First rough version of the JIT.

It can successfully parse SpeedMessage1.
Preliminary results: 750MB/s on Core2 2.4GHz.
This number is 2.5x proto2.
This isn't apples-to-apples, because
proto2 is parsing to a struct and we are
just doing stream parsing, but for apps
that are currently using proto2, this is the
improvement they would see if they could
move to stream-based processing.

Unfortunately perf-regression-test.py is
broken, and I'm not 100% sure why.  It would
be nice to fix it first (to ensure that
there are no performance regressions for
the table-based decoder) but I'm really
impatient to get the JIT checked in.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/upb.h b/src/upb.h
index 5dfd65e..0dfcd5e 100644
--- a/src/upb.h
+++ b/src/upb.h
@@ -165,6 +165,7 @@ typedef uint8_t upb_valuetype_t;
 #define UPB_VALUETYPE_BYTESRC 32
 #define UPB_VALUETYPE_RAW 33
 #define UPB_VALUETYPE_FIELDDEF 34
+#define UPB_TYPE_ENDGROUP 35
 
 // A single .proto value.  The owner must have an out-of-band way of knowing
 // the type, so that it knows which union member to use.