Created attachment 46684 [details] Preprocessed source code Hi, I'm experiencing g++ segfaults during compilation. This is a "minimal" example in terms of command line parameters, using the preprocessed source (which is not minimal): > $ /usr/bin/g++-8 -std=c++14 -O2 -flto -fno-devirtualize -c ShapeContainerTest.ii > during IPA pass: cp > /home/tobias/Documents/ArangoDB/arangodb/arangodb/tests/Geo/ShapeContainerTest.cpp: In function ‘arangodb::velocypack::Builder::openCompoundValue(unsigned char) [clone .part.119]’: > /home/tobias/Documents/ArangoDB/arangodb/arangodb/tests/Geo/ShapeContainerTest.cpp:427:2: internal compiler error: Segmentation fault > }} > ^ > Please submit a full bug report, > with preprocessed source if appropriate. > See <file:///usr/share/doc/gcc-8/README.Bugs> for instructions. This is with g++ (Ubuntu 8.3.0-6ubuntu1~18.04.1) 8.3.0. I have two other files exhibiting a similar error, if it's of interest. The one referenced above is attached. Please tell me if and how I can be of further help. Best regards, Tobias
Confirmed, I'm reducing that.
Reduced test-case: class A { public: A(); }; #pragma GCC optimize("fp-contract=off") class B : virtual A {}; void fn1() { throw B(); } The suggested fix for the duplicate works. *** This bug has been marked as a duplicate of bug 91375 ***