[PATCH v7 46/61] target/riscv: vector wideing integer reduction instructions

[LIU Zhiwei]

Signed-off-by: LIU Zhiwei <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
 target/riscv/helper.h                   |  7 +++++++
 target/riscv/insn32.decode              |  2 ++
 target/riscv/insn_trans/trans_rvv.inc.c |  4 ++++
 target/riscv/vector_helper.c            | 11 +++++++++++
 4 files changed, 24 insertions(+)

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 93a7a303ee..ce31577ea9 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1066,3 +1066,10 @@ DEF_HELPER_6(vredxor_vs_b, void, ptr, ptr, ptr, ptr, 
env, i32)
 DEF_HELPER_6(vredxor_vs_h, void, ptr, ptr, ptr, ptr, env, i32)
 DEF_HELPER_6(vredxor_vs_w, void, ptr, ptr, ptr, ptr, env, i32)
 DEF_HELPER_6(vredxor_vs_d, void, ptr, ptr, ptr, ptr, env, i32)
+
+DEF_HELPER_6(vwredsumu_vs_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vwredsumu_vs_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vwredsumu_vs_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vwredsum_vs_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vwredsum_vs_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vwredsum_vs_w, void, ptr, ptr, ptr, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 773b32f0b4..b69d804fda 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -537,6 +537,8 @@ vredminu_vs     000100 . ..... ..... 010 ..... 1010111 @r_vm
 vredmin_vs      000101 . ..... ..... 010 ..... 1010111 @r_vm
 vredmaxu_vs     000110 . ..... ..... 010 ..... 1010111 @r_vm
 vredmax_vs      000111 . ..... ..... 010 ..... 1010111 @r_vm
+vwredsumu_vs    110000 . ..... ..... 000 ..... 1010111 @r_vm
+vwredsum_vs     110001 . ..... ..... 000 ..... 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 2284b4cf38..52cb4bc489 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -2357,3 +2357,7 @@ GEN_OPIVV_TRANS(vredmin_vs, reduction_check)
 GEN_OPIVV_TRANS(vredand_vs, reduction_check)
 GEN_OPIVV_TRANS(vredor_vs, reduction_check)
 GEN_OPIVV_TRANS(vredxor_vs, reduction_check)
+
+/* Vector Widening Integer Reduction Instructions */
+GEN_OPIVV_WIDEN_TRANS(vwredsum_vs, reduction_check)
+GEN_OPIVV_WIDEN_TRANS(vwredsumu_vs, reduction_check)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 00ed6a75a5..5035e0bb0e 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -4405,3 +4405,14 @@ GEN_VEXT_RED(vredxor_vs_b, int8_t, int8_t, H1, H1, 
DO_XOR, clearb)
 GEN_VEXT_RED(vredxor_vs_h, int16_t, int16_t, H2, H2, DO_XOR, clearh)
 GEN_VEXT_RED(vredxor_vs_w, int32_t, int32_t, H4, H4, DO_XOR, clearl)
 GEN_VEXT_RED(vredxor_vs_d, int64_t, int64_t, H8, H8, DO_XOR, clearq)
+
+/* Vector Widening Integer Reduction Instructions */
+/* signed sum reduction into double-width accumulator */
+GEN_VEXT_RED(vwredsum_vs_b, int16_t, int8_t, H2, H1, DO_ADD, clearh)
+GEN_VEXT_RED(vwredsum_vs_h, int32_t, int16_t, H4, H2, DO_ADD, clearl)
+GEN_VEXT_RED(vwredsum_vs_w, int64_t, int32_t, H8, H4, DO_ADD, clearq)
+
+/* Unsigned sum reduction into double-width accumulator */
+GEN_VEXT_RED(vwredsumu_vs_b, uint16_t, uint8_t, H2, H1, DO_ADD, clearh)
+GEN_VEXT_RED(vwredsumu_vs_h, uint32_t, uint16_t, H4, H2, DO_ADD, clearl)
+GEN_VEXT_RED(vwredsumu_vs_w, uint64_t, uint32_t, H8, H4, DO_ADD, clearq)
-- 
2.23.0