qbe

commit a07c6e10f532641bed98c4f2efa075688d7b9f37
parent 2642ff022c377c3e8594a99841cc08c1f6285944
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Thu,  8 Oct 2015 23:02:19 -0400

fix minor bug in rega

The detection of empty permutations was incorrect
since the changes made to the vector routines.

Diffstat:
M
lisc/rega.c
 | 
6
+++---

1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/lisc/rega.c b/lisc/rega.c
@@ -419,7 +419,7 @@ rega(Fn *fn)
 					pmadd(src, dst, tmp[t].wide);
 				}
 			pmgen();
-			if (!n)
+			if (curi == insb)
 				continue;
 			b1 = balloc();
 			b1->loop = (b->loop+s->loop) / 2;
@@ -439,8 +439,8 @@ rega(Fn *fn)
 		}
 	}
 	for (b=fn->start; b; b=b->link)
-		while ((p=b->phi))
-			b->phi = p->link;
+		while (b->phi)
+			b->phi = b->phi->link;
 	fn->reg = regu;
 
 	if (debug['R']) {