From 03fd22151856ff8e57ef209b2e01edc9f76999e0 Mon Sep 17 00:00:00 2001
From: Zdenek Dvorak <dvorakz@suse.cz>
Date: Fri, 20 Jan 2006 01:46:37 +0100
Subject: loop-iv.c: Include df.h and hashtab.h.

	* loop-iv.c: Include df.h and hashtab.h.
	(enum iv_grd_result): New enum.
	(DF_REF_IV, DF_REF_IV_SET): New macros.
	(struct biv_entry): New.
	(df, bivs): New global variables.
	(struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
	assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
	Removed.
	(clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
	iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
	analyzed_for_bivness_p, record_biv): New functions.
	(iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
	get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
	iv_analyze, biv_p, iv_analysis_done): Work with df representation of
	UD chains.
	(iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
	analysed.
	(iv_number_of_iterations): Use new interface to iv analysis.
	* loop-unroll.c: Do not include varray.h.
	(analyze_iv_to_split_insn): Use new interface to iv
	analysis.
	* loop-unswitch.c (may_unswitch_on): Ditto.
	* df.c (df_bitmaps_free): Only work for bbs for that structures are
	allocated.
	(df_bb_modify): Realloc tables to the new index.
	(df_find_use): New function.
	* df.h (df_find_use): Declare.
	* optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
	outmode.
	* cfgloop.h (struct rtx_iv): Remove analysed field.
	(iv_get_reaching_def): Removed.
	(iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
	* Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
	(loop-iv.o): Add df.h and hashtab.h dependency.
	* df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

From-SVN: r110005
---
 gcc/cfgloop.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'gcc/cfgloop.h')

diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h
index b5ac71c..3139ef7 100644
--- a/gcc/cfgloop.h
+++ b/gcc/cfgloop.h
@@ -352,9 +352,6 @@ struct rtx_iv
   /* The mode the variable iterates in.  */
   enum machine_mode mode;
 
-  /* Whether we have already filled the remaining fields.  */
-  unsigned analysed : 1;
-
   /* Whether the first iteration needs to be handled specially.  */
   unsigned first_special : 1;
 };
@@ -404,12 +401,14 @@ struct niter_desc
 };
 
 extern void iv_analysis_loop_init (struct loop *);
-extern rtx iv_get_reaching_def (rtx, rtx);
 extern bool iv_analyze (rtx, rtx, struct rtx_iv *);
+extern bool iv_analyze_result (rtx, rtx, struct rtx_iv *);
+extern bool iv_analyze_expr (rtx, rtx, enum machine_mode, struct rtx_iv *);
 extern rtx get_iv_value (struct rtx_iv *, rtx);
 extern bool biv_p (rtx, rtx);
 extern void find_simple_exit (struct loop *, struct niter_desc *);
 extern void iv_analysis_done (void);
+extern struct df *iv_current_loop_df (void);
 
 extern struct niter_desc *get_simple_loop_desc (struct loop *loop);
 extern void free_simple_loop_desc (struct loop *loop);
-- 
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