# Plans to move to LLVM 6.0?

**URL:** <https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605>\
**Category:** Internals & Design\
**Created:** [March 9, 2018, 3:50am UTC](https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605 "2018-03-09T03:50:53Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Phil\_Tomson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/phil_tomson/32/3575_2.png) [@Phil\_Tomson](https://discourse.julialang.org/u/Phil_Tomson)\
**Post date:** [March 9, 2018, 3:50am UTC](https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605/1 "2018-03-09T03:50:53Z")

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Now that LLVM 6.0 is released, are there plans to move Julia to LLVM 6.0?

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**Author:** ![shorty66](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/shorty66/32/3254_2.png) [@shorty66](https://discourse.julialang.org/u/shorty66)\
**Post date:** [March 9, 2018, 10:44am UTC](https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605/2 "2018-03-09T10:44:40Z")

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There is this PR: [https://github.com/JuliaLang/julia/pull/26229](https://github.com/JuliaLang/julia/pull/26229)

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**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [March 9, 2018, 10:57am UTC](https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605/3 "2018-03-09T10:57:48Z")

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Upgrading LLVM typically comes with a lot of additional work in tracking down performance regressions (compile-time and runtime). It is unlikely the cost benefit is in favor of upgrading LLVM for Julia 1.0 but after that, I am quite sure that LLVM will be upgraded quite quickly.

Edit: See link in post below for perhaps more up to date info.

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**Author:** ![jtravs](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jtravs/32/2010_2.png) [@jtravs](https://discourse.julialang.org/u/jtravs)\
**Post date:** [March 9, 2018, 9:13pm UTC](https://discourse.julialang.org/t/plans-to-move-to-llvm-6-0/9605/4 "2018-03-09T21:13:16Z")

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Looks like this might actually happen pre 0.7/1.0: [https://github.com/JuliaLang/julia/pull/26398](https://github.com/JuliaLang/julia/pull/26398)