target/arm: Implement SVE2 ADDHNB, ADDHNT

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stephen Long <steplong@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-39-richard.henderson@linaro.org
Message-Id: <20200417162231.10374-2-steplong@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index d15421845251fbb6fadfff7ff238e53052045ea3..a369fd23919ddb310eb1c31a1d8a412388652046 100644 (file)
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -2509,6 +2509,14 @@ DEF_HELPER_FLAGS_3(sve2_uqrshrnt_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
 DEF_HELPER_FLAGS_3(sve2_uqrshrnt_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
 DEF_HELPER_FLAGS_3(sve2_uqrshrnt_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
 
+DEF_HELPER_FLAGS_4(sve2_addhnb_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_addhnb_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_addhnb_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(sve2_addhnt_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_addhnt_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve2_addhnt_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
 DEF_HELPER_FLAGS_5(sve2_match_ppzz_b, TCG_CALL_NO_RWG,
                    i32, ptr, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_5(sve2_match_ppzz_h, TCG_CALL_NO_RWG,

diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 936977eacbbc6bb116553b034c9efe2a44f821f7..72dd36a5c8a2801c046e55d974df0ec407213750 100644 (file)
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -1320,6 +1320,11 @@ UQSHRNT         01000101 .. 1 ..... 00 1101 ..... .....  @rd_rn_tszimm_shr
 UQRSHRNB        01000101 .. 1 ..... 00 1110 ..... .....  @rd_rn_tszimm_shr
 UQRSHRNT        01000101 .. 1 ..... 00 1111 ..... .....  @rd_rn_tszimm_shr
 
+## SVE2 integer add/subtract narrow high part
+
+ADDHNB          01000101 .. 1 ..... 011 000 ..... .....  @rd_rn_rm
+ADDHNT          01000101 .. 1 ..... 011 001 ..... .....  @rd_rn_rm
+
 ### SVE2 Character Match
 
 MATCH           01000101 .. 1 ..... 100 ... ..... 0 .... @pd_pg_rn_rm

diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 263663cfc4874657b2714ff0dce9ae2d7260df85..df7413f9c9496f5b959fa9ba3293cb115a26e673 100644 (file)
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -2121,6 +2121,42 @@ DO_SHRNT(sve2_uqrshrnt_d, uint64_t, uint32_t,     , H1_4, DO_UQRSHRN_D)
 #undef DO_SHRNB
 #undef DO_SHRNT
 
+#define DO_BINOPNB(NAME, TYPEW, TYPEN, SHIFT, OP)                           \
+void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc)              \
+{                                                                           \
+    intptr_t i, opr_sz = simd_oprsz(desc);                                  \
+    for (i = 0; i < opr_sz; i += sizeof(TYPEW)) {                           \
+        TYPEW nn = *(TYPEW *)(vn + i);                                      \
+        TYPEW mm = *(TYPEW *)(vm + i);                                      \
+        *(TYPEW *)(vd + i) = (TYPEN)OP(nn, mm, SHIFT);                      \
+    }                                                                       \
+}
+
+#define DO_BINOPNT(NAME, TYPEW, TYPEN, SHIFT, HW, HN, OP)                   \
+void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc)              \
+{                                                                           \
+    intptr_t i, opr_sz = simd_oprsz(desc);                                  \
+    for (i = 0; i < opr_sz; i += sizeof(TYPEW)) {                           \
+        TYPEW nn = *(TYPEW *)(vn + HW(i));                                  \
+        TYPEW mm = *(TYPEW *)(vm + HW(i));                                  \
+        *(TYPEN *)(vd + HN(i + sizeof(TYPEN))) = OP(nn, mm, SHIFT);         \
+    }                                                                       \
+}
+
+#define DO_ADDHN(N, M, SH)  ((N + M) >> SH)
+
+DO_BINOPNB(sve2_addhnb_h, uint16_t, uint8_t, 8, DO_ADDHN)
+DO_BINOPNB(sve2_addhnb_s, uint32_t, uint16_t, 16, DO_ADDHN)
+DO_BINOPNB(sve2_addhnb_d, uint64_t, uint32_t, 32, DO_ADDHN)
+
+DO_BINOPNT(sve2_addhnt_h, uint16_t, uint8_t, 8, H1_2, H1, DO_ADDHN)
+DO_BINOPNT(sve2_addhnt_s, uint32_t, uint16_t, 16, H1_4, H1_2, DO_ADDHN)
+DO_BINOPNT(sve2_addhnt_d, uint64_t, uint32_t, 32,     , H1_4, DO_ADDHN)
+
+#undef DO_ADDHN
+
+#undef DO_BINOPNB
+
 /* Fully general four-operand expander, controlled by a predicate.
  */
 #define DO_ZPZZZ(NAME, TYPE, H, OP)                           \

diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 05d9edead4d0cd54a115d2d27c3bdacb217eb4e9..442bf80b82683dd6255dc398d2d1f012e4c38428 100644 (file)
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -7462,6 +7462,19 @@ static bool trans_UQRSHRNT(DisasContext *s, arg_rri_esz *a)
     return do_sve2_shr_narrow(s, a, ops);
 }
 
+#define DO_SVE2_ZZZ_NARROW(NAME, name)                                    \
+static bool trans_##NAME(DisasContext *s, arg_rrr_esz *a)                 \
+{                                                                         \
+    static gen_helper_gvec_3 * const fns[4] = {                           \
+        NULL,                       gen_helper_sve2_##name##_h,           \
+        gen_helper_sve2_##name##_s, gen_helper_sve2_##name##_d,           \
+    };                                                                    \
+    return do_sve2_zzz_ool(s, a, fns[a->esz]);                            \
+}
+
+DO_SVE2_ZZZ_NARROW(ADDHNB, addhnb)
+DO_SVE2_ZZZ_NARROW(ADDHNT, addhnt)
+
 static bool do_sve2_ppzz_flags(DisasContext *s, arg_rprr_esz *a,
                                gen_helper_gvec_flags_4 *fn)
 {