[turbofan] Move frame elision logic to the end

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 802024e5644f6d2892ac73444eb9b08cbc21c6d3..6129526553cd6dd20e524c6fd7b73ac70af268f0 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -267,13 +267,16 @@ class PipelineData {
     register_allocation_data_ = nullptr;
   }
 
-  void InitializeInstructionSequence() {
+  void InitializeInstructionSequence(const CallDescriptor* descriptor) {
     DCHECK(sequence_ == nullptr);
     InstructionBlocks* instruction_blocks =
         InstructionSequence::InstructionBlocksFor(instruction_zone(),
                                                   schedule());
     sequence_ = new (instruction_zone()) InstructionSequence(
         info()->isolate(), instruction_zone(), instruction_blocks);
+    if (descriptor && descriptor->RequiresFrameAsIncoming()) {
+      sequence_->instruction_blocks()[0]->mark_needs_frame();
+    }
   }
 
   void InitializeFrameData(CallDescriptor* descriptor) {
@@ -1336,7 +1339,7 @@ Handle<Code> Pipeline::ScheduleAndGenerateCode(
                                                        data->schedule());
   }
 
-  data->InitializeInstructionSequence();
+  data->InitializeInstructionSequence(call_descriptor);
 
   data->InitializeFrameData(call_descriptor);
   // Select and schedule instructions covering the scheduled graph.
@@ -1485,12 +1488,6 @@ void Pipeline::AllocateRegisters(const RegisterConfiguration* config,
     Run<MergeSplintersPhase>();
   }
 
-  // We plan to enable frame elision only for stubs and bytecode handlers.
-  if (FLAG_turbo_frame_elision && info()->IsStub()) {
-    Run<LocateSpillSlotsPhase>();
-    Run<FrameElisionPhase>();
-  }
-
   Run<AssignSpillSlotsPhase>();
 
   Run<CommitAssignmentPhase>();
@@ -1501,6 +1498,9 @@ void Pipeline::AllocateRegisters(const RegisterConfiguration* config,
     Run<OptimizeMovesPhase>();
   }
 
+  Run<LocateSpillSlotsPhase>();
+  Run<FrameElisionPhase>();
+
   if (FLAG_trace_turbo_graph) {
     OFStream os(stdout);
     PrintableInstructionSequence printable = {config, data->sequence()};