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target/riscv: rvv: Add tail agnostic for vector reduction instructions
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Signed-off-by: eop Chen <eop.chen@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <165449614532.19704.7000832880482980398-13@git.sr.ht>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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@eopXD @alistair23
eopXD authored and alistair23 committed Jun 9, 2022
1 parent 5eacf7d commit df4f52a
Showing 1 changed file with 20 additions and 0 deletions.
20 changes: 20 additions & 0 deletions target/riscv/vector_helper.c
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Expand Up @@ -4535,6 +4535,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \
{ \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
uint32_t esz = sizeof(TD); \
uint32_t vlenb = simd_maxsz(desc); \
uint32_t vta = vext_vta(desc); \
uint32_t i; \
TD s1 = *((TD *)vs1 + HD(0)); \
\
Expand All @@ -4547,6 +4550,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \
} \
*((TD *)vd + HD(0)) = s1; \
env->vstart = 0; \
/* set tail elements to 1s */ \
vext_set_elems_1s(vd, vta, esz, vlenb); \
}

/* vd[0] = sum(vs1[0], vs2[*]) */
Expand Down Expand Up @@ -4616,6 +4621,9 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \
{ \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
uint32_t esz = sizeof(TD); \
uint32_t vlenb = simd_maxsz(desc); \
uint32_t vta = vext_vta(desc); \
uint32_t i; \
TD s1 = *((TD *)vs1 + HD(0)); \
\
Expand All @@ -4628,6 +4636,8 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \
} \
*((TD *)vd + HD(0)) = s1; \
env->vstart = 0; \
/* set tail elements to 1s */ \
vext_set_elems_1s(vd, vta, esz, vlenb); \
}

/* Unordered sum */
Expand All @@ -4652,6 +4662,9 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void *vs1,
{
uint32_t vm = vext_vm(desc);
uint32_t vl = env->vl;
uint32_t esz = sizeof(uint32_t);
uint32_t vlenb = simd_maxsz(desc);
uint32_t vta = vext_vta(desc);
uint32_t i;
uint32_t s1 = *((uint32_t *)vs1 + H4(0));

Expand All @@ -4665,13 +4678,18 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void *vs1,
}
*((uint32_t *)vd + H4(0)) = s1;
env->vstart = 0;
/* set tail elements to 1s */
vext_set_elems_1s(vd, vta, esz, vlenb);
}

void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1,
void *vs2, CPURISCVState *env, uint32_t desc)
{
uint32_t vm = vext_vm(desc);
uint32_t vl = env->vl;
uint32_t esz = sizeof(uint64_t);
uint32_t vlenb = simd_maxsz(desc);
uint32_t vta = vext_vta(desc);
uint32_t i;
uint64_t s1 = *((uint64_t *)vs1);

Expand All @@ -4685,6 +4703,8 @@ void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1,
}
*((uint64_t *)vd) = s1;
env->vstart = 0;
/* set tail elements to 1s */
vext_set_elems_1s(vd, vta, esz, vlenb);
}

/*
Expand Down

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