GCC 5.2 Pass does not get called

Cristina Georgiana Opriceana cristina.opriceana@gmail.com
Tue Jan 12 09:25:00 GMT 2016


On Tue, Jan 5, 2016 at 1:28 PM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> On 5 January 2016 at 11:24, Cristina Georgiana Opriceana wrote:
>> Hello,
>>
>> I am trying to add a new gimple_opt pass to gcc 5.2. I wrote a simple
>> test code to register a new pass that also has a flag.
>>
>> I added the pass in passes.def and also declared it in tree-pass.h. I
>> recompiled gcc and it seems that my pass gets called (I printed some
>> output in the execute() function) when compiling gcc itself, but not
>> if I use gcc on an external file, for e.g:
>>
>> I expect that whenever I call:
>>
>> gcc -fsafestack file.c
>>
>> the pass would also be run on the code, but instead nothing happens.
>
> If this is an optimization pass then you need to enable optimization,
> using the -f option isn't sufficient. See
> https://gcc.gnu.org/wiki/FAQ#optimization-options

Indeed, that was the problem! Thanks a lot!

Cristina



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