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authorRichard Henderson <richard.henderson@linaro.org>2022-05-27 11:18:33 -0700
committerPeter Maydell <peter.maydell@linaro.org>2022-05-30 17:05:09 +0100
commit738b679cc961bd086f14d7d7e3f4be116a719810 (patch)
tree116eb632eb51c0543b2c53101885a56ba767f6c4 /target
parent23e5fa5f90a6073f270ec89418085e4cb341a4ea (diff)
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target/arm: Implement NOT (prediates) alias
This alias is defined on EOR (prediates). While the same operation could be performed with NAND or NOR, only bother with the official alias. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220527181907.189259-81-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target')
-rw-r--r--target/arm/translate-sve.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index f33bc9d..b6b5980 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -1381,6 +1381,11 @@ static bool trans_EOR_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_eor_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
+
+ /* Alias NOT (predicate) is EOR Pd.B, Pg/Z, Pn.B, Pg.B */
+ if (!a->s && a->pg == a->rm) {
+ return gen_gvec_fn_ppp(s, tcg_gen_gvec_andc, a->rd, a->pg, a->rn);
+ }
return do_pppp_flags(s, a, &op);
}