https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63573
--- Comment #24 from Jonathan Wakely <redi at gcc dot gnu.org> --- The code in comment 23 compiled OK at r215990 (I couldn't test with r216304 to confirm t his is definitely the same issue because that failed to bootstrap on powerpc for a different reason) You only need this command to trigger the ICE, the rest of the command in comment 23 is not relevant: ~/gcc/5/bin/g++ -std=gnu++11 -fno-implicit-templates -m32 -O2 -c cxx11-shim_facets.ii -o cxx11-shim_facets.o (It compiles OK without -fno-implicit-templates)