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[PATCH v9 10/61] target/riscv: vector single-width integer add and subtr
|
From: |
LIU Zhiwei |
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Subject: |
[PATCH v9 10/61] target/riscv: vector single-width integer add and subtract |
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Date: |
Wed, 10 Jun 2020 19:36:57 +0800 |
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
target/riscv/helper.h | 25 ++
target/riscv/insn32.decode | 10 +
target/riscv/insn_trans/trans_rvv.inc.c | 291 ++++++++++++++++++++++++
target/riscv/vector_helper.c | 183 +++++++++++++++
4 files changed, 509 insertions(+)
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 70a4b05f75..f791f2dbc6 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -269,3 +269,28 @@ DEF_HELPER_6(vamominw_v_w, void, ptr, ptr, tl, ptr, env,
i32)
DEF_HELPER_6(vamomaxw_v_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vamominuw_v_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vamomaxuw_v_w, void, ptr, ptr, tl, ptr, env, i32)
+
+DEF_HELPER_6(vadd_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vadd_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vadd_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vadd_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vsub_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vsub_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vsub_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vsub_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vadd_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vadd_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vadd_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vadd_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vsub_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vsub_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vsub_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vsub_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrsub_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrsub_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrsub_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrsub_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_FLAGS_4(vec_rsubs8, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vec_rsubs16, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vec_rsubs32, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vec_rsubs64, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 1330703720..d1034a0e61 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -44,6 +44,7 @@
&u imm rd
&shift shamt rs1 rd
&atomic aq rl rs2 rs1 rd
+&rmrr vm rd rs1 rs2
&rwdvm vm wd rd rs1 rs2
&r2nfvm vm rd rs1 nf
&rnfvm vm rd rs1 rs2 nf
@@ -68,6 +69,7 @@
@r2 ....... ..... ..... ... ..... ....... %rs1 %rd
@r2_nfvm ... ... vm:1 ..... ..... ... ..... ....... &r2nfvm %nf %rs1 %rd
@r_nfvm ... ... vm:1 ..... ..... ... ..... ....... &rnfvm %nf %rs2 %rs1 %rd
+@r_vm ...... vm:1 ..... ..... ... ..... ....... &rmrr %rs2 %rs1 %rd
@r_wdvm ..... wd:1 vm:1 ..... ..... ... ..... ....... &rwdvm %rs2 %rs1 %rd
@r2_zimm . zimm:11 ..... ... ..... ....... %rs1 %rd
@@ -275,5 +277,13 @@ vamominuw_v 11000 . . ..... ..... 110 ..... 0101111
@r_wdvm
vamomaxuw_v 11100 . . ..... ..... 110 ..... 0101111 @r_wdvm
# *** new major opcode OP-V ***
+vadd_vv 000000 . ..... ..... 000 ..... 1010111 @r_vm
+vadd_vx 000000 . ..... ..... 100 ..... 1010111 @r_vm
+vadd_vi 000000 . ..... ..... 011 ..... 1010111 @r_vm
+vsub_vv 000010 . ..... ..... 000 ..... 1010111 @r_vm
+vsub_vx 000010 . ..... ..... 100 ..... 1010111 @r_vm
+vrsub_vx 000011 . ..... ..... 100 ..... 1010111 @r_vm
+vrsub_vi 000011 . ..... ..... 011 ..... 1010111 @r_vm
+
vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm
vsetvl 1000000 ..... ..... 111 ..... 1010111 @r
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c
b/target/riscv/insn_trans/trans_rvv.inc.c
index a551139207..79b6cd9b4a 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -772,3 +772,294 @@ GEN_VEXT_TRANS(vamomaxd_v, 15, rwdvm, amo_op, amo_check)
GEN_VEXT_TRANS(vamominud_v, 16, rwdvm, amo_op, amo_check)
GEN_VEXT_TRANS(vamomaxud_v, 17, rwdvm, amo_op, amo_check)
#endif
+
+/*
+ *** Vector Integer Arithmetic Instructions
+ */
+#define MAXSZ(s) (s->vlen >> (3 - s->lmul))
+
+static bool opivv_check(DisasContext *s, arg_rmrr *a)
+{
+ return (vext_check_isa_ill(s) &&
+ vext_check_overlap_mask(s, a->rd, a->vm, false) &&
+ vext_check_reg(s, a->rd, false) &&
+ vext_check_reg(s, a->rs2, false) &&
+ vext_check_reg(s, a->rs1, false));
+}
+
+typedef void GVecGen3Fn(unsigned, uint32_t, uint32_t,
+ uint32_t, uint32_t, uint32_t);
+
+static inline bool
+do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn,
+ gen_helper_gvec_4_ptr *fn)
+{
+ TCGLabel *over = gen_new_label();
+ if (!opivv_check(s, a)) {
+ return false;
+ }
+
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+
+ if (a->vm && s->vl_eq_vlmax) {
+ gvec_fn(s->sew, vreg_ofs(s, a->rd),
+ vreg_ofs(s, a->rs2), vreg_ofs(s, a->rs1),
+ MAXSZ(s), MAXSZ(s));
+ } else {
+ uint32_t data = 0;
+
+ data = FIELD_DP32(data, VDATA, MLEN, s->mlen);
+ data = FIELD_DP32(data, VDATA, VM, a->vm);
+ data = FIELD_DP32(data, VDATA, LMUL, s->lmul);
+ tcg_gen_gvec_4_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0),
+ vreg_ofs(s, a->rs1), vreg_ofs(s, a->rs2),
+ cpu_env, 0, s->vlen / 8, data, fn);
+ }
+ gen_set_label(over);
+ return true;
+}
+
+/* OPIVV with GVEC IR */
+#define GEN_OPIVV_GVEC_TRANS(NAME, SUF) \
+static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \
+{ \
+ static gen_helper_gvec_4_ptr * const fns[4] = { \
+ gen_helper_##NAME##_b, gen_helper_##NAME##_h, \
+ gen_helper_##NAME##_w, gen_helper_##NAME##_d, \
+ }; \
+ return do_opivv_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \
+}
+
+GEN_OPIVV_GVEC_TRANS(vadd_vv, add)
+GEN_OPIVV_GVEC_TRANS(vsub_vv, sub)
+
+typedef void gen_helper_opivx(TCGv_ptr, TCGv_ptr, TCGv, TCGv_ptr,
+ TCGv_env, TCGv_i32);
+
+static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm,
+ gen_helper_opivx *fn, DisasContext *s)
+{
+ TCGv_ptr dest, src2, mask;
+ TCGv src1;
+ TCGv_i32 desc;
+ uint32_t data = 0;
+
+ TCGLabel *over = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+
+ dest = tcg_temp_new_ptr();
+ mask = tcg_temp_new_ptr();
+ src2 = tcg_temp_new_ptr();
+ src1 = tcg_temp_new();
+ gen_get_gpr(src1, rs1);
+
+ data = FIELD_DP32(data, VDATA, MLEN, s->mlen);
+ data = FIELD_DP32(data, VDATA, VM, vm);
+ data = FIELD_DP32(data, VDATA, LMUL, s->lmul);
+ desc = tcg_const_i32(simd_desc(0, s->vlen / 8, data));
+
+ tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd));
+ tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, vs2));
+ tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0));
+
+ fn(dest, mask, src1, src2, cpu_env, desc);
+
+ tcg_temp_free_ptr(dest);
+ tcg_temp_free_ptr(mask);
+ tcg_temp_free_ptr(src2);
+ tcg_temp_free(src1);
+ tcg_temp_free_i32(desc);
+ gen_set_label(over);
+ return true;
+}
+
+static bool opivx_check(DisasContext *s, arg_rmrr *a)
+{
+ return (vext_check_isa_ill(s) &&
+ vext_check_overlap_mask(s, a->rd, a->vm, false) &&
+ vext_check_reg(s, a->rd, false) &&
+ vext_check_reg(s, a->rs2, false));
+}
+
+typedef void GVecGen2sFn(unsigned, uint32_t, uint32_t, TCGv_i64,
+ uint32_t, uint32_t);
+
+static inline bool
+do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn,
+ gen_helper_opivx *fn)
+{
+ if (!opivx_check(s, a)) {
+ return false;
+ }
+
+ if (a->vm && s->vl_eq_vlmax) {
+ TCGv_i64 src1 = tcg_temp_new_i64();
+ TCGv tmp = tcg_temp_new();
+
+ gen_get_gpr(tmp, a->rs1);
+ tcg_gen_ext_tl_i64(src1, tmp);
+ gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
+ src1, MAXSZ(s), MAXSZ(s));
+
+ tcg_temp_free_i64(src1);
+ tcg_temp_free(tmp);
+ return true;
+ }
+ return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s);
+}
+
+/* OPIVX with GVEC IR */
+#define GEN_OPIVX_GVEC_TRANS(NAME, SUF) \
+static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \
+{ \
+ static gen_helper_opivx * const fns[4] = { \
+ gen_helper_##NAME##_b, gen_helper_##NAME##_h, \
+ gen_helper_##NAME##_w, gen_helper_##NAME##_d, \
+ }; \
+ return do_opivx_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \
+}
+
+GEN_OPIVX_GVEC_TRANS(vadd_vx, adds)
+GEN_OPIVX_GVEC_TRANS(vsub_vx, subs)
+
+static void gen_vec_rsub8_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ tcg_gen_vec_sub8_i64(d, b, a);
+}
+
+static void gen_vec_rsub16_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
+{
+ tcg_gen_vec_sub8_i64(d, b, a);
+}
+
+static void gen_rsub_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
+{
+ tcg_gen_sub_i32(ret, arg2, arg1);
+}
+
+static void gen_rsub_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
+{
+ tcg_gen_sub_i64(ret, arg2, arg1);
+}
+
+static void gen_rsub_vec(unsigned vece, TCGv_vec r, TCGv_vec a, TCGv_vec b)
+{
+ tcg_gen_sub_vec(vece, r, b, a);
+}
+
+static void tcg_gen_gvec_rsubs(unsigned vece, uint32_t dofs, uint32_t aofs,
+ TCGv_i64 c, uint32_t oprsz, uint32_t maxsz)
+{
+ static const GVecGen2s rsub_op[4] = {
+ { .fni8 = gen_vec_rsub8_i64,
+ .fniv = gen_rsub_vec,
+ .fno = gen_helper_vec_rsubs8,
+ .vece = MO_8 },
+ { .fni8 = gen_vec_rsub16_i64,
+ .fniv = gen_rsub_vec,
+ .fno = gen_helper_vec_rsubs16,
+ .vece = MO_16 },
+ { .fni4 = gen_rsub_i32,
+ .fniv = gen_rsub_vec,
+ .fno = gen_helper_vec_rsubs32,
+ .vece = MO_32 },
+ { .fni8 = gen_rsub_i64,
+ .fniv = gen_rsub_vec,
+ .fno = gen_helper_vec_rsubs64,
+ .prefer_i64 = TCG_TARGET_REG_BITS == 64,
+ .vece = MO_64 },
+ };
+
+ tcg_debug_assert(vece <= MO_64);
+ tcg_gen_gvec_2s(dofs, aofs, oprsz, maxsz, c, &rsub_op[vece]);
+}
+
+GEN_OPIVX_GVEC_TRANS(vrsub_vx, rsubs)
+
+static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm,
+ gen_helper_opivx *fn, DisasContext *s, int zx)
+{
+ TCGv_ptr dest, src2, mask;
+ TCGv src1;
+ TCGv_i32 desc;
+ uint32_t data = 0;
+
+ TCGLabel *over = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+
+ dest = tcg_temp_new_ptr();
+ mask = tcg_temp_new_ptr();
+ src2 = tcg_temp_new_ptr();
+ if (zx) {
+ src1 = tcg_const_tl(imm);
+ } else {
+ src1 = tcg_const_tl(sextract64(imm, 0, 5));
+ }
+ data = FIELD_DP32(data, VDATA, MLEN, s->mlen);
+ data = FIELD_DP32(data, VDATA, VM, vm);
+ data = FIELD_DP32(data, VDATA, LMUL, s->lmul);
+ desc = tcg_const_i32(simd_desc(0, s->vlen / 8, data));
+
+ tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd));
+ tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, vs2));
+ tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0));
+
+ fn(dest, mask, src1, src2, cpu_env, desc);
+
+ tcg_temp_free_ptr(dest);
+ tcg_temp_free_ptr(mask);
+ tcg_temp_free_ptr(src2);
+ tcg_temp_free(src1);
+ tcg_temp_free_i32(desc);
+ gen_set_label(over);
+ return true;
+}
+
+typedef void GVecGen2iFn(unsigned, uint32_t, uint32_t, int64_t,
+ uint32_t, uint32_t);
+
+static inline bool
+do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn,
+ gen_helper_opivx *fn, int zx)
+{
+ if (!opivx_check(s, a)) {
+ return false;
+ }
+
+ if (a->vm && s->vl_eq_vlmax) {
+ if (zx) {
+ gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
+ extract64(a->rs1, 0, 5), MAXSZ(s), MAXSZ(s));
+ } else {
+ gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2),
+ sextract64(a->rs1, 0, 5), MAXSZ(s), MAXSZ(s));
+ }
+ } else {
+ return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, zx);
+ }
+ return true;
+}
+
+/* OPIVI with GVEC IR */
+#define GEN_OPIVI_GVEC_TRANS(NAME, ZX, OPIVX, SUF) \
+static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \
+{ \
+ static gen_helper_opivx * const fns[4] = { \
+ gen_helper_##OPIVX##_b, gen_helper_##OPIVX##_h, \
+ gen_helper_##OPIVX##_w, gen_helper_##OPIVX##_d, \
+ }; \
+ return do_opivi_gvec(s, a, tcg_gen_gvec_##SUF, \
+ fns[s->sew], ZX); \
+}
+
+GEN_OPIVI_GVEC_TRANS(vadd_vi, 0, vadd_vx, addi)
+
+static void tcg_gen_gvec_rsubi(unsigned vece, uint32_t dofs, uint32_t aofs,
+ int64_t c, uint32_t oprsz, uint32_t maxsz)
+{
+ TCGv_i64 tmp = tcg_const_i64(c);
+ tcg_gen_gvec_rsubs(vece, dofs, aofs, tmp, oprsz, maxsz);
+ tcg_temp_free_i64(tmp);
+}
+
+GEN_OPIVI_GVEC_TRANS(vrsub_vi, 0, vrsub_vx, rsubi)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index b37f1f917d..df7c592526 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -834,3 +834,186 @@ GEN_VEXT_AMO(vamominw_v_w, int32_t, int32_t, idx_w,
clearl)
GEN_VEXT_AMO(vamomaxw_v_w, int32_t, int32_t, idx_w, clearl)
GEN_VEXT_AMO(vamominuw_v_w, uint32_t, uint32_t, idx_w, clearl)
GEN_VEXT_AMO(vamomaxuw_v_w, uint32_t, uint32_t, idx_w, clearl)
+
+/*
+ *** Vector Integer Arithmetic Instructions
+ */
+
+/* expand macro args before macro */
+#define RVVCALL(macro, ...) macro(__VA_ARGS__)
+
+/* (TD, T1, T2, TX1, TX2) */
+#define OP_SSS_B int8_t, int8_t, int8_t, int8_t, int8_t
+#define OP_SSS_H int16_t, int16_t, int16_t, int16_t, int16_t
+#define OP_SSS_W int32_t, int32_t, int32_t, int32_t, int32_t
+#define OP_SSS_D int64_t, int64_t, int64_t, int64_t, int64_t
+
+/* operation of two vector elements */
+typedef void opivv2_fn(void *vd, void *vs1, void *vs2, int i);
+
+#define OPIVV2(NAME, TD, T1, T2, TX1, TX2, HD, HS1, HS2, OP) \
+static void do_##NAME(void *vd, void *vs1, void *vs2, int i) \
+{ \
+ TX1 s1 = *((T1 *)vs1 + HS1(i)); \
+ TX2 s2 = *((T2 *)vs2 + HS2(i)); \
+ *((TD *)vd + HD(i)) = OP(s2, s1); \
+}
+#define DO_SUB(N, M) (N - M)
+#define DO_RSUB(N, M) (M - N)
+
+RVVCALL(OPIVV2, vadd_vv_b, OP_SSS_B, H1, H1, H1, DO_ADD)
+RVVCALL(OPIVV2, vadd_vv_h, OP_SSS_H, H2, H2, H2, DO_ADD)
+RVVCALL(OPIVV2, vadd_vv_w, OP_SSS_W, H4, H4, H4, DO_ADD)
+RVVCALL(OPIVV2, vadd_vv_d, OP_SSS_D, H8, H8, H8, DO_ADD)
+RVVCALL(OPIVV2, vsub_vv_b, OP_SSS_B, H1, H1, H1, DO_SUB)
+RVVCALL(OPIVV2, vsub_vv_h, OP_SSS_H, H2, H2, H2, DO_SUB)
+RVVCALL(OPIVV2, vsub_vv_w, OP_SSS_W, H4, H4, H4, DO_SUB)
+RVVCALL(OPIVV2, vsub_vv_d, OP_SSS_D, H8, H8, H8, DO_SUB)
+
+static void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2,
+ CPURISCVState *env, uint32_t desc,
+ uint32_t esz, uint32_t dsz,
+ opivv2_fn *fn, clear_fn *clearfn)
+{
+ uint32_t vlmax = vext_maxsz(desc) / esz;
+ uint32_t mlen = vext_mlen(desc);
+ uint32_t vm = vext_vm(desc);
+ uint32_t vl = env->vl;
+ uint32_t i;
+
+ for (i = 0; i < vl; i++) {
+ if (!vm && !vext_elem_mask(v0, mlen, i)) {
+ continue;
+ }
+ fn(vd, vs1, vs2, i);
+ }
+ clearfn(vd, vl, vl * dsz, vlmax * dsz);
+}
+
+/* generate the helpers for OPIVV */
+#define GEN_VEXT_VV(NAME, ESZ, DSZ, CLEAR_FN) \
+void HELPER(NAME)(void *vd, void *v0, void *vs1, \
+ void *vs2, CPURISCVState *env, \
+ uint32_t desc) \
+{ \
+ do_vext_vv(vd, v0, vs1, vs2, env, desc, ESZ, DSZ, \
+ do_##NAME, CLEAR_FN); \
+}
+
+GEN_VEXT_VV(vadd_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vadd_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vadd_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vadd_vv_d, 8, 8, clearq)
+GEN_VEXT_VV(vsub_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vsub_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vsub_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vsub_vv_d, 8, 8, clearq)
+
+typedef void opivx2_fn(void *vd, target_long s1, void *vs2, int i);
+
+/*
+ * (T1)s1 gives the real operator type.
+ * (TX1)(T1)s1 expands the operator type of widen or narrow operations.
+ */
+#define OPIVX2(NAME, TD, T1, T2, TX1, TX2, HD, HS2, OP) \
+static void do_##NAME(void *vd, target_long s1, void *vs2, int i) \
+{ \
+ TX2 s2 = *((T2 *)vs2 + HS2(i)); \
+ *((TD *)vd + HD(i)) = OP(s2, (TX1)(T1)s1); \
+}
+
+RVVCALL(OPIVX2, vadd_vx_b, OP_SSS_B, H1, H1, DO_ADD)
+RVVCALL(OPIVX2, vadd_vx_h, OP_SSS_H, H2, H2, DO_ADD)
+RVVCALL(OPIVX2, vadd_vx_w, OP_SSS_W, H4, H4, DO_ADD)
+RVVCALL(OPIVX2, vadd_vx_d, OP_SSS_D, H8, H8, DO_ADD)
+RVVCALL(OPIVX2, vsub_vx_b, OP_SSS_B, H1, H1, DO_SUB)
+RVVCALL(OPIVX2, vsub_vx_h, OP_SSS_H, H2, H2, DO_SUB)
+RVVCALL(OPIVX2, vsub_vx_w, OP_SSS_W, H4, H4, DO_SUB)
+RVVCALL(OPIVX2, vsub_vx_d, OP_SSS_D, H8, H8, DO_SUB)
+RVVCALL(OPIVX2, vrsub_vx_b, OP_SSS_B, H1, H1, DO_RSUB)
+RVVCALL(OPIVX2, vrsub_vx_h, OP_SSS_H, H2, H2, DO_RSUB)
+RVVCALL(OPIVX2, vrsub_vx_w, OP_SSS_W, H4, H4, DO_RSUB)
+RVVCALL(OPIVX2, vrsub_vx_d, OP_SSS_D, H8, H8, DO_RSUB)
+
+static void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2,
+ CPURISCVState *env, uint32_t desc,
+ uint32_t esz, uint32_t dsz,
+ opivx2_fn fn, clear_fn *clearfn)
+{
+ uint32_t vlmax = vext_maxsz(desc) / esz;
+ uint32_t mlen = vext_mlen(desc);
+ uint32_t vm = vext_vm(desc);
+ uint32_t vl = env->vl;
+ uint32_t i;
+
+ for (i = 0; i < vl; i++) {
+ if (!vm && !vext_elem_mask(v0, mlen, i)) {
+ continue;
+ }
+ fn(vd, s1, vs2, i);
+ }
+ clearfn(vd, vl, vl * dsz, vlmax * dsz);
+}
+
+/* generate the helpers for OPIVX */
+#define GEN_VEXT_VX(NAME, ESZ, DSZ, CLEAR_FN) \
+void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \
+ void *vs2, CPURISCVState *env, \
+ uint32_t desc) \
+{ \
+ do_vext_vx(vd, v0, s1, vs2, env, desc, ESZ, DSZ, \
+ do_##NAME, CLEAR_FN); \
+}
+
+GEN_VEXT_VX(vadd_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vadd_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vadd_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vadd_vx_d, 8, 8, clearq)
+GEN_VEXT_VX(vsub_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vsub_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vsub_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vsub_vx_d, 8, 8, clearq)
+GEN_VEXT_VX(vrsub_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vrsub_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vrsub_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vrsub_vx_d, 8, 8, clearq)
+
+void HELPER(vec_rsubs8)(void *d, void *a, uint64_t b, uint32_t desc)
+{
+ intptr_t oprsz = simd_oprsz(desc);
+ intptr_t i;
+
+ for (i = 0; i < oprsz; i += sizeof(uint8_t)) {
+ *(uint8_t *)(d + i) = (uint8_t)b - *(uint8_t *)(a + i);
+ }
+}
+
+void HELPER(vec_rsubs16)(void *d, void *a, uint64_t b, uint32_t desc)
+{
+ intptr_t oprsz = simd_oprsz(desc);
+ intptr_t i;
+
+ for (i = 0; i < oprsz; i += sizeof(uint16_t)) {
+ *(uint16_t *)(d + i) = (uint16_t)b - *(uint16_t *)(a + i);
+ }
+}
+
+void HELPER(vec_rsubs32)(void *d, void *a, uint64_t b, uint32_t desc)
+{
+ intptr_t oprsz = simd_oprsz(desc);
+ intptr_t i;
+
+ for (i = 0; i < oprsz; i += sizeof(uint32_t)) {
+ *(uint32_t *)(d + i) = (uint32_t)b - *(uint32_t *)(a + i);
+ }
+}
+
+void HELPER(vec_rsubs64)(void *d, void *a, uint64_t b, uint32_t desc)
+{
+ intptr_t oprsz = simd_oprsz(desc);
+ intptr_t i;
+
+ for (i = 0; i < oprsz; i += sizeof(uint64_t)) {
+ *(uint64_t *)(d + i) = b - *(uint64_t *)(a + i);
+ }
+}
--
2.23.0
- [PATCH v9 00/61] target/riscv: support vector extension v0.7.1, LIU Zhiwei, 2020/06/10
- [PATCH v9 01/61] target/riscv: add vector extension field in CPURISCVState, LIU Zhiwei, 2020/06/10
- [PATCH v9 02/61] target/riscv: implementation-defined constant parameters, LIU Zhiwei, 2020/06/10
- [PATCH v9 03/61] target/riscv: support vector extension csr, LIU Zhiwei, 2020/06/10
- [PATCH v9 04/61] target/riscv: add vector configure instruction, LIU Zhiwei, 2020/06/10
- [PATCH v9 05/61] target/riscv: add an internals.h header, LIU Zhiwei, 2020/06/10
- [PATCH v9 06/61] target/riscv: add vector stride load and store instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 07/61] target/riscv: add vector index load and store instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 08/61] target/riscv: add fault-only-first unit stride load, LIU Zhiwei, 2020/06/10
- [PATCH v9 09/61] target/riscv: add vector amo operations, LIU Zhiwei, 2020/06/10
- [PATCH v9 10/61] target/riscv: vector single-width integer add and subtract,
LIU Zhiwei <=
- [PATCH v9 11/61] target/riscv: vector widening integer add and subtract, LIU Zhiwei, 2020/06/10
- [PATCH v9 12/61] target/riscv: vector integer add-with-carry / subtract-with-borrow instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 13/61] target/riscv: vector bitwise logical instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 14/61] target/riscv: vector single-width bit shift instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 15/61] target/riscv: vector narrowing integer right shift instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 16/61] target/riscv: vector integer comparison instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 17/61] target/riscv: vector integer min/max instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 18/61] target/riscv: vector single-width integer multiply instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 19/61] target/riscv: vector integer divide instructions, LIU Zhiwei, 2020/06/10
- [PATCH v9 20/61] target/riscv: vector widening integer multiply instructions, LIU Zhiwei, 2020/06/10