A64: Force emission of the veneer pool emission when required.

src/a64/assembler-a64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1790 matching lines @@
 
   // The maximum code size generated for a veneer. Currently one branch
   // instruction. This is for code size checking purposes, and can be extended
   // in the future for example if we decide to add nops between the veneers.
   static const int kMaxVeneerCodeSize = 1 * kInstructionSize;
 
   void RecordVeneerPool(int location_offset, int size);
   // Emits veneers for branches that are approaching their maximum range.
   // If need_protection is true, the veneers are protected by a branch jumping
   // over the code.
-  void EmitVeneers(bool need_protection, int margin = kVeneerDistanceMargin);
+  void EmitVeneers(bool force_emit, bool need_protection,
+                   int margin = kVeneerDistanceMargin);
   void EmitVeneersGuard() { EmitPoolGuard(); }
   // Checks whether veneers need to be emitted at this point.
-  void CheckVeneerPool(bool require_jump, int margin = kVeneerDistanceMargin);
+  // If force_emit is set, a veneer is generated for *all* unresolved branches.
+  void CheckVeneerPool(bool force_emit, bool require_jump,
+                       int margin = kVeneerDistanceMargin);
 
 
   class BlockPoolsScope {
    public:
     explicit BlockPoolsScope(Assembler* assem) : assem_(assem) {
       assem_->StartBlockPools();
     }
     ~BlockPoolsScope() {
       assem_->EndBlockPools();
     }
@@ skipping 377 matching lines @@
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_ASSEMBLER_A64_H_