[gcc(refs/users/meissner/heads/work222)] Update ChangeLog.*

[Michael Meissner]

https://gcc.gnu.org/g:c43ecbc7e6703de2e401eddb7aefb4419682eab3

commit c43ecbc7e6703de2e401eddb7aefb4419682eab3
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Sun Sep 21 02:46:27 2025 -0400

    Update ChangeLog.*

Diff:
---
 gcc/ChangeLog.meissner | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index c58ac5f1ee7f..10c5fde68a0f 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,3 +1,21 @@
+==================== Branch work222, patch #3 ====================
+
+Remove internal -mpower11 support.
+
+2025-09-21  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Move power11
+	support to use CPU options.
+	* config/rs6000/rs6000-cpus.def (POWER11_MASKS_SERVER): Likewise.
+	(POWERPC_MASKS): Likewise.
+	* config/rs6000/rs6000.cc (rs6000_machine_from_flags): Likewise.
+	(rs6000_opt_masks): Likewise.
+	* config/rs6000/rs6000.h (TARGET_POWER11): New macro.
+	* config/rs6000/rs6000.opt (-mpower11): Drop power11 from being an ISA
+	option.
+
 ==================== Branch work222, patch #2 ====================
 
 Add -mcpu=future support.