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| author | David Hildenbrand <david@redhat.com> | 2019-03-07 13:15:27 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2019-03-11 09:31:01 +0100 |
| commit | 7aaf844d46ae8153a6219493b11623f62971b60a (patch) | |
| tree | 299cf15a502550c86f892383a268a6e719cc8756 /target | |
| parent | 73946f0d556453da9605ee0e258220dfc3dfd622 (diff) | |
| download | qemu-7aaf844d46ae8153a6219493b11623f62971b60a.zip qemu-7aaf844d46ae8153a6219493b11623f62971b60a.tar.gz qemu-7aaf844d46ae8153a6219493b11623f62971b60a.tar.bz2 | |
s390x/tcg: Implement VECTOR PERMUTE
Take care of overlying inputs and outputs by using a temporary vector.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-21-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/s390x/helper.h | 1 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 1 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 12 | ||||
| -rw-r--r-- | target/s390x/vec_helper.c | 20 |
4 files changed, 34 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 315495f..577edb3 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -141,6 +141,7 @@ DEF_HELPER_FLAGS_4(gvec_vpkls64, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) DEF_HELPER_5(gvec_vpkls_cc16, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vpkls_cc32, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vpkls_cc64, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vperm, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, cptr, i32) #ifndef CONFIG_USER_ONLY DEF_HELPER_3(servc, i32, env, i64, i64) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 39cd6f2..5f77462 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1020,6 +1020,7 @@ F(0xe797, VPKS, VRR_b, V, 0, 0, 0, 0, vpk, 0, IF_VEC) /* VECTOR PACK LOGICAL SATURATE */ F(0xe795, VPKLS, VRR_b, V, 0, 0, 0, 0, vpk, 0, IF_VEC) + F(0xe78c, VPERM, VRR_e, V, 0, 0, 0, 0, vperm, 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 7ae38f7..d8cf436 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -141,6 +141,10 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr, #define gen_gvec_3_ptr(v1, v2, v3, ptr, data, fn) \ tcg_gen_gvec_3_ptr(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \ vec_full_reg_offset(v3), ptr, 16, 16, data, fn) +#define gen_gvec_4_ool(v1, v2, v3, v4, data, fn) \ + tcg_gen_gvec_4_ool(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \ + vec_full_reg_offset(v3), vec_full_reg_offset(v4), \ + 16, 16, data, fn) #define gen_gvec_dup_i64(es, v1, c) \ tcg_gen_gvec_dup_i64(es, vec_full_reg_offset(v1), 16, 16, c) #define gen_gvec_mov(v1, v2) \ @@ -663,3 +667,11 @@ static DisasJumpType op_vpk(DisasContext *s, DisasOps *o) } return DISAS_NEXT; } + +static DisasJumpType op_vperm(DisasContext *s, DisasOps *o) +{ + gen_gvec_4_ool(get_field(s->fields, v1), get_field(s->fields, v2), + get_field(s->fields, v3), get_field(s->fields, v4), + 0, gen_helper_gvec_vperm); + return DISAS_NEXT; +} diff --git a/target/s390x/vec_helper.c b/target/s390x/vec_helper.c index 7f68020..021695b 100644 --- a/target/s390x/vec_helper.c +++ b/target/s390x/vec_helper.c @@ -147,3 +147,23 @@ void HELPER(gvec_vpkls_cc##BITS)(void *v1, const void *v2, const void *v3, \ DEF_VPKLS(64, 32) DEF_VPKLS(32, 16) DEF_VPKLS(16, 8) + +void HELPER(gvec_vperm)(void *v1, const void *v2, const void *v3, + const void *v4, uint32_t desc) +{ + S390Vector tmp; + int i; + + for (i = 0; i < 16; i++) { + const uint8_t selector = s390_vec_read_element8(v4, i) & 0x1f; + uint8_t byte; + + if (selector < 16) { + byte = s390_vec_read_element8(v2, selector); + } else { + byte = s390_vec_read_element8(v3, selector - 16); + } + s390_vec_write_element8(&tmp, i, byte); + } + *(S390Vector *)v1 = tmp; +} |