https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64112
Bug ID: 64112
Summary: Optimized away string literal leads to a core dump
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
Assignee: unassigned at gcc dot gnu.org
Reporter: fhansen at rocketmail dot com
The following program prints "str" when compiled without optimizations but core
dumps when compiled with GCC 4.8.0 and optimization level -O2.
The compilation command used: g++ -O2 test.cpp
#include <cstdio>
class X {
public:
X(const char* str) : str_(str) {}
const char* str_;
};
class Y {
public:
Y(const X& x) : x_(x) {}
void print() const { printf("%s\n", x_.str_); }
private:
const X& x_;
};
int main() {
Y y("str");
y.print();
}
This appears to be a regression in 4.8.
Version and target:
g++ (GCC) 4.8.0
i686-pc-linux-gnu
