public inbox for gcc-cvs@sourceware.org
help / color / mirror / Atom feed
* [gcc(refs/users/meissner/heads/work133)] Update ChangeLog.meissner
@ 2023-08-31 0:58 Michael Meissner
0 siblings, 0 replies; 2+ messages in thread
From: Michael Meissner @ 2023-08-31 0:58 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:522b5381e6b509a8cd65a51010028fc81853fd5a
commit 522b5381e6b509a8cd65a51010028fc81853fd5a
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Wed Aug 30 20:58:10 2023 -0400
Update ChangeLog.meissner
Diff:
---
gcc/ChangeLog.meissner | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index 83e720b24026..bf1659f17de3 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,5 +1,60 @@
+==================== Branch work133, patch #1 ====================
+
+Replace UNSPEC_COPYSIGN with copysign RTL
+
+When I first implemented COPYSIGN support in the power7 days, we did not have a
+copysign RTL insn, so I had to use UNSPEC to represent the copysign
+instruction. This patch removes those UNSPECs, and it uses the native RTL
+copysign insn.
+
+2023-08-28 Michael Meissner <meissner@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/rs6000.md (UNSPEC_COPYSIGN): Delete.
+ (copysign<mode>3_fcpsg): Use copysign RTL instead of UNSPEC.
+ (copysign<mode>3_hard): Likewise.
+ (copysign<mode>3_soft): Likewise.
+ * config/rs6000/vector.md (vector_copysign<mode>3): Use copysign RTL
+ instead of UNSPEC.
+ * config/rs6000/vsx.md (vsx_copysign<mode>3): Use copysign RTL instead
+ of UNSPEC.
+
==================== Branch work133, baseline ====================
+Add ChangeLog.meissner and REVISION.
+
+2023-08-28 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.
+
2023-08-30 Michael Meissner <meissner@linux.ibm.com>
Clone branch
^ permalink raw reply [flat|nested] 2+ messages in thread
* [gcc(refs/users/meissner/heads/work133)] Update ChangeLog.meissner
@ 2023-08-31 2:08 Michael Meissner
0 siblings, 0 replies; 2+ messages in thread
From: Michael Meissner @ 2023-08-31 2:08 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:c68f9b7c13939db7d7630971001bdd4e18617567
commit c68f9b7c13939db7d7630971001bdd4e18617567
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Wed Aug 30 22:08:31 2023 -0400
Update ChangeLog.meissner
Diff:
---
gcc/ChangeLog.meissner | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index bf1659f17de3..e25ac8a0d896 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,3 +1,44 @@
+==================== Branch work133, patch #2 ====================
+
+Add -mno-lxvp and -mno-stxvp.
+
+This patch adds the options -mno-lxvp and -mno-stxvp that control whether GCC
+will generate vector pair load/stores or split the instructions into separate
+vector loads/stores. These switches are not documented, but are there to allow
+us to look at some places where the paired load/store instructions slow things
+down.
+
+With this patch, GCC will not allow X-form (register + register) vector
+pair loads or stores unless both lxvp and stxvp are being generated.
+
+I also added the lxvp and stxvp command line options to the options that the
+user can enable or disable with #pragma target or attribute target.
+
+The default is to generate the vector pair load/store instructions.
+
+2023-08-30 Michael Meissner <meissner@linux.ibm.com>
+
+gcc/
+
+ * config/rs6000/mma.md (movoo): Add support for -mno-lxvp and
+ -mno-stxvp.
+ * config/rs6000/rs6000.cc (rs6000_debug_reg_global): If -mdebug=reg,
+ print out whether we are generating lxvp and/or stxvp instructions.
+ (rs6000_option_override_internal): Warn if -mlxvp or -mstxvp was used
+ without -mmma being set.
+ (rs6000_setup_reg_addr_masks structure): Add support for -mno-lxvp and
+ -mno-stxvp.
+ (rs6000_opt_vars): Add lxvp and stxvp command line options.
+ * config/rs6000/rs6000.md (isa attribute): Add lxvp and stxvp isa
+ support.
+ (enabled attribute): Likewise.
+ * config/rs6000/rs6000.opt (-mlxvp): New option.
+ (-mstxvp): Likewise.
+
+gcc/testsuite/
+
+ * gcc.target/powerpc/p10-lxvp-stxvp.c: New test.
+
==================== Branch work133, patch #1 ====================
Replace UNSPEC_COPYSIGN with copysign RTL
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-08-31 2:08 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-08-31 0:58 [gcc(refs/users/meissner/heads/work133)] Update ChangeLog.meissner Michael Meissner
2023-08-31 2:08 Michael Meissner
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).