but (0:int + x) would not do the same thing? What is special about using SUB
instead
of ADD?
On Oct 17, 2014, at 12:07 PM, Charles Forsyth
charles.fors...@gmail.commailto:charles.fors...@gmail.com wrote:
On 17 October 2014 18:48, Yoann Padioleau p...@fb.commailto:p...@fb.com
wrote:
On 21 October 2014 18:34, Yoann Padioleau p...@fb.com wrote:
but (0:int + x) would not do the same thing? What is special about using
SUB instead
of ADD?
you can't subtract pointers from 0 but you can add 0 to a pointer, since +
is commutative
Somehow?
Would be nice to have a comment explaining this “somehow then
because it looks tricky.
Also is there a place explaining the naming conventions?
I have a hard time understanding what is the difference
between tcom(), acom(), xcom(), and then there’s complex() …
On Oct 14, 2014, at
0:int - x was not enough for those balancing(?) and promoting thing?
On Oct 17, 2014, at 12:07 PM, Charles Forsyth
charles.fors...@gmail.commailto:charles.fors...@gmail.com wrote:
it's building a tree for (0:int-(0:int-x)) which later transformations will
simplify to x, but having done the
On Fri, Oct 17, 2014 at 4:00 PM, Yoann Padioleau p...@fb.com wrote:
0:int - x was not enough for those balancing(?) and promoting thing?
It's enough for type promotion, but you changed the semantics of the
program.
:) Got it :)
On Oct 17, 2014, at 1:04 PM, minux
minux...@gmail.commailto:minux...@gmail.com wrote:
On Fri, Oct 17, 2014 at 4:00 PM, Yoann Padioleau
p...@fb.commailto:p...@fb.com wrote:
0:int - x was not enough for those balancing(?) and promoting thing?
It's enough for type promotion, but
On 17 October 2014 18:48, Yoann Padioleau p...@fb.com wrote:
Also is there a place explaining the naming conventions?
I have a hard time understanding what is the difference
between tcom(), acom(), xcom(), and then there’s complex() …
the compiler assumes you've know your Aho and Ullmann
Looks like it.
-rob
On Tue, Oct 14, 2014 at 3:11 PM, Yoann Padioleau p...@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,
It's not dead code. It's prepping the switch somehow.
-rob
On Tue, Oct 14, 2014 at 3:45 PM, Rob Pike robp...@gmail.com wrote:
Looks like it.
-rob
On Tue, Oct 14, 2014 at 3:11 PM, Yoann Padioleau p...@fb.com wrote:
Hi,
It’s a copy paste bug here right?
