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authorJeff Law <law@gcc.gnu.org>1998-05-05 17:18:02 -0600
committerJeff Law <law@gcc.gnu.org>1998-05-05 17:18:02 -0600
commitf5963e617044e79f7658c82ebc9acdccdc56d57b (patch)
tree017db6c8be411c52ab98093e94dcce3c7ca3f029 /gcc/loop.c
parent9d1bcb4667cf94ae02b3b3015694a55175be9c9f (diff)
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* Check in merge from gcc2. See ChangeLog.12 for details.
From-SVN: r19553
Diffstat (limited to 'gcc/loop.c')
-rw-r--r--gcc/loop.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/loop.c b/gcc/loop.c
index 70ecfa8..51e554d 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -480,6 +480,8 @@ loop_optimize (f, dumpfile, unroll_p)
/* See if we went too far. */
if (get_max_uid () > max_uid_for_loop)
abort ();
+ /* Now reset it to the actual size we need. See above. */
+ max_uid_for_loop = get_max_uid () + 1;
/* Compute the mapping from uids to luids.
LUIDs are numbers assigned to insns, like uids,
@@ -4115,7 +4117,8 @@ strength_reduce (scan_start, end, loop_top, insn_count,
/* We don't handle reversed biv's because bl->biv->insn
does not have a valid INSN_LUID. */
&& ! bl->reversed
- && v->always_executed && ! v->maybe_multiple)
+ && v->always_executed && ! v->maybe_multiple
+ && INSN_UID (v->insn) < max_uid_for_loop)
{
/* If other giv's have been combined with this one, then
this will work only if all uses of the other giv's occur