The following code crashes when I compile it with -O2 (mainline)
==========================
#include<vector>
struct A
{
std::vector<int> v;
char c;
};
struct B {};
int main()
{
A a;
A a2(a);
std::vector<B*> b;
return 0;
}
==========================
The program dies with:
*** glibc detected *** free(): invalid pointer: 0x00002aaaaabc0c60 ***
zsh: 13987 abort a.out
I'll come up with a reduced testcase next week if nobody beats me.
Happens only with mainline, -O1 is not affected.
--
Summary: [4.2 regression] wrong-code with vectors
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27768
