Commit 407e6ce7 authored by Richard Henderson's avatar Richard Henderson Committed by Peter Maydell
Browse files

target/arm: SVE brk[ab] merging does not have s bit 



While brk[ab] zeroing has a flags setting option, the merging variant
does not.  Retain the same argument structure, to share expansion but
force the flag zero and do not decode bit 22.

Reported-by: default avatarLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Message-id: 20181226215003.31438-1-richard.henderson@linaro.org
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent aad821ac

target/arm/sve.decode

+3 −2
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ 


# Two operand with governing predicate, flags setting

@pd_pg_pn_s     ........ . s:1 ...... .. pg:4 . rn:4 . rd:4     &rpr_s

@pd_pg_pn_s0    ........ . .   ...... .. pg:4 . rn:4 . rd:4     &rpr_s s=0



# Three operand with unused vector element size

@rd_rn_rm_e0    ........ ... rm:5 ... ... rn:5 rd:5             &rrr_esz esz=0
@@ -667,8 +668,8 @@ BRKPB 00100101 0. 00 .... 11 .... 0 .... 1 .... @pd_pg_pn_pm_s 
# SVE partition break condition

BRKA_z          00100101 0. 01000001 .... 0 .... 0 ....         @pd_pg_pn_s

BRKB_z          00100101 1. 01000001 .... 0 .... 0 ....         @pd_pg_pn_s

BRKA_m          00100101 0. 01000001 .... 0 .... 1 ....         @pd_pg_pn_s

BRKB_m          00100101 1. 01000001 .... 0 .... 1 ....         @pd_pg_pn_s

BRKA_m          00100101 00 01000001 .... 0 .... 1 ....         @pd_pg_pn_s0

BRKB_m          00100101 10 01000001 .... 0 .... 1 ....         @pd_pg_pn_s0



# SVE propagate break to next partition

BRKN            00100101 0. 01100001 .... 0 .... 0 ....         @pd_pg_pn_s