llvm/polly/lib/External/isl/isl_union_pw_templ.c

#define xCAT(A,B) …
#define CAT(A,B) …
#undef EL
#define EL …
#undef PW_BASE
#define PW_BASE …
#undef PW
#define PW …
#undef UNION_BASE
#define UNION_BASE …
#undef UNION
#define UNION …
#define xFN(TYPE,NAME) …
#define FN(TYPE,NAME) …

/* Create a union piecewise expression
 * with the given base expression on a universe domain.
 */
__isl_give UNION *FN(FN(UNION,from),BASE)(__isl_take EL *el)
{ … }