cmd/compile: Value live at entry #54911
Description
What version of Go are you using (go version)?
$ go version go version go1.19.1 darwin/amd64
Does this issue reproduce with the latest release?
Yes.
What operating system and processor architecture are you using (go env)?
go env Output
$ go env GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/Users/josh/Library/Caches/go-build" GOENV="/Users/josh/Library/Application Support/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="darwin" GOINSECURE="" GOMODCACHE="/Users/josh/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="darwin" GOPATH="/Users/josh/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64" GOVCS="" GOVERSION="go1.19.1" GCCGO="gccgo" GOAMD64="v1" AR="ar" CC="clang" CXX="clang++" CGO_ENABLED="1" GOMOD="/Users/josh/Code/adventofcode/go.mod" GOWORK="/Users/josh/Code/adventofcode/go.work" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/nd/p9vyzdbj1r1_1_wpyd3k_lvr0000gn/T/go-build4128977174=/tmp/go-build -gno-record-gcc-switches -fno-common"
What did you do?
https://go.dev/play/p/LgwHMT5v_EV
What did you expect to see?
Compile without error.
What did you see instead?
./prog.go:12:19: internal compiler error: 'Set[go.shape.int_0].Copy': Value live at entry. It shouldn't be. func Set[go.shape.int_0].Copy, node .dict0, value nil
Please file a bug report including a short program that triggers the error.
https://go.dev/issue/new
Go build failed.