On 2013/02/06 11:39:18, Yang wrote:
https://codereview.chromium.org/12177012/diff/3001/src/x64/assembler-x64.cc
File src/x64/assembler-x64.cc (right):


https://codereview.chromium.org/12177012/diff/3001/src/x64/assembler-x64.cc#newcode1511
src/x64/assembler-x64.cc:1511: } else if (is_int32(value)) {
On 2013/02/06 11:34:08, Zheng Liu wrote:
> On 2013/02/06 10:28:59, Yang wrote:
> > What is the purpose of this change?
>
> Code might be smaller, as [mov r64, imm32] always have a prefix.
> MacroAssembler::Set() did similar things.

But this change seems to be to the effect of changing

if (A) {
   B;
} else if (C) {
   D;
}

into

if (C) {
   D;
} else if (A) {
   B;
}

I don't see any difference besides changing the order.

I think that cond A & C overlaps, e.g. is_uint32(0x1) and is_int32(0x1) are both
true.

https://codereview.chromium.org/12177012/

--
--
v8-dev mailing list
[email protected]
http://groups.google.com/group/v8-dev
--- You received this message because you are subscribed to the Google Groups "v8-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.


Reply via email to