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);

}