[loong64][mips64][wasm-simd] Prototype relaxed integer Dot product instructions

Port commit a52b44f0

Bug: v8:12908
Change-Id: Ifcafab2f29d416f39fa48082e86c3c3b72508bad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690453
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80952}

src/wasm/baseline/loong64/liftoff-assembler-loong64.h

@@ -1923,6 +1923,19 @@ void LiftoffAssembler::emit_i16x8_relaxed_q15mulr_s(LiftoffRegister dst,
   bailout(kRelaxedSimd, "emit_i16x8_relaxed_q15mulr_s");
 }
 
+void LiftoffAssembler::emit_i16x8_dot_i8x16_i7x16_s(LiftoffRegister dst,
+                                                    LiftoffRegister lhs,
+                                                    LiftoffRegister rhs) {
+  bailout(kSimd, "emit_i16x8_dot_i8x16_i7x16_s");
+}
+
+void LiftoffAssembler::emit_i32x4_dot_i8x16_i7x16_add_s(LiftoffRegister dst,
+                                                        LiftoffRegister lhs,
+                                                        LiftoffRegister rhs,
+                                                        LiftoffRegister acc) {
+  bailout(kSimd, "emit_i32x4_dot_i8x16_i7x16_add_s");
+}
+
 void LiftoffAssembler::emit_i8x16_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
   bailout(kSimd, "emit_i8x16_eq");

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

@@ -2261,6 +2261,19 @@ void LiftoffAssembler::emit_i16x8_relaxed_q15mulr_s(LiftoffRegister dst,
   bailout(kRelaxedSimd, "emit_i16x8_relaxed_q15mulr_s");
 }
 
+void LiftoffAssembler::emit_i16x8_dot_i8x16_i7x16_s(LiftoffRegister dst,
+                                                    LiftoffRegister lhs,
+                                                    LiftoffRegister rhs) {
+  bailout(kSimd, "emit_i16x8_dot_i8x16_i7x16_s");
+}
+
+void LiftoffAssembler::emit_i32x4_dot_i8x16_i7x16_add_s(LiftoffRegister dst,
+                                                        LiftoffRegister lhs,
+                                                        LiftoffRegister rhs,
+                                                        LiftoffRegister acc) {
+  bailout(kSimd, "emit_i32x4_dot_i8x16_i7x16_add_s");
+}
+
 void LiftoffAssembler::emit_i8x16_eq(LiftoffRegister dst, LiftoffRegister lhs,
                                      LiftoffRegister rhs) {
   ceq_b(dst.fp().toW(), lhs.fp().toW(), rhs.fp().toW());