st case.
* gcc.dg/pr101145-2.c: New test case.
Roger
--
> -Original Message-
> From: Richard Biener
> Sent: 30 November 2021 10:00
> To: Roger Sayle
> Cc: GCC Patches
> Subject: Re: [PATCH] Final value replacement improvements for until-wrap
> loops.
>
> O
On Mon, Nov 29, 2021 at 10:07 AM Roger Sayle wrote:
>
>
> This middle-end patch is inspired by Richard Biener's until-wrap
> loop example in PR tree-optimization/101145.
>
> unsigned foo(unsigned val, unsigned start)
> {
> unsigned cnt = 0;
> for (unsigned i = start; i > val; ++i)
> cnt++;
This middle-end patch is inspired by Richard Biener's until-wrap
loop example in PR tree-optimization/101145.
unsigned foo(unsigned val, unsigned start)
{
unsigned cnt = 0;
for (unsigned i = start; i > val; ++i)
cnt++;
return cnt;
}
For this loop, the tree optimizers currently generate
