[turbofan] Remove the function reload hack for OSR.

src/compiler/arm64/code-generator-arm64.cc

 // Copyright 2014 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 1430 matching lines @@
   if (info()->is_osr()) {
     // TurboFan OSR-compiled functions cannot be entered directly.
     __ Abort(kShouldNotDirectlyEnterOsrFunction);
 
     // Unoptimized code jumps directly to this entrypoint while the unoptimized
     // frame is still on the stack. Optimized code uses OSR values directly from
     // the unoptimized frame. Thus, all that needs to be done is to allocate the
     // remaining stack slots.
     if (FLAG_code_comments) __ RecordComment("-- OSR entrypoint --");
     osr_pc_offset_ = __ pc_offset();
-    // TODO(titzer): cannot address target function == local #-1
-    __ ldr(x1, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
     stack_shrink_slots -= OsrHelper(info()).UnoptimizedFrameSlots();
   }
 
   // If frame()->needs_frame() is false, then
   // frame()->AlignSavedCalleeRegisterSlots() is guaranteed to return 0.
   if (csp.Is(masm()->StackPointer()) && frame()->needs_frame()) {
     // The system stack pointer requires 16-byte alignment at function call
     // boundaries.
 
     stack_shrink_slots += frame()->AlignSavedCalleeRegisterSlots();
@@ skipping 250 matching lines @@
       padding_size -= kInstructionSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8