[Interpreter] Fix bytecode offset for stack overflows.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 024bd83570c42dbf0d27074a78329fb84320a46c..af42c2a7433332483e9ee268b53e7c4cfc2dfd32 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -1002,8 +1002,13 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
               Operand(BYTECODE_ARRAY_TYPE));
   }
 
-  // Push new.target, bytecode array and zero for bytecode array offset.
-  __ Push(a3, kInterpreterBytecodeArrayRegister, zero_reg);
+  // Load initial bytecode offset.
+  __ li(kInterpreterBytecodeOffsetRegister,
+        Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
+
+  // Push new.target, bytecode array and Smi tagged bytecode array offset.
+  __ SmiTag(t0, kInterpreterBytecodeOffsetRegister);
+  __ Push(a3, kInterpreterBytecodeArrayRegister, t0);
 
   // Allocate the local and temporary register file on the stack.
   {
@@ -1033,11 +1038,8 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
     __ Branch(&loop_header, ge, t0, Operand(zero_reg));
   }
 
-  // Load bytecode offset and dispatch table into registers.
+  // Load accumulator and dispatch table into registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
-  __ Addu(t3, fp, Operand(InterpreterFrameConstants::kRegisterFileFromFp));
-  __ li(kInterpreterBytecodeOffsetRegister,
-        Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
   __ li(kInterpreterDispatchTableRegister,
         Operand(ExternalReference::interpreter_dispatch_table_address(
             masm->isolate())));