From: Alexandre Oliva <oliva@adacore.com>
Date: Thu, 21 Dec 2023 06:21:23 +0000 (-0300)
Subject: -finline-stringops: drop obsolete comment [PR112778]
X-Git-Tag: basepoints/gcc-15~3370
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=514ea1df444ca7f64c3f504ced05d8fb5fbfd62d;p=thirdparty%2Fgcc.git

-finline-stringops: drop obsolete comment [PR112778]

When fixing the PR, I failed to remove the comment that raised the
very concern that the PR confirmed, and that the earlier patch for the
PR fixed.


for  gcc/ChangeLog

	PR target/112778
	* builtins.cc (try_store_by_multiple_pieces): Drop obsolete
	comment.
---

diff --git a/gcc/builtins.cc b/gcc/builtins.cc
index 0f64feeedbad..125ea158ebfa 100644
--- a/gcc/builtins.cc
+++ b/gcc/builtins.cc
@@ -4491,10 +4491,6 @@ try_store_by_multiple_pieces (rtx to, rtx len, unsigned int ctz_len,
       if (max_len >> max_bits > min_len >> max_bits)
 	tst_bits = max_bits;
     }
-  /* ??? Do we have to check that all powers of two lengths from
-     max_bits down to ctz_len pass can_store_by_pieces?  As in, could
-     it possibly be that xlenest passes while smaller power-of-two
-     sizes don't?  */
 
   by_pieces_constfn constfun;
   void *constfundata;