https://bugs.llvm.org/show_bug.cgi?id=49741
Bug ID: 49741
Summary: Static member auto variable template with
template-template parameter, inside struct with
template-template parameter, crashes compiler
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Created attachment 24697
--> https://bugs.llvm.org/attachment.cgi?id=24697&action=edit
Compiler crash backtrace
See attachment for compiler backtrace.
Affected versions:
- trunk
- 11.0.1
- 11.0.0
- 10.0.1
- 10.0.0
- 9.0.1
- 9.0.0
Driver cmdline:
Note: For versions that do not support -std=c++20, -std=c++2a was used.
clang++ -Xclang -disable-llvm-passes -std=c++20
Note: The original code has been reduced with creduce.
Reduced code:
template <template <typename> typename> struct a {
template <template <typename> typename> static auto const b = false;
};
template <typename> struct c;
int main() { a<c>::b<c>; }
Original code:
template<template<typename...> typename T>
struct Receiver {
template<template<typename...> typename Other>
static constexpr auto const value = false;
};
template<typename...>
struct A;
void f(auto) {}
int main() {
f(Receiver<A>::value<A>);
return 0;
}
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