https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65002
Bug ID: 65002 Summary: [4.9 Regression] ICE: Segmentation fault Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: doko at gcc dot gnu.org seen with trunk 20150210 on x86_64-linux-gnu $ g++ -c -O2 IFCCurve.ii IFCCurve.ii: In member function 'virtual int B::m_fn1(float) const': IFCCurve.ii:22:1: internal compiler error: Segmentation fault } ^ Please submit a full bug report, with preprocessed source if appropriate. $ cat IFCCurve.ii namespace fastmath { template <typename T> float floor(const T &) __attribute__((const)); template <typename T> float floor(const T &p1) { return p1; } } using fastmath::floor; class A { public: A(int, int); virtual int m_fn1(float) const; }; class B : A { public: B(int, int p2) : A(entity, p2) {} int m_fn1(float p1) const { long b(floor(p1)); } int entity; }; int a; void Convert() { if (int *c = 0) B(*c, a); }