* emit-rtl.c (active_insn_p): Revert last change.

From-SVN: r57590

gcc/ChangeLog

+2002-09-27  Richard Henderson  <rth@redhat.com>
+
+	* emit-rtl.c (active_insn_p): Revert last change.
+
 2002-09-27  Jakub Jelinek  <jakub@redhat.com>
 
 	* doc/extend.texi (tls_model): Document.

gcc/emit-rtl.c

@@ -3021,34 +3021,11 @@ int
 active_insn_p (insn)
      rtx insn;
 {
-  if (GET_CODE (insn) == CALL_INSN || GET_CODE (insn) == JUMP_INSN)
-    return true;
-  if (GET_CODE (insn) == INSN)
-    {
-      if (reload_completed)
-	{
-	  rtx pat = PATTERN (insn);
-
-	  /* After reload, remaining USE insns are noops.  */
-	  if (GET_CODE (pat) == USE)
-	    return false;
-
-	  if (GET_CODE (pat) == CLOBBER)
-	    {
-	      /* ??? Don't skip past the clobber of the return register.
-		 If we eliminate it, we risk a variety of life analysis
-		 problems on broken code.  */
-	      if (GET_CODE (XEXP (pat, 0)) == REG
-		  && REG_FUNCTION_VALUE_P (XEXP (pat, 0)))
-		return true;
-
-	      /* Otherwise, clobbers don't do anything either.  */
-	      return false;
-	    }
-	}
-      return true;
-    }
-  return false;
+  return (GET_CODE (insn) == CALL_INSN || GET_CODE (insn) == JUMP_INSN
+	  || (GET_CODE (insn) == INSN
+	      && (! reload_completed
+		  || (GET_CODE (PATTERN (insn)) != USE
+		      && GET_CODE (PATTERN (insn)) != CLOBBER))));
 }
 
 rtx