Re: [Qemu-devel] [PATCH v4 0/7] tcg/ppc: Add vector opcodes

[David Gibson <david@gibson.dropbear.id.au>]

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On Mon, Jun 17, 2019 at 10:00:10PM -0700, Richard Henderson wrote:
> Ping.  Otherwise I'll include it in my next tcg pull.

Uh.. I'm not sure who this ping is directed at.  I'm afraid this
series has dropped off my radar.

> 
> 
> r~
> 
> On 5/18/19 9:15 PM, Richard Henderson wrote:
> > Based-on: <20190518190157.21255-1-richard.henderson@linaro.org>
> > Aka "tcg: misc gvec improvements".
> > 
> > Version 3 was last posted in March,
> > https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg05859.html
> > 
> > Changes since v3:
> >   * Add support for bitsel, with the vsx xxsel insn.
> >   * Rely on the new relocation overflow handling, so
> >     we don't require 3 insns for a vector load.
> > 
> > Changes since v2:
> >   * Several generic tcg patches to improve dup vs dupi vs dupm.
> >     In particular, if a global temp (like guest r10) is not in
> >     a host register, we should duplicate from memory instead of
> >     loading to an integer register, spilling to stack, loading
> >     to a vector register, and then duplicating.
> >   * I have more confidence that 32-bit ppc host should work
> >     this time around.  No testing on that front yet, but I've
> >     unified some code sequences with 64-bit ppc host.
> >   * Base altivec now supports V128 only.  Moved V64 support to
> >     Power7 (v2.06), which has 64-bit load/store.
> >   * Dropped support for 64-bit vector multiply using Power8.
> >     The expansion was too large compared to using integer regs.
> > 
> > 
> > r~
> > 
> > 
> > Richard Henderson (7):
> >   tcg/ppc: Initial backend support for Altivec
> >   tcg/ppc: Support vector shift by immediate
> >   tcg/ppc: Support vector multiply
> >   tcg/ppc: Support vector dup2
> >   tcg/ppc: Update vector support to v2.06
> >   tcg/ppc: Update vector support to v2.07
> >   tcg/ppc: Update vector support to v3.00
> > 
> >  tcg/ppc/tcg-target.h     |   39 +-
> >  tcg/ppc/tcg-target.opc.h |   11 +
> >  tcg/ppc/tcg-target.inc.c | 1077 +++++++++++++++++++++++++++++++++++---
> >  3 files changed, 1063 insertions(+), 64 deletions(-)
> >  create mode 100644 tcg/ppc/tcg-target.opc.h
> > 
> 

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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