c# - Performance wise difference between returning direct initialization and storing in variable -


is there difference (performance wise) between:

public user getuser1() {     var user = _database.user.first();     return user; }  public user getuser2()     return _database.user.first(); }

here output linqpad c# 7.0 same functions on database:

getuser1: il_0000:  ldarg.0      il_0001:  call        linqpad.user.typeddatacontext.get_users il_0006:  call        system.linq.queryable.first<user> il_000b:  ret           getuser2: il_0000:  ldarg.0      il_0001:  call        linqpad.user.typeddatacontext.get_users il_0006:  call        system.linq.queryable.first<user> il_000b:  ret

here output optimization turned off. note nops , br.s debugging/breakpoint purposes.

getuser1: il_0000:  nop          il_0001:  ldarg.0      il_0002:  call        linqpad.user.typeddatacontext.get_users il_0007:  call        system.linq.queryable.first<user> il_000c:  stloc.0     // user il_000d:  ldloc.0     // user il_000e:  stloc.1      il_000f:  br.s        il_0011 il_0011:  ldloc.1      il_0012:  ret           getuser2: il_0000:  nop          il_0001:  ldarg.0      il_0002:  call        linqpad.user.typeddatacontext.get_users il_0007:  call        system.linq.queryable.first<user> il_000c:  stloc.0      il_000d:  br.s        il_000f il_000f:  ldloc.0      il_0010:  ret

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