go source for verification 2026-05-22

test/fixedbugs/issue34123.go

@@ -0,0 +1,43 @@
+// run
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Make sure that the line number is reported correctly
+// for faulting instructions.
+
+package main
+
+import (
+	"fmt"
+	"runtime"
+)
+
+var x byte
+var p *byte
+
+//go:noinline
+func f() {
+	q := p
+	x = 11  // line 23
+	*q = 12 // line 24
+}
+func main() {
+	defer func() {
+		recover()
+		var pcs [10]uintptr
+		n := runtime.Callers(1, pcs[:])
+		frames := runtime.CallersFrames(pcs[:n])
+		for {
+			f, more := frames.Next()
+			if f.Function == "main.f" && f.Line != 24 {
+				panic(fmt.Errorf("expected line 24, got line %d", f.Line))
+			}
+			if !more {
+				break
+			}
+		}
+	}()
+	f()
+}