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-rw-r--r--test/fixedbugs/issue34123.go43
1 files changed, 43 insertions, 0 deletions
diff --git a/test/fixedbugs/issue34123.go b/test/fixedbugs/issue34123.go
new file mode 100644
index 0000000..f50cd02
--- /dev/null
+++ b/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()
+}