target/6191: [HP-PA] ICE doing pointer math with -fPIC

[Dara Hazeghi]

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit- 
trail&database=gcc&pr=6191

Hi all,

the testcase in this PR is confirmed to still fail as reported on both  
3.3 branch and mainline (20030506 using powerpc-apple-darwin6.5 x  
hppa-linux cross compiler). It appears to be a generic PA bug as it  
also fails on hppa1.1-hp-hpux10.20 and hppa-2.0w-hp-hpux11.00 triplets  
while compiling successfully on c4x and powerpc-apple-darwin6.5.

Dara