On Wed, Apr 4, 2012 at 1:27 AM, Jiangning Liu wrote:
>
>> So I suppose for this specific case a pass that performs type
>> promotion/demotion
>> (as was discussed repeatedly) would be a better thing, and an enablement
>> of trivial redundancy removal.
>>
> This case is from a real benchmark and t
2012/4/3 Jiangning Liu :
>
> 在 2012-4-2 下午4:37，"Richard Guenther" 写道：
>
>
>>
>> On Sat, Mar 31, 2012 at 6:23 AM, Jiangning Liu
>> wrote:
>> > Hi,
>> >
>> > For this small case,
>> >
>> > char garr[100];
>> > void f(void)
>> > {
>> >unsigned short h, s;
>> >
>> >s = 20;
>> >
>> >
On Sat, Mar 31, 2012 at 6:23 AM, Jiangning Liu wrote:
> Hi,
>
> For this small case,
>
> char garr[100];
> void f(void)
> {
> unsigned short h, s;
>
> s = 20;
>
> for (h = 1; h < (s-1); h++)
> {
> garr[h] = 0;
> }
> }
>
> After copyrename3, we have
Hi,
For this small case,
char garr[100];
void f(void)
{
unsigned short h, s;
s = 20;
for (h = 1; h < (s-1); h++)
{
garr[h] = 0;
}
}
After copyrename3, we have the following dump,
f ()
{
short unsigned int h;
int D.4066;
:
D.4066_
