public inbox for gcc-patches@gcc.gnu.org
 help / color / mirror / Atom feed
* [PATCH 2/2] Revert maybe_ne -> known_ne change in vn_reference_lookup_3
@ 2022-07-01 12:19 Richard Biener
  2022-07-01 12:34 ` Richard Sandiford
  0 siblings, 1 reply; 2+ messages in thread
From: Richard Biener @ 2022-07-01 12:19 UTC (permalink / raw)
  To: gcc-patches

This reverts the change as discussed.

Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.

2022-07-01  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.cc (vn_reference_lookup_3): Revert
	back to using maybe_ne (off, -1).
---
 gcc/tree-ssa-sccvn.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/tree-ssa-sccvn.cc b/gcc/tree-ssa-sccvn.cc
index c40c45ed840..f41d5031365 100644
--- a/gcc/tree-ssa-sccvn.cc
+++ b/gcc/tree-ssa-sccvn.cc
@@ -3243,12 +3243,12 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *data_,
       poly_int64 extra_off = 0;
       if (j == 0 && i >= 0
 	  && lhs_ops[0].opcode == MEM_REF
-	  && known_ne (lhs_ops[0].off, -1))
+	  && maybe_ne (lhs_ops[0].off, -1))
 	{
 	  if (known_eq (lhs_ops[0].off, vr->operands[i].off))
 	    i--, j--;
 	  else if (vr->operands[i].opcode == MEM_REF
-		   && known_ne (vr->operands[i].off, -1))
+		   && maybe_ne (vr->operands[i].off, -1))
 	    {
 	      extra_off = vr->operands[i].off - lhs_ops[0].off;
 	      i--, j--;
-- 
2.35.3

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-07-01 12:34 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-01 12:19 [PATCH 2/2] Revert maybe_ne -> known_ne change in vn_reference_lookup_3 Richard Biener
2022-07-01 12:34 ` Richard Sandiford

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).