jump.c (follow_jumps): Do not check for loop notes.

	* jump.c (follow_jumps): Do not check for loop notes.  Move check for
	flag_test_coverage out of loop.

From-SVN: r111996

gcc/ChangeLog

 2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
 
+	* jump.c (follow_jumps): Do not check for loop notes.  Move check for
+	flag_test_coverage out of loop.
+
+2006-03-13  Zdenek Dvorak <dvorakz@suse.cz>
+
 	* final.c (shorten_branches): Remove outdated comment, and turn
 	the if branch that guards it to continue.
 

gcc/jump.c

@@ -1041,8 +1041,7 @@ sets_cc0_p (rtx x)
    If the chain loops or we can't find end, return LABEL,
    since that tells caller to avoid changing the insn.
 
-   If RELOAD_COMPLETED is 0, we do not chain across a NOTE_INSN_LOOP_BEG or
-   a USE or CLOBBER.  */
+   If RELOAD_COMPLETED is 0, we do not chain across a USE or CLOBBER.  */
 
 rtx
 follow_jumps (rtx label)
@@ -1063,19 +1062,15 @@ follow_jumps (rtx label)
 	&& BARRIER_P (next));
        depth++)
     {
-      /* Don't chain through the insn that jumps into a loop
-	 from outside the loop,
-	 since that would create multiple loop entry jumps
-	 and prevent loop optimization.  */
       rtx tem;
-      if (!reload_completed)
-	for (tem = value; tem != insn; tem = NEXT_INSN (tem))
-	  if (NOTE_P (tem)
-	      && (NOTE_LINE_NUMBER (tem) == NOTE_INSN_LOOP_BEG
+      if (!reload_completed && flag_test_coverage)
+	{
 	  /* ??? Optional.  Disables some optimizations, but makes
 	     gcov output more accurate with -O.  */
-		  || (flag_test_coverage && NOTE_LINE_NUMBER (tem) > 0)))
+	  for (tem = value; tem != insn; tem = NEXT_INSN (tem))
+	    if (NOTE_P (tem) && NOTE_LINE_NUMBER (tem) > 0)
 	      return value;
+	}
 
       /* If we have found a cycle, make the insn jump to itself.  */
       if (JUMP_LABEL (insn) == label)