https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63244
--- Comment #2 from David Kredba <nheghathivhistha at gmail dot com> --- x86_64-pc-linux-gnu-g++ -m32 -std=c++11 -fvisibility=hidden -flto=4 -fuse-linker-plugin -O2 -ggdb -pipe -march=core2 -mtune=core2 -mno-3dnow -mno-sse4.2 -mno-avx -mno-xop -mno-fma4 -mno-sse4a -Wall -fno-strict-aliasing -fno-builtin-memcmp -c context.ii -fPIC -DPIC -o context.o reproduces it from my home folder.