[mips][wasm] Use a consistent limit for large frames

Port f7de8c80

Bug: v8:12017
Change-Id: I5099254936e2402d4dcf19a52c8ca8726d07f621
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3070384
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#76106}

src/compiler/backend/mips/code-generator-mips.cc

@@ -4139,7 +4139,7 @@ void CodeGenerator::AssembleConstructFrame() {
   if (required_slots > 0) {
     DCHECK(frame_access_state()->has_frame());
 #if V8_ENABLE_WEBASSEMBLY
-    if (info()->IsWasm() && required_slots > 128) {
+    if (info()->IsWasm() && required_slots * kSystemPointerSize > 4 * KB) {
       // For WebAssembly functions with big frames we have to do the stack
       // overflow check before we construct the frame. Otherwise we may not
       // have enough space on the stack to call the runtime for the stack
@@ -4149,7 +4149,7 @@ void CodeGenerator::AssembleConstructFrame() {
       // If the frame is bigger than the stack, we throw the stack overflow
       // exception unconditionally. Thereby we can avoid the integer overflow
       // check in the condition code.
-      if ((required_slots * kSystemPointerSize) < (FLAG_stack_size * 1024)) {
+      if (required_slots * kSystemPointerSize < FLAG_stack_size * KB) {
         __ Lw(
              kScratchReg,
              FieldMemOperand(kWasmInstanceRegister,
@@ -4161,12 +4161,11 @@ void CodeGenerator::AssembleConstructFrame() {
       }
 
       __ Call(wasm::WasmCode::kWasmStackOverflow, RelocInfo::WASM_STUB_CALL);
-      // We come from WebAssembly, there are no references for the GC.
+      // The call does not return, hence we can ignore any references and just
+      // define an empty safepoint.
       ReferenceMap* reference_map = zone()->New<ReferenceMap>(zone());
       RecordSafepoint(reference_map);
-      if (FLAG_debug_code) {
-        __ stop();
-      }
+      if (FLAG_debug_code) __ stop();
 
       __ bind(&done);
     }

src/compiler/backend/mips64/code-generator-mips64.cc

@@ -4349,7 +4349,7 @@ void CodeGenerator::AssembleConstructFrame() {
   if (required_slots > 0) {
     DCHECK(frame_access_state()->has_frame());
 #if V8_ENABLE_WEBASSEMBLY
-    if (info()->IsWasm() && required_slots > 128) {
+    if (info()->IsWasm() && required_slots * kSystemPointerSize > 4 * KB) {
       // For WebAssembly functions with big frames we have to do the stack
       // overflow check before we construct the frame. Otherwise we may not
       // have enough space on the stack to call the runtime for the stack
@@ -4359,7 +4359,7 @@ void CodeGenerator::AssembleConstructFrame() {
       // If the frame is bigger than the stack, we throw the stack overflow
       // exception unconditionally. Thereby we can avoid the integer overflow
       // check in the condition code.
-      if ((required_slots * kSystemPointerSize) < (FLAG_stack_size * 1024)) {
+      if (required_slots * kSystemPointerSize < FLAG_stack_size * KB) {
         __ Ld(
              kScratchReg,
              FieldMemOperand(kWasmInstanceRegister,
@@ -4371,12 +4371,11 @@ void CodeGenerator::AssembleConstructFrame() {
       }
 
       __ Call(wasm::WasmCode::kWasmStackOverflow, RelocInfo::WASM_STUB_CALL);
-      // We come from WebAssembly, there are no references for the GC.
+      // The call does not return, hence we can ignore any references and just
+      // define an empty safepoint.
       ReferenceMap* reference_map = zone()->New<ReferenceMap>(zone());
       RecordSafepoint(reference_map);
-      if (FLAG_debug_code) {
-        __ stop();
-      }
+      if (FLAG_debug_code) __ stop();
 
       __ bind(&done);
     }