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

1 files changed, 1 insertions, 28 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index e62b530..6681003 100644
--- a/gcc/expr.c
+++ b/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, last = NULL;
+  rtx ret;
 
   /* 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;
 }