[llvm-bugs] [Bug 24531] segfault in clang::LocalInstantiationScope::getPartiallySubstitutedPack

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=24531

octoploid <octoploid at yandex.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|INVALID                     |---

--- Comment #2 from octoploid <octoploid at yandex.com> ---
Reopening. Building with -fsanitize=undefined shows:

trippels at gcc2-power8 llvm_build % ./bin/clang++ -std=c++14 -c ~/assert.ii
/home/trippels/llvm/tools/clang/lib/Sema/SemaTemplateVariadic.cpp:609:77:
runtime error: member call on null pointer of type 'struct
LocalInstantiationScope'
/home/trippels/assert.ii:2:26: error: too few template arguments for class
template 'A'
template <typename... T> A<T...> models;
                         ^
/home/trippels/assert.ii:3:29: note: in instantiation of variable template
specialization 'models' requested here
template <int> void fn1() { models<>; }
                            ^
/home/trippels/assert.ii:1:28: note: template is declared here
template <typename> struct A;
~~~~~~~~~~~~~~~~~~~        ^
1 error generated.

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