Millennials Age" editorial coined the phrase "Generation Y" to describe those who were aged 11 or younger as well as the teenagers of the upcoming ten years who were defined as different from Generation X. According to journalist Bruce Horovitz, in 2012, "Ad Age" "threw in the towel by conceding that millennials is a better name than Gen Y", and by 2014, a past director of data strategy at "Ad Age" said to NPR "the Generation Y label was a placeholder until we found out more about them". Millennials are sometimes called "Echo Boomers", due to their being the offspring of
Code generation (compiler) last of the code generation stages (the "backend") needs to change from target to target. (For more information on compiler design, see Compiler.) The input to the code generator typically consists of a parse tree or an abstract syntax tree. The tree is converted into a linear sequence of instructions, usually in an intermediate language such as three-address code. Further stages of compilation may or may not be referred to as "code generation", depending on whether they involve a significant change in the representation of the program. (For example, a peephole optimization pass would not likely be called "code generation",