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I love how easy it is to view the machine code for a function. Julia actually ships with a handful of these introspection macros: https://docs.julialang.org/en/
by nur0n 6y ago
I love how easy it is to view the machine code for a function. Julia actually ships with a handful of these introspection macros: https://docs.julialang.org/en/v1/devdocs/reflection/#Intermediate-and-compiled-representations https://docs.julialang.org/en/v1/devdocs/reflection/#Interme.... They are invaluable when it comes to optimization.
- stabbles 6y agoIndeed, inspecting typed code, lowered code, llvm ir, and native code from the REPL is great. Combine that with @benchmark for microbenchmarking and it's amazing. Note that the 'manual dispatch' is optimized out in a very early stage: julia> @code_typed foo(1) CodeInfo( 1 ─ return 2 ) => Int64 So, no need to look at assembly here.
- g0wda 6y agoProf. Alan Edelman gave a nice lecture about this a couple of days ago https://www.youtube.com/watch?v=IuOXXQR7dAo https://www.youtube.com/watch?v=IuOXXQR7dAo