+Tue Jan 4 01:35:13 2000 J"orn Rennecke <amylaar@cygnus.co.uk>
+
+ * fold-const.c (make_range): Don't try to reverse an unbounded range.
+
Tue Jan 4 00:18:46 2000 Jeffrey A Law (law@cygnus.com)
* regclass.c (regclass): Properly compute loop_cost. Adjust
/* Fold a constant sub-tree into a single node for C-compiler
- Copyright (C) 1987, 88, 92-98, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1987, 88, 92-98, 1999, 2000 Free Software Foundation, Inc.
This file is part of GNU CC.
in_p = n_in_p, low = n_low, high = n_high;
- /* If the high bound is missing, reverse the range so it
- goes from zero to the low bound minus 1. */
- if (high == 0)
+ /* If the high bound is missing, but we
+ have a low bound, reverse the range so
+ it goes from zero to the low bound minus 1. */
+ if (high == 0 && low)
{
in_p = ! in_p;
high = range_binop (MINUS_EXPR, NULL_TREE, low, 0,