http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40657
Bernhard Reutner-Fischer aldot at gcc dot gnu.org changed:
What|Removed |Added
CC||aldot
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40657
Bernd Schmidt bernds at gcc dot gnu.org changed:
What|Removed |Added
Status|REOPENED|RESOLVED
--- Comment #11 from bernds at gcc dot gnu dot org 2010-07-09 09:03 ---
Subject: Bug 40657
Author: bernds
Date: Fri Jul 9 09:03:22 2010
New Revision: 161988
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=161988
Log:
PR target/40657
* config/arm/arm.c
--- Comment #10 from carrot at google dot com 2010-07-02 17:41 ---
The patch optimizes the prologue part only, the epilogue can also be enhanced.
Now compile the attached test case, I get
push{r0, r1, r2, lr}
add r0, sp, #4
bl bar
ldr
--- Comment #8 from bernds at gcc dot gnu dot org 2010-04-27 09:34 ---
Subject: Bug 40657
Author: bernds
Date: Tue Apr 27 09:34:08 2010
New Revision: 158771
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=158771
Log:
PR target/40657
* config/arm/arm.c
--- Comment #9 from bernds at gcc dot gnu dot org 2010-04-27 09:35 ---
Fixed.
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bernds at gcc dot gnu dot org changed:
What|Removed |Added
Status|NEW
--- Comment #7 from bernds at codesourcery dot com 2010-03-31 21:42 ---
A patch is at http://gcc.gnu.org/ml/gcc-patches/2010-03/msg01274.html
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bernds at codesourcery dot com changed:
What|Removed |Added
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ramana at gcc dot gnu dot org changed:
What|Removed |Added
Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40657
--- Comment #5 from carrot at google dot com 2009-07-07 06:44 ---
Could we do the optimization in function thumb1_expand_prologue? If we find
this opportunity in function thumb1_expand_prologue, we can remove the sp
manipulations from prologue and epilogue. We also should add extra
--- Comment #1 from carrot at google dot com 2009-07-06 08:16 ---
Created an attachment (id=18140)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18140action=view)
test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40657
--- Comment #2 from steven at gcc dot gnu dot org 2009-07-06 09:13 ---
IIRC push-multiple and pop-multiple are not supported yet. Richard E.?
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steven at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #3 from ramana at gcc dot gnu dot org 2009-07-06 09:54 ---
(In reply to comment #2)
IIRC push-multiple and pop-multiple are not supported yet. Richard E.?
I am not sure what you mean here. push and pop multiple are supported to the
best of the cases that GCC can detect
--- Comment #4 from steven at gcc dot gnu dot org 2009-07-06 10:43 ---
Ah, heh, so you're saying that pushing/popping registers you don't have to save
may be a size optimization? That's an interesting idea.
But how to do this in GCC... The push {lr} is never even in the RTL. Output
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