https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #13 from Xi Ruoyao ---
(In reply to rguent...@suse.de from comment #12)
> On Wed, 12 Apr 2023, marxin at gcc dot gnu.org wrote:
>
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
> >
> > --- Comment #9 from Martin Li?ka
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #12 from rguenther at suse dot de ---
On Wed, 12 Apr 2023, marxin at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
>
> --- Comment #9 from Martin Li?ka ---
> (In reply to Richard Biener from comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #11 from Martin Liška ---
>
> Maybe it just happens the end to be on the stack of the inner most function
> so it just happens that it is an variable address still.
No, that's not the case, see my previous comment.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #10 from Andrew Pinski ---
(In reply to Richard Biener from comment #8)
> (In reply to Jakub Jelinek from comment #7)
> > (In reply to Richard Biener from comment #6)
> > > not sure if we should prevent all of those transforms. But
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #9 from Martin Liška ---
(In reply to Richard Biener from comment #8)
> (In reply to Jakub Jelinek from comment #7)
> > (In reply to Richard Biener from comment #6)
> > > not sure if we should prevent all of those transforms. But
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #8 from Richard Biener ---
(In reply to Jakub Jelinek from comment #7)
> (In reply to Richard Biener from comment #6)
> > not sure if we should prevent all of those transforms. But the question is
> > why ASAN doesn't instrument
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #7 from Jakub Jelinek ---
(In reply to Richard Biener from comment #6)
> not sure if we should prevent all of those transforms. But the question is
> why ASAN doesn't instrument the generated aggregate copy? Maybe because
> in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #6 from Richard Biener ---
(In reply to Martin Liška from comment #5)
> > It seems Clang disables this optimization and convert memcpy to
> > __asan_memcpy calls if -fsanitize=address used:
> >
> > https://godbolt.org/z/dcfadoMYY
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
Martin Liška changed:
What|Removed |Added
CC||rguenth at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #4 from Xi Ruoyao ---
(In reply to Martin Liška from comment #3)
> The problem here is that we normally preserve memcpy calls and then
> __interceptor_memcpy is used from the run-time library. However, in this
> case the second
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #3 from Martin Liška ---
The problem here is that we normally preserve memcpy calls and then
__interceptor_memcpy is used from the run-time library. However, in this case
the second argument of memcpy is a known constant and we
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
Xi Ruoyao changed:
What|Removed |Added
CC||xry111 at gcc dot gnu.org
Ever
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109446
--- Comment #1 from Mohamed ---
correction to scenario II should pass by value as follows
//void test(Bar b) // scenario II
13 matches
Mail list logo
