qbe

commit fb838ce09547bc85da10dd447851536867e6f9a9
parent 77cfb14f58aeaca5c4c1f10d6d679e05a3d128af
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Thu,  4 Feb 2016 12:18:21 -0500

fix spill bug on return nodes

When a node has no successor, its inregs out was
initialized with garbage.

Diffstat:
M
lisc/spill.c
 | 
2
+-

1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lisc/spill.c b/lisc/spill.c
@@ -378,9 +378,9 @@ spill(Fn *fn)
 		if (s2 && s2->id <= n)
 		if (!hd || s2->id >= hd->id)
 			hd = s2;
+		BZERO(v);
 		if (hd) {
 			/* back-edge */
-			BZERO(v);
 			for (k=0; k<2; k++) {
 				n = k == 0 ? NIReg : NFReg;
 				for (z=0; z<BITS; z++) {