It's not dead code. It's prepping the switch somehow.

-rob


On Tue, Oct 14, 2014 at 3:45 PM, Rob Pike <robpike@gmail.com> wrote:

> Looks like it.
>
> -rob
>
>
> On Tue, Oct 14, 2014 at 3:11 PM, Yoann Padioleau <pad@fb.com> wrote:
>
>>  Hi,
>>
>>  It’s a copy paste bug here right?
>> https://code.google.com/p/ken-cc/source/browse/src/cmd/cc/cc.y#476
>>
>>
>>    |       LSWITCH '(' cexpr ')' stmnt
>>           {
>>                   $$ = new(OCONST, Z, Z);
>>                   $$->vconst = 0;
>>                   $$->type = types[TINT];
>>                   $3 = new(OSUB, $$, $3);
>>
>>                   $$ = new(OCONST, Z, Z);
>>                   $$->vconst = 0;
>>                   $$->type = types[TINT];
>>                   $3 = new(OSUB, $$, $3);
>>
>>                   $$ = new(OSWITCH, $3, $5);
>>           }
>>
>>
>>
>