[Bug preprocessor/60400] ICE with trigraphs

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60400

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32251
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32251&action=edit
gcc48-pr60400-test.patch

Testcase.