diff options
Diffstat (limited to 'cfg.c')
| -rw-r--r-- | cfg.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/cfg.c b/cfg.c index e695f39..2f681ce 100644 --- a/cfg.c +++ b/cfg.c @@ -285,9 +285,10 @@ uffind(Blk **pb, Blk **uf, Fn *fn) Blk **pb1; pb1 = &uf[(*pb)->id]; - if (*pb1 != *pb) + if (*pb1) { uffind(pb1, uf, fn); - *pb = *pb1; + *pb = *pb1; + } } /* requires rpo and no phis, breaks cfg */ @@ -297,12 +298,9 @@ simpljmp(Fn *fn) Blk **uf; /* union-find */ Blk *b; - uint n; int c; - uf = alloc(fn->nblk * sizeof uf[0]); - for (n=0; n<fn->nblk; n++) - uf[n] = fn->rpo[n]; + uf = emalloc(fn->nblk * sizeof uf[0]); for (b=fn->start; b; b=b->link) { assert(!b->phi); if (b->nins == 0) @@ -321,4 +319,5 @@ simpljmp(Fn *fn) b->s2 = 0; } } + free(uf); } |