[Bug tree-optimization/38261] New: [4.4 regression] gcc.dg/torture/ipa-pta-1.c & gcc.dg/tree-ssa/alias-2.c fail with -fpic/-fPIC

[ghazi at gcc dot gnu dot org]

The testcases gcc.dg/torture/ipa-pta-1.c and gcc.dg/tree-ssa/alias-2.c used to
work with -fpic/-fPIC on the trunk, but now fail.  The alias-2.c testcase
worked in 4.2, 4.3 with -fpic/-fPIC also, and the testcase doesn't appear to
have changed.  I think ipa-pta-1.c was added only on the trunk a few months ago
so there's no comparison with previous releases, however it did work on the
trunk up until very recently.

They both passed here:
http://gcc.gnu.org/ml/gcc-testresults/2008-11/msg01383.html

And they both started failing here:
http://gcc.gnu.org/ml/gcc-testresults/2008-11/msg01516.html

Based on the timing, I suspect that the cause is related.


-- 
           Summary: [4.4 regression] gcc.dg/torture/ipa-pta-1.c &
                    gcc.dg/tree-ssa/alias-2.c fail with -fpic/-fPIC
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ghazi at gcc dot gnu dot org
GCC target triplet: x86_64-*-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38261