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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Subject: [PATCH for-6.2 27/34] target/arm: Implement MVE VQABS, VQNEG
Date: Tue, 13 Jul 2021 14:37:19 +0100	[thread overview]
Message-ID: <20210713133726.26842-28-peter.maydell@linaro.org> (raw)
In-Reply-To: <20210713133726.26842-1-peter.maydell@linaro.org>

Implement the MVE 1-operand saturating operations VQABS and VQNEG.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/helper-mve.h    |  8 ++++++++
 target/arm/mve.decode      |  3 +++
 target/arm/mve_helper.c    | 37 +++++++++++++++++++++++++++++++++++++
 target/arm/translate-mve.c |  2 ++
 4 files changed, 50 insertions(+)

diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index e61c5d56f41..69f0474f6a3 100644
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -80,6 +80,14 @@ DEF_HELPER_FLAGS_3(mve_vnegw, TCG_CALL_NO_WG, void, env, ptr, ptr)
 DEF_HELPER_FLAGS_3(mve_vfnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
 DEF_HELPER_FLAGS_3(mve_vfnegs, TCG_CALL_NO_WG, void, env, ptr, ptr)
 
+DEF_HELPER_FLAGS_3(mve_vqabsb, TCG_CALL_NO_WG, void, env, ptr, ptr)
+DEF_HELPER_FLAGS_3(mve_vqabsh, TCG_CALL_NO_WG, void, env, ptr, ptr)
+DEF_HELPER_FLAGS_3(mve_vqabsw, TCG_CALL_NO_WG, void, env, ptr, ptr)
+
+DEF_HELPER_FLAGS_3(mve_vqnegb, TCG_CALL_NO_WG, void, env, ptr, ptr)
+DEF_HELPER_FLAGS_3(mve_vqnegh, TCG_CALL_NO_WG, void, env, ptr, ptr)
+DEF_HELPER_FLAGS_3(mve_vqnegw, TCG_CALL_NO_WG, void, env, ptr, ptr)
+
 DEF_HELPER_FLAGS_3(mve_vmovnbb, TCG_CALL_NO_WG, void, env, ptr, ptr)
 DEF_HELPER_FLAGS_3(mve_vmovnbh, TCG_CALL_NO_WG, void, env, ptr, ptr)
 DEF_HELPER_FLAGS_3(mve_vmovntb, TCG_CALL_NO_WG, void, env, ptr, ptr)
diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index 99cea8d39b6..1d38dd8dba3 100644
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -279,6 +279,9 @@ VABS_fp          1111 1111 1 . 11 .. 01 ... 0 0111 01 . 0 ... 0 @1op
 VNEG             1111 1111 1 . 11 .. 01 ... 0 0011 11 . 0 ... 0 @1op
 VNEG_fp          1111 1111 1 . 11 .. 01 ... 0 0111 11 . 0 ... 0 @1op
 
+VQABS            1111 1111 1 . 11 .. 00 ... 0 0111 01 . 0 ... 0 @1op
+VQNEG            1111 1111 1 . 11 .. 00 ... 0 0111 11 . 0 ... 0 @1op
+
 &vdup qd rt size
 # Qd is in the fields usually named Qn
 @vdup            .... .... . . .. ... . rt:4 .... . . . . .... qd=%qn &vdup
diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c
index 1013060baeb..3b3695885ef 100644
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -2213,3 +2213,40 @@ void HELPER(mve_vpsel)(CPUARMState *env, void *vd, void *vn, void *vm)
     }
     mve_advance_vpt(env);
 }
+
+#define DO_1OP_SAT(OP, ESIZE, TYPE, FN)                                 \
+    void HELPER(mve_##OP)(CPUARMState *env, void *vd, void *vm)         \
+    {                                                                   \
+        TYPE *d = vd, *m = vm;                                          \
+        uint16_t mask = mve_element_mask(env);                          \
+        unsigned e;                                                     \
+        bool qc = false;                                                \
+        for (e = 0; e < 16 / ESIZE; e++, mask >>= ESIZE) {              \
+            bool sat = false;                                           \
+            mergemask(&d[H##ESIZE(e)], FN(m[H##ESIZE(e)], &sat), mask); \
+            qc |= sat & mask & 1;                                       \
+        }                                                               \
+        if (qc) {                                                       \
+            env->vfp.qc[0] = qc;                                        \
+        }                                                               \
+        mve_advance_vpt(env);                                           \
+    }
+
+#define DO_VQABS_B(N, SATP) \
+    do_sat_bhs(DO_ABS((int64_t)N), INT8_MIN, INT8_MAX, SATP)
+#define DO_VQABS_H(N, SATP) \
+    do_sat_bhs(DO_ABS((int64_t)N), INT16_MIN, INT16_MAX, SATP)
+#define DO_VQABS_W(N, SATP) \
+    do_sat_bhs(DO_ABS((int64_t)N), INT32_MIN, INT32_MAX, SATP)
+
+#define DO_VQNEG_B(N, SATP) do_sat_bhs(-(int64_t)N, INT8_MIN, INT8_MAX, SATP)
+#define DO_VQNEG_H(N, SATP) do_sat_bhs(-(int64_t)N, INT16_MIN, INT16_MAX, SATP)
+#define DO_VQNEG_W(N, SATP) do_sat_bhs(-(int64_t)N, INT32_MIN, INT32_MAX, SATP)
+
+DO_1OP_SAT(vqabsb, 1, int8_t, DO_VQABS_B)
+DO_1OP_SAT(vqabsh, 2, int16_t, DO_VQABS_H)
+DO_1OP_SAT(vqabsw, 4, int32_t, DO_VQABS_W)
+
+DO_1OP_SAT(vqnegb, 1, int8_t, DO_VQNEG_B)
+DO_1OP_SAT(vqnegh, 2, int16_t, DO_VQNEG_H)
+DO_1OP_SAT(vqnegw, 4, int32_t, DO_VQNEG_W)
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index f8b34c9ef36..59e09f58a8c 100644
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -275,6 +275,8 @@ DO_1OP(VCLZ, vclz)
 DO_1OP(VCLS, vcls)
 DO_1OP(VABS, vabs)
 DO_1OP(VNEG, vneg)
+DO_1OP(VQABS, vqabs)
+DO_1OP(VQNEG, vqneg)
 
 /* Narrowing moves: only size 0 and 1 are valid */
 #define DO_VMOVN(INSN, FN) \
-- 
2.20.1



  parent reply	other threads:[~2021-07-13 13:57 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-13 13:36 [PATCH for-6.2 00/34] target/arm: Third slice of MVE implementation Peter Maydell
2021-07-13 13:36 ` [PATCH for-6.2 01/34] target/arm: Note that we handle VMOVL as a special case of VSHLL Peter Maydell
2021-07-14 17:02   ` Richard Henderson
2021-07-13 13:36 ` [PATCH for-6.2 02/34] target/arm: Print MVE VPR in CPU dumps Peter Maydell
2021-07-15  1:34   ` Richard Henderson
2021-07-13 13:36 ` [PATCH for-6.2 03/34] target/arm: Fix MVE VSLI by 0 and VSRI by <dt> Peter Maydell
2021-07-16 16:27   ` Richard Henderson
2021-07-13 13:36 ` [PATCH for-6.2 04/34] target/arm: Fix signed VADDV Peter Maydell
2021-07-15  1:37   ` Richard Henderson
2021-07-13 13:36 ` [PATCH for-6.2 05/34] target/arm: Fix mask handling for MVE narrowing operations Peter Maydell
2021-07-16 16:29   ` Richard Henderson
2021-07-13 13:36 ` [PATCH for-6.2 06/34] target/arm: Fix 48-bit saturating shifts Peter Maydell
2021-07-16 16:34   ` Richard Henderson
2021-07-16 16:39     ` Peter Maydell
2021-07-13 13:36 ` [PATCH for-6.2 07/34] target/arm: Fix calculation of LTP mask when LR is 0 Peter Maydell
2021-07-16 16:35   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 08/34] target/arm: Fix VPT advance when ECI is non-zero Peter Maydell
2021-07-16 16:44   ` Richard Henderson
2021-07-16 16:58   ` Richard Henderson
2021-07-19 14:16     ` Peter Maydell
2021-07-13 13:37 ` [PATCH for-6.2 09/34] target/arm: Factor out mve_eci_mask() Peter Maydell
2021-07-16 16:48   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 10/34] target/arm: Fix VLDRB/H/W for predicated elements Peter Maydell
2021-07-16 16:58   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 11/34] target/arm: Implement MVE VMULL (polynomial) Peter Maydell
2021-07-16 17:14   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 12/34] target/arm: Implement MVE incrementing/decrementing dup insns Peter Maydell
2021-07-16 19:57   ` Richard Henderson
2021-07-19 14:25     ` Peter Maydell
2021-07-13 13:37 ` [PATCH for-6.2 13/34] target/arm: Factor out gen_vpst() Peter Maydell
2021-07-16 21:04   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 14/34] target/arm: Implement MVE integer vector comparisons Peter Maydell
2021-07-16 21:55   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 15/34] target/arm: Implement MVE integer vector-vs-scalar comparisons Peter Maydell
2021-07-16 21:58   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 16/34] target/arm: Implement MVE VPSEL Peter Maydell
2021-07-16 22:03   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 17/34] target/arm: Implement MVE VMLAS Peter Maydell
2021-07-16 22:11   ` Richard Henderson
2021-07-17 10:06     ` Peter Maydell
2021-07-17 20:40       ` Richard Henderson
2021-07-20 10:13         ` Peter Maydell
2021-07-13 13:37 ` [PATCH for-6.2 18/34] target/arm: Implement MVE shift-by-scalar Peter Maydell
2021-07-16 22:15   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 19/34] target/arm: Move 'x' and 'a' bit definitions into vmlaldav formats Peter Maydell
2021-07-16 22:16   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 20/34] target/arm: Implement MVE integer min/max across vector Peter Maydell
2021-07-17 20:46   ` Richard Henderson
2021-07-19 15:28     ` Peter Maydell
2021-07-20 18:21       ` Peter Maydell
2021-07-13 13:37 ` [PATCH for-6.2 21/34] target/arm: Implement MVE VABAV Peter Maydell
2021-07-17 20:50   ` Richard Henderson
2021-07-17 22:13     ` Peter Maydell
2021-07-17 22:18       ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 22/34] target/arm: Implement MVE narrowing moves Peter Maydell
2021-07-21 21:45   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 23/34] target/arm: Rename MVEGenDualAccOpFn to MVEGenLongDualAccOpFn Peter Maydell
2021-07-21 21:45   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 24/34] target/arm: Implement MVE VMLADAV and VMLSLDAV Peter Maydell
2021-07-21 22:01   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 25/34] target/arm: Implement MVE VMLA Peter Maydell
2021-07-21 22:03   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 26/34] target/arm: Implement MVE saturating doubling multiply accumulates Peter Maydell
2021-07-21 22:07   ` Richard Henderson
2021-07-13 13:37 ` Peter Maydell [this message]
2021-07-21 22:09   ` [PATCH for-6.2 27/34] target/arm: Implement MVE VQABS, VQNEG Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 28/34] target/arm: Implement MVE VMAXA, VMINA Peter Maydell
2021-07-21 22:12   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 29/34] target/arm: Implement MVE VMOV to/from 2 general-purpose registers Peter Maydell
2021-07-21 22:20   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 30/34] target/arm: Implement MVE VPNOT Peter Maydell
2021-07-21 22:24   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 31/34] target/arm: Implement MVE VCTP Peter Maydell
2021-07-21 22:33   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 32/34] target/arm: Implement MVE scatter-gather insns Peter Maydell
2021-07-22  0:36   ` Richard Henderson
2021-07-22  8:42     ` Peter Maydell
2021-07-13 13:37 ` [PATCH for-6.2 33/34] target/arm: Implement MVE scatter-gather immediate forms Peter Maydell
2021-07-22  0:49   ` Richard Henderson
2021-07-13 13:37 ` [PATCH for-6.2 34/34] target/arm: Implement MVE interleaving loads/stores Peter Maydell
2021-07-22 17:52   ` Richard Henderson

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