-O2 flag

[Friedrich Locke]

i switched to clan40, same error, i.e., it still persist.

The problem is that open OpenBSD/amd64 6.1, "gcc -O2" works 100 %.

What could it be the problem ?

Em 10/06/2017 17:37, Eduardo Morras via freebsd-questions escreveu:
> On Sat, 10 Jun 2017 16:20:25 -0300
> Friedrich Locke <friedrich.locke at gmail.com> wrote:
>
>> Hi folks,
>>
>> i am trying compile a program with cc on freebsd 11.
>> When i use -O2 compilation flag, the compiled code is giving error on
>> execution, but with i omit -O2 everything works ok.
>>
>> Have anybody already faced such problem ?
>
> No, which compiler are you using? Which version? Are you using the last
> version? It looks like a bug in the compiler, perhaps modifying your
> code you can bypass it.
>
> In FreeBSD 11, the default cc is clang38, try with clang40. To install
> it, use port llvm40, it includes clang40 now:
>
> #pkg install llvm40
>
> and use clang40 instead cc.
>
>> Thanks in advance.
>
>   HTH
>
> ---   ---
> Eduardo Morras <emorrasg at yahoo.es>
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