mem2reg rewrite

Do it in 2 passes: 1. gather variables, 2. step thru RPO transforming
loads/stores to each variable. More elegant solution to f9e3a52eaa.
More efficient since all variable usages are visited in CFG order, which
matters due to block sealing.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/ir.h b/src/ir.h
index 2070ffd..7a1190d 100644
--- a/src/ir.h
+++ b/src/ir.h
@@ -105,6 +105,7 @@ enum op {
 #define oisalloca(o) in_range(o, Oalloca1, Oalloca16)
 #define oisstore(o) in_range(o, Ostorei8, Ostoref64)
 #define oisload(o) in_range(o, Oloads8, Oloadf64)
+#define oisloadstore(o) in_range(o, Oloads8, Ostoref64)
 extern const char *opnames[];
 extern const uchar opnoper[];