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s390x/tcg: Implement VECTOR FP DIVIDE

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We can reuse most of the infrastructure added for VECTOR FP ADD.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-05-29 21:54:33 +02:00
parent 09c04e4b88
commit 817a1cec89
4 changed files with 24 additions and 0 deletions
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2
target/s390x/helper.h
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@ -274,6 +274,8 @@ DEF_HELPER_FLAGS_4(gvec_vcgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vcgd64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vclgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vclgd64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfd64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfd64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)

2
target/s390x/insn-data.def
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@ -1226,6 +1226,8 @@
F(0xe7c2, VCGD, VRR_a, V, 0, 0, 0, 0, vcdg, 0, IF_VEC)
/* VECTOR FP CONVERT TO LOGICAL 64-BIT */
F(0xe7c0, VCLGD, VRR_a, V, 0, 0, 0, 0, vcdg, 0, IF_VEC)
/* VECTOR FP DIVIDE */
F(0xe7e5, VFD, VRR_c, V, 0, 0, 0, 0, vfa, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

3
target/s390x/translate_vx.inc.c
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@ -2560,6 +2560,9 @@ static DisasJumpType op_vfa(DisasContext *s, DisasOps *o)
case 0xe3:
fn = se ? gen_helper_gvec_vfa64s : gen_helper_gvec_vfa64;
break;
case 0xe5:
fn = se ? gen_helper_gvec_vfd64s : gen_helper_gvec_vfd64;
break;
default:
g_assert_not_reached();
}

17
target/s390x/vec_fpu_helper.c
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@ -369,3 +369,20 @@ void HELPER(gvec_vclgd64s)(void *v1, const void *v2, CPUS390XState *env,
vop64_2(v1, v2, env, true, XxC, erm, vclgd64, GETPC());
}
static uint64_t vfd64(uint64_t a, uint64_t b, float_status *s)
{
return float64_div(a, b, s);
}
void HELPER(gvec_vfd64)(void *v1, const void *v2, const void *v3,
CPUS390XState *env, uint32_t desc)
{
vop64_3(v1, v2, v3, env, false, vfd64, GETPC());
}
void HELPER(gvec_vfd64s)(void *v1, const void *v2, const void *v3,
CPUS390XState *env, uint32_t desc)
{
vop64_3(v1, v2, v3, env, true, vfd64, GETPC());
}