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* [Bug c/61136] New: ice in tree_nop_conversion
@ 2014-05-10  6:50 dcb314 at hotmail dot com
  2014-05-10  7:55 ` [Bug c/61136] [4.10 Regression] " jakub at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: dcb314 at hotmail dot com @ 2014-05-10  6:50 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61136

            Bug ID: 61136
           Summary: ice in tree_nop_conversion
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com

Created attachment 32773
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32773&action=edit
gzipped C source code

I just tried to compile the attached code, derived from the Linux kernel,
with flag -O2 on trunk dated 20140509 and it said

mm/slub.c: In function ‘slab_order’:
mm/slub.c:2774:3: internal compiler error: Segmentation fault
   return get_order(size * MAX_OBJS_PER_PAGE) - 1;
   ^
0x98391f crash_signal
    ../../src/trunk/gcc/toplev.c:337
0xb68634 tree_nop_conversion
    ../../src/trunk/gcc/tree.c:11483
0xb68634 tree_strip_nop_conversions
    ../../src/trunk/gcc/tree.c:11534

valgrind says

==21347== Invalid read of size 2
==21347==    at 0xB68634: integer_zerop(tree_node const*) (tree.c:11483)
==21347==    by 0x74C413: multiple_of_p(tree_node*, tree_node const*, tree_node
const*) (fold-const.c:15308)
==21347==    by 0x74C3F8: multiple_of_p(tree_node*, tree_node const*, tree_node
const*) (fold-const.c:15273)
==21347==    by 0x741D02: fold_binary_loc(unsigned int, tree_code, tree_node*,
tree_node*, tree_node*) (fold-const.c:11749)
==21347==    by 0x7434EA: fold_build2_stat_loc(unsigned int, tree_code,
tree_node*, tree_node*, tree_node*) (fold-const.c:14995)
==21347==    by 0x5A69DD: c_fully_fold_internal(tree_node*, bool, bool*, bool*)
(c-common.c:1303)
==21347==    by 0x5A7062: c_fully_fold(tree_node*, bool, bool*)
(c-common.c:1097)
==21347==    by 0x546D04: build_binary_op(unsigned int, tree_code, tree_node*,
tree_node*, int) (c-typeck.c:10953)
==21347==    by 0x54357A: c_objc_common_truthvalue_conversion(unsigned int,
tree_node*) (c-typeck.c:11116)
==21347==    by 0x562671: c_parser_conditional_expression(c_parser*, c_expr*,
tree_node*) (c-parser.c:5962)
==21347==    by 0x5627BB: c_parser_conditional_expression(c_parser*, c_expr*,
tree_node*) (c-parser.c:5982)
==21347==    by 0x562BB0: c_parser_expr_no_commas(c_parser*, c_expr*,
tree_node*) [clone .constprop.45] (c-parser.c:5848)
==21347==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==21347==
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From: "schwab@linux-m68k.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/50459] alignof doesn't work on plain old constant, works with expressions containing it
Date: Sat, 10 May 2014 07:27:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idP459

--- Comment #8 from Andreas Schwab <schwab@linux-m68k.org> ---
FAIL: gcc.target/ia64/small-addr-1.c (test for excess errors)


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-05-11 21:57 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-05-10  6:50 [Bug c/61136] New: ice in tree_nop_conversion dcb314 at hotmail dot com
2014-05-10  7:55 ` [Bug c/61136] [4.10 Regression] " jakub at gcc dot gnu.org
2014-05-10  8:20 ` jakub at gcc dot gnu.org
2014-05-10  8:31 ` rsandifo at gcc dot gnu.org
2014-05-11 20:22 ` rsandifo at gcc dot gnu.org
2014-05-11 21:57 ` rsandifo at gcc dot gnu.org

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