https://bugs.llvm.org/show_bug.cgi?id=46584
Bug ID: 46584
Summary: win32 std::current_exception miscompilation
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Keywords: miscompilation
Severity: normal
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: nok.ra...@gmail.com
CC: craig.top...@gmail.com, llvm-bugs@lists.llvm.org,
llvm-...@redking.me.uk, spatel+l...@rotateright.com
This is probably oversimplified reproducer of Boost crash:
https://github.com/boostorg/thread/pull/320#issuecomment-653677766
#include <exception>
template <class T>
inline std::exception_ptr make_exception_ptr(T e)
{
try {
throw e;
}
catch(...) {
return std::current_exception();
}
}
struct X {};
int main()
{
try
{
std::rethrow_exception(make_exception_ptr(X{}));
}
catch(X const&)
{
}
}
clang-cl /O2 /EHsc /DNDEBUG -m32 z.cpp
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