[Bug middle-end/123358] ICE: in expand_asm_stmt, at cfgexpand.cc when using enum constant with "m" constraint

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123358

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Created attachment 63218
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63218&action=edit
Tentative fix