[gcc(refs/users/meissner/heads/work159)] Update ChangeLog.*

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

https://gcc.gnu.org/g:160393278a3917a2b5d29bd2c73b5aa8c42f3de4

commit 160393278a3917a2b5d29bd2c73b5aa8c42f3de4
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Thu Feb 22 15:38:09 2024 -0500

    Update ChangeLog.*

Diff:
---
 gcc/ChangeLog.meissner | 135 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)

diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index 9fa3164d9dd2..4b75d2ae58ef 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,5 +1,140 @@
+==================== Branch work159, patch #3 ====================
+
+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.
+
+2024-02-21  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Enable using
+	load vector pair and store vector pair instructions for memory copy
+	operations.
+	(POWERPC_MASKS): Make the bit for enabling using load vector pair and
+	store vector pair operations set and reset when the PowerPC processor is
+	changed.
+
+==================== Branch work159, patch #2 ====================
+
+Add power11 aux vector and tests.
+
+This patch adds the support for using __builtin_cpu_is ("power11").
+
+This patch also adds support for the gcc driver program to detect when it is
+running on a power11 system and transforming -mcpu=native into -mcpu=power11.
+
+This patch adds a few simple tests for power11 support, assuming the assembler
+supports the -mpower11 option.
+
+2024-02-21  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config/rs6000/driver-rs6000.c (asm_names): Add power11 support.
+	* config/rs6000/ppc-auxv.h (PPC_PLATFORM_POWER10): Remove comment saying
+	this is not yet official.
+	(PPC_PLATFORM_POWER11): Add power11 support.
+	* config/rs6000/rs6000-builtin.cc (cpu_is_info): Likewise.
+
+gcc/testsuite/
+
+	* lib/target-support.exp (check_effective_target_power11_ok): Add
+	power11 support.
+	* gcc.target/powerpc/power11-1.c: New test.
+	* gcc.target/powerpc/power11-2.c: Likewise.
+	* gcc.target/powerpc/power11-3.c: Likewise.
+
+==================== Branch work159, patch #1 ====================
+
+Add -mcpu=power11 and -mcpu=future support.
+
+This patch adds support for -mcpu=power11 and -mtune=power11.  At the current
+time, no new instructions are implemented.  The tuning for the power11 processor
+is exactly the same as for power10.
+
+If -mcpu=power11 is used, the macro _ARCH_PWR11 will be defined.
+
+In order to use -mcpu=power11, you will need an assembler that supports the
+-mpower11 option.
+
+In addition, this patch adds support for -mcpu=future and -mtune=future.  This
+is to allow for a way to experiment with future additions to the PowerPC
+computers that may or may not become part of the official PowerPC processor line
+up.  At the current time, no new instructions are implemented.  The tuning for
+the future processor is exactly the same as for power10.
+
+If -mcpu=future is used, the macro _ARCH_PWR_FUTURE will be defined.
+
+In order to use -mcpu=future, you will need an assembler that supports the
+-mfuture option.
+
+2024-02-21  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* config.gcc (powerpc*-*-*, rs6000-*-*): Add support for power11 and
+	future processors.
+	* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Define
+	_ARCH_PWR11 if -mcpu=power11 and _ARCH_PWR_FUTURE if -mcpu=future.
+	* config/rs6000/rs6000-cpus.def (ISA_POWER11_MASKS_SERVER): Add support
+	for -mcpu=power11.
+	(ISA_FUTURE_MASKS_SERVER): Add support for -mcpu=future.
+	(POWERPC_MASKS): Add support for -mcpu=power11 and -mcpu=future.
+	(power11 cpu): Add power11 cpu.
+	(future cpu): Add future cpu.
+	* config/rs6000/rs6000-opts.h (PROCESSOR_POWER11): New macro.
+	(PROCESSOR_FUTURE): Likewise.
+	* config/rs6000/rs6000-tables.opt: Regenerate.
+	* config/rs6000/rs6000.cc (rs6000_machine_from_flags): If -mcpu=power11,
+	emit .machine power11.  If -mcpu=future emit .machine future.
+	(rs6000_opt_masks): Add support for power11 and future ISA bits.
+	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Pass -mfuture to the assembler
+	if -mcpu=future.  Pass -mpower11 to the assembler if -mcpu=power11.
+	* config/rs6000/rs6000.opt (-mpower11): New internal ISA bit for
+	power11 cpu.
+	(-mfuture): New internal ISA bit for future cpu.
+	* doc/invoke.texi (PowerPC options): Document -mcpu=future and
+	-mcpu=power11.
+
 ==================== Branch work159, baseline ====================
 
+Add ChangeLog.meissner and REVISION.
+
+2024-02-20  Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+
+	* REVISION: New file for branch.
+	* ChangeLog.meissner: New file.
+
+gcc/c-family/
+
+	* ChangeLog.meissner: New file.
+
+gcc/c/
+
+	* ChangeLog.meissner: New file.
+
+gcc/cp/
+
+	* ChangeLog.meissner: New file.
+
+gcc/fortran/
+
+	* ChangeLog.meissner: New file.
+
+gcc/testsuite/
+
+	* ChangeLog.meissner: New file.
+
+libgcc/
+
+	* ChangeLog.meissner: New file.
+
 2024-02-20   Michael Meissner  <meissner@linux.ibm.com>
 
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