df.h (enum df_ref_class): Remove DF_REF_EXTRACT.

2010-09-04  Paolo Bonzini  <bonzini@gnu.org>

	* df.h (enum df_ref_class): Remove DF_REF_EXTRACT.
	(struct df_extract_ref): Remove.
	(union df_ref_d): Remove extract_ref member.
	(df_ref_create): Remove last three arguments.
	(DF_REF_LOC): Remove DF_REF_EXTRACT case.
	* df-scan.c (df_ref_record): Remove last three arguments, do not
	pass them to df_ref_create_structure.
	(df_uses_record): Remove first and last three arguments.  Replace
	first argument with DF_REF_REGULAR, adjust calls to remove the
	width, offset and mode.  Always call recursively on the second
	and third argument of ZERO_EXTRACT and SIGN_EXTRACT.
	(df_ref_create_structure): Remove first argument.
	(struct df_scan_problem_data): Remove ref_extract_pool.
	(df_scan_free_internal): Do not free it.
	(df_scan_alloc): Do not allocate it.
	(df_ref_create): Remove last three arguments, do not pass them to
	df_ref_create_structure.
	(df_free_ref): Remove DF_REF_EXTRACT case.
	(df_notes_rescan): Adjust call to df_uses_record.
	(df_ref_equal_p, df_ref_compare, df_ref_create_structure):
	Remove DF_REF_EXTRACT case.
	(df_def_record_1): Do not special case class for a ZERO_EXTRACT lhs.
	Adjust calls to df_ref_record, using DF_REF_REGULAR for all REG
	and SUBREG definitions.
	(df_get_conditional_uses): Remove references to width/offset/mode,
	adjust call to df_ref_create_structure.
	(df_get_call_refs, df_insn_refs_collect, df_bb_refs_collect,
	df_entry_block_defs_collect, df_exit_block_uses_collect): Adjust
	calls to df_uses_record and df_ref_record.
	* fwprop.c (update_df): Remove references to width/offset/mode,
	adjust call to df_ref_create.

From-SVN: r163854

1 files changed, 1 insertions, 12 deletions

diff --git a/gcc/fwprop.c b/gcc/fwprop.c
index a6f52cd..006dca3c 100644
--- a/gcc/fwprop.c
+++ b/gcc/fwprop.c
@@ -908,28 +908,17 @@ update_df (rtx insn, rtx *loc, df_ref *use_rec, enum df_ref_type type,
     {
       df_ref use = *use_rec;
       df_ref orig_use = use, new_use;
-      int width = -1;
-      int offset = -1;
-      enum machine_mode mode = VOIDmode;
       rtx *new_loc = find_occurrence (loc, DF_REF_REG (orig_use));
       use_rec++;
 
       if (!new_loc)
 	continue;
 
-      if (DF_REF_FLAGS_IS_SET (orig_use, DF_REF_SIGN_EXTRACT | DF_REF_ZERO_EXTRACT))
-	{
-	  width = DF_REF_EXTRACT_WIDTH (orig_use);
-	  offset = DF_REF_EXTRACT_OFFSET (orig_use);
-	  mode = DF_REF_EXTRACT_MODE (orig_use);
-	}
-
       /* Add a new insn use.  Use the original type, because it says if the
          use was within a MEM.  */
       new_use = df_ref_create (DF_REF_REG (orig_use), new_loc,
 			       insn, BLOCK_FOR_INSN (insn),
-			       type, DF_REF_FLAGS (orig_use) | new_flags,
-			       width, offset, mode);
+			       type, DF_REF_FLAGS (orig_use) | new_flags);
 
       /* Set up the use-def chain.  */
       gcc_assert (DF_REF_ID (new_use) == (int) VEC_length (df_ref, use_def_ref));