qbe

commit 70d73e2d6eaf0bca7821222b7ba0be41d838080b
parent 7d203e7f9994d89ddabfd6903c9f9019e9485447
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Tue, 16 Feb 2016 22:17:18 -0500

fix dumb bug found by Andrew Chambers

Diffstat:
M
lisc/mem.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lisc/mem.c b/lisc/mem.c
@@ -29,8 +29,9 @@ memopt(Fn *fn)
 			if (u->type != UIns)
 				goto NextIns;
 			l = u->u.ins;
-			if (l->op < OStorel || l->op > OStoreb)
 			if (l->op < OLoadl || l->op > OLoadub)
+			if (l->op < OStorel || l->op > OStoreb
+			|| req(i->to, l->arg[0]))
 				goto NextIns;
 		}
 		/* get rid of the alloc and replace uses */