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authorRichard Henderson <richard.henderson@linaro.org>2019-01-07 15:23:45 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-01-07 15:23:45 +0000
commit407e6ce7f1f428cb242d424cd35381a77b5b2071 (patch)
tree23cf35a27510d95959bc8e3b44db68ae2ddcddfb
parentaad821ac4faad369fad8941d25e59edf2514246b (diff)
downloadqemu-arm-407e6ce7f1f428cb242d424cd35381a77b5b2071.tar.gz
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: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20181226215003.31438-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
-rw-r--r--target/arm/sve.decode5
1 files changed, 3 insertions, 2 deletions
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index e10b689454..4f580a25e7 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -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