From: Segher Boessenkool <segher@kernel.crashing.org>
To: Michael Meissner <meissner@linux.vnet.ibm.com>,
gcc-patches@gcc.gnu.org,
David Edelsohn <dje.gcc@gmail.com>,
Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Subject: Re: [PATCH], Add PowerPC ISA 3.0 MTVSRDD support
Date: Wed, 01 Jun 2016 18:37:00 -0000 [thread overview]
Message-ID: <20160601183654.GB31838@gate.crashing.org> (raw)
In-Reply-To: <20160531234955.GA5527@ibm-tiger.the-meissners.org>
On Tue, May 31, 2016 at 07:49:55PM -0400, Michael Meissner wrote:
> This patch adds support to issue the MTVSRDD on 64-bit ISA 3.0 systems when the
> compiler has a 64-bit value in a GPR, and it wants to create a vector that has
> the 64-bit value in both sides of the 128-bit value.
> ;; V2DF/V2DI splat
> (define_insn "vsx_splat_<mode>"
> - [(set (match_operand:VSX_D 0 "vsx_register_operand" "=wd,wd,wd,?<VSa>,?<VSa>,?<VSa>")
> + [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>,<VSa>,we")
> (vec_duplicate:VSX_D
> - (match_operand:<VS_scalar> 1 "splat_input_operand" "<VS_64reg>,f,Z,<VSa>,<VSa>,Z")))]
> + (match_operand:<VS_scalar> 1 "splat_input_operand" "<VS_64reg>,Z,r")))]
> "VECTOR_MEM_VSX_P (<MODE>mode)"
> "@
> xxpermdi %x0,%x1,%x1,0
> - xxpermdi %x0,%x1,%x1,0
> lxvdsx %x0,%y1
> - xxpermdi %x0,%x1,%x1,0
> - xxpermdi %x0,%x1,%x1,0
> - lxvdsx %x0,%y1"
> - [(set_attr "type" "vecperm,vecperm,vecload,vecperm,vecperm,vecload")])
> + mtvsrdd %x0,%1,%1"
> + [(set_attr "type" "vecperm,vecload,mftgpr")])
It should use "b" instead of "r" for the mtvsrdd case.
Okay for trunk with that change, after retesting. Okay for 6 later, too.
Thanks,
Segher
parent reply other threads:[~2016-06-01 18:37 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20160531234955.GA5527@ibm-tiger.the-meissners.org>]
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