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| author | David Hildenbrand <david@redhat.com> | 2019-04-10 22:45:35 +0200 |
|---|---|---|
| committer | David Hildenbrand <david@redhat.com> | 2019-05-17 10:54:13 +0200 |
| commit | e58de341d948d12cb36bbc5aa4866b7412581880 (patch) | |
| tree | b9bb197273d683dfa8b6aa27d9909ffb436c8ef9 | |
| parent | 8dc69a196eb2e3e8ab1d033b378e4f5a5efaa219 (diff) | |
| download | qemu-e58de341d948d12cb36bbc5aa4866b7412581880.zip | |
s390x/tcg: Implement VECTOR SUM ACROSS WORD
Similar to VECTOR SUM ACROSS DOUBLEWORD.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 29 |
2 files changed, 31 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 2483ee01d7..a52db41388 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1186,6 +1186,8 @@ F(0xe765, VSUMG, VRR_c, V, 0, 0, 0, 0, vsumg, 0, IF_VEC) /* VECTOR SUM ACROSS QUADWORD */ F(0xe767, VSUMQ, VRR_c, V, 0, 0, 0, 0, vsumq, 0, IF_VEC) +/* VECTOR SUM ACROSS WORD */ + F(0xe764, VSUM, VRR_c, V, 0, 0, 0, 0, vsum, 0, IF_VEC) #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c index 16bfbfce57..52ab8562e6 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2313,3 +2313,32 @@ static DisasJumpType op_vsumq(DisasContext *s, DisasOps *o) tcg_temp_free_i64(tmpl); return DISAS_NEXT; } + +static DisasJumpType op_vsum(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s->fields, m4); + TCGv_i32 sum, tmp; + uint8_t dst_idx; + + if (es > ES_16) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + sum = tcg_temp_new_i32(); + tmp = tcg_temp_new_i32(); + for (dst_idx = 0; dst_idx < 4; dst_idx++) { + uint8_t idx = dst_idx * NUM_VEC_ELEMENTS(es) / 4; + const uint8_t max_idx = idx + NUM_VEC_ELEMENTS(es) / 4 - 1; + + read_vec_element_i32(sum, get_field(s->fields, v3), max_idx, es); + for (; idx <= max_idx; idx++) { + read_vec_element_i32(tmp, get_field(s->fields, v2), idx, es); + tcg_gen_add_i32(sum, sum, tmp); + } + write_vec_element_i32(sum, get_field(s->fields, v1), dst_idx, ES_32); + } + tcg_temp_free_i32(sum); + tcg_temp_free_i32(tmp); + return DISAS_NEXT; +} |