cmd/compile: internal compiler error: 'init': value .dict (nil) incorrectly live at entry #57778
Description
What version of Go are you using (go version)?
$ go1.20rc3 version go version go1.20rc3 linux/amd64
Does this issue reproduce with the latest release?
Happens with 1.20rc3 and not with 1.19.4
What operating system and processor architecture are you using (go env)?
go env Output
$ go1.20rc3 env GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/home/dvaneeden/.cache/go-build" GOENV="/home/dvaneeden/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/home/dvaneeden/go/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/home/dvaneeden/go" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/home/dvaneeden/sdk/go1.20rc3" GOSUMDB="sum.golang.org" GOTMPDIR="/home/dvaneeden/go/tmp" GOTOOLDIR="/home/dvaneeden/sdk/go1.20rc3/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.20rc3" GCCGO="gccgo" GOAMD64="v1" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/tmp/foo/go.mod" GOWORK="" CGO_CFLAGS="-O2 -g" CGO_CPPFLAGS="" CGO_CXXFLAGS="-O2 -g" CGO_FFLAGS="-O2 -g" CGO_LDFLAGS="-O2 -g" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/home/dvaneeden/go/tmp/go-build3602575493=/tmp/go-build -gno-record-gcc-switches"
What did you do?
This happens for https://pkg.go.dev/github.com/google/btree that's used in https://github.com/pingcap/tiflow
To reproduce:
package main
type FreeListG[T any] struct {
freelist []*node[T]
}
type node[T any] struct {
}
func NewFreeListG[T any](size int) *FreeListG[T] {
return &FreeListG[T]{freelist: make([]*node[T], 0, size)}
}
var (
bf = NewFreeListG[*int](1024)
)
func main() {
}Or with external dependencies:
package main
import "github.com/google/btree"
var (
bf = btree.NewFreeListG[*int](1024)
)
func main() {
}
What did you expect to see?
$ go version
go version go1.19.4 linux/amd64
$ go build foo.go
$
What did you see instead?
$ go1.20rc3 build foo.go
# command-line-arguments
./foo.go:15:2: internal compiler error: 'init': value .dict (nil) incorrectly live at entry
Please file a bug report including a short program that triggers the error.
https://go.dev/issue/new