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[PULL 60/63] target/riscv: vector slide instructions
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From: |
Alistair Francis |
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Subject: |
[PULL 60/63] target/riscv: vector slide instructions |
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Date: |
Fri, 26 Jun 2020 14:44:07 -0700 |
From: LIU Zhiwei <zhiwei_liu@c-sky.com>
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200623215920.2594-59-zhiwei_liu@c-sky.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/helper.h | 17 ++++
target/riscv/insn32.decode | 6 ++
target/riscv/insn_trans/trans_rvv.inc.c | 18 ++++
target/riscv/vector_helper.c | 114 ++++++++++++++++++++++++
4 files changed, 155 insertions(+)
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index c6695ea7a8..29a5eb7049 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -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)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 17288a3c95..36123f71b9 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -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
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c
b/target/riscv/insn_trans/trans_rvv.inc.c
index 7af16ce0a8..4ed6d1ee2e 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -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)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index dc6a94cea7..a3d7cd5f90 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -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)
--
2.27.0
- [PULL 51/63] target/riscv: vector mask-register logical instructions, (continued)
- [PULL 51/63] target/riscv: vector mask-register logical instructions, Alistair Francis, 2020/06/26
- [PULL 50/63] target/riscv: vector widening floating-point reduction instructions, Alistair Francis, 2020/06/26
- [PULL 52/63] target/riscv: vector mask population count vmpopc, Alistair Francis, 2020/06/26
- [PULL 53/63] target/riscv: vmfirst find-first-set mask bit, Alistair Francis, 2020/06/26
- [PULL 56/63] target/riscv: vector element index instruction, Alistair Francis, 2020/06/26
- [PULL 54/63] target/riscv: set-X-first mask bit, Alistair Francis, 2020/06/26
- [PULL 55/63] target/riscv: vector iota instruction, Alistair Francis, 2020/06/26
- [PULL 57/63] target/riscv: integer extract instruction, Alistair Francis, 2020/06/26
- [PULL 58/63] target/riscv: integer scalar move instruction, Alistair Francis, 2020/06/26
- [PULL 59/63] target/riscv: floating-point scalar move instructions, Alistair Francis, 2020/06/26
- [PULL 60/63] target/riscv: vector slide instructions,
Alistair Francis <=
- [PULL 61/63] target/riscv: vector register gather instruction, Alistair Francis, 2020/06/26
- [PULL 62/63] target/riscv: vector compress instruction, Alistair Francis, 2020/06/26
- [PULL 63/63] target/riscv: configure and turn on vector extension from command line, Alistair Francis, 2020/06/26
- Re: [PULL 00/63] riscv-to-apply queue, no-reply, 2020/06/26
- Re: [PULL 00/63] riscv-to-apply queue, no-reply, 2020/06/26
- Re: [PULL 00/63] riscv-to-apply queue, Peter Maydell, 2020/06/28