https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61548
--- Comment #2 from jgreenhalgh at gcc dot gnu.org --- Actually, that test case gets you a different ICE: reduced.c:1:17: internal compiler error: Segmentation fault __thread struct __res_state foo; ^ 0x9805ee crash_signal /work/gcc-clean/src/gcc/gcc/toplev.c:337 0x750483 contains_struct_check /work/gcc-clean/src/gcc/gcc/tree.h:2840 0x750483 fold_convert_loc(unsigned int, tree_node*, tree_node*) /work/gcc-clean/src/gcc/gcc/fold-const.c:1913 0x9dccd2 default_emutls_var_init(tree_node*, tree_node*, tree_node*) /work/gcc-clean/src/gcc/gcc/tree-emutls.c:170 0x9db1e0 new_emutls_decl /work/gcc-clean/src/gcc/gcc/tree-emutls.c:336 0x9db1e0 create_emultls_var /work/gcc-clean/src/gcc/gcc/tree-emutls.c:713 0xc427e8 varpool_for_node_and_aliases(varpool_node*, bool (*)(varpool_node*, void*), void*, bool) /work/gcc-clean/src/gcc/gcc/varpool.c:697 0x9dc1cf ipa_lower_emutls /work/gcc-clean/src/gcc/gcc/tree-emutls.c:784 0x9dc1cf execute /work/gcc-clean/src/gcc/tree-emutls.c:845 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions.