A visualization of GCC's passes, as a subway map

[Paolo Bonzini]

On 07/12/2011 10:43 AM, Paulo J. Matos wrote:
>>
>>> Hope this is fun/helpful (and that I'm correctly interpreting the data!)
>>
>> You are, and it shows some bugs even. gimple_lcx is obviously destroyed
>> by expand, and I find it unlikely that no pass ever introduces a
>> critical edge...
>>
>
> But the diagram shows gimple_lcx stopping at expand but continuing its
> lifetime through RTL passes (so gimple_lcx according to the diagram is
> _not_ destroyed by expand). So, I am left wondering if the bug is in the
> diagram or GCC.

It shows bugs in GCC's pass description, to be clear.

Paolo