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target/arm: Implement SVE2 saturating multiply-add high

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SVE2 has two additional sizes of the operation and unlike NEON,
there is no saturation flag.  Create new entry points for SVE2
that do not set QC.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-36-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:01 -07:00 • committed by Peter Maydell
parent bfc9307ee1
commit ab3ddf3185
4 changed files with 195 additions and 6 deletions
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target/arm/sve.decode
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@ -1346,3 +1346,8 @@ SQDMLSLT_zzzw 01000100 .. 0 ..... 0110 11 ..... ..... @rda_rn_rm
SQDMLALBT 01000100 .. 0 ..... 00001 0 ..... ..... @rda_rn_rm
SQDMLSLBT 01000100 .. 0 ..... 00001 1 ..... ..... @rda_rn_rm
## SVE2 saturating multiply-add high
SQRDMLAH_zzzz 01000100 .. 0 ..... 01110 0 ..... ..... @rda_rn_rm
SQRDMLSH_zzzz 01000100 .. 0 ..... 01110 1 ..... ..... @rda_rn_rm