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

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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.

Backports commit 407e6ce7f1f428cb242d424cd35381a77b5b2071 from qemu
This commit is contained in:
Richard Henderson 2019-01-13 19:39:02 -05:00 committed by Lioncash
parent 4d8b7a9967
commit 254f882efc
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 3 additions and 2 deletions
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5
qemu/target/arm/sve.decode
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@ -96,6 +96,7 @@
# 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
# Two operand
@pd_pn ........ esz:2 .. .... ....... rn:4 . rd:4 &rr_esz
@ -677,8 +678,8 @@ 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