http://llvm.org/bugs/show_bug.cgi?id=20445
Bug ID: 20445
Summary: Clang doesn't emit ctor call from template
instantiations if it needs to perform initializer_list
conversion
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
Classification: Unclassified
Reproducer:
$ cat tmp/ilistbug/b.cc
#include <stdio.h>
#include <vector>
class MyClass {
public:
explicit MyClass(const std::vector<int> &v) {
printf("MyClass::MyClass()\n");
}
};
template <int x>
class MyTest {
public:
MyTest() {
auto c = new MyClass({42, 43});
printf("Created MyClass: %p\n", c);
}
};
int main() {
MyTest<42> test;
return 0;
}
$ ./bin/clang++ -std=c++11 tmp/ilistbug/b.cc && ./a.out
Created MyClass: 0xb65010
Huh? MyClass is created, but its constructor is never called.
For some reason this code works fine if I make "MyTest" non-template class.
I'm pretty sure this is a recent regression, but I haven't bisected it yet.
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