[Interpreter] Use FastNewSloppyArguments when possible.

src/arm64/code-stubs-arm64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 5058 matching lines @@
 
 void FastNewSloppyArgumentsStub::Generate(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- x1 : function
   //  -- cp : context
   //  -- fp : frame pointer
   //  -- lr : return address
   // -----------------------------------
   __ AssertFunction(x1);
 
+  // For Ignition we need to skip all possible handler/stub frames until
+  // we reach the JavaScript frame for the function (similar to what the
+  // runtime fallback implementation does). So make x6 point to that
+  // JavaScript frame.
+  {
+    Label loop, loop_entry;
+    __ Mov(x6, fp);
+    __ B(&loop_entry);
+    __ Bind(&loop);
+    __ Ldr(x6, MemOperand(x6, StandardFrameConstants::kCallerFPOffset));
+    __ Bind(&loop_entry);
+    __ Ldr(x3, MemOperand(x6, StandardFrameConstants::kFunctionOffset));
+    __ Cmp(x3, x1);
+    __ B(ne, &loop);
+  }
+
   // TODO(bmeurer): Cleanup to match the FastNewStrictArgumentsStub.
   __ Ldr(x2, FieldMemOperand(x1, JSFunction::kSharedFunctionInfoOffset));
   __ Ldrsw(
       x2, FieldMemOperand(x2, SharedFunctionInfo::kFormalParameterCountOffset));
-  __ Add(x3, fp, Operand(x2, LSL, kPointerSizeLog2));
+  __ Add(x3, x6, Operand(x2, LSL, kPointerSizeLog2));
   __ Add(x3, x3, Operand(StandardFrameConstants::kCallerSPOffset));
   __ SmiTag(x2);
 
   // x1 : function
   // x2 : number of parameters (tagged)
   // x3 : parameters pointer
+  // x6 : JavaScript frame pointer
   //
   // Returns pointer to result object in x0.
 
   // Make an untagged copy of the parameter count.
   // Note: arg_count_smi is an alias of param_count_smi.
   Register function = x1;
   Register arg_count_smi = x2;
   Register param_count_smi = x2;
   Register recv_arg = x3;
   Register param_count = x7;
   __ SmiUntag(param_count, param_count_smi);
 
   // Check if the calling frame is an arguments adaptor frame.
   Register caller_fp = x11;
   Register caller_ctx = x12;
   Label runtime;
   Label adaptor_frame, try_allocate;
-  __ Ldr(caller_fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
+  __ Ldr(caller_fp, MemOperand(x6, StandardFrameConstants::kCallerFPOffset));
   __ Ldr(
       caller_ctx,
       MemOperand(caller_fp, CommonFrameConstants::kContextOrFrameTypeOffset));
   __ Cmp(caller_ctx, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR));
   __ B(eq, &adaptor_frame);
 
   // No adaptor, parameter count = argument count.
 
   //   x1   function      function pointer
   //   x2   arg_count_smi number of function arguments (smi)
@@ skipping 827 matching lines @@
                            kStackUnwindSpace, NULL, spill_offset,
                            return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64