Hi Segher,
Segher Boessenkool writes:
> On Fri, Nov 11, 2016 at 02:16:18AM +0100, Nicolai Stange wrote:
>> >> >From the discussion on gcc-patches [1] of what is now the aforementioned
>> >> r228318 ("bb-reorder: Add -freorder-blocks-algorithm= and wire i
Hi Segher,
thanks for your prompt reply!
Segher Boessenkool writes:
> On Fri, Nov 11, 2016 at 12:03:44AM +0100, Nicolai Stange wrote:
>> in the course of doing some benchmarks on arm with -Os, I noticed that
>> some list traversion code became significantly slower sin
Hi all,
in the course of doing some benchmarks on arm with -Os, I noticed that
some list traversion code became significantly slower since gcc 5.3 when
instruction caches are cold.
Reproducer with relevant defines copied from the Linux kernel:
struct list_head {
struct list_head *next,
