diff options
| author | David Hildenbrand <david@redhat.com> | 2019-05-29 22:22:35 +0200 |
|---|---|---|
| committer | David Hildenbrand <david@redhat.com> | 2019-06-07 14:53:26 +0200 |
| commit | 5938f20cb807b584799feef411a1906a9d8f7a1b (patch) | |
| tree | 329747c99c970dc9c164bb6ee456930d33484e4b | |
| parent | 76e35cc7a52390d2743a9746a1bec29754f60306 (diff) | |
s390x/tcg: Implement VECTOR FP SQUARE ROOT
Simulate XxC=0 and ERM=0 (current mode), so we can use the existing
helper function.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
| -rw-r--r-- | target/s390x/helper.h | 2 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate_vx.inc.c | 19 | ||||
| -rw-r--r-- | target/s390x/vec_fpu_helper.c | 17 |
4 files changed, 40 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index bcaabb91a5..23b37af1e4 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -288,6 +288,8 @@ DEF_HELPER_FLAGS_6(gvec_vfma64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env DEF_HELPER_FLAGS_6(gvec_vfma64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_6(gvec_vfms64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_6(gvec_vfms64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_4(gvec_vfsq64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) +DEF_HELPER_FLAGS_4(gvec_vfsq64s, TCG_CALL_NO_WG, void, ptr, cptr, env, 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 fa2e801747..354252d57c 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1242,6 +1242,8 @@ F(0xe78e, VFMS, VRR_e, V, 0, 0, 0, 0, vfma, 0, IF_VEC) /* VECTOR FP PERFORM SIGN OPERATION */ F(0xe7cc, VFPSO, VRR_a, V, 0, 0, 0, 0, vfpso, 0, IF_VEC) +/* VECTOR FP SQUARE ROOT */ + F(0xe7ce, VFSQ, VRR_a, V, 0, 0, 0, 0, vfsq, 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 9b8606ba25..75f3596c4b 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -2779,3 +2779,22 @@ static DisasJumpType op_vfpso(DisasContext *s, DisasOps *o) } return DISAS_NEXT; } + +static DisasJumpType op_vfsq(DisasContext *s, DisasOps *o) +{ + const uint8_t fpf = get_field(s->fields, m3); + const uint8_t m4 = get_field(s->fields, m4); + gen_helper_gvec_2_ptr *fn = gen_helper_gvec_vfsq64; + + if (fpf != FPF_LONG || extract32(m4, 0, 3)) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + if (extract32(m4, 3, 1)) { + fn = gen_helper_gvec_vfsq64s; + } + gen_gvec_2_ptr(get_field(s->fields, v1), get_field(s->fields, v2), cpu_env, + 0, fn); + return DISAS_NEXT; +} diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c index 7993a6fafa..18773eb559 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -552,3 +552,20 @@ void HELPER(gvec_vfms64s)(void *v1, const void *v2, const void *v3, { vfma64(v1, v2, v3, v4, env, true, float_muladd_negate_c, GETPC()); } + +static uint64_t vfsq64(uint64_t a, float_status *s) +{ + return float64_sqrt(a, s); +} + +void HELPER(gvec_vfsq64)(void *v1, const void *v2, CPUS390XState *env, + uint32_t desc) +{ + vop64_2(v1, v2, env, false, false, 0, vfsq64, GETPC()); +} + +void HELPER(gvec_vfsq64s)(void *v1, const void *v2, CPUS390XState *env, + uint32_t desc) +{ + vop64_2(v1, v2, env, true, false, 0, vfsq64, GETPC()); +} |