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target/arm: Implement bfloat16 dot product (indexed)

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This is BFDOT for both AArch64 AdvSIMD and SVE,
and VDOT.BF16 for AArch32 NEON.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525225817.400336-8-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-25 15:58:12 -07:00 • committed by Peter Maydell
parent cb8657f7f9
commit 839144784b
7 changed files with 80 additions and 9 deletions
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2
target/arm/neon-shared.decode
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@ -81,6 +81,8 @@ VUSDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 0 vm:4 \
vn=%vn_dp vd=%vd_dp
VSUDOT_scalar 1111 1110 1 . 00 .... .... 1101 . q:1 index:1 1 vm:4 \
vn=%vn_dp vd=%vd_dp
VDOT_b16_scal 1111 1110 0 . 00 .... .... 1101 . q:1 index:1 0 vm:4 \
vn=%vn_dp vd=%vd_dp
%vfml_scalar_q0_rm 0:3 5:1
%vfml_scalar_q1_index 5:1 3:1