On Tue, Jul 11, 2023 at 12:56 AM Krister Walfridsson
wrote:
>
> On Fri, 7 Jul 2023, Richard Biener wrote:
>
> >> I have implemented support for uninitialized memory in my translation
> >> validator. But I am not sure how well this corresponds to the GIMPLE
> >> semantics, so I have some questions.
On Tue, 11 Jul 2023, Richard Biener wrote:
With "plain copies", do you mean treating it as it is always defined? That
would prevent optimizations such as transforming
int t;
if (1)
t = *p;
else
t = 0;
return t + 1;
to the equivalent of
return *p + 1;
because the latt
On Tue, Jul 11, 2023 at 10:29 AM Krister Walfridsson
wrote:
>
> On Tue, 11 Jul 2023, Richard Biener wrote:
>
> >> With "plain copies", do you mean treating it as it is always defined? That
> >> would prevent optimizations such as transforming
> >>
> >>int t;
> >>if (1)
> >> t = *p;
>
How does the Coldfire m68k subtarget and sure that displacements in PIC
code are within the addressable range?
We have a source file in glibc that fails at assembly because it
contains a branch that is out of range with -fpic. The GAS error is:
…/iso-2022-jp.s: Fatal error: Tried to convert PC r
On Tue, 11 Jul 2023, Richard Biener wrote:
I'll update my implementation, and will come back with a more detailed
proposal in a few weeks when I have tried some more things.
Thanks! I've also taken the opportunity given by your work at the recent
bugs to propose a talk at this years GNU Cauld
On Tue, Jul 11, 2023 at 11:36 AM Florian Weimer via Gcc wrote:
>
> How does the Coldfire m68k subtarget and sure that displacements in PIC
> code are within the addressable range?
There is usually a branch shortening pass relying on correct
instruction lengths.
I suggest to file a bugreport with
* Richard Biener:
> On Tue, Jul 11, 2023 at 11:36 AM Florian Weimer via Gcc
> wrote:
>>
>> How does the Coldfire m68k subtarget and sure that displacements in PIC
>> code are within the addressable range?
>
> There is usually a branch shortening pass relying on correct
> instruction lengths.
>
>
On 7/11/23 04:48, Richard Biener via Gcc wrote:
On Tue, Jul 11, 2023 at 11:36 AM Florian Weimer via Gcc wrote:
How does the Coldfire m68k subtarget and sure that displacements in PIC
code are within the addressable range?
There is usually a branch shortening pass relying on correct
instru
