Re: [Qemu-devel] [Qemu-arm] [PATCH v1 00/12] ARM v8.1 simd + v8.3 complex insns

["Alex Bennée" <alex.bennee@linaro.org>]

Richard Henderson <richard.henderson@linaro.org> writes:

> This patch set depends on v3 of native-vector-registers;
> for ease of review the whole tree is at
>
>   git://github.com/rth7680/qemu.git tgt-arm-cplx
>
> I have successfully tested all insns for AArch64 via RISU.
> I have successfully tested everything but VCMLA for AArch32.
>
> The insn that doesn't match up is
>
>   fef3c848  vcmla.f32  q14, <illegal reg q1.5>, d8[0], #270
>
> for which FoundationModel is *not* signalling illegal insn.
> I'm not really sure what it is doing -- perhaps treating the
> insn as a coprocessor 8 nop?  I'll have to investigate further.
>
> In the meantime, it's surely time for a round 1 review.

OK I'm done with round 1 review, I skipped past the later complex
instructions as I don't have access to the 8.3 ARM ARM yet (although the
instructions are in the ASL HTML dumps).

>
>
> r~
>
>
> Richard Henderson (12):
>   HACK: use objdump disas
>   target/arm: Add ARM_FEATURE_V8_1_SIMD
>   target/arm: Decode aa64 armv8.1 scalar three same extra
>   target/arm: Decode aa64 armv8.1 three same extra
>   target/arm: Decode aa64 armv8.1 scalar/vector x indexed element
>   target/arm: Decode aa32 armv8.1 three same
>   target/arm: Decode aa32 armv8.1 two reg and a scalar
>   target/arm: Add ARM_FEATURE_V8_FCMA
>   target/arm: Decode aa64 armv8.3 fcadd
>   target/arm: Decode aa64 armv8.3 fcmla
>   target/arm: Decode aa32 armv8.3 3-same
>   target/arm: Decode aa32 armv8.3 2-reg-index
>
>  target/arm/cpu.h            |   2 +
>  target/arm/helper.h         |  26 ++++
>  disas.c                     |   2 +-
>  linux-user/elfload.c        |  10 ++
>  target/arm/advsimd_helper.c | 331 +++++++++++++++++++++++++++++++++++++++++
>  target/arm/cpu.c            |   2 +
>  target/arm/cpu64.c          |   2 +
>  target/arm/translate-a64.c  | 350 +++++++++++++++++++++++++++++++++++++++-----
>  target/arm/translate.c      | 241 +++++++++++++++++++++++++++---
>  target/arm/Makefile.objs    |   2 +-
>  10 files changed, 912 insertions(+), 56 deletions(-)
>  create mode 100644 target/arm/advsimd_helper.c


--
Alex Bennée