tree-ssa-loop-unswitch.c: Include tree-inline.h.

	* tree-ssa-loop-unswitch.c: Include tree-inline.h.
	(tree_unswitch_single_loop): Pass eni_size_weights to
	tree_num_loop_insns.
	* tree-ssa-loop-manip.c: Include tree-inline.h.
	(can_unroll_loop_p): Pass eni_size_weights to
	tree_num_loop_insns.
	* tree-ssa-loop-ch.c (should_duplicate_loop_header_p):
	Pass eni_size_weights to estimate_num_insns.
	* tree.h (init_inline_once): Export.
	* toplev.c (backend_init): Call init_inline_once.
	* cgraphunit.c (cgraph_process_new_functions,
	cgraph_analyze_function): Pass eni_inlining_weights to
	estimate_num_insns.
	* ipa-inline.c (compute_inline_parameters): Ditto.
	* tree-ssa-loop-ivcanon.c (tree_num_loop_insns): Pass weights
	to estimate_num_insns.
	(try_unroll_loop_completely): Pass eni_size_weights to
	tree_num_loop_insns.
	* tree-eh.c (decide_copy_try_finally): Pass eni_size_weights
	ot estimate_num_insns.
	* tree-ssa-loop-prefetch.c: Include tree-inline.h.
	(loop_prefetch_arrays): Pass eni_time_weights to tree_num_loop_insns.
	* tree-inline.c (eni_inlining_weights, eni_size_weights,
	eni_time_weights): New variables.
	(init_inline_once): Initialize them.
	(struct eni_data): Mew.
	(estimate_num_insns_1, estimate_num_insns): Use weights.
	* tree-inline.h (struct eni_weights_d): New.
	(eni_inlining_weights, eni_size_weights, eni_time_weights): Declare.
	(estimate_num_insns): Declaration changed.
	* cfgloop.h (tree_num_loop_insns): Declaration changed.
	* Makefile.in (tree-ssa-loop-unswitch.o, tree-ssa-loop-prefetch.o,
	tree-ssa-loop-manip.o): Add TREE_INLINE_H dependency.

	* gcc.dg/tree-ssa/loop-23.c: New test.

From-SVN: r121260

1 files changed, 32 insertions, 1 deletions

diff --git a/gcc/tree-inline.h b/gcc/tree-inline.h
index 102d590..998494e 100644
--- a/gcc/tree-inline.h
+++ b/gcc/tree-inline.h
@@ -93,6 +93,37 @@ typedef struct copy_body_data
   struct pointer_set_t *statements_to_fold;
 } copy_body_data;
 
+/* Weights of constructions for estimate_num_insns.  */
+
+typedef struct eni_weights_d
+{
+  /* Cost per call.  */
+  unsigned call_cost;
+
+  /* Cost of "expensive" div and mod operations.  */
+  unsigned div_mod_cost;
+
+  /* Cost of switch statement.  */
+  unsigned switch_cost;
+
+  /* Cost for omp construct.  */
+  unsigned omp_cost;
+} eni_weights;
+
+/* Weights that estimate_num_insns uses for heuristics in inlining.  */
+
+extern eni_weights eni_inlining_weights;
+
+/* Weights that estimate_num_insns uses to estimate the size of the
+   produced code.  */
+
+extern eni_weights eni_size_weights;
+
+/* Weights that estimate_num_insns uses to estimate the time necessary
+   to execute the produced code.  */
+
+extern eni_weights eni_time_weights;
+
 /* Function prototypes.  */
 
 extern tree copy_body_r (tree *, int *, void *);
@@ -106,7 +137,7 @@ void save_body (tree, tree *, tree *);
 int estimate_move_cost (tree type);
 void push_cfun (struct function *new_cfun);
 void pop_cfun (void);
-int estimate_num_insns (tree expr);
+int estimate_num_insns (tree expr, eni_weights *);
 bool tree_versionable_function_p (tree);
 void tree_function_versioning (tree, tree, varray_type, bool);