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From: "olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/58122] loops are not evaluated at compile time if loop count > 17
Date: Thu, 31 Jul 2014 18:09:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58122

--- Comment #4 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #0)
> 
> I've also briefly checked with trunk rev 201282 and the problem seems to be
> still there.  Here is a reduced test case:
> 
> int test (void)
> {
>   int sum = 0;
>   for (int x = 0; x < 100; x++)
>     sum += x;
> 
>   return sum;
> }
> 

As of r213381 the reduced test case seems to work OK with at least loop counts
up to 40000.