Florian Weimer wrote:
* Enrico Migliore:
the code is a simple function that gets called 300000000 times.
There's an explicit check in GCC that prevents the removal of empty
loops (because they are sometimes used for their timing effect on
embedded targets, IIRC). Therefore, your test is bogus.
Hi Florian,
to make an exhaustive comparison of the various tool chains I'd need a
test suite.
and yet, I never pretended that the test proposed was the one to use to
select
a compiler rather than another.
I just wanted to see how the tested compilers build up the stack frame
of function calls,
with and without optimization and the impact on the execution speed.
Enrico
