make regalloc work with ssa form

+ Still not ideal register allocator, but can be improved with some
  heuristics and potentially completely replaced in the future if so
  desired with graph coloring or something.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/vec.c b/src/vec.c
index 4ba92fb..e487162 100644
--- a/src/vec.c
+++ b/src/vec.c
@@ -7,13 +7,18 @@
 struct vec vec_create(size_t ns)
 {
 	return (struct vec) {
-		.n = 0,
-		.s = 1,
-		.ns = ns,
-		.buf = malloc(ns),
+		       .n = 0,
+		       .s = 1,
+		       .ns = ns,
+		       .buf = malloc(ns),
 	};
 }
 
+void vec_reset(struct vec *v)
+{
+	v->n = 0;
+}
+
 size_t vec_len(struct vec *v)
 {
 	return v->n;