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bug: Lua can generate wrong code in functions with too many constants

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This commit is contained in:
Roberto Ierusalimschy
2016-07-19 14:12:07 -03:00
parent de96e26afc
commit fc6b32bcaa
2 changed files with 32 additions and 5 deletions
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9
lcode.c
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@@ -1,5 +1,5 @@
/*
** $Id: lcode.c,v 2.109 2016/05/13 19:09:21 roberto Exp roberto $
** $Id: lcode.c,v 2.110 2016/06/20 19:12:46 roberto Exp roberto $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@@ -1015,11 +1015,14 @@ static void codeunexpval (FuncState *fs, OpCode op, expdesc *e, int line) {
** (everything but logical operators 'and'/'or' and comparison
** operators).
** Expression to produce final result will be encoded in 'e1'.
** Because 'luaK_exp2RK' can free registers, its calls must be
** in "stack order" (that is, first on 'e2', which may have more
** recent registers to be released).
*/
static void codebinexpval (FuncState *fs, OpCode op,
expdesc *e1, expdesc *e2, int line) {
int rk1 = luaK_exp2RK(fs, e1); /* both operands are "RK" */
int rk2 = luaK_exp2RK(fs, e2);
int rk2 = luaK_exp2RK(fs, e2); /* both operands are "RK" */
int rk1 = luaK_exp2RK(fs, e1);
freeexps(fs, e1, e2);
e1->u.info = luaK_codeABC(fs, op, 0, rk1, rk2); /* generate opcode */
e1->k = VRELOCABLE; /* all those operations are relocatable */