First implementation of constant propagation

Local constant variables initialized with compile-time constants
are optimized away from the code.

1 files changed, 1 insertions, 0 deletions

diff --git a/lcode.h b/lcode.h
index 0758f88d..a15b6875 100644
--- a/lcode.h
+++ b/lcode.h
@@ -56,6 +56,7 @@ LUAI_FUNC int luaK_codeAsBx (FuncState *fs, OpCode o, int A, int Bx);
 LUAI_FUNC int luaK_codeABCk (FuncState *fs, OpCode o, int A,
                                             int B, int C, int k);
 LUAI_FUNC int luaK_isKint (expdesc *e);
+LUAI_FUNC int luaK_exp2const (FuncState *fs, const expdesc *e, TValue *v);
 LUAI_FUNC void luaK_fixline (FuncState *fs, int line);
 LUAI_FUNC void luaK_nil (FuncState *fs, int from, int n);
 LUAI_FUNC void luaK_reserveregs (FuncState *fs, int n);