comparison loops.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25729
138bc75d-0d04-0410-961f-
82ee72b054a4
+Fri Mar 12 20:45:30 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
+
+ * unroll.c (loop_iterations): Don't return a final value for EQ
+ comparison loops.
+
Fri Mar 12 12:35:01 1999 Jim Wilson <wilson@cygnus.com>
* reload1.c (calculate_needs_all_insns): When ignore equivalence
loop_info->initial_equiv_value = initial_value;
loop_info->final_equiv_value = final_value;
+ /* For EQ comparison loops, we don't have a valid final value.
+ Check this now so that we won't leave an invalid value if we
+ return early for any other reason. */
+ if (comparison_code == EQ)
+ loop_info->final_equiv_value = loop_info->final_value = 0;
+
if (increment == 0)
{
if (loop_dump_stream)