fix a bad bug in regalloc boilerplate

That was silly...  I believe qbe still
managed to work because bitsets are only
used inside a basic block where rcopy()
is not used.

1 files changed, 4 insertions, 1 deletions

diff --git a/rega.c b/rega.c
index 619b0e2..f087f3c 100644
--- a/rega.c
+++ b/rega.c
@@ -50,8 +50,11 @@ sethint(int t, int r)
 static void
 rcopy(RMap *ma, RMap *mb)
 {
-	memcpy(ma, mb, sizeof *ma);
+	memcpy(ma->t, mb->t, sizeof ma->t);
+	memcpy(ma->r, mb->r, sizeof ma->r);
+	memcpy(ma->w, mb->w, sizeof ma->w);
 	bscopy(ma->b, mb->b);
+	ma->n = mb->n;
 }
 
 static int