qbe

commit 5f39a368aca158e6d3e1f6c408c7b3b496805315
parent 851e79f9590b705a0fb168d16755caad03650348
Author: Quentin Carbonneaux <quentin.carbonneaux@yale.edu>
Date:   Fri, 10 Jul 2015 13:56:18 -0400

free old rpo information before overwriting

Diffstat:
M
lisc/ssa.c
 | 
1
+

1 file changed, 1 insertion(+), 0 deletions(-)
diff --git a/lisc/ssa.c b/lisc/ssa.c
@@ -61,6 +61,7 @@ fillrpo(Fn *f)
 	for (b=f->start; b; b=b->link)
 		b->rpo = -1;
 	n = rporec(f->start, f->nblk-1);
+	free(f->rpo);
 	f->rpo = alloc(n * sizeof(Blk*));
 	for (p=&f->start; *p;) {
 		b = *p;