On 05/16/13 07:46, Zhenqiang Chen wrote:
On 15 May 2013 06:36, Ramana Radhakrishnan <ramana....@googlemail.com> wrote:
What happens to the *arm_simple_return pattern that already exists in
the backend ? Can you rebase to trunk ?
The *arm_simple_return is the same as "simple_return" used by
shrink-wrap. *arm_return and *arm_simple_return are not merged since
*arm_return is for "Often the return insn will be the same as loading
from memory", while *arm_simple_return is for "branch".
For thumb2, there is only "simple_return" pattern -- *thumb2_return.
And this is the reason why the "normal" return generated by epilogue
and "simple" return generated by shrink-wrap can be optimized as one,
which leads to dwarf info issue.
The rebased patch is attached.
Ok.
Ramana
Thanks!
-Zhenqiang
On Wed, Apr 3, 2013 at 7:50 AM, Zhenqiang Chen
<zhenqiang.c...@linaro.org> wrote:
On 2 April 2013 17:55, Ramana Radhakrishnan <ramana....@googlemail.com> wrote:
On Thu, Mar 21, 2013 at 7:03 AM, Zhenqiang Chen
<zhenqiang.c...@linaro.org> wrote:
Hi,
The patch is to enable shrink-wrap for TARGET_ARM and TARGET_THUMB2.
Bootstrapped and no make check regression.
All previous Linaro shrink-wrap bugs (http://goo.gl/6fGg5) are verified.
Is it OK?
The tests should be part of the patch attached and not just added as
separate files in your patch submission.
Thank you for t
-Zhenqiang
Thanks!
-Zhenqiang
ChangeLog:
2013-03-21 Bernd Schmidt <ber...@codesourcery.com>
Zhenqiang Chen <zhenqiang.c...@linaro.org>
* config/arm/arm-protos.h: Add and update function protos.
* config/arm/arm.c (use_simple_return_p): New added.
(thumb2_expand_return): Check simple_return flag.
* config/arm/arm.md: Add simple_return and conditional simple_return.
* config/arm/iterators.md: Add iterator for return and simple_return.
testsuite/ChangeLog:
2013-03-21 Zhenqiang Chen <zhenqiang.c...@linaro.org>
* gcc.dg/shrink-wrap-alloca.c: New added.
* gcc.dg/shrink-wrap-pretend.c: New added.
* gcc.dg/shrink-wrap-sibcall.c: New added.
