How can I get the dump file which is in SSA form ?

[Brian Dessent]

Qiang Huang wrote:

>    I used the command bellow:
> 
>         gcc -fdump-tree-ssa hello.c
> 
>    to dump the file in SSA form. However, I can't find the file in the
> directory.It seems that the file wasn't dumped at all.

You haven't asked gcc to do any optimization, so the tree-ssa passes
never run and there's nothing to dump.  You need to specify an
optimization level higher than the default 0.

Brian