A PoC-ish Trick: LLVM IR Generation with Ruby

Transcript

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   A PoC-ish Trick: LLVM IR Generation with Ruby A Lightning

   Talk at RubyConf 2016 Kei Sawada (@remore)
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   None
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   a modern, fast, and open source language for data science

   and technical computing
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   Julia is 4 years old young Good performance, as fast

   as C Dynamic typing Julia has Capability to call C functions directly without wrappers or special APIs a compiler that used LLVM to translate Julia programs into ef cient executable code
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   In short,

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   Write some Julia code then you will get LLVM IR

   without hassle
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   debussy:~ guest$ julia _ _ _ _(_)_ | A fresh

   approach to technical computin (_) | (_) (_) | Documentation: http://docs.julialang.o _ _ _| |_ __ _ | Type "?help" for help. | | | | | | |/ _` | | | | |_| | | | (_| | | Version 0.4.6 (2016-06-19 17:16 UTC) _/ |\__'_|_|_|\__'_| | |__/ | x86_64-apple-darwin15.5.0 julia>
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   debussy:~ guest$ julia _ _ _ _(_)_ | A fresh

   approach to technical computin (_) | (_) (_) | Documentation: http://docs.julialang.o _ _ _| |_ __ _ | Type "?help" for help. | | | | | | |/ _` | | | | |_| | | | (_| | | Version 0.4.6 (2016-06-19 17:16 UTC) _/ |\__'_|_|_|\__'_| | |__/ | x86_64-apple-darwin15.5.0 julia> function hello() "rubyconf" end hello (generic function with 1 method) julia>
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   debussy:~ guest$ julia _ _ _ _(_)_ | A fresh

   approach to technical computin (_) | (_) (_) | Documentation: http://docs.julialang.o _ _ _| |_ __ _ | Type "?help" for help. | | | | | | |/ _` | | | | |_| | | | (_| | | Version 0.4.6 (2016-06-19 17:16 UTC) _/ |\__'_|_|_|\__'_| | |__/ | x86_64-apple-darwin15.5.0 julia> function hello() "rubyconf" end hello (generic function with 1 method) julia> hello() "rubyconf" julia>
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    julia> code_llvm(hello, ()) define %jl_value_t* @julia_hello_21549() { top: ret %jl_value_t*

    inttoptr (i64 4447575696 to %jl_value_t*) } julia>
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    julia> code_llvm(hello, ()) define %jl_value_t* @julia_hello_21549() { top: ret %jl_value_t*

    inttoptr (i64 4447575696 to %jl_value_t*) } julia> code_native(hello, ()) .section __TEXT,__text,regular,pure_instructions Filename: none Source line: 2 pushq %rbp movq %rsp, %rbp movabsq $4447575696, %rax ## imm = 0x109189E90 Source line: 2 popq %rbp ret julia>
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    OK Julia is a thing But we are in

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    None
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    What if

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    You can write some Ruby code which can be translated

    into Julia where you can get LLVM IR easily?
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    Ruby -> Julia -> LLVM IR

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    None
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    Julializer Allow you to convert your arbitrary Ruby code into

    Julia code
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    Time to DEMO!

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    For more examples and attempts, check out: github.com/remore/julializer github.com/remore/virtual_module Thanks!