[Interpreter] Fix bytecode offset for stack overflows.

src/mips64/builtins-mips64.cc

Index: src/mips64/builtins-mips64.cc
diff --git a/src/mips64/builtins-mips64.cc b/src/mips64/builtins-mips64.cc
index ac8cfa2e134cc64afabc5c60487e3df0b36a53df..4b483ce571365ad9c09c2707558c6812f299fbd8 100644
--- a/src/mips64/builtins-mips64.cc
+++ b/src/mips64/builtins-mips64.cc
@@ -991,8 +991,13 @@ 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(a4, kInterpreterBytecodeOffsetRegister);
+  __ Push(a3, kInterpreterBytecodeArrayRegister, a4);
 
   // Allocate the local and temporary register file on the stack.
   {
@@ -1022,11 +1027,8 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
     __ Branch(&loop_header, ge, a4, Operand(zero_reg));
   }
 
-  // Load bytecode offset and dispatch table into registers.
+  // Load accumulator and dispatch table into registers.
   __ LoadRoot(kInterpreterAccumulatorRegister, Heap::kUndefinedValueRootIndex);
-  __ Daddu(a7, fp, Operand(InterpreterFrameConstants::kRegisterFileFromFp));
-  __ li(kInterpreterBytecodeOffsetRegister,
-        Operand(BytecodeArray::kHeaderSize - kHeapObjectTag));
   __ li(kInterpreterDispatchTableRegister,
         Operand(ExternalReference::interpreter_dispatch_table_address(
             masm->isolate())));