public Address alloc(int allocator, Extent bytes, boolean isScalar, AllocAdvice advice) { return immortal.alloc(isScalar, bytes);
public final VM_Address alloc(EXTENT bytes, boolean isScalar, int allocator, AllocAdvice advice) throws VM_PragmaInline { if (VM.VerifyAssertions) VM._assert(bytes == (bytes & (~(WORD_SIZE-1)))); VM_Address region; switch (allocator) { case  DEFAULT_ALLOCATOR: region = def.alloc(isScalar, bytes); break; case IMMORTAL_ALLOCATOR: region = immortal.alloc(isScalar, bytes); break; default:                 region = VM_Address.zero(); VM.sysFail("No such allocator"); } return region;
  public Address alloc(int allocator, Extent bytes, boolean isScalar,		       AllocAdvice advice) {    return immortal.alloc(isScalar, bytes);  }