[gcc(refs/users/meissner/heads/work133-vpair)] Update ChangeLog.vpair

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

https://gcc.gnu.org/g:fcdb943a6d84194a913b5e3b8545855836c6d2a3

commit fcdb943a6d84194a913b5e3b8545855836c6d2a3
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Thu Aug 31 01:55:12 2023 -0400

    Update ChangeLog.vpair

Diff:
---
 gcc/ChangeLog.vpair | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gcc/ChangeLog.vpair b/gcc/ChangeLog.vpair
index 0ab201c6135b..929e291a177b 100644
--- a/gcc/ChangeLog.vpair
+++ b/gcc/ChangeLog.vpair
@@ -1,3 +1,28 @@
+==================== Branch work133-vpair, patch #20 ====================
+
+Add support for vector pair built-in functions.
+
+2023-08-30  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config/rs6000/predicates.md (mma_assemble_input_operand): Allow other
+	16-byte vectors and not just V16QImode.
+	* config/rs6000/rs6000-builtins.def (__builtin_vpair_*): Add vector pair
+	built-in functions.
+	* config/rs6000/rs6000-protos.h (split_unary_vector_pair): Add
+	declaration.
+	(split_binary_vector_pair): Likewise.
+	(split_fma_vector_pair): Likewise.
+	* config/rs6000/rs6000.cc (split_unary_vector_pair): New helper function
+	for vector pair built-in functions.
+	(split_binary_vector_pair): Likewise.
+	(split_fma_vector_pair): Likewise.
+	* config/rs6000/rs6000.md (toplevel): Include vector-pair.md.
+	* config/rs6000/t-rs6000 (MD_INCLUDES): Add vector-pair.md.
+	* doc/extend.texi (PowerPC Vector Pair Built-in Functions): Document the
+	vector pair built-in functions.
+
 ==================== Branch work133-vpair, baseline ====================
 
 2023-08-30   Michael Meissner  <meissner@linux.ibm.com>