new simplcfg pass

Useful for ifopt to match more
often. Empty blocks are fused
and conditional jumps on empty
blocks with the same successor
(and no phis in the successor)
are collapsed.

1 files changed, 1 insertions, 0 deletions

diff --git a/all.h b/all.h
index 64d5ebe..cb28457 100644
--- a/all.h
+++ b/all.h
@@ -560,6 +560,7 @@ void simpljmp(Fn *);
 int reaches(Fn *, Blk *, Blk *);
 int reachesnotvia(Fn *, Blk *, Blk *, Blk *);
 int ifgraph(Blk *, Blk **, Blk **, Blk **);
+void simplcfg(Fn *);
 
 /* mem.c */
 void promote(Fn *);