On 2024-09-08 18:01, Andrew Pinski wrote:
When I was implementing improvements into phiopt I ran into case where
objsz would fail now because we get:
tmp = PHI
ptr = ptr + tmp
where before the pointer plus was inside each branch instead. So my
question is there any progress on implementing objs
On Tue, Nov 9, 2021 at 11:02 AM Siddhesh Poyarekar wrote:
>
>
> This patchset implements the __builtin_dynamic_object_size builtin for
> gcc. The primary motivation to have this builtin in gcc is to enable
> _FORTIFY_SOURCE=3 support with gcc, thus allowing greater fortification
> in use cases wh
On Wed, Nov 10, 2021 at 12:31:26AM +0530, Siddhesh Poyarekar wrote:
> - Instead of bailing out on non-constant sizes with
> __builtin_object_size, it should be possible to use ranger to
> get an upper and lower bound on the size expression and use that to
> implement __builtin_object_size.
I
This patchset implements the __builtin_dynamic_object_size builtin for
gcc. The primary motivation to have this builtin in gcc is to enable
_FORTIFY_SOURCE=3 support with gcc, thus allowing greater fortification
in use cases where the potential performance tradeoff is acceptable.
Semantics:
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