On 19 March 2017 at 00:21, Luc Van Oostenryck
<luc.vanoostenryck@xxxxxxxxx> wrote:
> On Tue, Mar 14, 2017 at 04:07:40PM +0000, Dibyendu Majumdar wrote:
>> LLVM complains when the operands of a select are not the same type. I
>> think it is okay to cast one of the operands to the type of the other
>> - on the basis that subsequent operations will cast things anyway.
>
> Submit a test case, please.
>
typedef union GCObject GCObject;
typedef union {
GCObject *gc;
void *p;
int b;
} Value;
typedef struct lua_TValue {
Value value;
int tt;
} TValue;
typedef struct CClosure {
GCObject *next;
TValue upvalue[1];
} CClosure;
typedef struct LClosure {
GCObject *next;
GCObject *gclist;
} LClosure;
typedef union Closure {
CClosure c;
LClosure l;
} Closure;
static TValue luaO_nilobject_;
TValue *select(Closure *closure, int op)
{
return op == 1 ? &closure->c.upvalue[0] : (TValue *) &luaO_nilobject_;
}
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