Make struct mro_meta 4(ish) bytes smaller.

p4raw-id: //depot/perl@30999

diff --git a/hv.h b/hv.h
index a5ea429..7047ea0 100644 (file)
--- a/hv.h
+++ b/hv.h
@@ -51,13 +51,13 @@ struct mro_meta {
     AV          *mro_linear_c3; /* cached c3 @ISA linearization */
     HV         *mro_isarev;    /* reverse @ISA dependencies (who depends on us?) */
     HV         *mro_nextmethod; /* next::method caching */
-    mro_alg     mro_which;      /* which mro alg is in use? */
-    U32         sub_generation; /* Like PL_sub_generation, but stash-local */
-    I32         is_universal;   /* We are UNIVERSAL or a potentially indirect
-                                   member of @UNIVERSAL::ISA */
-    I32         fake;           /* setisa made this fake package,
-                                   gv_fetchmeth pays attention to this,
-                                   and "package" sets it back to zero */
+    U32                sub_generation; /* Like PL_sub_generation, but stash-local */
+    mro_alg    mro_which;      /* which mro alg is in use? */
+    unsigned int is_universal : 1;  /* We are UNIVERSAL or a potentially
+                                      indirect member of @UNIVERSAL::ISA */
+    unsigned int fake : 1;          /* setisa made this fake package,
+                                      gv_fetchmeth pays attention to this,
+                                      and "package" sets it back to zero */
 };
 
 /* Subject to change.