diff options
| author | David Hildenbrand <david@redhat.com> | 2021-06-08 11:23:29 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2021-06-21 08:48:21 +0200 |
| commit | 9cbc8be05aebc339546ed36334cb9e7b01e74b99 (patch) | |
| tree | 90aa544ca96f9020829f220a28a0bc28dd1b6435 | |
| parent | 2e96005ed8509275f7396adacc3353e9189ce518 (diff) | |
s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED
128 bit -> 64 bit, there is only a single element to process.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-19-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
| -rw-r--r-- | target/s390x/helper.h | 1 | ||||
| -rw-r--r-- | target/s390x/translate_vx.c.inc | 11 | ||||
| -rw-r--r-- | target/s390x/vec_fpu_helper.c | 19 |
3 files changed, 30 insertions, 1 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index b5ba159402..02e6967ae6 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -287,6 +287,7 @@ DEF_HELPER_FLAGS_4(gvec_vfi128, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vfll32, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vfll64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vflr64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) +DEF_HELPER_FLAGS_4(gvec_vflr128, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfm32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfm64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfm128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index 472afca45e..e94c9f9d86 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -2759,8 +2759,17 @@ static DisasJumpType op_vcdg(DisasContext *s, DisasOps *o) } break; case 0xc5: - if (fpf == FPF_LONG) { + switch (fpf) { + case FPF_LONG: fn = gen_helper_gvec_vflr64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vflr128; + } + break; + default: + break; } break; default: diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c index 75e3212582..0fb82bd18f 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -563,6 +563,25 @@ void HELPER(gvec_vflr64)(void *v1, const void *v2, CPUS390XState *env, *(S390Vector *)v1 = tmp; } +void HELPER(gvec_vflr128)(void *v1, const void *v2, CPUS390XState *env, + uint32_t desc) +{ + const uint8_t erm = extract32(simd_data(desc), 4, 4); + const bool XxC = extract32(simd_data(desc), 2, 1); + uint8_t vxc, vec_exc = 0; + int old_mode; + float64 ret; + + old_mode = s390_swap_bfp_rounding_mode(env, erm); + ret = float128_to_float64(s390_vec_read_float128(v2), &env->fpu_status); + vxc = check_ieee_exc(env, 0, XxC, &vec_exc); + s390_restore_bfp_rounding_mode(env, old_mode); + handle_ieee_exc(env, vxc, vec_exc, GETPC()); + + /* place at even element, odd element is unpredictable */ + s390_vec_write_float64(v1, 0, ret); +} + static void vfma64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, const S390Vector *v4, CPUS390XState *env, bool s, int flags, uintptr_t retaddr) |