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Re: [PATCH][AArch64] Fix PR 64263: Do not try to split constants when destination is SIMD reg

From: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Ramana Radhakrishnan <Ramana dot Radhakrishnan at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>
Date: Fri, 16 Jan 2015 13:46:39 +0000
Subject: Re: [PATCH][AArch64] Fix PR 64263: Do not try to split constants when destination is SIMD reg
Authentication-results: sourceware.org; auth=none
References: <548B0AD0 dot 6050304 at arm dot com> <54AFBC46 dot 10203 at arm dot com>

Ping.

Thanks,
Kyrill
On 09/01/15 11:32, Kyrill Tkachov wrote:

Ping.

https://gcc.gnu.org/ml/gcc-patches/2014-12/msg01116.html

Thanks,
Kyrill

On 12/12/14 15:33, Kyrill Tkachov wrote:

Hi all,

Since the movsi_aarch64 and movdi_aarch64 patterns became splitters we
want to make sure that the splitting happens only when we deal with GP
registers.

This patch guards the splitting part by GP_REGNUM_P rather than trying
to complicate aarch64_expand_mov_immediate too much to try and handle
the SIMD registers case.

A testcase is added.
Bootstrap on aarch64-none-linux-gnu and testing on aarch64-none-elf was
succesfull.

Ok for trunk?

Thanks,
Kyrill

2014-12-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
               Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>

       PR target/64263
       * config/aarch64/aarch64.md (*movsi_aarch64): Don't split if the
       destination is not a GP reg.
       (*movdi_aarch64): Likewise.

2014-12-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

       PR target/64263
       * gcc.target/aarch64/pr64263_1.c: New test.

References:
- Re: [PATCH][AArch64] Fix PR 64263: Do not try to split constants when destination is SIMD reg
  - From: Kyrill Tkachov

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