[gcc(refs/users/meissner/heads/work251-sha)] Update ChangeLog.*

https://gcc.gnu.org/g:654915faa559e2c027829a58e8a5d34ec021dfc2

commit 654915faa559e2c027829a58e8a5d34ec021dfc2
Author: Michael Meissner <[email protected]>
Date:   Thu Jul 16 15:29:41 2026 -0400

    Update ChangeLog.*

Diff:
---
 gcc/ChangeLog.sha | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/gcc/ChangeLog.sha b/gcc/ChangeLog.sha
index 6c43abf29028..9961ccdd8485 100644
--- a/gcc/ChangeLog.sha
+++ b/gcc/ChangeLog.sha
@@ -1,3 +1,36 @@
+==================== Branch work251-sha, patch #411 ====================
+
+Add future test support.
+
+2026-07-16  Michael Meissner  <[email protected]>
+
+gcc/testsuite/
+
+	* lib/target-supports.exp (check_effective_target_powerpc_future_ok):
+	New target support.
+
+==================== Branch work251-sha, patch #410 ====================
+
+Add xvrlw support.
+
+This patch adds support for a possible new variant of the vector rotate left
+instruction that might be added to a future PowerPC.  This variant (xvrlw) can
+use any VSX register instead of requiring only Altivec registers.
+
+As a potential test, add other variants of vxvrl<x> enabled with the -mxvrld option.
+
+2026-07-16  Michael Meissner  <[email protected]>
+
+gcc/
+
+	* config/rs6000/altivec.md (xvrlw): New insn.
+	(test_xvrl<VI_char>): Add test insns.
+	* config/rs6000/rs6000.h (TARGET_XVRLD): New macro.
+
+gcc/testsuite/
+
+	* lib/target-supports.exp
+
 ==================== Branch work251-sha, patch #408 ====================
 
 PR target/117251: Add tests