target/riscv: vector single-width floating-point reduction instructions
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200701152549.1218-48-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index b78fd8b..986308e 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -541,6 +541,10 @@
vredmax_vs 000111 . ..... ..... 010 ..... 1010111 @r_vm
vwredsumu_vs 110000 . ..... ..... 000 ..... 1010111 @r_vm
vwredsum_vs 110001 . ..... ..... 000 ..... 1010111 @r_vm
+# Vector ordered and unordered reduction sum
+vfredsum_vs 0000-1 . ..... ..... 001 ..... 1010111 @r_vm
+vfredmin_vs 000101 . ..... ..... 001 ..... 1010111 @r_vm
+vfredmax_vs 000111 . ..... ..... 001 ..... 1010111 @r_vm
vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm
vsetvl 1000000 ..... ..... 111 ..... 1010111 @r
