------- Comment #3 from rguenth at gcc dot gnu dot org 2008-04-06 16:06 -------
-fno-tree-ch probably just hides the bug. -linux targets work for me.
(gdb) call debug_generic_expr (tmp)
&SSL_ImplementedCiphers
(gdb) call is_gimple_min_invariant (tmp)
$1 = 0 '\0'
which is the problem.
static bool
fixed_address_object_p (tree obj)
{
return (TREE_CODE (obj) == VAR_DECL
&& (TREE_STATIC (obj)
|| DECL_EXTERNAL (obj)));
}
doesn't match what is_gimple_invariant_address checks for, in this
case probably the DECL_DLLIMPORT_P part of
case VAR_DECL:
if (((TREE_STATIC (op) || DECL_EXTERNAL (op))
&& ! DECL_DLLIMPORT_P (op))
|| DECL_THREAD_LOCAL_P (op)
|| DECL_CONTEXT (op) == current_function_decl
|| decl_function_context (op) == current_function_decl)
return true;
is at fault. Fixing that mismatch with the obvious
Index: tree-ssa-address.c
===================================================================
--- tree-ssa-address.c (revision 133961)
+++ tree-ssa-address.c (working copy)
@@ -345,7 +345,8 @@ fixed_address_object_p (tree obj)
{
return (TREE_CODE (obj) == VAR_DECL
&& (TREE_STATIC (obj)
- || DECL_EXTERNAL (obj)));
+ || DECL_EXTERNAL (obj))
+ && ! DECL_DLLIMPORT_P (obj));
}
/* If ADDR contains an address of object that is a link time constant,
leaves us with
./cc1plus -quiet t.ii -O
/mnt/dump/src/mozilla/mozilla/security/manager/ssl/src/nsCipherInfo.cpp: In
constructor nsCipherInfo::nsCipherInfo(PRUint16):
/mnt/dump/src/mozilla/mozilla/security/manager/ssl/src/nsCipherInfo.cpp:73:
internal compiler error: in legitimize_pic_address, at config/i386/i386.c:7666
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
/* Given that we've already handled dllimport variables separately
in legitimize_address, and all other variables should satisfy
legitimate_pic_address_disp_p, we should never arrive here. */
gcc_assert (!TARGET_64BIT_MS_ABI);
Can you bootstrap & test the tree-ssa-address.c change? It is correct
nevetheless.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35842
