Closed
Description
Go version
go version go1.22.1 windows/amd64
Output of go env in your module/workspace:
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\marce\AppData\Local\go-build
set GOENV=C:\Users\marce\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\marce\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\marce\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=C:\Users\marce\scoop\apps\go\current
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=C:\Users\marce\scoop\apps\go\current\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.22.1
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=C:\Users\marce\code\spoon\compilerbug\go.mod
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\marce\AppData\Local\Temp\go-build2412120114=/tmp/go-build -gno-record-gcc-switchesWhat did you do?
I created the following main file:
package main
import (
"fmt"
"path/filepath"
)
func main() {
fmt.Println("Start")
call("")
fmt.Println("End")
}
func call(parameter string) error {
return nil
ext := filepath.Join(parameter, "lol")
if parameter != "" {
goto LABEL
}
LABEL:
if ext != "" {
fmt.Println("Label")
}
return nil
}It contains unreachable code, but the compiler does not correctly interpret this and trips up instead.
What did you see happen?
PS C:\Users\marce\code\spoon\compilerbug> go run .
# bug
CLOSURE [C:\Users\marce\code\spoon\compilerbug\main.go:23:5:var ext string]
<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
What did you expect to see?
Not an internal compiler error, but the normal behaviour.