* loop.c (check_dbra_loop): Factor common test.

From-SVN: r66803

gcc/ChangeLog

+2003-05-14  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* loop.c (check_dbra_loop): Factor common test.
+
 2003-05-14  Ben Elliston  <bje@wasabisystems.com>
 
 	* doc/md.texi (Automaton pipeline description): Grammar fixes.
@@ -504,6 +508,7 @@ Mon May 12 11:32:53 CEST 2003  Jan Hubicka  <jh@suse.cz>
 	(s390_function_arg): Likewise.
 	(s390_va_arg): Likewise
 
+>>>>>>> 1.17806
 2003-05-11  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* coverage.h (coverage_counter_alloc): New function.

gcc/loop.c

@@ -8274,9 +8274,11 @@ check_dbra_loop (loop, insn_count)
 		    && REGNO (SET_DEST (set)) == bl->regno)
 		  /* An insn that sets the biv is okay.  */
 		  ;
-		else if ((p == prev_nonnote_insn (prev_nonnote_insn (loop_end))
-			  || p == prev_nonnote_insn (loop_end))
-			 && reg_mentioned_p (bivreg, PATTERN (p)))
+		else if (!reg_mentioned_p (bivreg, PATTERN (p)))
+		  /* An insn that doesn't mention the biv is okay.  */
+		  ;
+		else if (p == prev_nonnote_insn (prev_nonnote_insn (loop_end))
+			 || p == prev_nonnote_insn (loop_end))
 		  {
 		    /* If either of these insns uses the biv and sets a pseudo
 		       that has more than one usage, then the biv has uses
@@ -8290,7 +8292,7 @@ check_dbra_loop (loop, insn_count)
 			break;
 		      }
 		  }
-		else if (reg_mentioned_p (bivreg, PATTERN (p)))
+		else
 		  {
 		    no_use_except_counting = 0;
 		    break;