lua

commit a3f9c1a77abb2add30334160055dc2ed11eb0b2e
parent 6dbae1b5d961a76d1e2ffd5d50d20b86290f483c
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date:   Tue, 25 Apr 2017 17:00:47 -0300

detail (using unsigned comparison in range check for LOADI)

Diffstat:
M
lcode.c
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lcode.c b/lcode.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lcode.c,v 2.114 2017/04/24 20:26:39 roberto Exp roberto $
+** $Id: lcode.c,v 2.115 2017/04/25 18:28:25 roberto Exp roberto $
 ** Code generator for Lua
 ** See Copyright Notice in lua.h
 */
@@ -516,7 +516,7 @@ static int nilK (FuncState *fs) {
 
 
 void luaK_int (FuncState *fs, int reg, lua_Integer i) {
-  if (-MAXARG_sBx <= i && i <= MAXARG_sBx)
+  if (l_castS2U(i) + MAXARG_sBx <= l_castS2U(MAXARG_Bx))
     luaK_codeAsBx(fs, OP_LOADI, reg, cast_int(i));
   else
     luaK_codek(fs, reg, luaK_intK(fs, i));