->callused, var)));
 }
 
-/* Return the common annotation for T.  Return NULL if the annotation
-   doesn't already exist.  */
-static inline tree_ann_common_t
-tree_common_ann (const_tree t)
-{
-  /* Watch out static variables with unshared annotations.  */
-  if (DECL_P (t) && TREE_CODE (t) == VAR_DECL)
-    return &var_ann (t)->common;
-  return &t->base.ann->common;
-}
-
-/* Return a common annotation for T.  Create the constant annotation if it
-   doesn't exist.  */
-static inline tree_ann_common_t
-get_tree_common_ann (tree t)
-{
-  tree_ann_common_t ann = tree_common_ann (t);
-  return (ann) ? ann : create_tree_common_ann (t);
-}
-
 /*  -----------------------------------------------------------------------  */
 
 /* The following set of routines are used to iterator over various type of

gcc/tree-flow.h

@@ -125,24 +125,6 @@ struct GTY(()) ptr_info_def
 };
 
 
-/*---------------------------------------------------------------------------
-		   Tree annotations stored in tree_base.ann
----------------------------------------------------------------------------*/
-enum tree_ann_type { TREE_ANN_COMMON, VAR_ANN, FUNCTION_ANN };
-
-struct GTY(()) tree_ann_common_d {
-  /* Annotation type.  */
-  enum tree_ann_type type;
-
-  /* Record EH landing pad number into a statement tree created
-     during RTL expansion (see gimple_to_tree).  */
-  int lp_nr;
-
-  /* Pointer to original GIMPLE statement.  Used during RTL expansion
-     (see gimple_to_tree).  */
-  gimple stmt;
-};
-
 /* It is advantageous to avoid things like life analysis for variables which
    do not need PHI nodes.  This enum describes whether or not a particular
    variable may need a PHI node.  */
@@ -192,8 +174,6 @@ enum noalias_state {
 
 
 struct GTY(()) var_ann_d {
-  struct tree_ann_common_d common;
-
   /* Used when building base variable structures in a var_map.  */
   unsigned base_var_processed : 1;
 
@@ -318,20 +298,10 @@ typedef struct immediate_use_iterator_d
 
 
 
-union GTY((desc ("ann_type ((tree_ann_t)&%h)"))) tree_ann_d {
-  struct tree_ann_common_d GTY((tag ("TREE_ANN_COMMON"))) common;
-  struct var_ann_d GTY((tag ("VAR_ANN"))) vdecl;
-};
-
-typedef union tree_ann_d *tree_ann_t;
 typedef struct var_ann_d *var_ann_t;
-typedef struct tree_ann_common_d *tree_ann_common_t;
 
-static inline tree_ann_common_t tree_common_ann (const_tree);
-static inline tree_ann_common_t get_tree_common_ann (tree);
 static inline var_ann_t var_ann (const_tree);
 static inline var_ann_t get_var_ann (tree);
-static inline enum tree_ann_type ann_type (tree_ann_t);
 static inline void update_stmt (gimple);
 static inline int get_lineno (const_gimple);
 
@@ -556,7 +526,6 @@ extern const char *op_symbol_code (enum tree_code);
 extern var_ann_t create_var_ann (tree);
 extern void renumber_gimple_stmt_uids (void);
 extern void renumber_gimple_stmt_uids_in_blocks (basic_block *, int);
-extern tree_ann_common_t create_tree_common_ann (tree);
 extern void dump_dfa_stats (FILE *);
 extern void debug_dfa_stats (void);
 extern void debug_referenced_vars (void);
@@ -856,7 +825,6 @@ extern void add_stmt_to_eh_lp (gimple, int);
 extern bool remove_stmt_from_eh_lp (gimple);
 extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple);
 extern int lookup_stmt_eh_lp_fn (struct function *, gimple);
-extern int lookup_expr_eh_lp (tree);
 extern int lookup_stmt_eh_lp (gimple);
 extern bool maybe_clean_eh_stmt_fn (struct function *, gimple);
 extern bool maybe_clean_eh_stmt (gimple);

gcc/tree-ssa.c

@@ -1138,9 +1138,11 @@ delete_tree_ssa (void)
     {
       if (is_global_var (var))
 	continue;
-      if (var->base.ann)
+      if (var_ann (var))
-        ggc_free (var->base.ann);
+	{
-      var->base.ann = NULL;
+	  ggc_free (var_ann (var));
+	  *DECL_VAR_ANN_PTR (var) = NULL;
+	}
     }
   htab_delete (gimple_referenced_vars (cfun));
   cfun->gimple_df->referenced_vars = NULL;

gcc/tree.c

@@ -955,7 +955,8 @@ copy_node_stat (tree node MEM_STAT_DECL)
   TREE_CHAIN (t) = 0;
   TREE_ASM_WRITTEN (t) = 0;
   TREE_VISITED (t) = 0;
-  t->base.ann = 0;
+  if (code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
+    *DECL_VAR_ANN_PTR (t) = 0;
 
   if (TREE_CODE_CLASS (code) == tcc_declaration)
     {

gcc/tree.h

@@ -356,7 +356,6 @@ enum omp_clause_code
 
    See the accessor macros, defined below, for documentation of the
    fields.  */
-union tree_ann_d;
 
 struct GTY(()) tree_base {
   ENUM_BITFIELD(tree_code) code : 16;
@@ -398,8 +397,6 @@ struct GTY(()) tree_base {
      in tree_base instead of tree_type is to save space.  The size of the
      field must be large enough to hold addr_space_t values.  */
   unsigned address_space : 8;
-
-  union tree_ann_d *ann;
 };
 
 struct GTY(()) tree_common {
@@ -2854,8 +2851,10 @@ struct GTY(()) tree_label_decl {
   int eh_landing_pad_nr;
 };
 
+struct var_ann_d;
 struct GTY(()) tree_result_decl {
   struct tree_decl_with_rtl common;
+  struct var_ann_d *ann;
 };
 
 struct GTY(()) tree_const_decl {
@@ -2873,6 +2872,7 @@ struct GTY(()) tree_const_decl {
 struct GTY(()) tree_parm_decl {
   struct tree_decl_with_rtl common;
   rtx incoming_rtl;
+  struct var_ann_d *ann;
 };
 
 
@@ -3082,8 +3082,15 @@ extern void decl_fini_priority_insert (tree, priority_type);
 #define DECL_THREAD_LOCAL_P(NODE) \
   (VAR_DECL_CHECK (NODE)->decl_with_vis.tls_model >= TLS_MODEL_REAL)
 
+#define DECL_VAR_ANN_PTR(NODE) \
+  (TREE_CODE (NODE) == VAR_DECL ? &(NODE)->var_decl.ann \
+   : TREE_CODE (NODE) == PARM_DECL ? &(NODE)->parm_decl.ann \
+   : TREE_CODE (NODE) == RESULT_DECL ? &(NODE)->result_decl.ann \
+   : NULL)
+
 struct GTY(()) tree_var_decl {
   struct tree_decl_with_vis common;
+  struct var_ann_d *ann;
 };