[Bug middle-end/38574] New: -fvisibility=hidden not affecting thread variables while attribute hidden does.

[hp at gcc dot gnu dot org]

Compile the following, with "-O2 -fvisibility=hidden -S" without/with -DH. 
Compare assembly code. For this target, you'll see the following diff, but the
difference was noticed on the CRIS TLS w.i.p. using [gcc-4_3-branch revision
135713]:

--- hh.s        2008-12-18 23:14:54.000000000 +0100
+++ h.s 2008-12-18 23:15:05.000000000 +0100
@@ -13,5 +13,6 @@ foo:
        popl    %ebp
        ret
        .size   foo, .-foo
+       .hidden xyzzy
        .ident  "GCC: (GNU) 4.3.0 20080428 (Red Hat 4.3.0-8)"
        .section        .note.GNU-stack,"",@progbits


-- 
           Summary: -fvisibility=hidden not affecting thread variables while
                    attribute hidden does.
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38574