https://issues.dlang.org/show_bug.cgi?id=24547
Issue ID: 24547 Summary: Stack overflow in CppMangleVisitor.writeQualified Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: regression Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: tim.dl...@t-online.de DMD crashes when compiling the following code: ``` extern(C++): struct S(bool defined) { enum DefinedType { Defined } } void f(T)(S!(true).DefinedType = S!(true).DefinedType.Defined) { } void main() { f!(int)(); } ``` A gdb backtrace repeats the following three lines: ``` #50 0x0000555555952ab7 in CppMangleVisitor::visit(TemplateInstance*) (this=0x7fffffffb848, t=0x7ffff789a8a0) at src/dmd/cppmangle.d:2095 #51 0x00005555559d6f8e in TemplateInstance::accept(Visitor*) (this=0x7ffff789a8a0, v=0x7fffffffb848) at src/dmd/dtemplate.d:5496 #52 0x0000555555951b67 in _D3dmd9cppmangle16CppMangleVisitor14writeQualifiedMFCQBz9dtemplate16TemplateInstanceMDFZvZv (this=0x7fffffffb848, dg=..., t=0x7ffff789a8a0) at src/dmd/cppmangle.d:1671 ``` According to run.dlang.org it compiled until 2.083.1 and DMD crashes since 2.084.1, but I did not check if the mangling was correct, when it compiled. --