fatal error on -race with array

[jonasi]

Here's a minimal repro with steps on go1.18.

/tmp/test/main.go

package main

import (
	"github.com/goccy/go-json"
)

func main() {
	var x X
	json.Unmarshal([]byte(`{"arr": [1,2]}`), &x)
}

type X struct {
	Arr [2]int32 `json:"arr"`
}

error:

fatal error: checkptr: misaligned pointer conversion

goroutine 1 [running]:
runtime.throw({0x102b324fd?, 0x102a8f6f8?})
        /Users/isao/.gimme/versions/go1.18.darwin.arm64/src/runtime/panic.go:992 +0x50 fp=0xc0000a11f0 sp=0xc0000a11c0 pc=0x1029de570
runtime.checkptrAlignment(0xc0000a1238?, 0x102a2bc7c?, 0xc0000a1238?)
        /Users/isao/.gimme/versions/go1.18.darwin.arm64/src/runtime/checkptr.go:20 +0x90 fp=0xc0000a1210 sp=0xc0000a11f0 pc=0x1029b43b0
github.com/goccy/go-json/internal/decoder.newArrayDecoder({0x102bf1638?, 0xc0000e2080}, 0x102bcef40, 0x2, {0x102bc518c, 0x1}, {0x102bc7792, 0x3})
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/array.go:21 +0x64 fp=0xc0000a1280 sp=0xc0000a1210 pc=0x102a8f714
github.com/goccy/go-json/internal/decoder.compileArray(0x102bcff60?, {0x102bc518c, 0x1}, {0x102bc7792, 0x3}, 0x102a95798?)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile.go:290 +0xe4 fp=0xc0000a1320 sp=0xc0000a1280 pc=0x102a94b14
github.com/goccy/go-json/internal/decoder.compile(0x102bcff60, {0x102bc518c, 0x1}, {0x102bc7792, 0x3}, 0x102bcff60?)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile.go:90 +0x934 fp=0xc0000a1450 sp=0xc0000a1320 pc=0x102a92144
github.com/goccy/go-json/internal/decoder.compileStruct(0x102bd7060, {0x0, 0x0}, {0x0, 0x0}, 0xc0000e2000?)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile.go:345 +0x5fc fp=0xc0000a1aa0 sp=0xc0000a1450 pc=0x102a957dc
github.com/goccy/go-json/internal/decoder.compile(0x102bd7060, {0x0, 0x0}, {0x0, 0x0}, 0x1029ef388?)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile.go:82 +0xcac fp=0xc0000a1bd0 sp=0xc0000a1aa0 pc=0x102a924bc
github.com/goccy/go-json/internal/decoder.compileHead(0x102d07450?, 0x102cc22c0?)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile.go:67 +0x284 fp=0xc0000a1c80 sp=0xc0000a1bd0 pc=0x102a917c4
github.com/goccy/go-json/internal/decoder.CompileToGetDecoder(0x102bcbcc0)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/internal/decoder/compile_race.go:29 +0x1a4 fp=0xc0000a1e40 sp=0xc0000a1c80 pc=0x102a972e4
github.com/goccy/go-json.unmarshal({0xc0000a1f52, 0xe, 0xc000090010?}, {0x102bcbcc0, 0xc0000bc1c8}, {0x0, 0x0, 0x0?})
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/decode.go:37 +0xa4 fp=0xc0000a1f00 sp=0xc0000a1e40 pc=0x102b27974
github.com/goccy/go-json.Unmarshal(...)
        /Users/isao/go/pkg/mod/github.com/goccy/[email protected]/json.go:276
main.main()
        /tmp/test/main.go:9 +0x90 fp=0xc0000a1f70 sp=0xc0000a1f00 pc=0x102b28fa0
runtime.main()
        /Users/isao/.gimme/versions/go1.18.darwin.arm64/src/runtime/proc.go:250 +0x250 fp=0xc0000a1fd0 sp=0xc0000a1f70 pc=0x1029e0ab0
runtime.goexit()
        /Users/isao/.gimme/versions/go1.18.darwin.arm64/src/runtime/asm_arm64.s:1259 +0x4 fp=0xc0000a1fd0 sp=0xc0000a1fd0 pc=0x102a0b804
exit status 2