gcc/

	* df.h (df_mw_hardreg): Remove "loc" field.
	* df-scan.c (df_ref_record): Don't set it.  Remove redundant
	local variable.
	* df-problems.c (df_whole_mw_reg_unused_p): New function,
	split out from df_set_unused_notes_for_mw.  Return false for
	partial references.  Assert that mw_reg is a REG when returning true.
	(df_set_unused_notes_for_mw): Use it.  Use mw_reg instead of *loc.
	(df_whole_mw_reg_dead_p): New function, split out from
	df_set_dead_notes_for_mw.  Return false for partial references.
	Assert that mw_reg is a REG when returning true.
	(df_set_dead_notes_for_mw): Use it.  Use mw_reg instead of *loc.
	Remove redundant bitmap check.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126970 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 1 insertions, 3 deletions

diff --git a/gcc/df-scan.c b/gcc/df-scan.c
index acef3e4cb1f..6e622f8460d 100644
--- a/gcc/df-scan.c
+++ b/gcc/df-scan.c
@@ -2625,7 +2625,6 @@ df_ref_record (struct df_collection_rec *collection_rec,
 	       enum df_ref_type ref_type, 
 	       enum df_ref_flags ref_flags) 
 {
-  rtx oldreg = reg;
   unsigned int regno;
 
   gcc_assert (REG_P (reg) || GET_CODE (reg) == SUBREG);
@@ -2656,7 +2655,7 @@ df_ref_record (struct df_collection_rec *collection_rec,
 	{
 	  /* Sets to a subreg of a multiword register are partial. 
 	     Sets to a non-subreg of a multiword register are not.  */
-	  if (GET_CODE (oldreg) == SUBREG)
+	  if (GET_CODE (reg) == SUBREG)
 	    ref_flags |= DF_REF_PARTIAL;
 	  ref_flags |= DF_REF_MW_HARDREG;
 
@@ -2664,7 +2663,6 @@ df_ref_record (struct df_collection_rec *collection_rec,
 	  hardreg->type = ref_type;
 	  hardreg->flags = ref_flags;
 	  hardreg->mw_reg = reg;
-	  hardreg->loc = loc;
 	  hardreg->start_regno = regno;
 	  hardreg->end_regno = endregno - 1;
 	  hardreg->mw_order = df->ref_order++;