[mips][liftoff][mv] Support multi-value returns

Port b931af5d
https://crrev.com/c/2190423

Change-Id: I9d5eeae078604e1bd5241afea14f169f45711ce3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2198056Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#67781}

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

@@ -593,6 +593,13 @@ void LiftoffAssembler::LoadCallerFrameSlot(LiftoffRegister dst,
   liftoff::Load(this, dst, fp, offset, type);
 }
 
+void LiftoffAssembler::StoreCallerFrameSlot(LiftoffRegister src,
+                                            uint32_t caller_slot_idx,
+                                            ValueType type) {
+  int32_t offset = kSystemPointerSize * (caller_slot_idx + 1);
+  liftoff::Store(this, fp, offset, src, type);
+}
+
 void LiftoffAssembler::MoveStackValue(uint32_t dst_offset, uint32_t src_offset,
                                       ValueType type) {
   DCHECK_NE(dst_offset, src_offset);

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

@@ -522,6 +522,13 @@ void LiftoffAssembler::LoadCallerFrameSlot(LiftoffRegister dst,
   liftoff::Load(this, dst, src, type);
 }
 
+void LiftoffAssembler::StoreCallerFrameSlot(LiftoffRegister src,
+                                            uint32_t caller_slot_idx,
+                                            ValueType type) {
+  int32_t offset = kSystemPointerSize * (caller_slot_idx + 1);
+  liftoff::Store(this, fp, offset, src, type);
+}
+
 void LiftoffAssembler::MoveStackValue(uint32_t dst_offset, uint32_t src_offset,
                                       ValueType type) {
   DCHECK_NE(dst_offset, src_offset);