[PATCH] LRA: Fix caller-save store/restore instruction for large mode

[Kito Cheng]

Hi Bin:

It's 2 more line than gcc.c-torture/execute/scal-to-vec1.c since it's
need specific compilation
flag and specific target to reproduce this issue,
and it's can't reproduce by normal testing flow with
arm-*-linux-gnueabi (due to lack -fPIC flag),
so I prefer duplicate this case into gcc.target/arm/ :)

/* { dg-do compile } */
/* { dg-options "-O3 -fPIC -marm -mcpu=cortex-a8" } */

On Wed, Jan 7, 2015 at 4:50 PM, Bin.Cheng <amker.cheng@gmail.com> wrote:
> On Wed, Jan 7, 2015 at 4:03 PM, Kito Cheng <kito.cheng@gmail.com> wrote:
>> Hi Jeff:
>>
>> It's updated patch,bootstrapped and run regression tested on arm-eabi,
>> arm-none-linux-uclibcgnueabi, x86_64-unknown-linux-gnu and nds32le-elf
>> without introducing regression.
>>
>> Thanks for your review :)
>>
>> 2015-01-07  Kito Cheng  <kito@0xlab.org>
>>
>>         PR target/64348
>>         * lra-constraints.c (split_reg): Fix caller-save store/restore
>> instruction generation.
>
> Thanks for fixing the issue.
> The PR is against existing testcase failure
> gcc.c-torture/execute/scal-to-vec1.c.  Unless we can create a new
> case, there is no need to include same case twice I think?  Or we can
> mention the PR number in the original test case?
>
> Thanks,
> bin