[gcc(refs/users/meissner/heads/work230)] Update ChangeLog.*

[Michael Meissner]

https://gcc.gnu.org/g:7396000cd94e09986784fcf3d6e3ae796a0a99fa

commit 7396000cd94e09986784fcf3d6e3ae796a0a99fa
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Thu Dec 4 19:53:28 2025 -0500

    Update ChangeLog.*

Diff:
---
 gcc/ChangeLog.meissner | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index 7670adfe22e7..6e92fae10219 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,3 +1,32 @@
+==================== Branch work230, patch #2 ====================
+
+Use vector pair load/store for memcpy with -mcpu=future
+
+In the development for the power10 processor, GCC did not enable using the load
+vector pair and store vector pair instructions when optimizing things like
+memory copy.  This patch enables using those instructions if -mcpu=future is
+used.
+
+I have tested these patches on both big endian and little endian PowerPC
+servers, with no regressions.  Can I check these patchs into the trunk?
+
+2025-12-04  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config/rs6000/rs6000-cpus.def (FUTURE_MASKS_SERVER): Enable using load
+	vector pair and store vector pair instructions for memory copy
+	operations.
+	(POWERPC_MASKS): Make the option for enabling using load vector pair and
+	store vector pair operations set and reset when the PowerPC processor is
+	changed.
+	* gcc/config/rs6000/rs6000.cc (rs6000_machine_from_flags): Disable
+	-mblock-ops-vector-pair from influencing .machine selection.
+
+gcc/testsuite/
+
+	* gcc.target/powerpc/future-3.c: New test.
+
 ==================== Branch work230, patch #1 ====================
 
 Add -mcpu=future.