[PATCH] avail_exprs is no longer file scoped

	* tree-ssa-dom.c (avail_exprs): No longer file scoped.  Bury
	it into the avail_exprs_stack class.
	(pass_dominator::execute): Corresponding changes to declaration
	and initialization of avail_exprs.  Pass avail_exprs to
	dump_dominator_optimization_stats.
	(record_cond): Extract avail_exprs from avail_exprs_stack.
	(lookup_avail_expr): Similarly.
	(htab_staticstics): Remove unnecessary prototype.  Move to earlier
	position in file.
	(dump_dominator_optimization_stats): Make static and prototype.
	Add argument for the hash table to dump.
	(debug_dominator_optimization_stats): Remove.
	* tree-ssa-dom.h (dump_dominator_optimization_stats): Remove
	prototype.
	(debug_dominator_optimization_stats): Similarly.
	* tree-ssa-scopedtables.h (class avail_exprs_stack): Add missing
	"void" in prototype for pop_to_marker method.  Add accessor method
	for the underlying avail_exprs table.

	* tree-ssa-threadedge.c: Remove trailing whitespace.

From-SVN: r227921

1 files changed, 6 insertions, 1 deletions

diff --git a/gcc/tree-ssa-scopedtables.h b/gcc/tree-ssa-scopedtables.h
index f37230e..152df51 100644
--- a/gcc/tree-ssa-scopedtables.h
+++ b/gcc/tree-ssa-scopedtables.h
@@ -122,11 +122,16 @@ class avail_exprs_stack
 
   /* Restore the AVAIL_EXPRs table to its state when the last marker
      was pushed.  */
-  void pop_to_marker ();
+  void pop_to_marker (void);
 
   /* Record a single available expression that can be unwound.  */
   void record_expr (expr_hash_elt_t, expr_hash_elt_t, char);
 
+  /* Get the underlying hash table.  Would this be better as
+     class inheritance?  */
+  hash_table<expr_elt_hasher> *avail_exprs (void)
+    { return m_avail_exprs; }
+
  private:
   vec<std::pair<expr_hash_elt_t, expr_hash_elt_t> > m_stack;
   hash_table<expr_elt_hasher> *m_avail_exprs;