[Bug middle-end/21180] [4.1 Regression] checking on fold no longer happens in some cases

["belyshev at depni dot sinp dot msu dot ru" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From belyshev at depni dot sinp dot msu dot ru  2005-07-13 10:31 -------
This patch does'n work now, it fails on any input:

<built-in>:0: internal compiler error: tree check: expected function_decl, have
type_decl in fold_checksum_tree, at fold-const.c:10288

#0  internal_error (gmsgid=0xc377c8 "tree check: %s, have %s in %s, at %s:%d")
    at ../../gcc41/gcc/diagnostic.c:534
#1  0x000000000098ba01 in tree_check_failed (node=0x2aaaaaf9e340, 
    file=0xba6438 "../../gcc41/gcc/fold-const.c", line=10288, 
    function=0xdf5d90 "fold_checksum_tree") at ../../gcc41/gcc/tree.c:5778
#2  0x0000000000731e54 in fold_checksum_tree (expr=0x2aaaaaf9e340, 
    ctx=0x7fffffa5c0f0, ht=0xec7730) at ../../gcc41/gcc/fold-const.c:10288
#3  0x00000000007322a1 in fold_checksum_tree (expr=0x7fffffa5bb70, 
    ctx=0x7fffffa5c0f0, ht=0xec7730) at ../../gcc41/gcc/fold-const.c:10302
#4  0x000000000073160f in fold_checksum_tree (expr=0x2aaaaaf835d0, 
    ctx=0x7fffffa5c0f0, ht=0xec7730) at ../../gcc41/gcc/fold-const.c:10231
#5  0x0000000000732781 in fold_build2 (code=MINUS_EXPR, type=0x2aaaaaf91000, 
    op0=0x2aaaaaf835d0, op1=0x2aaaaaf835d0)
    at ../../gcc41/gcc/fold-const.c:10379
#6  0x0000000000959db6 in layout_type (type=0x2aaaaafa1c60)
    at ../../gcc41/gcc/stor-layout.c:1715
#7  0x000000000097f3b8 in type_hash_lookup (hashcode=196468616, 
    type=0x2aaaaafa1c60) at ../../gcc41/gcc/tree.c:3922
#8  0x000000000097f4f1 in type_hash_canon (hashcode=196468616, 
    type=0x2aaaaafa1c60) at ../../gcc41/gcc/tree.c:3972
#9  0x0000000000986088 in build_array_type (elt_type=0x2aaaaafa1b00, 
    index_type=0x2aaaaafa1bb0) at ../../gcc41/gcc/tree.c:4846
#10 0x00000000009f6c4e in ix86_build_builtin_va_list ()
    at ../../gcc41/gcc/config/i386/i386.c:3402
#11 0x000000000098d191 in build_common_tree_nodes_2 (short_double=0)
    at ../../gcc41/gcc/tree.c:6097
#12 0x0000000000464b00 in c_common_nodes_and_builtins ()


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2005-06-30 13:11:22         |2005-07-13 10:31:11
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21180