cmd/compile: internal compiler error: panic: interface conversion: ir.Node is *ir.CompLitExpr, not *ir.Name

[evanj]

What version of Go are you using (go version)?

$ go version
go version go1.20 darwin/arm64

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="arm64"

GOBIN=""

GOCACHE="/Users/evan.jones/Library/Caches/go-build"

GOENV="/Users/evan.jones/Library/Application Support/go/env"

GOEXE=""

GOEXPERIMENT=""

GOFLAGS=""

GOHOSTARCH="arm64"

GOHOSTOS="darwin"

GOINSECURE=""

GOMODCACHE="/Users/evan.jones/go/pkg/mod"

GONOPROXY=""

GOOS="darwin"

GOPATH="/Users/evan.jones/go"

GOPRIVATE=""

GOROOT="/Users/evan.jones/go120"

GOSUMDB="sum.golang.org"

GOTMPDIR=""

GOTOOLDIR="/Users/evan.jones/go120/pkg/tool/darwin_arm64"

GOVCS=""

GOVERSION="go1.20"

GCCGO="gccgo"

AR="ar"

CC="clang"

CXX="clang++"

CGO_ENABLED="1"

GOMOD="/Users/evan.jones/go120bug/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 -fdebug-prefix-map=/var/folders/g1/97d8s0r57hj4nv4_qd3fqcrm0000gp/T/go-build1938067015=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

Attempt to run the following program with Go 1.20

package main

type BugStruct struct {
	wrappedint IntWrapper
}

type IntWrapper struct {
	int
}

func (IntWrapper) Make() IntWrapper {
	return IntWrapper{5}
}

// FromWire decodes trace ID from the data transferred over the wire
func (BugStruct) Make() BugStruct {
	return BugStruct{
		wrappedint: IntWrapper{}.Make(),
	}
}

// triggers the ICE
var somevalue = BugStruct{}.Make()

// does not trigger the ICE
// var somevalue = bugsubpackage.IntWrapper{}.Make()

func main() {}

(this is a silly example, but it was extracted and minimized from a much larger program while trying to get Go 1.20 running)

What did you expect to see?

The binary runs successfully and does nothing.

What did you see instead?

# example.go/go120bug
./bug.go:23:5: internal compiler error: panic: interface conversion: ir.Node is *ir.CompLitExpr, not *ir.Name

Please file a bug report including a short program that triggers the error.
https://go.dev/issue/new

[cuonglm]

Another issue with inline static init, -gcflags=-d=inlstaticinit=0 makes the program compile and run.

[gopherbot]

Change https://go.dev/cl/465098 mentions this issue: cmd/compile: fix inline static init arguments substitued tree

[cuonglm]

@gopherbot please consider backport this to 1.20, it's a regression.

[gopherbot]

Backport issue(s) opened: #58335 (for 1.20).

Remember to create the cherry-pick CL(s) as soon as the patch is submitted to master, according to https://go.dev/wiki/MinorReleases.