ARM: Do not stack allocate big buffers in Assembler.

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 1580 matching lines @@
   RelocInfoWriter reloc_info_writer;
 
   // Relocation info records are also used during code generation as temporary
   // containers for constants and code target addresses until they are emitted
   // to the constant pool. These pending relocation info records are temporarily
   // stored in a separate buffer until a constant pool is emitted.
   // If every instruction in a long sequence is accessing the pool, we need one
   // pending relocation entry per instruction.
 
   // The buffers of pending relocation info.
-  RelocInfo pending_32_bit_reloc_info_[kMaxNumPending32RelocInfo];
-  RelocInfo pending_64_bit_reloc_info_[kMaxNumPending64RelocInfo];
+  RelocInfo* pending_32_bit_reloc_info_;
+  RelocInfo* pending_64_bit_reloc_info_;
+  int max_num_32_bit_reloc_info_;
+  int max_num_64_bit_reloc_info_;
   // Number of pending reloc info entries in the 32 bits buffer.
   int num_pending_32_bit_reloc_info_;
   // Number of pending reloc info entries in the 64 bits buffer.
   int num_pending_64_bit_reloc_info_;
 
   ConstantPoolBuilder constant_pool_builder_;
 
   // The bound position, before this we cannot do instruction elimination.
   int last_bound_pos_;
 
@@ skipping 49 matching lines @@
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_ASSEMBLER_ARM_H_