[Bug c++/87634] CSE for dynamic_cast

2018-10-18 Thread Simon.Richter at hogyros dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87634 --- Comment #2 from Simon Richter --- Well, I tried really hard to make a case that makes the second dynamic_cast return null after the first returned non-null. The most promising candidate uses a direct destructor call and placement new on a gl

[Bug c++/87634] CSE for dynamic_cast

2018-10-18 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87634 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Status|