diff --git a/src/cmd/compile/internal/dwarfgen/scope.go b/src/cmd/compile/internal/dwarfgen/scope.go index 1c040edc28..4957e24e44 100644 --- a/src/cmd/compile/internal/dwarfgen/scope.go +++ b/src/cmd/compile/internal/dwarfgen/scope.go @@ -37,7 +37,9 @@ func assembleScopes(fnsym *obj.LSym, fn *ir.Func, dwarfVars []*dwarf.Var, varSco } scopeVariables(dwarfVars, varScopes, dwarfScopes) - scopePCs(fnsym, fn.Marks, dwarfScopes) + if fnsym.Func().Text != nil { + scopePCs(fnsym, fn.Marks, dwarfScopes) + } return compactScopes(dwarfScopes) } diff --git a/test/fixedbugs/issue44344.go b/test/fixedbugs/issue44344.go new file mode 100644 index 0000000000..06c4cb6cb8 --- /dev/null +++ b/test/fixedbugs/issue44344.go @@ -0,0 +1,30 @@ +// compile + +// Copyright 2021 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. + +// Issue #44344: a crash in DWARF scope generation (trying to +// scope the PCs of a function that was inlined away). + +package main + +func main() { + pv := []int{3, 4, 5} + if pv[1] != 9 { + pv = append(pv, 9) + } + tryit := func() bool { + lpv := len(pv) + if lpv == 101 { + return false + } + if worst := pv[pv[1]&1]; worst != 101 { + return true + } + return false + }() + if tryit { + println(pv[0]) + } +}