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Re: [PATCH], PowerPC IEEE 128-bit patch #7 (revised #2), Subpatch #10
- From: David Edelsohn <dje dot gcc at gmail dot com>
- To: Michael Meissner <meissner at linux dot vnet dot ibm dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 29 Oct 2015 10:39:18 -0400
- Subject: Re: [PATCH], PowerPC IEEE 128-bit patch #7 (revised #2), Subpatch #10
- Authentication-results: sourceware.org; auth=none
- References: <20150729200428 dot GA30347 at ibm-tiger dot the-meissners dot org> <20150814154859 dot GC20847 at ibm-tiger dot the-meissners dot org> <20151023172210 dot GA18348 at ibm-tiger dot the-meissners dot org> <20151023174945 dot GK18348 at ibm-tiger dot the-meissners dot org>
On Fri, Oct 23, 2015 at 1:49 PM, Michael Meissner
<meissner@linux.vnet.ibm.com> wrote:
> This patch is part of the support needed to properly swap IEEE 128-bit floating
> point on little endian systems. Note, you will need the rs6000.md changes for
> this to become effective.
>
> I have built the compiler with this patch and the previous subpatches (1-9). I
> have bootstrapped the compiler with all 16 subpatches installed, and there were
> no regressions. Is it ok to install in the trunk?
>
> 2015-10-22 Michael Meissner <meissner@linux.vnet.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): On little
> endian systems generate a ROTATE insn instead of VEC_SELECT for
> IEEE 128-bit floating point types that can go in vector
> registers.
> (chain_contains_only_swaps): Properly swap IEEE 128-bit floating
> point types that can go in vector registers on little endian
> PowerPC systems.
> (mark_swaps_for_removal): Likewise.
> (rs6000_analyze_swaps): Likewise.
Okay.
Thanks, David