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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org
Subject: [PATCH v4 15/78] target/arm: Implement SVE2 bitwise shift left long
Date: Tue,  9 Mar 2021 08:19:38 -0800	[thread overview]
Message-ID: <20210309162041.23124-16-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210309162041.23124-1-richard.henderson@linaro.org>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper-sve.h    |   8 ++
 target/arm/sve.decode      |   8 ++
 target/arm/sve_helper.c    |  26 ++++++
 target/arm/translate-sve.c | 159 +++++++++++++++++++++++++++++++++++++
 4 files changed, 201 insertions(+)

diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index bf3e533eb4..740939e7a8 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -2364,3 +2364,11 @@ DEF_HELPER_FLAGS_4(sve2_umull_zzz_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 
 DEF_HELPER_FLAGS_4(sve2_pmull_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
 DEF_HELPER_FLAGS_4(sve2_pmull_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(sve2_sshll_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(sve2_sshll_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(sve2_sshll_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(sve2_ushll_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(sve2_ushll_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(sve2_ushll_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 016c15ebb6..a3191eba7b 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -1207,3 +1207,11 @@ SMULLB_zzz      01000101 .. 0 ..... 011 100 ..... .....  @rd_rn_rm
 SMULLT_zzz      01000101 .. 0 ..... 011 101 ..... .....  @rd_rn_rm
 UMULLB_zzz      01000101 .. 0 ..... 011 110 ..... .....  @rd_rn_rm
 UMULLT_zzz      01000101 .. 0 ..... 011 111 ..... .....  @rd_rn_rm
+
+## SVE2 bitwise shift left long
+
+# Note bit23 == 0 is handled by esz > 0 in do_sve2_shll_tb.
+SSHLLB          01000101 .. 0 ..... 1010 00 ..... .....  @rd_rn_tszimm_shl
+SSHLLT          01000101 .. 0 ..... 1010 01 ..... .....  @rd_rn_tszimm_shl
+USHLLB          01000101 .. 0 ..... 1010 10 ..... .....  @rd_rn_tszimm_shl
+USHLLT          01000101 .. 0 ..... 1010 11 ..... .....  @rd_rn_tszimm_shl
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 7877a5bdf5..3e80b612ea 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -625,6 +625,8 @@ DO_ZPZZ(sve2_sqrshl_zpzz_h, int16_t, H1_2, do_sqrshl_h)
 DO_ZPZZ(sve2_sqrshl_zpzz_s, int32_t, H1_4, do_sqrshl_s)
 DO_ZPZZ_D(sve2_sqrshl_zpzz_d, int64_t, do_sqrshl_d)
 
+#undef do_sqrshl_d
+
 #define do_uqrshl_b(n, m) \
    ({ uint32_t discard; do_uqrshl_bhs(n, (int8_t)m, 8, true, &discard); })
 #define do_uqrshl_h(n, m) \
@@ -639,6 +641,8 @@ DO_ZPZZ(sve2_uqrshl_zpzz_h, uint16_t, H1_2, do_uqrshl_h)
 DO_ZPZZ(sve2_uqrshl_zpzz_s, uint32_t, H1_4, do_uqrshl_s)
 DO_ZPZZ_D(sve2_uqrshl_zpzz_d, uint64_t, do_uqrshl_d)
 
+#undef do_uqrshl_d
+
 #define DO_HADD_BHS(n, m)  (((int64_t)n + m) >> 1)
 #define DO_HADD_D(n, m)    ((n >> 1) + (m >> 1) + (n & m & 1))
 
@@ -1217,6 +1221,28 @@ DO_ZZZ_WTB(sve2_usubw_d, uint64_t, uint32_t,     , H1_4, DO_SUB)
 
 #undef DO_ZZZ_WTB
 
+#define DO_ZZI_SHLL(NAME, TYPEW, TYPEN, HW, HN) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc)           \
+{                                                              \
+    intptr_t i, opr_sz = simd_oprsz(desc);                     \
+    intptr_t sel = (simd_data(desc) & 1) * sizeof(TYPEN);      \
+    int shift = simd_data(desc) >> 1;                          \
+    for (i = 0; i < opr_sz; i += sizeof(TYPEW)) {              \
+        TYPEW nn = *(TYPEN *)(vn + HN(i + sel));               \
+        *(TYPEW *)(vd + HW(i)) = nn << shift;                  \
+    }                                                          \
+}
+
+DO_ZZI_SHLL(sve2_sshll_h, int16_t, int8_t, H1_2, H1)
+DO_ZZI_SHLL(sve2_sshll_s, int32_t, int16_t, H1_4, H1_2)
+DO_ZZI_SHLL(sve2_sshll_d, int64_t, int32_t,     , H1_4)
+
+DO_ZZI_SHLL(sve2_ushll_h, uint16_t, uint8_t, H1_2, H1)
+DO_ZZI_SHLL(sve2_ushll_s, uint32_t, uint16_t, H1_4, H1_2)
+DO_ZZI_SHLL(sve2_ushll_d, uint64_t, uint32_t,     , H1_4)
+
+#undef DO_ZZI_SHLL
+
 /* Two-operand reduction expander, controlled by a predicate.
  * The difference between TYPERED and TYPERET has to do with
  * sign-extension.  E.g. for SMAX, TYPERED must be signed,
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 260337d111..0f8686d47e 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -6072,3 +6072,162 @@ DO_SVE2_ZZZ_WTB(UADDWB, uaddw, false)
 DO_SVE2_ZZZ_WTB(UADDWT, uaddw, true)
 DO_SVE2_ZZZ_WTB(USUBWB, usubw, false)
 DO_SVE2_ZZZ_WTB(USUBWT, usubw, true)
+
+static void gen_sshll_vec(unsigned vece, TCGv_vec d, TCGv_vec n, int64_t imm)
+{
+    int top = imm & 1;
+    int shl = imm >> 1;
+    int halfbits = 4 << vece;
+
+    if (top) {
+        if (shl == halfbits) {
+            TCGv_vec t = tcg_temp_new_vec_matching(d);
+            tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(halfbits, halfbits));
+            tcg_gen_and_vec(vece, d, n, t);
+            tcg_temp_free_vec(t);
+        } else {
+            tcg_gen_sari_vec(vece, d, n, halfbits);
+            tcg_gen_shli_vec(vece, d, d, shl);
+        }
+    } else {
+        tcg_gen_shli_vec(vece, d, n, halfbits);
+        tcg_gen_sari_vec(vece, d, d, halfbits - shl);
+    }
+}
+
+static void gen_ushll_i64(unsigned vece, TCGv_i64 d, TCGv_i64 n, int imm)
+{
+    int halfbits = 4 << vece;
+    int top = imm & 1;
+    int shl = (imm >> 1);
+    int shift;
+    uint64_t mask;
+
+    mask = MAKE_64BIT_MASK(0, halfbits);
+    mask <<= shl;
+    mask = dup_const(vece, mask);
+
+    shift = shl - top * halfbits;
+    if (shift < 0) {
+        tcg_gen_shri_i64(d, n, -shift);
+    } else {
+        tcg_gen_shri_i64(d, n, shift);
+    }
+    tcg_gen_andi_i64(d, d, mask);
+}
+
+static void gen_ushll16_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm)
+{
+    gen_ushll_i64(MO_16, d, n, imm);
+}
+
+static void gen_ushll32_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm)
+{
+    gen_ushll_i64(MO_32, d, n, imm);
+}
+
+static void gen_ushll64_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm)
+{
+    gen_ushll_i64(MO_64, d, n, imm);
+}
+
+static void gen_ushll_vec(unsigned vece, TCGv_vec d, TCGv_vec n, int64_t imm)
+{
+    int halfbits = 4 << vece;
+    int top = imm & 1;
+    int shl = imm >> 1;
+
+    if (top) {
+        if (shl == halfbits) {
+            TCGv_vec t = tcg_temp_new_vec_matching(d);
+            tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(halfbits, halfbits));
+            tcg_gen_and_vec(vece, d, n, t);
+            tcg_temp_free_vec(t);
+        } else {
+            tcg_gen_shri_vec(vece, d, n, halfbits);
+            tcg_gen_shli_vec(vece, d, d, shl);
+        }
+    } else {
+        if (shl == 0) {
+            TCGv_vec t = tcg_temp_new_vec_matching(d);
+            tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(0, halfbits));
+            tcg_gen_and_vec(vece, d, n, t);
+            tcg_temp_free_vec(t);
+        } else {
+            tcg_gen_shli_vec(vece, d, n, halfbits);
+            tcg_gen_shri_vec(vece, d, d, halfbits - shl);
+        }
+    }
+}
+
+static bool do_sve2_shll_tb(DisasContext *s, arg_rri_esz *a,
+                            bool sel, bool uns)
+{
+    static const TCGOpcode sshll_list[] = {
+        INDEX_op_shli_vec, INDEX_op_sari_vec, 0
+    };
+    static const TCGOpcode ushll_list[] = {
+        INDEX_op_shli_vec, INDEX_op_shri_vec, 0
+    };
+    static const GVecGen2i ops[2][3] = {
+        { { .fniv = gen_sshll_vec,
+            .opt_opc = sshll_list,
+            .fno = gen_helper_sve2_sshll_h,
+            .vece = MO_16 },
+          { .fniv = gen_sshll_vec,
+            .opt_opc = sshll_list,
+            .fno = gen_helper_sve2_sshll_s,
+            .vece = MO_32 },
+          { .fniv = gen_sshll_vec,
+            .opt_opc = sshll_list,
+            .fno = gen_helper_sve2_sshll_d,
+            .vece = MO_64 } },
+        { { .fni8 = gen_ushll16_i64,
+            .fniv = gen_ushll_vec,
+            .opt_opc = ushll_list,
+            .fno = gen_helper_sve2_ushll_h,
+            .vece = MO_16 },
+          { .fni8 = gen_ushll32_i64,
+            .fniv = gen_ushll_vec,
+            .opt_opc = ushll_list,
+            .fno = gen_helper_sve2_ushll_s,
+            .vece = MO_32 },
+          { .fni8 = gen_ushll64_i64,
+            .fniv = gen_ushll_vec,
+            .opt_opc = ushll_list,
+            .fno = gen_helper_sve2_ushll_d,
+            .vece = MO_64 } },
+    };
+
+    if (a->esz < 0 || a->esz > 2 || !dc_isar_feature(aa64_sve2, s)) {
+        return false;
+    }
+    if (sve_access_check(s)) {
+        unsigned vsz = vec_full_reg_size(s);
+        tcg_gen_gvec_2i(vec_full_reg_offset(s, a->rd),
+                        vec_full_reg_offset(s, a->rn),
+                        vsz, vsz, (a->imm << 1) | sel,
+                        &ops[uns][a->esz]);
+    }
+    return true;
+}
+
+static bool trans_SSHLLB(DisasContext *s, arg_rri_esz *a)
+{
+    return do_sve2_shll_tb(s, a, false, false);
+}
+
+static bool trans_SSHLLT(DisasContext *s, arg_rri_esz *a)
+{
+    return do_sve2_shll_tb(s, a, true, false);
+}
+
+static bool trans_USHLLB(DisasContext *s, arg_rri_esz *a)
+{
+    return do_sve2_shll_tb(s, a, false, true);
+}
+
+static bool trans_USHLLT(DisasContext *s, arg_rri_esz *a)
+{
+    return do_sve2_shll_tb(s, a, true, true);
+}
-- 
2.25.1



  parent reply	other threads:[~2021-03-09 17:46 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-09 16:19 [PATCH v4 00/78] target/arm: Implement SVE2 Richard Henderson
2021-03-09 16:19 ` [PATCH v4 01/78] target/arm: Add ID_AA64ZFR0 fields and isar_feature_aa64_sve2 Richard Henderson
2021-03-09 16:19 ` [PATCH v4 02/78] target/arm: Implement SVE2 Integer Multiply - Unpredicated Richard Henderson
2021-03-09 16:19 ` [PATCH v4 03/78] target/arm: Implement SVE2 integer pairwise add and accumulate long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 04/78] target/arm: Implement SVE2 integer unary operations (predicated) Richard Henderson
2021-03-09 16:19 ` [PATCH v4 05/78] target/arm: Split out saturating/rounding shifts from neon Richard Henderson
2021-03-09 16:19 ` [PATCH v4 06/78] target/arm: Implement SVE2 saturating/rounding bitwise shift left (predicated) Richard Henderson
2021-03-09 16:19 ` [PATCH v4 07/78] target/arm: Implement SVE2 integer halving add/subtract (predicated) Richard Henderson
2021-03-09 16:19 ` [PATCH v4 08/78] target/arm: Implement SVE2 integer pairwise arithmetic Richard Henderson
2021-03-09 16:19 ` [PATCH v4 09/78] target/arm: Implement SVE2 saturating add/subtract (predicated) Richard Henderson
2021-03-09 16:19 ` [PATCH v4 10/78] target/arm: Implement SVE2 integer add/subtract long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 11/78] target/arm: Implement SVE2 integer add/subtract interleaved long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 12/78] target/arm: Implement SVE2 integer add/subtract wide Richard Henderson
2021-03-09 16:19 ` [PATCH v4 13/78] target/arm: Implement SVE2 integer multiply long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 14/78] target/arm: Implement PMULLB and PMULLT Richard Henderson
2021-03-09 16:19 ` Richard Henderson [this message]
2021-03-09 16:19 ` [PATCH v4 16/78] target/arm: Implement SVE2 bitwise exclusive-or interleaved Richard Henderson
2021-03-09 16:19 ` [PATCH v4 17/78] target/arm: Implement SVE2 bitwise permute Richard Henderson
2021-03-09 16:19 ` [PATCH v4 18/78] target/arm: Implement SVE2 complex integer add Richard Henderson
2021-03-09 16:19 ` [PATCH v4 19/78] target/arm: Implement SVE2 integer absolute difference and accumulate long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 20/78] target/arm: Implement SVE2 integer add/subtract long with carry Richard Henderson
2021-03-09 16:19 ` [PATCH v4 21/78] target/arm: Implement SVE2 bitwise shift right and accumulate Richard Henderson
2021-03-09 16:19 ` [PATCH v4 22/78] target/arm: Implement SVE2 bitwise shift and insert Richard Henderson
2021-03-09 16:19 ` [PATCH v4 23/78] target/arm: Implement SVE2 integer absolute difference and accumulate Richard Henderson
2021-03-09 16:19 ` [PATCH v4 24/78] target/arm: Implement SVE2 saturating extract narrow Richard Henderson
2021-03-09 16:19 ` [PATCH v4 25/78] target/arm: Implement SVE2 floating-point pairwise Richard Henderson
2021-03-09 16:19 ` [PATCH v4 26/78] target/arm: Implement SVE2 SHRN, RSHRN Richard Henderson
2021-03-09 16:19 ` [PATCH v4 27/78] target/arm: Implement SVE2 SQSHRUN, SQRSHRUN Richard Henderson
2021-03-09 16:19 ` [PATCH v4 28/78] target/arm: Implement SVE2 UQSHRN, UQRSHRN Richard Henderson
2021-03-09 16:19 ` [PATCH v4 29/78] target/arm: Implement SVE2 SQSHRN, SQRSHRN Richard Henderson
2021-03-09 16:19 ` [PATCH v4 30/78] target/arm: Implement SVE2 WHILEGT, WHILEGE, WHILEHI, WHILEHS Richard Henderson
2021-03-09 16:19 ` [PATCH v4 31/78] target/arm: Implement SVE2 WHILERW, WHILEWR Richard Henderson
2021-03-09 16:19 ` [PATCH v4 32/78] target/arm: Implement SVE2 bitwise ternary operations Richard Henderson
2021-03-09 16:19 ` [PATCH v4 33/78] target/arm: Implement SVE2 MATCH, NMATCH Richard Henderson
2021-03-09 16:19 ` [PATCH v4 34/78] target/arm: Implement SVE2 saturating multiply-add long Richard Henderson
2021-03-09 16:19 ` [PATCH v4 35/78] target/arm: Implement SVE2 saturating multiply-add high Richard Henderson
2021-03-09 16:19 ` [PATCH v4 36/78] target/arm: Implement SVE2 integer multiply-add long Richard Henderson
2021-03-09 16:20 ` [PATCH v4 37/78] target/arm: Implement SVE2 complex integer multiply-add Richard Henderson
2021-03-09 16:20 ` [PATCH v4 38/78] target/arm: Implement SVE2 ADDHNB, ADDHNT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 39/78] target/arm: Implement SVE2 RADDHNB, RADDHNT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 40/78] target/arm: Implement SVE2 SUBHNB, SUBHNT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 41/78] target/arm: Implement SVE2 RSUBHNB, RSUBHNT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 42/78] target/arm: Implement SVE2 HISTCNT, HISTSEG Richard Henderson
2021-03-09 16:20 ` [PATCH v4 43/78] target/arm: Implement SVE2 XAR Richard Henderson
2021-03-09 16:20 ` [PATCH v4 44/78] target/arm: Implement SVE2 scatter store insns Richard Henderson
2021-03-09 16:20 ` [PATCH v4 45/78] target/arm: Implement SVE2 gather load insns Richard Henderson
2021-03-09 16:20 ` [PATCH v4 46/78] target/arm: Implement SVE2 FMMLA Richard Henderson
2021-03-09 16:20 ` [PATCH v4 47/78] target/arm: Implement SVE2 SPLICE, EXT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 48/78] target/arm: Pass separate addend to {U, S}DOT helpers Richard Henderson
2021-03-09 16:20 ` [PATCH v4 49/78] target/arm: Pass separate addend to FCMLA helpers Richard Henderson
2021-03-09 16:20 ` [PATCH v4 50/78] target/arm: Split out formats for 2 vectors + 1 index Richard Henderson
2021-03-09 16:20 ` [PATCH v4 51/78] target/arm: Split out formats for 3 " Richard Henderson
2021-03-09 16:20 ` [PATCH v4 52/78] target/arm: Implement SVE2 integer multiply (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 53/78] target/arm: Implement SVE2 integer multiply-add (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 54/78] target/arm: Implement SVE2 saturating multiply-add high (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 55/78] target/arm: Implement SVE2 saturating multiply-add (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 56/78] target/arm: Implement SVE2 integer multiply long (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 57/78] target/arm: Implement SVE2 saturating multiply (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 58/78] target/arm: Implement SVE2 signed saturating doubling multiply high Richard Henderson
2021-03-09 16:20 ` [PATCH v4 59/78] target/arm: Implement SVE2 saturating multiply high (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 60/78] target/arm: Implement SVE2 multiply-add long (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 61/78] target/arm: Implement SVE2 complex integer multiply-add (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 62/78] target/arm: Implement SVE mixed sign dot product (indexed) Richard Henderson
2021-03-09 16:20 ` [PATCH v4 63/78] target/arm: Implement SVE mixed sign dot product Richard Henderson
2021-03-09 16:20 ` [PATCH v4 64/78] target/arm: Implement SVE2 crypto unary operations Richard Henderson
2021-03-09 16:20 ` [PATCH v4 65/78] target/arm: Implement SVE2 crypto destructive binary operations Richard Henderson
2021-03-09 16:20 ` [PATCH v4 66/78] target/arm: Implement SVE2 crypto constructive " Richard Henderson
2021-03-09 16:20 ` [PATCH v4 67/78] target/arm: Implement SVE2 TBL, TBX Richard Henderson
2021-03-09 16:20 ` [PATCH v4 68/78] target/arm: Implement SVE2 FCVTNT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 69/78] target/arm: Implement SVE2 FCVTLT Richard Henderson
2021-03-09 16:20 ` [PATCH v4 70/78] target/arm: Implement SVE2 FCVTXNT, FCVTX Richard Henderson
2021-03-09 16:20 ` [PATCH v4 71/78] target/arm: Implement SVE2 FLOGB Richard Henderson
2021-03-09 16:20 ` [PATCH v4 72/78] target/arm: Share table of sve load functions Richard Henderson
2021-03-09 16:20 ` [PATCH v4 73/78] target/arm: Implement SVE2 LD1RO Richard Henderson
2021-03-09 16:20 ` [PATCH v4 74/78] target/arm: Implement 128-bit ZIP, UZP, TRN Richard Henderson
2021-03-09 16:20 ` [PATCH v4 75/78] target/arm: Implement SVE2 bitwise shift immediate Richard Henderson
2021-03-09 16:20 ` [PATCH v4 76/78] target/arm: Implement SVE2 fp multiply-add long Richard Henderson
2021-03-09 16:20 ` [PATCH v4 77/78] target/arm: Implement SVE2 complex integer dot product Richard Henderson
2021-03-09 16:20 ` [PATCH v4 78/78] target/arm: Enable SVE2 and some extensions Richard Henderson
2021-03-09 19:28 ` [PATCH v4 00/78] target/arm: Implement SVE2 no-reply
2021-03-10 20:17 ` Peter Maydell
2021-03-11  2:33   ` Richard Henderson

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