On 2021-07-01 20:35, Richard Biener wrote:
On Thu, 1 Jul 2021, Jiufu Guo wrote:
For code like:
unsigned foo(unsigned val, unsigned start)
{
unsigned cnt = 0;
for (unsigned i = start; i > val; ++i)
cnt++;
return cnt;
}
The number of iterations should be about UINT_MAX - start.
For
On 2021-07-02 08:51, Bin.Cheng wrote:
On Thu, Jul 1, 2021 at 10:15 PM guojiufu via Gcc-patches
wrote:
On 2021-07-01 20:35, Richard Biener wrote:
> On Thu, 1 Jul 2021, Jiufu Guo wrote:
>
>> For code like:
>> unsigned foo(unsigned val, unsigned start)
>> {
>> unsigned cnt = 0;
>> for
On Thu, Jul 1, 2021 at 10:15 PM guojiufu via Gcc-patches
wrote:
>
> On 2021-07-01 20:35, Richard Biener wrote:
> > On Thu, 1 Jul 2021, Jiufu Guo wrote:
> >
> >> For code like:
> >> unsigned foo(unsigned val, unsigned start)
> >> {
> >> unsigned cnt = 0;
> >> for (unsigned i = start; i > val;
On 2021-07-01 20:35, Richard Biener wrote:
On Thu, 1 Jul 2021, Jiufu Guo wrote:
For code like:
unsigned foo(unsigned val, unsigned start)
{
unsigned cnt = 0;
for (unsigned i = start; i > val; ++i)
cnt++;
return cnt;
}
The number of iterations should be about UINT_MAX - start.
For
On Thu, 1 Jul 2021, Jiufu Guo wrote:
> For code like:
> unsigned foo(unsigned val, unsigned start)
> {
> unsigned cnt = 0;
> for (unsigned i = start; i > val; ++i)
> cnt++;
> return cnt;
> }
>
> The number of iterations should be about UINT_MAX - start.
For
unsigned foo(unsigned val,
On 2021-07-01 15:22, Bin.Cheng wrote:
On Thu, Jul 1, 2021 at 10:06 AM Jiufu Guo via Gcc-patches
wrote:
For code like:
unsigned foo(unsigned val, unsigned start)
{
unsigned cnt = 0;
for (unsigned i = start; i > val; ++i)
cnt++;
return cnt;
}
The number of iterations should be about
On Thu, Jul 1, 2021 at 10:06 AM Jiufu Guo via Gcc-patches
wrote:
>
> For code like:
> unsigned foo(unsigned val, unsigned start)
> {
> unsigned cnt = 0;
> for (unsigned i = start; i > val; ++i)
> cnt++;
> return cnt;
> }
>
> The number of iterations should be about UINT_MAX - start.
>
>
For code like:
unsigned foo(unsigned val, unsigned start)
{
unsigned cnt = 0;
for (unsigned i = start; i > val; ++i)
cnt++;
return cnt;
}
The number of iterations should be about UINT_MAX - start.
There is function adjust_cond_for_loop_until_wrap which
handles similar work for const
