From: David Holsgrove <david.holsgrove@xilinx.com>
To: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Cc: "Michael Eager (eager@eagercon.com)" <eager@eagercon.com>,
John Williams <jwilliams@xilinx.com>,
"Edgar E. Iglesias (edgar.iglesias@gmail.com)"
<edgar.iglesias@gmail.com>, Vinod Kathail <vinodk@xilinx.com>,
Vidhumouli Hunsigida <vidhum@xilinx.com>,
Nagaraju Mekala <nmekala@xilinx.com>, Tom Shui <tshui@xilinx.com>
Subject: [Patch, microblaze]: Free variable local allocs at block ends
Date: Mon, 11 Feb 2013 06:38:00 -0000 [thread overview]
Message-ID: <30ab1be6-fc05-4cfa-b942-47aefc56a8c7@CO9EHSMHS013.ehs.local> (raw)
[-- Attachment #1: Type: text/plain, Size: 226 bytes --]
Free variable local allocs at block ends.
Changelog
2013-02-11 Edgar E. Iglesias <edgar.iglesias@gmail.com>
* config/microblaze/microblaze.md (save_stack_block):
Define.
(restore_stack_block): Likewise.
[-- Attachment #2: 0003-gcc-microblaze-Free-variable-local-allocs-at-block-e.patch --]
[-- Type: application/octet-stream, Size: 1632 bytes --]
From 6c5916d3c79e65415070a75fe17662a49a9d6bf9 Mon Sep 17 00:00:00 2001
From: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Date: Sun, 21 Aug 2011 22:26:46 +0200
Subject: [PATCH] gcc-microblaze: Free variable local allocs at block ends.
Changelog
2013-02-11 Edgar E. Iglesias <edgar.iglesias@gmail.com>
* config/microblaze/microblaze.md (save_stack_block):
Define.
(restore_stack_block): Likewise.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
---
gcc/config/microblaze/microblaze.md | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md
index 69df592..1d55a16 100644
--- a/gcc/config/microblaze/microblaze.md
+++ b/gcc/config/microblaze/microblaze.md
@@ -1860,6 +1860,32 @@
}
)
+(define_expand "save_stack_block"
+ [(match_operand 0 "register_operand" "")
+ (match_operand 1 "register_operand" "")]
+ ""
+ {
+ emit_move_insn (operands[0], operands[1]);
+ DONE;
+ }
+)
+
+(define_expand "restore_stack_block"
+ [(match_operand 0 "register_operand" "")
+ (match_operand 1 "register_operand" "")]
+ ""
+ {
+ rtx retaddr = gen_rtx_MEM (Pmode, stack_pointer_rtx);
+ rtx rtmp = gen_rtx_REG (SImode, R_TMP);
+
+ /* Move the retaddr. */
+ emit_move_insn (rtmp, retaddr);
+ emit_move_insn (operands[0], operands[1]);
+ emit_move_insn (gen_rtx_MEM (Pmode, operands[0]), rtmp);
+ DONE;
+ }
+)
+
;; Trivial return. Make it look like a normal return insn as that
;; allows jump optimizations to work better .
(define_expand "return"
--
1.7.3.2
next reply other threads:[~2013-02-11 6:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-11 6:38 David Holsgrove [this message]
2013-02-17 16:18 ` Michael Eager
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=30ab1be6-fc05-4cfa-b942-47aefc56a8c7@CO9EHSMHS013.ehs.local \
--to=david.holsgrove@xilinx.com \
--cc=eager@eagercon.com \
--cc=edgar.iglesias@gmail.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=jwilliams@xilinx.com \
--cc=nmekala@xilinx.com \
--cc=tshui@xilinx.com \
--cc=vidhum@xilinx.com \
--cc=vinodk@xilinx.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).