[Bug middle-end/70773] Profiled sudoku solver slower due to lack of sdiv/udiv

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70773

wilco at gcc dot gnu.org changed:

           What    |Removed                     |Added
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             Status|NEW                         |WAITING
                 CC|                            |wilco at gcc dot gnu.org

--- Comment #10 from wilco at gcc dot gnu.org ---
I can't reproduce any of this. GCC6 and GCC7 always use smull for the divisions
on ARM, even with profile-use. I could only make GCC emit a library call by
using -Os on a CPU that doesn't have divide, but that is expected and correct.

On AArch64 I get > 20% speedup with -fprofile-use vs plain -O3, so it works as
expected. With -mcpu=cortex-a53 there are more uses of sdiv, but the profiled
version is still faster.

So without more details I don't see any issue here.