[1.13] backport optimizer support for invoke(f, ::CodeInstance, args...)#60813
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MasonProtter wants to merge 2 commits intoJuliaLang:backports-release-1.13from
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…Lang#60442) ~~(I wrote this with assistance from Gemini since I'm not very used to writing LLVM IR)~~ No longer using that code This is an attempt to fix JuliaLang#60441. After bumbling around a bit, it seems that the problem is that `invoke(f, ::CodeInstance, args...)` calls are not turned into `Expr(:invoke` statements in the IR, but remains as `:call`s to the `invoke` builtin which ends up going through the runtime. ~~There's probably a better way to do this, but the way I found was to just detect these builtin calls in the LLVM IR, and send them to `emit_invoke`.~~ I'm now detecting `InvokeCICallInfo`s in the inlining step of the optimizer and turning those into `Expr(:invoke`s. It appears to resolve the issue: ```julia using BenchmarkTools mysin(x::Float64) = sin(x) @Assert mysin(1.0) == sin(1.0) const mysin_ci = Base.specialize_method(Base._which(Tuple{typeof(mysin), Float64})).cache ``` Before this PR: ```julia julia> @Btime invoke(mysin, mysin_ci, x) setup=(x=rand()) 24.952 ns (2 allocations: 32 bytes) 0.7024964043721993 ``` After this PR: ```julia julia> @Btime invoke(mysin, mysin_ci, x) setup=(x=rand()) 4.748 ns (0 allocations: 0 bytes) 0.32283046823183426 ```
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Backport of PR #60442