Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/arm/helper-sve.h | 5 ++++
target/arm/sve_helper.c | 40 +++++++++++++++++++++++++++
target/arm/translate-sve.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++
target/arm/sve.decode | 14 ++++++++++
4 files changed, 126 insertions(+)
diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index b31d497f31..2a2dbe98dd 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -363,6 +363,11 @@ DEF_HELPER_FLAGS_6(sve_mls_s, TCG_CALL_NO_RWG,
DEF_HELPER_FLAGS_6(sve_mls_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, ptr, i32)
+DEF_HELPER_FLAGS_4(sve_index_b, TCG_CALL_NO_RWG, void, ptr, i32, i32, i32)
+DEF_HELPER_FLAGS_4(sve_index_h, TCG_CALL_NO_RWG, void, ptr, i32, i32, i32)
+DEF_HELPER_FLAGS_4(sve_index_s, TCG_CALL_NO_RWG, void, ptr, i32, i32, i32)
+DEF_HELPER_FLAGS_4(sve_index_d, TCG_CALL_NO_RWG, void, ptr, i64, i64, i32)
+
DEF_HELPER_FLAGS_5(sve_and_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr,
i32)
DEF_HELPER_FLAGS_5(sve_bic_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr,
i32)
DEF_HELPER_FLAGS_5(sve_eor_pppp, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr,
i32)
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 4b08a38ce8..950012e70a 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -991,3 +991,43 @@ DO_ZPZZZ_D(sve_mls_d, uint64_t, DO_MLS)
#undef DO_MLS
#undef DO_ZPZZZ
#undef DO_ZPZZZ_D
+
+void HELPER(sve_index_b)(void *vd, uint32_t start,
+ uint32_t incr, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc);
+ uint8_t *d = vd;
+ for (i = 0; i < opr_sz; i += 1) {
+ d[H1(i)] = start + i * incr;
+ }
+}
+
+void HELPER(sve_index_h)(void *vd, uint32_t start,
+ uint32_t incr, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc) / 2;
+ uint16_t *d = vd;
+ for (i = 0; i < opr_sz; i += 1) {
+ d[H2(i)] = start + i * incr;
+ }
+}
+
+void HELPER(sve_index_s)(void *vd, uint32_t start,
+ uint32_t incr, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc) / 4;
+ uint32_t *d = vd;
+ for (i = 0; i < opr_sz; i += 1) {
+ d[H4(i)] = start + i * incr;
+ }
+}
+
+void HELPER(sve_index_d)(void *vd, uint64_t start,
+ uint64_t incr, uint32_t desc)
+{
+ intptr_t i, opr_sz = simd_oprsz(desc) / 8;
+ uint64_t *d = vd;
+ for (i = 0; i < opr_sz; i += 1) {
+ d[i] = start + i * incr;
+ }
+}
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 8baec6c674..773f0bfded 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -675,6 +675,73 @@ DO_ZPZZZ(MLS, mls)
#undef DO_ZPZZZ
+/*
+ *** SVE Index Generation Group
+ */
+
+static void do_index(DisasContext *s, int esz, int rd,
+ TCGv_i64 start, TCGv_i64 incr)
+{
+ unsigned vsz = vec_full_reg_size(s);
+ TCGv_i32 desc = tcg_const_i32(simd_desc(vsz, vsz, 0));
+ TCGv_ptr t_zd = tcg_temp_new_ptr();
+
+ tcg_gen_addi_ptr(t_zd, cpu_env, vec_full_reg_offset(s, rd));
+ if (esz == 3) {
+ gen_helper_sve_index_d(t_zd, start, incr, desc);
+ } else {
+ typedef void index_fn(TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32);
+ static index_fn * const fns[3] = {
+ gen_helper_sve_index_b,
+ gen_helper_sve_index_h,
+ gen_helper_sve_index_s,
+ };
+ TCGv_i32 s32 = tcg_temp_new_i32();
+ TCGv_i32 i32 = tcg_temp_new_i32();
+
+ tcg_gen_extrl_i64_i32(s32, start);
+ tcg_gen_extrl_i64_i32(i32, incr);
+ fns[esz](t_zd, s32, i32, desc);
+
+ tcg_temp_free_i32(s32);
+ tcg_temp_free_i32(i32);
+ }
+ tcg_temp_free_ptr(t_zd);
+ tcg_temp_free_i32(desc);
+}
+
+static void trans_INDEX_ii(DisasContext *s, arg_INDEX_ii *a, uint32_t insn)
+{
+ TCGv_i64 start = tcg_const_i64(a->imm1);
+ TCGv_i64 incr = tcg_const_i64(a->imm2);
+ do_index(s, a->esz, a->rd, start, incr);
+ tcg_temp_free_i64(start);
+ tcg_temp_free_i64(incr);
+}
+
+static void trans_INDEX_ir(DisasContext *s, arg_INDEX_ir *a, uint32_t insn)
+{
+ TCGv_i64 start = tcg_const_i64(a->imm);
+ TCGv_i64 incr = cpu_reg(s, a->rm);
+ do_index(s, a->esz, a->rd, start, incr);
+ tcg_temp_free_i64(start);
+}
+
+static void trans_INDEX_ri(DisasContext *s, arg_INDEX_ri *a, uint32_t insn)
+{
+ TCGv_i64 start = cpu_reg(s, a->rn);
+ TCGv_i64 incr = tcg_const_i64(a->imm);
+ do_index(s, a->esz, a->rd, start, incr);
+ tcg_temp_free_i64(incr);
+}
+
+static void trans_INDEX_rr(DisasContext *s, arg_INDEX_rr *a, uint32_t insn)
+{
+ TCGv_i64 start = cpu_reg(s, a->rn);
+ TCGv_i64 incr = cpu_reg(s, a->rm);
+ do_index(s, a->esz, a->rd, start, incr);
+}
+
/*
*** SVE Predicate Logical Operations Group
*/
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index b40d7dc9a2..d7b078e92f 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -226,6 +226,20 @@ ORR_zzz 00000100 01 1 ..... 001 100 ..... .....
@rd_rn_rm_e0
EOR_zzz 00000100 10 1 ..... 001 100 ..... .....
@rd_rn_rm_e0
BIC_zzz 00000100 11 1 ..... 001 100 ..... .....
@rd_rn_rm_e0
+### SVE Index Generation Group
+
+# SVE index generation (immediate start, immediate increment)
+INDEX_ii 00000100 esz:2 1 imm2:s5 010000 imm1:s5 rd:5
+
+# SVE index generation (immediate start, register increment)
+INDEX_ir 00000100 esz:2 1 rm:5 010010 imm:s5 rd:5
+
+# SVE index generation (register start, immediate increment)
+INDEX_ri 00000100 esz:2 1 imm:s5 010001 rn:5 rd:5
+
+# SVE index generation (register start, register increment)
+INDEX_rr 00000100 .. 1 ..... 010011 ..... ..... @rd_rn_rm
+
### SVE Predicate Logical Operations Group
# SVE predicate logical operations
--
2.14.3
