diff options
Diffstat (limited to 'cfg.c')
| -rw-r--r-- | cfg.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/cfg.c b/cfg.c index 583629b..3b0c5bb 100644 --- a/cfg.c +++ b/cfg.c @@ -76,11 +76,11 @@ fillpreds(Fn *f) } static int -rporec(Blk *b, int x) +rporec(Blk *b, uint x) { Blk *s1, *s2; - if (!b || b->id >= 0) + if (!b || b->id != -1u) return x; b->id = 1; s1 = b->s1; @@ -100,16 +100,16 @@ rporec(Blk *b, int x) void fillrpo(Fn *f) { - int n; + uint n; Blk *b, **p; for (b=f->start; b; b=b->link) - b->id = -1; + b->id = -1u; n = 1 + rporec(f->start, f->nblk-1); f->nblk -= n; f->rpo = alloc(f->nblk * sizeof f->rpo[0]); for (p=&f->start; (b=*p);) { - if (b->id == -1) { + if (b->id == -1u) { blkdel(b); *p = b->link; } else { @@ -150,8 +150,8 @@ void filldom(Fn *fn) { Blk *b, *d; - int ch, n; - uint p; + int ch; + uint n, p; for (b=fn->start; b; b=b->link) { b->idom = 0; @@ -201,7 +201,7 @@ dom(Blk *b1, Blk *b2) static void addfron(Blk *a, Blk *b) { - int n; + uint n; for (n=0; n<a->nfron; n++) if (a->fron[n] == b) @@ -245,12 +245,11 @@ loopmark(Blk *hd, Blk *b, void f(Blk *, Blk *)) void loopiter(Fn *fn, void f(Blk *, Blk *)) { - int n; - uint p; + uint n, p; Blk *b; for (b=fn->start; b; b=b->link) - b->visit = -1; + b->visit = -1u; for (n=0; n<fn->nblk; ++n) { b = fn->rpo[n]; for (p=0; p<b->npred; ++p) |