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target/arm: Implement SVE2 saturating multiply-add (indexed)

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-57-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:03:22 -07:00 • committed by Peter Maydell
parent 75d6d5fc33
commit c5c455d783
4 changed files with 76 additions and 0 deletions
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18
target/arm/sve.decode
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@ -30,6 +30,8 @@
%size_23 23:2
%dtype_23_13 23:2 13:2
%index3_22_19 22:1 19:2
%index3_19_11 19:2 11:1
%index2_20_11 20:1 11:1
# A combination of tsz:imm3 -- extract esize.
%tszimm_esz 22:2 5:5 !function=tszimm_esz
@ -261,6 +263,12 @@
@rrxr_1 ........ .. . index:1 rm:4 ...... rn:5 rd:5 \
&rrxr_esz ra=%reg_movprfx
# Three registers and a scalar by N-bit index, alternate
@rrxr_3a ........ .. ... rm:3 ...... rn:5 rd:5 \
&rrxr_esz ra=%reg_movprfx index=%index3_19_11
@rrxr_2a ........ .. .. rm:4 ...... rn:5 rd:5 \
&rrxr_esz ra=%reg_movprfx index=%index2_20_11
###########################################################################
# Instruction patterns. Grouped according to the SVE encodingindex.xhtml.
@ -799,6 +807,16 @@ SQRDMLSH_zzxz_h 01000100 0. 1 ..... 000101 ..... ..... @rrxr_3 esz=1
SQRDMLSH_zzxz_s 01000100 10 1 ..... 000101 ..... ..... @rrxr_2 esz=2
SQRDMLSH_zzxz_d 01000100 11 1 ..... 000101 ..... ..... @rrxr_1 esz=3
# SVE2 saturating multiply-add (indexed)
SQDMLALB_zzxw_s 01000100 10 1 ..... 0010.0 ..... ..... @rrxr_3a esz=2
SQDMLALB_zzxw_d 01000100 11 1 ..... 0010.0 ..... ..... @rrxr_2a esz=3
SQDMLALT_zzxw_s 01000100 10 1 ..... 0010.1 ..... ..... @rrxr_3a esz=2
SQDMLALT_zzxw_d 01000100 11 1 ..... 0010.1 ..... ..... @rrxr_2a esz=3
SQDMLSLB_zzxw_s 01000100 10 1 ..... 0011.0 ..... ..... @rrxr_3a esz=2
SQDMLSLB_zzxw_d 01000100 11 1 ..... 0011.0 ..... ..... @rrxr_2a esz=3
SQDMLSLT_zzxw_s 01000100 10 1 ..... 0011.1 ..... ..... @rrxr_3a esz=2
SQDMLSLT_zzxw_d 01000100 11 1 ..... 0011.1 ..... ..... @rrxr_2a esz=3
# SVE2 integer multiply (indexed)
MUL_zzx_h 01000100 0. 1 ..... 111110 ..... ..... @rrx_3 esz=1
MUL_zzx_s 01000100 10 1 ..... 111110 ..... ..... @rrx_2 esz=2