https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69376
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 37433 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37433&action=edit patch Patch that I have tested but which exposes another latent issue? FAIL: 21_strings/basic_string/requirements/exception/generation_prohibited.cc ex ecution test FAIL: ext/vstring/requirements/exception/generation_prohibited.cc execution test on x86_64 both -m32 and -m64 with allocating gigabytes of memory and eventually throwing bad_alloc (). -fno-tree-pre recovers from this, so does -fno-tree-vrp (as expected), so does disabling only vrp2 (or vrp1).
