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target/arm: Implement bfloat16 matrix multiply accumulate

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This is BFMMLA for both AArch64 AdvSIMD and SVE,
and VMMLA.BF16 for AArch32 NEON.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525225817.400336-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-25 15:58:13 -07:00 • committed by Peter Maydell
parent 839144784b
commit 81266a1f58
7 changed files with 81 additions and 3 deletions
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2
target/arm/neon-shared.decode
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@ -67,6 +67,8 @@ VUMMLA 1111 1100 0.10 .... .... 1100 .1.1 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VUSMMLA 1111 1100 1.10 .... .... 1100 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VMMLA_b16 1111 1100 0.00 .... .... 1100 .1.0 .... \
vm=%vm_dp vn=%vn_dp vd=%vd_dp
VCMLA_scalar 1111 1110 0 . rot:2 .... .... 1000 . q:1 index:1 0 vm:4 \
vn=%vn_dp vd=%vd_dp size=1