* [Patch, microblaze]: Free variable local allocs at block ends
@ 2013-02-11 6:38 David Holsgrove
2013-02-17 16:18 ` Michael Eager
0 siblings, 1 reply; 2+ messages in thread
From: David Holsgrove @ 2013-02-11 6:38 UTC (permalink / raw)
To: gcc-patches
Cc: Michael Eager (eager@eagercon.com),
John Williams, Edgar E. Iglesias (edgar.iglesias@gmail.com),
Vinod Kathail, Vidhumouli Hunsigida, Nagaraju Mekala, Tom Shui
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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.
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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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Patch, microblaze]: Free variable local allocs at block ends
2013-02-11 6:38 [Patch, microblaze]: Free variable local allocs at block ends David Holsgrove
@ 2013-02-17 16:18 ` Michael Eager
0 siblings, 0 replies; 2+ messages in thread
From: Michael Eager @ 2013-02-17 16:18 UTC (permalink / raw)
To: David Holsgrove
Cc: gcc-patches, Michael Eager (eager@eagercon.com),
John Williams, Edgar E. Iglesias (edgar.iglesias@gmail.com),
Vinod Kathail, Vidhumouli Hunsigida, Nagaraju Mekala, Tom Shui
On 02/10/2013 10:38 PM, David Holsgrove wrote:
> 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.
Committed revision 196110.
--
Michael Eager eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306 650-325-8077
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