http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56742
Bug #: 56742
Summary: Optimization bug lead to uncaught throw
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: kti...@gcc.gnu.org
Target: x86_64-w64-mingw32, x86_64-pc-cygwin
Hi,
the following testcase:
#include <string>
static int main_worker(int argc)
{
std::string s[32]; // [31] => no segfault
if (argc < 2)
throw 42;
return argc;
}
int main(int argc, char **argv)
{
try {
return main_worker(argc);
}
catch (int i) {
return i;
}
}
produces with optimization -O2 on execution the message:
"terminate called after throwing an instance of 'int'"
and abort gets called.
If compiled with optimization level -O1, execution works as expected.
