Complex sentence: Many of the forms of analysis performed by lint-like tools are also performed by optimizing compilers (whose prime motivation is to generate faster code), and modern compilers can often detect many of the constructs traditionally warned about by lint.
Split into simpler sentences: Many of the forms of analysis performed by lint-like tools are also performed by optimizing compilers, whose prime motivation is to generate faster code. Modern compilers can often detect many of the constructs traditionally warned about by lint.