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* [Bug regression/64112] New: Optimized away string literal leads to a core dump
@ 2014-11-29 5:15 fhansen at rocketmail dot com
2014-11-29 5:19 ` [Bug regression/64112] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: fhansen at rocketmail dot com @ 2014-11-29 5:15 UTC (permalink / raw)
To: gcc-bugs
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug regression/64112] Optimized away string literal leads to a core dump
2014-11-29 5:15 [Bug regression/64112] New: Optimized away string literal leads to a core dump fhansen at rocketmail dot com
@ 2014-11-29 5:19 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2014-11-29 5:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64112
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Y y("str");
Produces a temporary X which is destroyed after the statement as the life time
is not extended.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-11-29 5:15 [Bug regression/64112] New: Optimized away string literal leads to a core dump fhansen at rocketmail dot com
2014-11-29 5:19 ` [Bug regression/64112] " pinskia at gcc dot gnu.org
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