[mips] Fix DropAndRet with a frame that larger than int16_max

Change-Id: I3f5dbb0fbae3862a6da4146b83e49986c8be3bdc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2467015Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#70469}

src/codegen/mips/macro-assembler-mips.cc

@@ -4110,9 +4110,19 @@ void TurboAssembler::BranchAndLinkLong(Label* L, BranchDelaySlot bdslot) {
 }
 
 void TurboAssembler::DropAndRet(int drop) {
-  DCHECK(is_int16(drop * kPointerSize));
-  Ret(USE_DELAY_SLOT);
-  addiu(sp, sp, drop * kPointerSize);
+  int32_t drop_size = drop * kSystemPointerSize;
+  DCHECK(is_int31(drop_size));
+
+  if (is_int16(drop_size)) {
+    Ret(USE_DELAY_SLOT);
+    addiu(sp, sp, drop_size);
+  } else {
+    UseScratchRegisterScope temps(this);
+    Register scratch = temps.Acquire();
+    li(scratch, drop_size);
+    Ret(USE_DELAY_SLOT);
+    addu(sp, sp, scratch);
+  }
 }
 
 void TurboAssembler::DropAndRet(int drop, Condition cond, Register r1,

src/codegen/mips/macro-assembler-mips.h

@@ -252,8 +252,7 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void Drop(int count, Condition cond = cc_always, Register reg = no_reg,
             const Operand& op = Operand(no_reg));
 
-  // Trivial case of DropAndRet that utilizes the delay slot and only emits
-  // 2 instructions.
+  // Trivial case of DropAndRet that utilizes the delay slot.
   void DropAndRet(int drop);
 
   void DropAndRet(int drop, Condition cond, Register reg, const Operand& op);

src/codegen/mips64/macro-assembler-mips64.cc

@@ -4448,9 +4448,19 @@ void TurboAssembler::BranchAndLinkLong(Label* L, BranchDelaySlot bdslot) {
 }
 
 void TurboAssembler::DropAndRet(int drop) {
-  DCHECK(is_int16(drop * kPointerSize));
-  Ret(USE_DELAY_SLOT);
-  daddiu(sp, sp, drop * kPointerSize);
+  int32_t drop_size = drop * kSystemPointerSize;
+  DCHECK(is_int31(drop_size));
+
+  if (is_int16(drop_size)) {
+    Ret(USE_DELAY_SLOT);
+    daddiu(sp, sp, drop_size);
+  } else {
+    UseScratchRegisterScope temps(this);
+    Register scratch = temps.Acquire();
+    li(scratch, drop_size);
+    Ret(USE_DELAY_SLOT);
+    daddu(sp, sp, scratch);
+  }
 }
 
 void TurboAssembler::DropAndRet(int drop, Condition cond, Register r1,

src/codegen/mips64/macro-assembler-mips64.h

@@ -275,8 +275,7 @@ class V8_EXPORT_PRIVATE TurboAssembler : public TurboAssemblerBase {
   void Drop(int count, Condition cond = cc_always, Register reg = no_reg,
             const Operand& op = Operand(no_reg));
 
-  // Trivial case of DropAndRet that utilizes the delay slot and only emits
-  // 2 instructions.
+  // Trivial case of DropAndRet that utilizes the delay slot.
   void DropAndRet(int drop);
 
   void DropAndRet(int drop, Condition cond, Register reg, const Operand& op);