From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: rajav@quicinc.com, qemu-arm@nongnu.org, apazos@quicinc.com
Subject: [PATCH 30/31] target/arm: Vectorize SABA/UABA
Date: Thu, 26 Mar 2020 16:08:37 -0700 [thread overview]
Message-ID: <20200326230838.31112-31-richard.henderson@linaro.org> (raw)
In-Reply-To: <20200326230838.31112-1-richard.henderson@linaro.org>
Include 64-bit element size in preparation for SVE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/helper.h | 17 +++--
target/arm/translate.h | 5 ++
target/arm/neon_helper.c | 10 ---
target/arm/translate-a64.c | 17 ++---
target/arm/translate.c | 134 +++++++++++++++++++++++++++++++++++--
target/arm/vec_helper.c | 88 ++++++++++++++++++++++++
6 files changed, 238 insertions(+), 33 deletions(-)
diff --git a/target/arm/helper.h b/target/arm/helper.h
index 97ccbd70c6..5cf6a5b4a0 100644
--- a/target/arm/helper.h
+++ b/target/arm/helper.h
@@ -299,13 +299,6 @@ DEF_HELPER_2(neon_pmax_s8, i32, i32, i32)
DEF_HELPER_2(neon_pmax_u16, i32, i32, i32)
DEF_HELPER_2(neon_pmax_s16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u8, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s8, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s16, i32, i32, i32)
-DEF_HELPER_2(neon_abd_u32, i32, i32, i32)
-DEF_HELPER_2(neon_abd_s32, i32, i32, i32)
-
DEF_HELPER_2(neon_shl_u16, i32, i32, i32)
DEF_HELPER_2(neon_shl_s16, i32, i32, i32)
DEF_HELPER_2(neon_rshl_u8, i32, i32, i32)
@@ -758,6 +751,16 @@ DEF_HELPER_FLAGS_4(gvec_uabd_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(gvec_uabd_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_4(gvec_uabd_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_saba_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_4(gvec_uaba_b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(gvec_uaba_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32)
+
#ifdef TARGET_AARCH64
#include "helper-a64.h"
#include "helper-sve.h"
diff --git a/target/arm/translate.h b/target/arm/translate.h
index c453aa1c47..0df7ce51b2 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -316,6 +316,11 @@ void arm_gen_gvec_sabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
void arm_gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void arm_gen_gvec_saba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+void arm_gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz);
+
/*
* Forward to the isar_feature_* tests given a DisasContext pointer.
*/
diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c
index e6481a5764..4c1cf1e031 100644
--- a/target/arm/neon_helper.c
+++ b/target/arm/neon_helper.c
@@ -595,16 +595,6 @@ NEON_POP(pmax_s16, neon_s16, 2)
NEON_POP(pmax_u16, neon_u16, 2)
#undef NEON_FN
-#define NEON_FN(dest, src1, src2) \
- dest = (src1 > src2) ? (src1 - src2) : (src2 - src1)
-NEON_VOP(abd_s8, neon_s8, 4)
-NEON_VOP(abd_u8, neon_u8, 4)
-NEON_VOP(abd_s16, neon_s16, 2)
-NEON_VOP(abd_u16, neon_u16, 2)
-NEON_VOP(abd_s32, neon_s32, 1)
-NEON_VOP(abd_u32, neon_u32, 1)
-#undef NEON_FN
-
#define NEON_FN(dest, src1, src2) \
(dest = do_uqrshl_bhs(src1, src2, 16, false, NULL))
NEON_VOP(shl_u16, neon_u16, 2)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 1791c26a39..d830a58c3f 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -12166,6 +12166,13 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
gen_gvec_fn3(s, is_q, rd, rn, rm, arm_gen_gvec_sabd, size);
}
return;
+ case 0xf: /* SABA, UABA */
+ if (u) {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, arm_gen_gvec_uaba, size);
+ } else {
+ gen_gvec_fn3(s, is_q, rd, rn, rm, arm_gen_gvec_saba, size);
+ }
+ return;
case 0x10: /* ADD, SUB */
if (u) {
gen_gvec_fn3(s, is_q, rd, rn, rm, tcg_gen_gvec_sub, size);
@@ -12298,16 +12305,6 @@ static void disas_simd_3same_int(DisasContext *s, uint32_t insn)
genenvfn = fns[size][u];
break;
}
- case 0xf: /* SABA, UABA */
- {
- static NeonGenTwoOpFn * const fns[3][2] = {
- { gen_helper_neon_abd_s8, gen_helper_neon_abd_u8 },
- { gen_helper_neon_abd_s16, gen_helper_neon_abd_u16 },
- { gen_helper_neon_abd_s32, gen_helper_neon_abd_u32 },
- };
- genfn = fns[size][u];
- break;
- }
case 0x16: /* SQDMULH, SQRDMULH */
{
static NeonGenTwoOpEnvFn * const fns[2][2] = {
diff --git a/target/arm/translate.c b/target/arm/translate.c
index a29868976a..4491ab0eb0 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -4969,6 +4969,124 @@ void arm_gen_gvec_uabd(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
}
+static void gen_saba_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+ gen_sabd_i32(t, a, b);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_saba_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+ gen_sabd_i64(t, a, b);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_saba_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ gen_sabd_vec(vece, t, a, b);
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void arm_gen_gvec_saba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_add_vec,
+ INDEX_op_smin_vec, INDEX_op_smax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_saba_i32,
+ .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_saba_i64,
+ .fniv = gen_saba_vec,
+ .fno = gen_helper_gvec_saba_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
+static void gen_uaba_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b)
+{
+ TCGv_i32 t = tcg_temp_new_i32();
+ gen_uabd_i32(t, a, b);
+ tcg_gen_add_i32(d, d, t);
+ tcg_temp_free_i32(t);
+}
+
+static void gen_uaba_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ TCGv_i64 t = tcg_temp_new_i64();
+ gen_uabd_i64(t, a, b);
+ tcg_gen_add_i64(d, d, t);
+ tcg_temp_free_i64(t);
+}
+
+static void gen_uaba_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
+{
+ TCGv_vec t = tcg_temp_new_vec_matching(d);
+ gen_uabd_vec(vece, t, a, b);
+ tcg_gen_add_vec(vece, d, d, t);
+ tcg_temp_free_vec(t);
+}
+
+void arm_gen_gvec_uaba(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,
+ uint32_t rm_ofs, uint32_t opr_sz, uint32_t max_sz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_sub_vec, INDEX_op_add_vec,
+ INDEX_op_umin_vec, INDEX_op_umax_vec, 0
+ };
+ static const GVecGen3 ops[4] = {
+ { .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_b,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_8 },
+ { .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_h,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_16 },
+ { .fni4 = gen_uaba_i32,
+ .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_s,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_32 },
+ { .fni8 = gen_uaba_i64,
+ .fniv = gen_uaba_vec,
+ .fno = gen_helper_gvec_uaba_d,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .opt_opc = vecop_list,
+ .load_dest = true,
+ .vece = MO_64 },
+ };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, opr_sz, max_sz, &ops[vece]);
+}
+
/* Translate a NEON data processing instruction. Return nonzero if the
instruction is invalid.
We process data in a mixture of 32-bit and 64-bit chunks.
@@ -5237,6 +5355,16 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
vec_size, vec_size);
}
return 0;
+
+ case NEON_3R_VABA:
+ if (u) {
+ arm_gen_gvec_uaba(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ } else {
+ arm_gen_gvec_saba(size, rd_ofs, rn_ofs, rm_ofs,
+ vec_size, vec_size);
+ }
+ return 0;
}
if (size == 3) {
@@ -5367,12 +5495,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_VQRSHL:
GEN_NEON_INTEGER_OP_ENV(qrshl);
break;
- case NEON_3R_VABA:
- GEN_NEON_INTEGER_OP(abd);
- tcg_temp_free_i32(tmp2);
- tmp2 = neon_load_reg(rd, pass);
- gen_neon_add(size, tmp, tmp2);
- break;
case NEON_3R_VPMAX:
GEN_NEON_INTEGER_OP(pmax);
break;
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index e0694c16f4..cbd0382c71 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -1580,3 +1580,91 @@ void HELPER(gvec_uabd_d)(void *vd, void *vn, void *vm, uint32_t desc)
}
clear_tail(d, opr_sz, simd_maxsz(desc));
}
+
+void HELPER(gvec_saba_b)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ int8_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_saba_h)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ int16_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 2; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_saba_s)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ int32_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 4; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_saba_d)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ int64_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 8; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_uaba_b)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ uint8_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_uaba_h)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ uint16_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 2; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_uaba_s)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ uint32_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 4; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
+
+void HELPER(gvec_uaba_d)(void *vd, void *vn, void *vm, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ uint64_t *d = vd, *n = vn, *m = vm;
+
+ for (i = 0; i < opr_sz / 8; ++i) {
+ d[i] += n[i] < m[i] ? m[i] - n[i] : n[i] - m[i];
+ }
+ clear_tail(d, opr_sz, simd_maxsz(desc));
+}
--
2.20.1
next prev parent reply other threads:[~2020-03-26 23:28 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 23:08 [PATCH for-5.1 00/31] target/arm: SVE2, part 1 Richard Henderson
2020-03-26 23:08 ` [PATCH 01/31] target/arm: Add ID_AA64ZFR0 fields and isar_feature_aa64_sve2 Richard Henderson
2020-04-11 18:45 ` Alex Bennée
2020-03-26 23:08 ` [PATCH 02/31] target/arm: Implement SVE2 Integer Multiply - Unpredicated Richard Henderson
2020-03-26 23:08 ` [PATCH 03/31] target/arm: Implement SVE2 integer pairwise add and accumulate long Richard Henderson
2020-03-26 23:08 ` [PATCH 04/31] target/arm: Remove fp_status from helper_{recpe, rsqrte}_u32 Richard Henderson
2020-03-26 23:08 ` [PATCH 05/31] target/arm: Implement SVE2 integer unary operations (predicated) Richard Henderson
2020-03-26 23:08 ` [PATCH 06/31] target/arm: Split out saturating/rounding shifts from neon Richard Henderson
2020-03-26 23:08 ` [PATCH 07/31] target/arm: Implement SVE2 saturating/rounding bitwise shift left (predicated) Richard Henderson
2020-03-26 23:08 ` [PATCH 08/31] target/arm: Implement SVE2 integer halving add/subtract (predicated) Richard Henderson
2020-03-26 23:08 ` [PATCH 09/31] target/arm: Implement SVE2 integer pairwise arithmetic Richard Henderson
2020-04-13 16:02 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 10/31] target/arm: Implement SVE2 saturating add/subtract (predicated) Richard Henderson
2020-03-26 23:08 ` [PATCH 11/31] target/arm: Implement SVE2 integer add/subtract long Richard Henderson
2020-04-13 16:09 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 12/31] target/arm: Implement SVE2 integer add/subtract interleaved long Richard Henderson
2020-03-26 23:08 ` [PATCH 13/31] target/arm: Implement SVE2 integer add/subtract wide Richard Henderson
2020-04-13 16:11 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 14/31] target/arm: Implement SVE2 integer multiply long Richard Henderson
2020-03-26 23:08 ` [PATCH 15/31] target/arm: Implement PMULLB and PMULLT Richard Henderson
2020-03-26 23:08 ` [PATCH 16/31] target/arm: Tidy SVE tszimm shift formats Richard Henderson
2020-03-26 23:08 ` [PATCH 17/31] target/arm: Implement SVE2 bitwise shift left long Richard Henderson
2020-03-26 23:08 ` [PATCH 18/31] target/arm: Implement SVE2 bitwise exclusive-or interleaved Richard Henderson
2020-03-26 23:08 ` [PATCH 19/31] target/arm: Implement SVE2 bitwise permute Richard Henderson
2020-03-26 23:08 ` [PATCH 20/31] target/arm: Implement SVE2 complex integer add Richard Henderson
2020-04-13 16:20 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 21/31] target/arm: Implement SVE2 integer absolute difference and accumulate long Richard Henderson
2020-04-13 16:15 ` Laurent Desnogues
2020-04-13 23:19 ` Richard Henderson
2020-04-14 7:04 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 22/31] target/arm: Implement SVE2 integer add/subtract long with carry Richard Henderson
2020-04-13 16:18 ` Laurent Desnogues
2020-03-26 23:08 ` [PATCH 23/31] target/arm: Create arm_gen_gvec_[us]sra Richard Henderson
2020-03-26 23:08 ` [PATCH 24/31] target/arm: Create arm_gen_gvec_{u,s}{rshr,rsra} Richard Henderson
2020-03-26 23:08 ` [PATCH 25/31] target/arm: Implement SVE2 bitwise shift right and accumulate Richard Henderson
2020-03-26 23:08 ` [PATCH 26/31] target/arm: Create arm_gen_gvec_{sri,sli} Richard Henderson
2020-03-26 23:08 ` [PATCH 27/31] target/arm: Tidy handle_vec_simd_shri Richard Henderson
2020-03-26 23:08 ` [PATCH 28/31] target/arm: Implement SVE2 bitwise shift and insert Richard Henderson
2020-03-26 23:08 ` [PATCH 29/31] target/arm: Vectorize SABD/UABD Richard Henderson
2020-03-26 23:08 ` Richard Henderson [this message]
2020-03-26 23:08 ` [PATCH 31/31] target/arm: Implement SVE2 integer absolute difference and accumulate Richard Henderson
2020-04-01 21:17 ` [PATCH for-5.1 00/31] target/arm: SVE2, part 1 Ana Pazos
2020-04-22 2:51 ` LIU Zhiwei
2020-04-22 2:55 ` Richard Henderson
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