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[PATCH v6 19/61] target/riscv: vector integer divide instructions


From: LIU Zhiwei
Subject: [PATCH v6 19/61] target/riscv: vector integer divide instructions
Date: Tue, 17 Mar 2020 23:06:11 +0800

Signed-off-by: LIU Zhiwei <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
 target/riscv/helper.h                   | 33 +++++++++++
 target/riscv/insn32.decode              |  8 +++
 target/riscv/insn_trans/trans_rvv.inc.c | 10 ++++
 target/riscv/vector_helper.c            | 74 +++++++++++++++++++++++++
 4 files changed, 125 insertions(+)

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index f42a12eef3..357f149198 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -558,3 +558,36 @@ DEF_HELPER_6(vmulhsu_vx_b, void, ptr, ptr, tl, ptr, env, 
i32)
 DEF_HELPER_6(vmulhsu_vx_h, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vmulhsu_vx_w, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vmulhsu_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+
+DEF_HELPER_6(vdivu_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdivu_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdivu_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdivu_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdiv_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdiv_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdiv_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdiv_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vremu_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vremu_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vremu_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vremu_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vrem_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vrem_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vrem_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vrem_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vdivu_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdivu_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdivu_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdivu_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdiv_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdiv_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdiv_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vdiv_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vremu_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vremu_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vremu_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vremu_vx_d, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrem_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrem_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrem_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vrem_vx_d, void, ptr, ptr, tl, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index abfed469bc..7fb8f8fad8 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -371,6 +371,14 @@ vmulhu_vv       100100 . ..... ..... 010 ..... 1010111 
@r_vm
 vmulhu_vx       100100 . ..... ..... 110 ..... 1010111 @r_vm
 vmulhsu_vv      100110 . ..... ..... 010 ..... 1010111 @r_vm
 vmulhsu_vx      100110 . ..... ..... 110 ..... 1010111 @r_vm
+vdivu_vv        100000 . ..... ..... 010 ..... 1010111 @r_vm
+vdivu_vx        100000 . ..... ..... 110 ..... 1010111 @r_vm
+vdiv_vv         100001 . ..... ..... 010 ..... 1010111 @r_vm
+vdiv_vx         100001 . ..... ..... 110 ..... 1010111 @r_vm
+vremu_vv        100010 . ..... ..... 010 ..... 1010111 @r_vm
+vremu_vx        100010 . ..... ..... 110 ..... 1010111 @r_vm
+vrem_vv         100011 . ..... ..... 010 ..... 1010111 @r_vm
+vrem_vx         100011 . ..... ..... 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 c276beabd6..ed53eaaef5 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -1462,3 +1462,13 @@ GEN_OPIVX_GVEC_TRANS(vmul_vx,  muls)
 GEN_OPIVX_TRANS(vmulh_vx, opivx_check)
 GEN_OPIVX_TRANS(vmulhu_vx, opivx_check)
 GEN_OPIVX_TRANS(vmulhsu_vx, opivx_check)
+
+/* Vector Integer Divide Instructions */
+GEN_OPIVV_TRANS(vdivu_vv, opivv_check)
+GEN_OPIVV_TRANS(vdiv_vv, opivv_check)
+GEN_OPIVV_TRANS(vremu_vv, opivv_check)
+GEN_OPIVV_TRANS(vrem_vv, opivv_check)
+GEN_OPIVX_TRANS(vdivu_vx, opivx_check)
+GEN_OPIVX_TRANS(vdiv_vx, opivx_check)
+GEN_OPIVX_TRANS(vremu_vx, opivx_check)
+GEN_OPIVX_TRANS(vrem_vx, opivx_check)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 56ba9a7422..4fc7a08954 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -1741,3 +1741,77 @@ GEN_VEXT_VX(vmulhsu_vx_b, 1, 1, clearb)
 GEN_VEXT_VX(vmulhsu_vx_h, 2, 2, clearh)
 GEN_VEXT_VX(vmulhsu_vx_w, 4, 4, clearl)
 GEN_VEXT_VX(vmulhsu_vx_d, 8, 8, clearq)
+
+/* Vector Integer Divide Instructions */
+#define DO_DIVU(N, M) (unlikely(M == 0) ? (__typeof(N))(-1) : N / M)
+#define DO_REMU(N, M) (unlikely(M == 0) ? N : N % M)
+#define DO_DIV(N, M)  (unlikely(M == 0) ? (__typeof(N))(-1) :\
+        unlikely((N == -N) && (M == (__typeof(N))(-1))) ? N : N / M)
+#define DO_REM(N, M)  (unlikely(M == 0) ? N :\
+        unlikely((N == -N) && (M == (__typeof(N))(-1))) ? 0 : N % M)
+
+RVVCALL(OPIVV2, vdivu_vv_b, OP_UUU_B, H1, H1, H1, DO_DIVU)
+RVVCALL(OPIVV2, vdivu_vv_h, OP_UUU_H, H2, H2, H2, DO_DIVU)
+RVVCALL(OPIVV2, vdivu_vv_w, OP_UUU_W, H4, H4, H4, DO_DIVU)
+RVVCALL(OPIVV2, vdivu_vv_d, OP_UUU_D, H8, H8, H8, DO_DIVU)
+RVVCALL(OPIVV2, vdiv_vv_b, OP_SSS_B, H1, H1, H1, DO_DIV)
+RVVCALL(OPIVV2, vdiv_vv_h, OP_SSS_H, H2, H2, H2, DO_DIV)
+RVVCALL(OPIVV2, vdiv_vv_w, OP_SSS_W, H4, H4, H4, DO_DIV)
+RVVCALL(OPIVV2, vdiv_vv_d, OP_SSS_D, H8, H8, H8, DO_DIV)
+RVVCALL(OPIVV2, vremu_vv_b, OP_UUU_B, H1, H1, H1, DO_REMU)
+RVVCALL(OPIVV2, vremu_vv_h, OP_UUU_H, H2, H2, H2, DO_REMU)
+RVVCALL(OPIVV2, vremu_vv_w, OP_UUU_W, H4, H4, H4, DO_REMU)
+RVVCALL(OPIVV2, vremu_vv_d, OP_UUU_D, H8, H8, H8, DO_REMU)
+RVVCALL(OPIVV2, vrem_vv_b, OP_SSS_B, H1, H1, H1, DO_REM)
+RVVCALL(OPIVV2, vrem_vv_h, OP_SSS_H, H2, H2, H2, DO_REM)
+RVVCALL(OPIVV2, vrem_vv_w, OP_SSS_W, H4, H4, H4, DO_REM)
+RVVCALL(OPIVV2, vrem_vv_d, OP_SSS_D, H8, H8, H8, DO_REM)
+GEN_VEXT_VV(vdivu_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vdivu_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vdivu_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vdivu_vv_d, 8, 8, clearq)
+GEN_VEXT_VV(vdiv_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vdiv_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vdiv_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vdiv_vv_d, 8, 8, clearq)
+GEN_VEXT_VV(vremu_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vremu_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vremu_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vremu_vv_d, 8, 8, clearq)
+GEN_VEXT_VV(vrem_vv_b, 1, 1, clearb)
+GEN_VEXT_VV(vrem_vv_h, 2, 2, clearh)
+GEN_VEXT_VV(vrem_vv_w, 4, 4, clearl)
+GEN_VEXT_VV(vrem_vv_d, 8, 8, clearq)
+
+RVVCALL(OPIVX2, vdivu_vx_b, OP_UUU_B, H1, H1, DO_DIVU)
+RVVCALL(OPIVX2, vdivu_vx_h, OP_UUU_H, H2, H2, DO_DIVU)
+RVVCALL(OPIVX2, vdivu_vx_w, OP_UUU_W, H4, H4, DO_DIVU)
+RVVCALL(OPIVX2, vdivu_vx_d, OP_UUU_D, H8, H8, DO_DIVU)
+RVVCALL(OPIVX2, vdiv_vx_b, OP_SSS_B, H1, H1, DO_DIV)
+RVVCALL(OPIVX2, vdiv_vx_h, OP_SSS_H, H2, H2, DO_DIV)
+RVVCALL(OPIVX2, vdiv_vx_w, OP_SSS_W, H4, H4, DO_DIV)
+RVVCALL(OPIVX2, vdiv_vx_d, OP_SSS_D, H8, H8, DO_DIV)
+RVVCALL(OPIVX2, vremu_vx_b, OP_UUU_B, H1, H1, DO_REMU)
+RVVCALL(OPIVX2, vremu_vx_h, OP_UUU_H, H2, H2, DO_REMU)
+RVVCALL(OPIVX2, vremu_vx_w, OP_UUU_W, H4, H4, DO_REMU)
+RVVCALL(OPIVX2, vremu_vx_d, OP_UUU_D, H8, H8, DO_REMU)
+RVVCALL(OPIVX2, vrem_vx_b, OP_SSS_B, H1, H1, DO_REM)
+RVVCALL(OPIVX2, vrem_vx_h, OP_SSS_H, H2, H2, DO_REM)
+RVVCALL(OPIVX2, vrem_vx_w, OP_SSS_W, H4, H4, DO_REM)
+RVVCALL(OPIVX2, vrem_vx_d, OP_SSS_D, H8, H8, DO_REM)
+GEN_VEXT_VX(vdivu_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vdivu_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vdivu_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vdivu_vx_d, 8, 8, clearq)
+GEN_VEXT_VX(vdiv_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vdiv_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vdiv_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vdiv_vx_d, 8, 8, clearq)
+GEN_VEXT_VX(vremu_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vremu_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vremu_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vremu_vx_d, 8, 8, clearq)
+GEN_VEXT_VX(vrem_vx_b, 1, 1, clearb)
+GEN_VEXT_VX(vrem_vx_h, 2, 2, clearh)
+GEN_VEXT_VX(vrem_vx_w, 4, 4, clearl)
+GEN_VEXT_VX(vrem_vx_d, 8, 8, clearq)
-- 
2.23.0




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