A64: clean up pending reloc info if code generation was aborted.

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 725 matching lines @@
   // owned by the assembler and deallocated upon destruction of the assembler.
   //
   // If the provided buffer is not NULL, the assembler uses the provided buffer
   // for code generation and assumes its size to be buffer_size. If the buffer
   // is too small, a fatal error occurs. No deallocation of the buffer is done
   // upon destruction of the assembler.
   Assembler(Isolate* arg_isolate, void* buffer, int buffer_size);
 
   virtual ~Assembler();
 
+  virtual void AbortedCodeGeneration() {
+    num_pending_reloc_info_ = 0;
+  }
+
   // System functions ---------------------------------------------------------
   // Start generating code from the beginning of the buffer, discarding any code
   // and data that has already been emitted into the buffer.
   //
   // In order to avoid any accidental transfer of state, Reset ASSERTs that the
   // constant pool is not blocked.
   void Reset();
 
   // GetCode emits any pending (non-emitted) code and fills the descriptor
   // desc. GetCode() is idempotent; it returns the same result if no other
@@ skipping 1454 matching lines @@
 class EnsureSpace BASE_EMBEDDED {
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_A64_ASSEMBLER_A64_H_