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From: Michael Meissner <meissner@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc(refs/users/meissner/heads/work158-future)] Update ChangeLog.*
Date: Thu, 15 Feb 2024 22:37:35 +0000 (GMT) [thread overview]
Message-ID: <20240215223735.BA195386D633@sourceware.org> (raw)
https://gcc.gnu.org/g:cd30ce15cad0baf56a9e3708df2188d8bb6770e1
commit cd30ce15cad0baf56a9e3708df2188d8bb6770e1
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Thu Feb 15 17:37:32 2024 -0500
Update ChangeLog.*
Diff:
---
gcc/ChangeLog.future | 105 +++++++++++++++++++++++++++++++++------------------
1 file changed, 68 insertions(+), 37 deletions(-)
diff --git a/gcc/ChangeLog.future b/gcc/ChangeLog.future
index 0696de9149be..0ca84014bad0 100644
--- a/gcc/ChangeLog.future
+++ b/gcc/ChangeLog.future
@@ -1,74 +1,86 @@
-==================== Branch work158-future, patch #107 ====================
+==================== Branch work158-future, patch #116 ====================
-Enable using vector pair load/store for -mcpu=future
+Add configure support for PowerPC future.
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
- * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Turn on
- -mblock-ops-vector-pair for -mcpu=future.
+ * config.gcc (powerpc*-*-*, rs6000-*-*): Add support for
+ --with-cpu=future.
-==================== Branch work158-future, patch #106 ====================
+==================== Branch work158-future, patch #115 ====================
-Set future machine type in assembler if -mcpu=future
+Enable using vector pair load/store for -mcpu=future
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+Late in the development of power10, we discovered that there were some issues
+in using load vector pair and store vector pair instructions to do memory
+copies, so the defaults were modified to not use these instructions. This
+patch re-enables using load and store vector pair instructions.
+
+Previously the -mblock-ops-vector-pair switch was not set in POWERPC_MASKS.
+This means the option was not reset if the cpu was changed via target
+attributes or targt pragmas. I added this mask to POWERPC_MASKS since the
+option is set via -mcpu=future.
+
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
- * config/rs6000/rs6000.cc (rs6000_machine_from_flags): Output .machine
- future if -mcpu=future.
+ * config/rs6000/rs6000-cpus.def (ISA_FUTURE_MASKS_SERVER): Turn on
+ -mblock-ops-vector-pair for -mcpu=future.
+ (POWERPC_MASKS): Add -mblock-ops-vector-pair.
-==================== Branch work158-future, patch #105 ====================
+==================== Branch work158-future, patch #114 ====================
-Make -mtune=future be the same as -mtune=power10.
+Set future machine type in assembler if -mcpu=future
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+This patch uses the .machine directive to tell the assembler to use any
+possible future instructions.
+
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
- * config/rs6000/rs6000.cc (rs6000_option_override_internal): Make
- -mtune=future become -mtune=power10.
+ * config/rs6000/rs6000.cc (rs6000_machine_from_flags): Output .machine
+ future if -mcpu=future.
-==================== Branch work158-future, patch #104 ====================
+==================== Branch work158-future, patch #113 ====================
Pass -mfuture to assembler if -mcpu=future.
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+This patch passes -mfuture to the assembler if the user used -mcpu=future.
+
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000.h (ASM_CPU_SPEC): If -mcpu=future, pass -mfuture
to the assembler.
-==================== Branch work158-future, patch #103 ====================
+==================== Branch work158-future, patch #112 ====================
Define _ARCH_PWR_FUTURE if -mcpu=future.
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+This patch defines _ARCH_PWR_FUTURE if -mcpu=future was used.
+
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
* config/rs6000/rs6000-c.cc (rs6000_target_modify_macros): Define
_ARCH_PWR_FUTURE if -mcpu=future.
-==================== Branch work158-future, patch #102 ====================
-
-Add debugging for -mcpu=future
-
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
-
-gcc/
-
- * config/rs6000/rs6000.cc (rs6000_opt_masks): Add entry to print out
- -mfuture in the isa flags.
-
-==================== Branch work158-future, patch #101 ====================
+==================== Branch work158-future, patch #111 ====================
Add initial -mcpu=future support.
-2024-02-09 Michael Meissner <meissner@linux.ibm.com>
+This patch adds the basic support for -mcpu=future, which is a framework to add
+support for possible future PowerPCs. Until there are changes for a possible
+future PowerPC, -mcpu=future and -mtune=future default to power10. An ISA bit
+is set to denote possible future instructions are enabled.
+
+2024-02-15 Michael Meissner <meissner@linux.ibm.com>
gcc/
@@ -76,11 +88,30 @@ gcc/
bits for -mcpu=future.
(POWERPC_MASKS): Add -mfuture mask.
(future cpu): Add -mcpu=future.
- * config/rs6000/rs6000-opts.h (PROCESSOR_FUTURE): New processor type.
- * config/rs6000/rs6000-tables.opt (rs6000_cpu_opt_value): Likewise.
- * config/rs6000/rs6000.md (cpu attribute): Likewise.
- * config/rs6000/rs6000.opt (-mfuture): New insert mask for -mcpu=future.
- * doc/invoke.texi (PowerPC options): Add -mcpu=future.
+ * config/rs6000/rs6000-opts.h (PROCESSOR_FUTURE): Map PROCESSOR_FUTURE
+ into PROCESSOR_POWER10 until there are differences that necessate a new
+ processor enumeration.
+ * config/rs6000/rs6000-tables.opt (rs6000_cpu_opt_value): Add future
+ variant.
+ * config/rs6000/rs6000.cc (rs6000_opt_masks): Add printing -mfuture if
+ -mdebug=reg is used. Do not allow it to be set with a target attribute
+ or pragma.
+ * config/rs6000/rs6000.opt (-mfuture): New ISA bit for -mcpu=future.
+ * doc/invoke.texi (PowerPC options): Document -mcpu=future.
+
+==================== Branch work158-future, patch #107 was reverted ====================
+
+==================== Branch work158-future, patch #106 was reverted ====================
+
+==================== Branch work158-future, patch #105 was reverted ====================
+
+==================== Branch work158-future, patch #104 was reverted ====================
+
+==================== Branch work158-future, patch #103 was reverted ====================
+
+==================== Branch work158-future, patch #102 was reverted ====================
+
+==================== Branch work158-future, patch #101 was reverted ====================
==================== Branch work158-future, patch #2 from work158 ====================
next reply other threads:[~2024-02-15 22:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-15 22:37 Michael Meissner [this message]
-- strict thread matches above, loose matches on Subject: below --
2024-02-10 5:52 Michael Meissner
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