On Mon, 29 Jun 2020, Erick Ochoa wrote:
> We are not targeting C++ at the moment. What contexts exist in C where we
> require constant expressions? On the top of my head I have array sizes and
> initialization of static variables? In such cases, then yes we agree that we
Bit-field widths, static
Hi,
On Mon, Jun 29 2020, Erick Ochoa wrote:
> On 29.06.20 06:05, Martin Jambor wrote:
>> Hi,
>>
>> On Mon, Jun 29 2020, Erick Ochoa wrote:
>>> == How do we get what we want? ==
>>>
>>> Ideally what we want is to:
>>>
>>
>> [...]
>>
>>> * Disable constant propagation and other optimizations:
>>>
On 29.06.20 06:05, Martin Jambor wrote:
Hi,
On Mon, Jun 29 2020, Erick Ochoa wrote:
== How do we get what we want? ==
Ideally what we want is to:
[...]
* Disable constant propagation and other optimizations:
* possibly __attribute__((noipa))
[...]
== What's the WORST CASE perfo
Hi,
On Mon, Jun 29 2020, Erick Ochoa wrote:
> == How do we get what we want? ==
>
> Ideally what we want is to:
>
[...]
> * Disable constant propagation and other optimizations:
>* possibly __attribute__((noipa))
[...]
> == What's the WORST CASE performance of having an unknown sizeof? ==
On 29.06.20 04:08, Richard Biener wrote:
On Mon, Jun 29, 2020 at 1:05 PM Richard Biener
wrote:
On Mon, Jun 29, 2020 at 11:56 AM Erick Ochoa
wrote:
Hello,
I have been working on link time optimization for C that may change the
size of structs (at link time). We are close to sharing the r
On 29.06.20 04:05, Richard Biener wrote:
On Mon, Jun 29, 2020 at 11:56 AM Erick Ochoa
wrote:
Hello,
I have been working on link time optimization for C that may change the
size of structs (at link time). We are close to sharing the results we
have so far, but there are a couple of missing
On Mon, Jun 29, 2020 at 01:05:20PM +0200, Richard Biener via Gcc wrote:
> > // source code
> > struct astruct a;
> > memset(a, 0, sizeof(a));
> >
> > // parse time
> > memset(a, 0, 64);
Actually, I don't see the point at all, it doesn't matter if the user
used sizeof(a) or 64 knowing that the stru
On Mon, Jun 29, 2020 at 1:05 PM Richard Biener
wrote:
>
> On Mon, Jun 29, 2020 at 11:56 AM Erick Ochoa
> wrote:
> >
> > Hello,
> >
> > I have been working on link time optimization for C that may change the
> > size of structs (at link time). We are close to sharing the results we
> > have so far
On Mon, Jun 29, 2020 at 11:56 AM Erick Ochoa
wrote:
>
> Hello,
>
> I have been working on link time optimization for C that may change the
> size of structs (at link time). We are close to sharing the results we
> have so far, but there are a couple of missing pieces left to work on:
>
> Implement
Hello,
I have been working on link time optimization for C that may change the
size of structs (at link time). We are close to sharing the results we
have so far, but there are a couple of missing pieces left to work on:
Implementations of sizeof and offsetof that support this change in
stru
10 matches
Mail list logo
