Any way to output information on compiler-generated temporary variables in gcc?

[Jonathan Wakely]

On 20 January 2014 15:00, Michele Co <mc2zk@virginia.edu> wrote:
> Hello,
>
> I'd like to gather/output information (size, offset, type -- if possible) of
> compiler-generated temporaries generated by gcc during compilation.  I have
> looked through the compiler options related to generating debug information
> but am unsure whether there is an option available that will already give me
> this information in some form.
>
> Does anyone on this list know of a quick and relatively straightforward
> method for gathering and outputting this information if it hasn't already
> been done before?

One of the -fdump-tree-xxx options might provide the information you
want, e.g. -fdump-tree-original

I don't think debug info includes temporaries that aren't named in the
source, but I could be wrong.