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target/riscv: vector slide instructions 

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200701152549.1218-59-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2020-07-01 23:25:46 +08:00 committed by Alistair Francis
parent 2843420a56
commit ec17e03688
4 changed files with 155 additions and 0 deletions
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17
target/riscv/helper.h
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@ -1119,3 +1119,20 @@ DEF_HELPER_4(vid_v_b, void, ptr, ptr, env, i32)
DEF_HELPER_4(vid_v_h, void, ptr, ptr, env, i32)
DEF_HELPER_4(vid_v_w, void, ptr, ptr, env, i32)
DEF_HELPER_4(vid_v_d, void, ptr, ptr, env, i32)
DEF_HELPER_6(vslideup_vx_b, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslideup_vx_h, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslideup_vx_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslideup_vx_d, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslidedown_vx_b, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslidedown_vx_h, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslidedown_vx_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslidedown_vx_d, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1up_vx_b, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1up_vx_h, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1up_vx_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1up_vx_d, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1down_vx_b, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1down_vx_h, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1down_vx_w, void, ptr, ptr, tl, ptr, env, i32)
DEF_HELPER_6(vslide1down_vx_d, void, ptr, ptr, tl, ptr, env, i32)

6
target/riscv/insn32.decode
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@ -568,6 +568,12 @@ vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r
vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2
vfmv_f_s 001100 1 ..... 00000 001 ..... 1010111 @r2rd
vfmv_s_f 001101 1 00000 ..... 101 ..... 1010111 @r2
vslideup_vx 001110 . ..... ..... 100 ..... 1010111 @r_vm
vslideup_vi 001110 . ..... ..... 011 ..... 1010111 @r_vm
vslide1up_vx 001110 . ..... ..... 110 ..... 1010111 @r_vm
vslidedown_vx 001111 . ..... ..... 100 ..... 1010111 @r_vm
vslidedown_vi 001111 . ..... ..... 011 ..... 1010111 @r_vm
vslide1down_vx 001111 . ..... ..... 110 ..... 1010111 @r_vm
vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm
vsetvl 1000000 ..... ..... 111 ..... 1010111 @r

18
target/riscv/insn_trans/trans_rvv.inc.c
View File

@ -2758,3 +2758,21 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a)
}
return false;
}
/* Vector Slide Instructions */
static bool slideup_check(DisasContext *s, arg_rmrr *a)
{
return (vext_check_isa_ill(s) &&
vext_check_overlap_mask(s, a->rd, a->vm, true) &&
vext_check_reg(s, a->rd, false) &&
vext_check_reg(s, a->rs2, false) &&
(a->rd != a->rs2));
}
GEN_OPIVX_TRANS(vslideup_vx, slideup_check)
GEN_OPIVX_TRANS(vslide1up_vx, slideup_check)
GEN_OPIVI_TRANS(vslideup_vi, 1, vslideup_vx, slideup_check)
GEN_OPIVX_TRANS(vslidedown_vx, opivx_check)
GEN_OPIVX_TRANS(vslide1down_vx, opivx_check)
GEN_OPIVI_TRANS(vslidedown_vi, 1, vslidedown_vx, opivx_check)

114
target/riscv/vector_helper.c
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@ -4697,3 +4697,117 @@ GEN_VEXT_VID_V(vid_v_b, uint8_t, H1, clearb)
GEN_VEXT_VID_V(vid_v_h, uint16_t, H2, clearh)
GEN_VEXT_VID_V(vid_v_w, uint32_t, H4, clearl)
GEN_VEXT_VID_V(vid_v_d, uint64_t, H8, clearq)
/*
*** Vector Permutation Instructions
*/
/* Vector Slide Instructions */
#define GEN_VEXT_VSLIDEUP_VX(NAME, ETYPE, H, CLEAR_FN) \
void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \
CPURISCVState *env, uint32_t desc) \
{ \
uint32_t mlen = vext_mlen(desc); \
uint32_t vlmax = env_archcpu(env)->cfg.vlen / mlen; \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
target_ulong offset = s1, i; \
\
for (i = offset; i < vl; i++) { \
if (!vm && !vext_elem_mask(v0, mlen, i)) { \
continue; \
} \
*((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i - offset)); \
} \
CLEAR_FN(vd, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \
}
/* vslideup.vx vd, vs2, rs1, vm # vd[i+rs1] = vs2[i] */
GEN_VEXT_VSLIDEUP_VX(vslideup_vx_b, uint8_t, H1, clearb)
GEN_VEXT_VSLIDEUP_VX(vslideup_vx_h, uint16_t, H2, clearh)
GEN_VEXT_VSLIDEUP_VX(vslideup_vx_w, uint32_t, H4, clearl)
GEN_VEXT_VSLIDEUP_VX(vslideup_vx_d, uint64_t, H8, clearq)
#define GEN_VEXT_VSLIDEDOWN_VX(NAME, ETYPE, H, CLEAR_FN) \
void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \
CPURISCVState *env, uint32_t desc) \
{ \
uint32_t mlen = vext_mlen(desc); \
uint32_t vlmax = env_archcpu(env)->cfg.vlen / mlen; \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
target_ulong offset = s1, i; \
\
for (i = 0; i < vl; ++i) { \
target_ulong j = i + offset; \
if (!vm && !vext_elem_mask(v0, mlen, i)) { \
continue; \
} \
*((ETYPE *)vd + H(i)) = j >= vlmax ? 0 : *((ETYPE *)vs2 + H(j)); \
} \
CLEAR_FN(vd, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \
}
/* vslidedown.vx vd, vs2, rs1, vm # vd[i] = vs2[i+rs1] */
GEN_VEXT_VSLIDEDOWN_VX(vslidedown_vx_b, uint8_t, H1, clearb)
GEN_VEXT_VSLIDEDOWN_VX(vslidedown_vx_h, uint16_t, H2, clearh)
GEN_VEXT_VSLIDEDOWN_VX(vslidedown_vx_w, uint32_t, H4, clearl)
GEN_VEXT_VSLIDEDOWN_VX(vslidedown_vx_d, uint64_t, H8, clearq)
#define GEN_VEXT_VSLIDE1UP_VX(NAME, ETYPE, H, CLEAR_FN) \
void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \
CPURISCVState *env, uint32_t desc) \
{ \
uint32_t mlen = vext_mlen(desc); \
uint32_t vlmax = env_archcpu(env)->cfg.vlen / mlen; \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
uint32_t i; \
\
for (i = 0; i < vl; i++) { \
if (!vm && !vext_elem_mask(v0, mlen, i)) { \
continue; \
} \
if (i == 0) { \
*((ETYPE *)vd + H(i)) = s1; \
} else { \
*((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i - 1)); \
} \
} \
CLEAR_FN(vd, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \
}
/* vslide1up.vx vd, vs2, rs1, vm # vd[0]=x[rs1], vd[i+1] = vs2[i] */
GEN_VEXT_VSLIDE1UP_VX(vslide1up_vx_b, uint8_t, H1, clearb)
GEN_VEXT_VSLIDE1UP_VX(vslide1up_vx_h, uint16_t, H2, clearh)
GEN_VEXT_VSLIDE1UP_VX(vslide1up_vx_w, uint32_t, H4, clearl)
GEN_VEXT_VSLIDE1UP_VX(vslide1up_vx_d, uint64_t, H8, clearq)
#define GEN_VEXT_VSLIDE1DOWN_VX(NAME, ETYPE, H, CLEAR_FN) \
void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \
CPURISCVState *env, uint32_t desc) \
{ \
uint32_t mlen = vext_mlen(desc); \
uint32_t vlmax = env_archcpu(env)->cfg.vlen / mlen; \
uint32_t vm = vext_vm(desc); \
uint32_t vl = env->vl; \
uint32_t i; \
\
for (i = 0; i < vl; i++) { \
if (!vm && !vext_elem_mask(v0, mlen, i)) { \
continue; \
} \
if (i == vl - 1) { \
*((ETYPE *)vd + H(i)) = s1; \
} else { \
*((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i + 1)); \
} \
} \
CLEAR_FN(vd, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \
}
/* vslide1down.vx vd, vs2, rs1, vm # vd[i] = vs2[i+1], vd[vl-1]=x[rs1] */
GEN_VEXT_VSLIDE1DOWN_VX(vslide1down_vx_b, uint8_t, H1, clearb)
GEN_VEXT_VSLIDE1DOWN_VX(vslide1down_vx_h, uint16_t, H2, clearh)
GEN_VEXT_VSLIDE1DOWN_VX(vslide1down_vx_w, uint32_t, H4, clearl)
GEN_VEXT_VSLIDE1DOWN_VX(vslide1down_vx_d, uint64_t, H8, clearq)