[cfe-dev] No loop optimisation?

[mats petersson via cfe-dev]

Just to be clear: I was using -O2, and the "first loop" which has strlen in
it was optimised to a constant value and no loop, the second loop, with
sizeof, was not "removed".

--
Mats

On 6 November 2015 at 14:30, Renato Golin via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> On 6 November 2015 at 14:25, Joerg Sonnenberger via cfe-dev
> <cfe-dev at lists.llvm.org> wrote:
> > Also, if you look at IR make sure to run the appropiate passes first.
> > Clang output by default has very few optimisations in the -emit-llvm
> > output.
>
> That's intentional. Try -O2 and your IR will look much nicer. :)
>
> --renato
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