Hi,
Thanks!
I also find the doc describing the "HARD_FRAME_POINTER_REGNUM" and
"FRAME_POINTER_REGNUM" in "gcc internals", chapter "Registers That
Address the Stack Frame".
It is really "usual" way to handle this similar cases.
redriver
2010/3/24 Richard Henderson :
> On 03/23/2010 05:55 AM,
On 23 Mar 2010, at 22:30, Steven Bosscher wrote:
> On Tue, Mar 23, 2010 at 7:05 PM, Ian Bolton wrote:
>> Is there any reason why BB reorder has been disabled
>> in bb-reorder.c for -Os, such that you can't even
>> turn it on with -freorder-blocks?
>
> No, you should have the option to turn it on
Is there any obvious reason why this function doesn't enable folding if we're
optimizing for size? All of the other string/memory folds appear to rely on the
various move, clear or set ratios?
When optimizing small string copies it's definitely smaller to do this inline
on some ISAs.
Thanks,
Hi everybody!
I'm working on a pass and I need to handle some pointer expressions.
For example, I have this C-code:
int v[1000];
int *p;
p = &v[10];
The problem is that, when I'm trying to parse "p = &v[10];", I'm not able to
get the array offset (10 in this case).
Namely, for a given st
Massimo Nazaria writes:
> I'm working on a pass and I need to handle some pointer expressions.
> For example, I have this C-code:
> int v[1000];
> int *p;
> p = &v[10];
>
> The problem is that, when I'm trying to parse "p = &v[10];", I'm not able to
> get the array offset (10 in this cas
