BASELINE: Update Chromium to 85.0.4183.14085-based

Change-Id: Iaa42f4680837c57725b1344f108c0196741f6057
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 20 insertions, 1 deletions

diff --git a/chromium/v8/src/compiler/linkage.h b/chromium/v8/src/compiler/linkage.h
index b55f3cdcb7c..346e9bda0cc 100644
--- a/chromium/v8/src/compiler/linkage.h
+++ b/chromium/v8/src/compiler/linkage.h
@@ -237,6 +237,7 @@ class V8_EXPORT_PRIVATE CallDescriptor final
                  RegList callee_saved_registers,
                  RegList callee_saved_fp_registers, Flags flags,
                  const char* debug_name = "",
+                 StackArgumentOrder stack_order = StackArgumentOrder::kDefault,
                  const RegList allocatable_registers = 0,
                  size_t stack_return_count = 0)
       : kind_(kind),
@@ -250,6 +251,7 @@ class V8_EXPORT_PRIVATE CallDescriptor final
         callee_saved_fp_registers_(callee_saved_fp_registers),
         allocatable_registers_(allocatable_registers),
         flags_(flags),
+        stack_order_(stack_order),
         debug_name_(debug_name) {}
 
   // Returns the kind of this call.
@@ -292,6 +294,19 @@ class V8_EXPORT_PRIVATE CallDescriptor final
     return stack_param_count_;
   }
 
+  int GetStackIndexFromSlot(int slot_index) const {
+#ifdef V8_REVERSE_JSARGS
+    switch (GetStackArgumentOrder()) {
+      case StackArgumentOrder::kDefault:
+        return -slot_index - 1;
+      case StackArgumentOrder::kJS:
+        return slot_index + static_cast<int>(StackParameterCount());
+    }
+#else
+    return -slot_index - 1;
+#endif
+  }
+
   // The total number of inputs to this call, which includes the target,
   // receiver, context, etc.
   // TODO(titzer): this should input the framestate input too.
@@ -338,6 +353,8 @@ class V8_EXPORT_PRIVATE CallDescriptor final
     return location_sig_->GetParam(index).GetType();
   }
 
+  StackArgumentOrder GetStackArgumentOrder() const { return stack_order_; }
+
   // Operator properties describe how this call can be optimized, if at all.
   Operator::Properties properties() const { return properties_; }
 
@@ -391,6 +408,7 @@ class V8_EXPORT_PRIVATE CallDescriptor final
   // register allocator to use.
   const RegList allocatable_registers_;
   const Flags flags_;
+  const StackArgumentOrder stack_order_;
   const char* const debug_name_;
   const CFunctionInfo* c_function_info_ = nullptr;
 
@@ -438,7 +456,8 @@ class V8_EXPORT_PRIVATE Linkage : public NON_EXPORTED_BASE(ZoneObject) {
   static CallDescriptor* GetCEntryStubCallDescriptor(
       Zone* zone, int return_count, int js_parameter_count,
       const char* debug_name, Operator::Properties properties,
-      CallDescriptor::Flags flags);
+      CallDescriptor::Flags flags,
+      StackArgumentOrder stack_order = StackArgumentOrder::kDefault);
 
   static CallDescriptor* GetStubCallDescriptor(
       Zone* zone, const CallInterfaceDescriptor& descriptor,