diff options
| -rw-r--r-- | main.c | 2 | ||||
| -rw-r--r-- | mem.c | 5 |
2 files changed, 5 insertions, 2 deletions
diff --git a/main.c b/main.c index f93af37..fe68ae0 100644 --- a/main.c +++ b/main.c @@ -50,7 +50,7 @@ func(Fn *fn) fillrpo(fn); fillpreds(fn); filluse(fn); - /* memopt(fn); */ + memopt(fn); ssa(fn); filluse(fn); ssacheck(fn); diff --git a/mem.c b/mem.c index ea0bef7..11527fa 100644 --- a/mem.c +++ b/mem.c @@ -86,15 +86,18 @@ memopt(Fn *fn) /* try to turn loads into copies so we * can eliminate them later */ switch(l->op) { - case Oload: case Oloadsw: case Oloaduw: + if (k == Kl) + goto Extend; + case Oload: if (KBASE(k) != KBASE(l->cls)) l->op = Ocast; else l->op = Ocopy; break; default: + Extend: l->op = Oextsb + (l->op - Oloadsb); break; } |