Hi Alexsey,
The 'expected to run benchmarks' might the operative comment in the code.
'Common' knowledge sometimes isn't so common.
Roger
On 12/17/2015 2:54 AM, Aleksey Shipilev wrote:
On 12/17/2015 02:34 AM, Ulf wrote:
I'm wondering why moving the increment operation to an extra line wound
enhance performance.
Because C1 is very straightforward, and code movement like that is a
poor man's instruction scheduling, that pads out the data dependency
between index update and indexed access. I don't think it deserves a
comment -- it is expected one will run the benchmarks when changing that
code.
Thanks,
-Aleksey
