Jakub Jelinek writes:
> Note, if for whatever reason one wants the common behavior e.g. on a few
> selected variables, one can add __attribute__((__common__)) to those
> variables to override the default, it doesn't have to be just -fcommon
> that changes the behavior of all non-automatic variabl
On Thu, Feb 06, 2020 at 11:01:56AM +, Dave Love wrote:
> Jakub Jelinek writes:
>
> > On Wed, Feb 05, 2020 at 05:13:27PM +, Dave Love wrote:
> >> GCC doesn't document the targets for which -fno-common produces better
> >> code. Can someone say for which of the Fedora ones it makes a
> >>
Jakub Jelinek writes:
> On Wed, Feb 05, 2020 at 05:13:27PM +, Dave Love wrote:
>> GCC doesn't document the targets for which -fno-common produces better
>> code. Can someone say for which of the Fedora ones it makes a
>> difference?
>
> E.g. on any that is capable of vectorization.
Thanks.
On Wed, Feb 05, 2020 at 05:13:27PM +, Dave Love wrote:
> GCC doesn't document the targets for which -fno-common produces better
> code. Can someone say for which of the Fedora ones it makes a
> difference?
E.g. on any that is capable of vectorization.
Common vars can't have alignment increase
GCC doesn't document the targets for which -fno-common produces better
code. Can someone say for which of the Fedora ones it makes a
difference?
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