https://issues.dlang.org/show_bug.cgi?id=17969
Issue ID: 17969 Summary: dmd 2.077.0 crashes when computing mangling symbol for simple program Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Severity: critical Priority: P1 Component: dmd Assignee: nob...@puremagic.com Reporter: atila.ne...@gmail.com This code causes dmd 2.070.0 to crash: void foo() { struct Data { double value; } oops([Data()]); } void oops(Data)(Data[] data) { import std.algorithm: map; auto values = [data].map!(a => a.map!(b => b.value).sum); } Earlier versions aren't affected. Notice that `sum` isn't imported. If it is, the crash goes away. If `b.value` is replaced with `b.foo` (or any other name that doesn't exist in the struct), it also crashes, so it seems to have to do with the function failing to compile. The stack trace points to _ZN7Mangler14mangleFuncTypeEP12TypeFunctionS1_hP4Type. --