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

[Mark Cave-Ayland]

On 18/06/2019 06:00, Richard Henderson wrote:

> Ping.  Otherwise I'll include it in my next tcg pull.
> 
> r~

I can give this another spin on my test images on a G4 over the next few days. 
I've
also added Howard on CC as he reported some issues with the previous iteration 
at
https://lists.gnu.org/archive/html/qemu-devel/2019-03/msg06561.html.

> On 5/18/19 9:15 PM, Richard Henderson wrote:
>> Based-on: <address@hidden>
>> 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


ATB,

Mark.