Add TCG optimizations stub

Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize
is called from tcg_gen_code_common. It calls other functions performing
specific optimizations. Stub for constant folding was added.

Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/tcg/tcg.c b/tcg/tcg.c
index c05413baa4..92f1989019 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -24,6 +24,7 @@
 
 /* define it to use liveness analysis (better code) */
 #define USE_LIVENESS_ANALYSIS
+#define USE_TCG_OPTIMIZATIONS
 
 #include "config.h"
 
@@ -2035,6 +2036,11 @@ static inline int tcg_gen_code_common(TCGContext *s, uint8_t *gen_code_buf,
     }
 #endif
 
+#ifdef USE_TCG_OPTIMIZATIONS
+    gen_opparam_ptr =
+        tcg_optimize(s, gen_opc_ptr, gen_opparam_buf, tcg_op_defs);
+#endif
+
 #ifdef CONFIG_PROFILER
     s->la_time -= profile_getclock();
 #endif