http://d.puremagic.com/issues/show_bug.cgi?id=9243
--- Comment #5 from [email protected] 2012-12-30 03:44:40 PST --- (In reply to comment #4) > The complexity of D has nothing to do with the advanced'ness of the optimizer > and back end. Dmc (which shares a back end with dmd) has had an advanced data > flow analysis back end since around 1985. One of the things data flow analysis > provides is a weighted usage graph of variables, which is used for register > allocation and also for sharing stack space. There are several different things that can be named "compiler", but for me and normal programmers a "compiler" isn't just a back-end, it's the sum of front-end plus a back-end. From Wikipedia (http://en.wikipedia.org/wiki/Compiler ): >The name "compiler" is primarily used for programs that translate source code >from a high-level programming language to a lower level language (e.g., >assembly language or machine code).< > I think it was last week that LLVM announced its latest version is using > coloring information for stack layout - about 20 years behind dmc/dmd. Life is complex, reading the text of the LLVM changelog is not enough to say X is better than Y. So you should write some benchmarks and compare between LLVM and Dmc the performance, both in compilation speed and in the number of spilled registers. > Please check what dmd does before defaulting to assuming it does not. I am doing my best. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
