PPC: [turbofan] [deoptimizer] Support inlining of ES6 tail calls.

src/ppc/deoptimizer-ppc.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/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/register-configuration.h"
 #include "src/safepoint-table.h"
 
@@ skipping 214 matching lines @@
   // r3: deoptimizer object; r4: scratch.
   __ PrepareCallCFunction(1, r4);
   // Call Deoptimizer::ComputeOutputFrames().
   {
     AllowExternalCallThatCantCauseGC scope(masm());
     __ CallCFunction(
         ExternalReference::compute_output_frames_function(isolate()), 1);
   }
   __ pop(r3);  // Restore deoptimizer object (class Deoptimizer).
 
+  __ LoadP(sp, MemOperand(r3, Deoptimizer::caller_frame_top_offset()));
+
   // Replace the current (input) frame with the output frames.
   Label outer_push_loop, inner_push_loop, outer_loop_header, inner_loop_header;
   // Outer loop state: r7 = current "FrameDescription** output_",
   // r4 = one past the last FrameDescription**.
   __ lwz(r4, MemOperand(r3, Deoptimizer::output_count_offset()));
   __ LoadP(r7, MemOperand(r3, Deoptimizer::output_offset()));  // r7 is output_.
   __ ShiftLeftImm(r4, r4, Operand(kPointerSizeLog2));
   __ add(r4, r7, r4);
   __ b(&outer_loop_header);
 
@@ skipping 84 matching lines @@
 
 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) {
   DCHECK(FLAG_enable_embedded_constant_pool);
   SetFrameSlot(offset, value);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8