gcc SSA output support on Mac OS X

[Andrew Haley]

Rob Quigley wrote:
> Hey everyone,
> 
> I'm trying to compile a C++ file to SSA (single static assignment) and
> this should be possible with g++ as gcc from 4 onwards includes this
> facility
> (developer.apple.com/documentation/Darwin/Reference/ManPages/man1/i686-apple-darwin9-g++-4.0.1.1.html)
> but i have not been able to do it with gcc 4.0.1 or 4.2.1.
> 
> 
> Is this a mac issue or a me issue?
> 
> i'm compiling with the -fdump-tree-ssa switch.
> 
> If i compile with -fdump-tree-all the folowing files appear but no .ssa
> file :-(
> 
> helloc.c.003t.original\
> helloc.c.004t.gimple\
> helloc.c.007t.vcg\
> helloc.c.017t.useless\
> helloc.c.020t.lower\
> helloc.c.021t.eh\
> helloc.c.022t.cfg\
> helloc.c.023t.cplxlower0\
> helloc.c.024t.veclower\
> helloc.c.026t.fixupcfg\
> 
> Any ideas would be great.

Turn on the optimizer with -O.

Andrew.