Hi Richard:
Thanks for your advice. But when I try a simpler example like the one
below before looking at the code, GCC still does nothing.
int main() {
int width;
scanf("%d", &width);
int sum = 0;
for (int i = 0; i < width; i++) sum += i;
printf("%d\n", sum);
}
I tried O3 an
On Mon, Oct 23, 2023 at 12:50 PM Hanke Zhang wrote:
>
> Hi Richard:
>
> Thanks for your advice. But when I try a simpler example like the one
> below before looking at the code, GCC still does nothing.
>
> int main() {
> int width;
> scanf("%d", &width);
> int sum = 0;
> for (int i
Richard Biener 于2023年10月23日周一 20:32写道：
>
> On Mon, Oct 23, 2023 at 12:50 PM Hanke Zhang wrote:
> >
> > Hi Richard:
> >
> > Thanks for your advice. But when I try a simpler example like the one
> > below before looking at the code, GCC still does nothing.
> >
> > int main() {
> > int width;
>
Hi
In a previous post I pointed to a strange code generation`by gcc in the
riscv-64 targets.
To resume:
Suppose a 64 bit operation: c = a OP b;
Gcc does the following:
Instead of loading 64 bits from memory gcc loads 8 bytes into 8
separate registers for both operands. Then it ORs
On Wed, Jan 25, 2023 at 4:09 PM Ben Boeckel via Gcc wrote:
>
> This simplifies the interface for other UTF-8 validity detections when a
> simple "yes" or "no" answer is sufficient.
>
> libcpp/
>
> * charset.cc: Add `_cpp_valid_utf8_str` which determines whether
> a C string is vali
On 10/23/23 11:16, David Malcolm wrote:
On Wed, Jan 25, 2023 at 4:09 PM Ben Boeckel via Gcc wrote:
This simplifies the interface for other UTF-8 validity detections when a
simple "yes" or "no" answer is sufficient.
libcpp/
* charset.cc: Add `_cpp_valid_utf8_str` which determines whe
On Mon, 2023-10-23 at 11:24 -0400, Jason Merrill wrote:
> On 10/23/23 11:16, David Malcolm wrote:
> > On Wed, Jan 25, 2023 at 4:09 PM Ben Boeckel via Gcc
> > wrote:
> > >
> > > This simplifies the interface for other UTF-8 validity detections
> > > when a
> > > simple "yes" or "no" answer is suff
Dear arms,
I hope this message finds you well.
I am writing to inquire about the issue of ARM gcc5 CVE-2023-4039. According to
the advisory on GitHub
(https://github.com/metaredteam/external-disclosures/security/advisories/GHSA-x7ch-h5rf-w2mf),
this bug affects versions from 5.4.0 to the tr
