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From: Michael Meissner <meissner@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc(refs/users/meissner/heads/work082)] Update ChangeLog.meissner.
Date: Wed, 23 Mar 2022 23:33:44 +0000 (GMT)	[thread overview]
Message-ID: <20220323233344.E2AB53858C2C@sourceware.org> (raw)

https://gcc.gnu.org/g:ebfdc2c7d4c22bbbf88b8e73818ff95519989262

commit ebfdc2c7d4c22bbbf88b8e73818ff95519989262
Author: Michael Meissner <meissner@linux.ibm.com>
Date:   Wed Mar 23 19:33:24 2022 -0400

    Update ChangeLog.meissner.
    
    2022-03-23   Michael Meissner  <meissner@linux.ibm.com>
    
    gcc/
            * ChangeLog.meissner: Update.

Diff:
---
 gcc/ChangeLog.meissner | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog.meissner b/gcc/ChangeLog.meissner
index f07d4226576..993dca92e4f 100644
--- a/gcc/ChangeLog.meissner
+++ b/gcc/ChangeLog.meissner
@@ -1,4 +1,41 @@
-==================== Work082, patch #8 (reverted):
+==================== Work082, patch #9:
+Improve vsx_extract_<mode>
+
+In looking at PR target/99293, I noticed that the code in
+vsx_extract_<mode> could be improved.
+
+When the element being extracted is the element in the upper 64-bits, we
+should do an insn_split to convert this to a simple move.  This would
+allow the post reload passes to eliminate the move completely.
+
+The insn type attribute was incorrect in that it used "mfvsr" instead of
+"vecperm" when a xxpermdi would be generated.  Also, when a "mvfsrld"
+would be generated, the type should be "mfvsr".
+
+2022-03-23   Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+	PR target/99392
+	* config/rs6000/rs6000.md (vsx_extract_<mode>): Split extracts
+	that are just a move to being a move insn.  Use the correct insn
+	type for the alternatives.
+	(insn splitter for vsx_extract_<mode>): Add new splitter.
+
+==================== Work082, patch #8:
+Improve vsx_splat_<mode>_reg
+
+In looking at PR target/99293, I noticed that the code in
+vsx_splat_<mode>_reg used "vecmove" as the "type" insn attribute when the
+"mtvsrdd" is generated.  It should use "mfvsr".  I also added a "p9v" isa
+attribute for that alternative.
+
+2022-03-23   Michael Meissner  <meissner@linux.ibm.com>
+
+gcc/
+	PR target/99392
+	* config/rs6000/rs6000.md (vsx_splat_<mode>_reg): Use the correct
+	insn type attribute.  Add "p9v" isa attribute as needed.
+
 
 ==================== Work082, patch #7 (reverted):


             reply	other threads:[~2022-03-23 23:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-23 23:33 Michael Meissner [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-03-24 18:24 Michael Meissner
2022-03-24 16:55 Michael Meissner
2022-03-24 16:53 Michael Meissner
2022-03-24  1:35 Michael Meissner
2022-03-23 16:56 Michael Meissner
2022-03-23  5:21 Michael Meissner
2022-03-23  1:29 Michael Meissner
2022-03-22 20:10 Michael Meissner

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