gh-mirror/mikepaul-LuaJIT
1
0
Fork 0
mirror of https://github.com/LuaJIT/LuaJIT.git synced 2025-02-07 15:14:08 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add missing FORI coercions in recorder.

Browse Source
This commit is contained in:
Mike Pall 2010-02-15 01:51:41 +01:00
parent b6e4fde0dc
commit 1288e04186
1 changed files with 13 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/lj_record.c
View File

@ -310,16 +310,25 @@ static TRef fori_arg(jit_State *J, const BCIns *fori, BCReg slot, IRType t)
return tr;
}
/* In-place coercion of FORI arguments. */
static lua_Number for_coerce(jit_State *J, TValue *o)
{
if (!tvisnum(o) && !(tvisstr(o) && lj_str_tonum(strV(o), o)))
lj_trace_err(J, LJ_TRERR_BADTYPE);
return numV(o);
}
/* Simulate the runtime behavior of the FOR loop iterator.
** It's important to exactly reproduce the semantics of the interpreter.
*/
static LoopEvent for_iter(jit_State *J, IROp *op, BCReg ra, int isforl)
{
cTValue *forbase = &J->L->base[ra];
lua_Number stopv = numV(&forbase[FORL_STOP]);
lua_Number idxv = numV(&forbase[FORL_IDX]);
TValue *forbase = &J->L->base[ra];
lua_Number stopv = for_coerce(J, &forbase[FORL_STOP]);
lua_Number idxv = for_coerce(J, &forbase[FORL_IDX]);
lua_Number stepv = for_coerce(J, &forbase[FORL_STEP]);
if (isforl)
idxv += numV(&forbase[FORL_STEP]);
idxv += stepv;
if ((int32_t)forbase[FORL_STEP].u32.hi >= 0) {
if (idxv <= stopv) { *op = IR_LE; return LOOPEV_ENTER; }
*op = IR_GT; return LOOPEV_LEAVE;