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| author | David Hildenbrand | 2019-04-10 22:40:01 +0200 |
|---|---|---|
| committer | David Hildenbrand | 2019-05-17 10:54:13 +0200 |
| commit | 8dc69a196eb2e3e8ab1d033b378e4f5a5efaa219 (patch) | |
| tree | e0bf3a8a368fee66fa8ccce7ae8214ada28050af | |
| parent | s390x/tcg: Implement VECTOR SUM ACROSS DOUBLEWORD (diff) | |
| download | qemu-8dc69a196eb2e3e8ab1d033b378e4f5a5efaa219.tar.gz qemu-8dc69a196eb2e3e8ab1d033b378e4f5a5efaa219.tar.xz qemu-8dc69a196eb2e3e8ab1d033b378e4f5a5efaa219.zip | |
s390x/tcg: Implement VECTOR SUM ACROSS QUADWORD
Similar to VECTOR SUM ACROSS DOUBLEWORD, however without a loop and
using 128-bit calculations.
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 | 32 |
2 files changed, 34 insertions, 0 deletions
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index dd37003082..2483ee01d7 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1184,6 +1184,8 @@ F(0xe7bd, VSBCBI, VRR_d, V, 0, 0, 0, 0, vsbcbi, 0, IF_VEC) /* VECTOR SUM ACROSS DOUBLEWORD */ 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) #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 7b4efee5c0..16bfbfce57 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2281,3 +2281,35 @@ static DisasJumpType op_vsumg(DisasContext *s, DisasOps *o) tcg_temp_free_i64(tmp); return DISAS_NEXT; } + +static DisasJumpType op_vsumq(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s->fields, m4); + const uint8_t max_idx = NUM_VEC_ELEMENTS(es) - 1; + TCGv_i64 sumh, suml, zero, tmpl; + uint8_t idx; + + if (es < ES_32 || es > ES_64) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + sumh = tcg_const_i64(0); + suml = tcg_temp_new_i64(); + zero = tcg_const_i64(0); + tmpl = tcg_temp_new_i64(); + + read_vec_element_i64(suml, get_field(s->fields, v3), max_idx, es); + for (idx = 0; idx <= max_idx; idx++) { + read_vec_element_i64(tmpl, get_field(s->fields, v2), idx, es); + tcg_gen_add2_i64(suml, sumh, suml, sumh, tmpl, zero); + } + write_vec_element_i64(sumh, get_field(s->fields, v1), 0, ES_64); + write_vec_element_i64(suml, get_field(s->fields, v1), 1, ES_64); + + tcg_temp_free_i64(sumh); + tcg_temp_free_i64(suml); + tcg_temp_free_i64(zero); + tcg_temp_free_i64(tmpl); + return DISAS_NEXT; +} |