Go version
go version go1.22.0 darwin/arm64
Output of go env in your module/workspace:
GO111MODULE=''
GOARCH='arm64'
GOBIN=''
GOCACHE='/Users/karelbilek/Library/Caches/go-build'
GOENV='/Users/karelbilek/Library/Application Support/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='arm64'
GOHOSTOS='darwin'
GOINSECURE=''
GOMODCACHE='/Users/karelbilek/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='darwin'
GOPATH='/Users/karelbilek/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/darwin_arm64'
GOVCS=''
GOVERSION='go1.22.0'
GCCGO='gccgo'
AR='ar'
CC='clang'
CXX='clang++'
CGO_ENABLED='1'
GOMOD='/Users/karelbilek/pstopdfa-gs-wazero/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 -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/qk/9bbz1shn0dj8vdkg4lf76clh0000gn/T/go-build3538269826=/tmp/go-build -gno-record-gcc-switches -fno-common'
What did you do?
Small repro:
package main
func main() {
}
func SomeFunc() (map[string]int, error) {
panic("foo")
arr := []string{}
mapp := map[string]int{}
LABEL:
for _, f := range arr {
continue LABEL
mapp[f] = 2
}
return mapp, nil
}Replicable here.
https://go.dev/play/p/fLjUPRVQ90v
Note that all is needed:
- the
panic("foo")
- the labeled for loop (removing the label removes the issue)
- the
mapp variable
What did you see happen?
CLOSURE [prog.go:14:20:var arr []string ./prog.go:16:3:var mapp map[string]int]
<unknown line number>: internal compiler error: assertion failed
Please file a bug report including a short program that triggers the error.
https://go.dev/issue/new
See playground.
What did you expect to see?
This should build sucessfully.
The code itself is dumb and is just the smallest repro I can do.
go1.21 works on the same codebase (go vet warns, but that's expected).
Go version
go version go1.22.0 darwin/arm64
Output of
go envin your module/workspace:What did you do?
Small repro:
Replicable here.
https://go.dev/play/p/fLjUPRVQ90v
Note that all is needed:
panic("foo")mappvariableWhat did you see happen?
See playground.
What did you expect to see?
This should build sucessfully.
The code itself is dumb and is just the smallest repro I can do.
go1.21 works on the same codebase (go vet warns, but that's expected).