Panic with slice to array pointer conversion

[ronanh]

Welcome

• Yes, I'm using a binary release within 2 latest major releases. Only such installations are supported.
• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've included all information below (version, config, etc).
• Yes, I've tried with the standalone linter if available. (https://golangci-lint.run/usage/linters/)

Description of the problem

I went into a panic with a piece of code that converts a slice into an array pointer (using an intermediate named type).

Note that the use of a named type is necessary to reproduce the bug.

Version of golangci-lint

golangci-lint has version v1.43.0 built from 861262b on 2021-11-03T12:17:18Z

Configuration file

Go environment

Verbose output of running

level=info msg="[config_reader] Config search paths: [./ /app / /root]"
level=info msg="[lintersdb] Active 10 linters: [deadcode errcheck gosimple govet ineffassign staticcheck structcheck typecheck unused varcheck]"
level=info msg="[loader] Go packages loading at mode 575 (types_sizes|compiled_files|deps|imports|exports_file|files|name) took 53.279242ms"
level=info msg="[runner/filename_unadjuster] Pre-built 0 adjustments in 1.603387ms"
level=info msg="[linters context/goanalysis] analyzers took 5.559009ms with top 10 stages: ctrlflow: 1.925635ms, isgenerated: 1.081329ms, fact_deprecated: 599.653µs, printf: 513.793µs, ineffassign: 90.492µs, directives: 71.228µs, S1030: 58.82µs, sigchanyzer: 52.507µs, SA1012: 52.194µs, deadcode: 50.443µs"
level=error msg="[runner] Panic: S1029: package \"test_slicearraypconv\" (isInitialPkg: true, needAnalyzeSource: true): interface conversion: interface {} is nil, not *buildir.IR: goroutine 642 [running]:\nruntime/debug.Stack()\n\truntime/debug/stack.go:24 +0x65\ngithub.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe.func1()\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_action.go:101 +0x155\npanic({0xe51860, 0xc000ce85d0})\n\truntime/panic.go:1038 +0x215\nhonnef.co/go/tools/internal/sharedcheck.CheckRangeStringRunes(0xc000ceb6c0)\n\thonnef.co/go/tools@v0.2.1/internal/sharedcheck/lint.go:23 +0x17b\nhonnef.co/go/tools/simple.CheckRangeStringRunes(0xe358c0)\n\thonnef.co/go/tools@v0.2.1/simple/lint.go:1512 +0x19\ngithub.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyze(0xc0006b4630)\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_action.go:187 +0x9c4\ngithub.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe.func2()\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_action.go:105 +0x1d\ngithub.com/golangci/golangci-lint/pkg/timeutils.(*Stopwatch).TrackStage(0xc00020d5e0, {0xf502c3, 0x5}, 0xc000712760)\n\tgithub.com/golangci/golangci-lint/pkg/timeutils/stopwatch.go:111 +0x4a\ngithub.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*action).analyzeSafe(0xc0006b4630)\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_action.go:104 +0x85\ngithub.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*loadingPackage).analyze.func2(0x0)\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_loadingpackage.go:80 +0x67\ncreated by github.com/golangci/golangci-lint/pkg/golinters/goanalysis.(*loadingPackage).analyze\n\tgithub.com/golangci/golangci-lint/pkg/golinters/goanalysis/runner_loadingpackage.go:75 +0x1fd\n"
level=warning msg="[runner] Can't run linter goanalysis_metalinter: goanalysis_metalinter: S1029: package \"test_slicearraypconv\" (isInitialPkg: true, needAnalyzeSource: true): interface conversion: interface {} is nil, not *buildir.IR"
level=info msg="[runner] processing took 2.946µs with stages: max_same_issues: 557ns, skip_dirs: 397ns, max_from_linter: 296ns, nolint: 272ns, uniq_by_line: 132ns, cgo: 131ns, autogenerated_exclude: 125ns, skip_files: 115ns, source_code: 115ns, identifier_marker: 110ns, path_prettifier: 110ns, exclude: 110ns, filename_unadjuster: 107ns, max_per_file_from_linter: 62ns, path_shortener: 54ns, diff: 54ns, sort_results: 54ns, exclude-rules: 49ns, severity-rules: 48ns, path_prefixer: 48ns"
level=info msg="[runner] linters took 13.132899ms with stages: goanalysis_metalinter: 13.092087ms"
level=info msg="File cache stats: 0 entries of total size 0B"
level=info msg="Memory: 2 samples, avg is 44.3MB, max is 44.3MB"
level=info msg="Execution took 78.573447ms"

Code example or link to a public repository

type iar2 [2]int

func main() {
        _ = (*iar2)([]int{1, 2})
}

[boring-cyborg]

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[ldez]

Duplicate of #2292
Fixed by #2370

It will be available in the next release.