1442
77%

Ran 14 Feb 2026 11:36AM UTC

Jobs 3

Files 350

Run time 1min

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Committed 14 Feb 2026 04:38AM UTC coverage: 76.723% (-0.02%) from 76.739%

Build # 1442

Build Type

push

buildkite

Committed by

web-flow

Commit Message

[JuliaLowering] Fix-up implementation of `GC.@preserve` (#61022)

Trying to emulate the scope token by introducing an identifier / local
doesn't work when the result is compiled:
```julia
julia> JuliaLowering.include_string(Main, raw"""
       foo() = let
           debug_buffer = IOBuffer()
           GC.@preserve debug_buffer try; println(); catch; end
       end
       foo()
       """; expr_compat_mode=true)
julia: /home/topolarity/repos/julia/src/codegen.cpp:6999: jl_cgval_t emit_expr(jl_codectx_t&, jl_value_t*, ssize_t):
Assertion `token.V->getType()->isTokenTy()' failed.
```

As far as I can tell, this must be implemented via `Expr(:gc_preserve,
...)` since the `gc_preserve_begin` token must end up ultimately as an
`SSAValue`.

Resolves https://github.com/JuliaLang/JuliaLowering.jl/issues/145.

P.S. @mlechu this is fairly barebones test coverage, so let me know if
you'd like me to add some more.

Run Details

63013 of 82130 relevant lines covered (76.72%)

23325695.42 hits per line

Uncovered Existing Lines

Lines	Coverage	∆	File
1	48.09	-0.32%	base/docs/Docs.jl
4	81.34	-0.35%	stdlib/REPL/src/REPL.jl
7	76.87	-0.18%	base/loading.jl
30	40.3	-15.15%	base/meta.jl

Jobs

ID	Job ID	Ran	Files	Coverage
1442	windows-coverage - 1442	14 Feb 2026 02:52PM UTC	318	75.62
1442	linux-coverage - 1442	14 Feb 2026 02:28PM UTC	349	75.45
1442	macos-coverage - 1442	14 Feb 2026 11:36AM UTC	350	75.42

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