[gcc(refs/users/meissner/heads/work122)] Update ChangeLog.meissner

[Michael Meissner <meissner@gcc.gnu.org>]

https://gcc.gnu.org/g:10017ae72ffb1c5b518de6abe4677fb9d90fbb29

commit 10017ae72ffb1c5b518de6abe4677fb9d90fbb29
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Fri Jun 9 02:09:59 2023 -0400

    Update ChangeLog.meissner

Diff:
---
 gcc/ChangeLog.meissner | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index 055d3cd71b8..3ba4840234b 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,4 +1,4 @@
-==================== Branch work122, patch #4 ====================
+==================== Branch work122, patch #5 ====================
 
 Fix power10 fusion and -fstack-protector, PR target/105325
 
@@ -11,15 +11,13 @@ There are several problems with the current GCC:
     1)	The constraints in fusion.md (generated by genfusion.pl) use "m" for LWA
 	and LD, when they should use "YZ".
 
-    2)	The normal calls to address_is_non_pfx_d_or_x doesn't work with lwa,
-	because you need to pass in DImode instead of SImode.  It is simplified
-	if you use the lwa_operand predicate instead of ds_form_mem_operand.
+    2)	The calls to address_is_non_pfx_d_or_x doesn't work with lwa using
+	SImode as the mode.  You need to pass in DImode instead of SImode.  This
+	is to allow lwz to be treated differently than lwa.
 
 The fix is to modify genfusion.pl that it sets the "YZ" constraint instead of
-"m" for the ld and lwa instructions.
-
-I modified the genfusion.pl code use to use lwa_operand for the lwa instruction
-to prevent prefixed addresses at combine time.
+"m" for the ld and lwa instructions.  And to pass DImode to the
+address_is_non_pfx_d_or_x function for lwa.
 
 2023-06-08   Michael Meissner  <meissner@linux.ibm.com>
 
@@ -33,6 +31,8 @@ gcc/testsuite/
 
 	* g++.target/powerpc/pr105325.C: New test.
 
+==================== Branch work122, patch #4 was reverted ====================
+
 ==================== Branch work122, patch #3 was reverted ====================
 
 ==================== Branch work122, patch #2 was reverted ====================