[mips][wasm-simd][liftoff] Implement i32x4_dot_i16x8_s

Bug: v8:10993
Change-Id: Ic46ce5e6e2195ff8ba2e340ddba11dd25b7ddf6e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2479225Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#70588}

src/wasm/baseline/mips/liftoff-assembler-mips.h

@@ -2147,6 +2147,12 @@ void LiftoffAssembler::emit_i32x4_max_u(LiftoffRegister dst,
   bailout(kSimd, "emit_i32x4_max_u");
 }
 
+void LiftoffAssembler::emit_i32x4_dot_i16x8_s(LiftoffRegister dst,
+                                              LiftoffRegister lhs,
+                                              LiftoffRegister rhs) {
+  bailout(kSimd, "emit_i32x4_dot_i16x8_s");
+}
+
 void LiftoffAssembler::emit_i64x2_neg(LiftoffRegister dst,
                                       LiftoffRegister src) {
   bailout(kSimd, "emit_i64x2_neg");

src/wasm/baseline/mips64/liftoff-assembler-mips64.h

@@ -2132,6 +2132,12 @@ void LiftoffAssembler::emit_i32x4_max_u(LiftoffRegister dst,
   max_u_w(dst.fp().toW(), lhs.fp().toW(), rhs.fp().toW());
 }
 
+void LiftoffAssembler::emit_i32x4_dot_i16x8_s(LiftoffRegister dst,
+                                              LiftoffRegister lhs,
+                                              LiftoffRegister rhs) {
+  dotp_s_w(dst.fp().toW(), lhs.fp().toW(), rhs.fp().toW());
+}
+
 void LiftoffAssembler::emit_i64x2_neg(LiftoffRegister dst,
                                       LiftoffRegister src) {
   xor_v(kSimd128RegZero, kSimd128RegZero, kSimd128RegZero);