ref: b769b88bbc3e0ddcef7991e73b2582d472f08d89
dir: /mi/mi.h/
typedef struct Cfg Cfg;
typedef struct Bb Bb;
struct Cfg {
Node *fn;
Bb **bb;
Bb *start;
Bb *end;
size_t nbb;
/* for building bb */
int nextbbid;
Htab *lblmap; /* label => Bb mapping */
Node **fixjmp;
size_t nfixjmp;
Bb **fixblk;
size_t nfixblk;
};
struct Bb {
int id;
char **lbls;
size_t nlbls;
Node **nl;
size_t nnl;
Bitset *pred;
Bitset *succ;
};
/* expression folding */
Node *fold(Node *n, int foldvar);
/* Takes a reduced block, and returns a flow graph. */
Cfg *mkcfg(Node *fn, Node **nl, size_t nn);
void dumpcfg(Cfg *c, FILE *fd);
void check(Cfg *cfg);
/* pattern matching */
Node *gensimpmatch(Node *m);