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* [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
@ 2021-10-27 12:47 pnarsing at mathworks dot com
2021-10-27 15:50 ` [Bug tree-optimization/102960] [10/11/12 Regression] " msebor at gcc dot gnu.org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: pnarsing at mathworks dot com @ 2021-10-27 12:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Bug ID: 102960
Summary: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
Product: gcc
Version: 10.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: pnarsing at mathworks dot com
Target Milestone: ---
Created attachment 51675
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51675&action=edit
preprocessed output of cpp file causing ice
On compiling cpp file with -Og flag I'm getting ICE coming from wide-int.h
Attaching preprocessed file with this bug report .
To reproduce the issue
g++ -c RangeDisplay.cpp -Og
Stack for ICE :
internal compiler error: in sign_mask, at wide-int.h:855
89 | char const* RangeDisplay::toString(StringBuffer& aStringBuffer) const {
| ^~~~~~~~~~~~
0x5ea99c generic_wide_int<wide_int_ref_storage<true, false> >::sign_mask()
const
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/wide-int.h:855
0x6488cd generic_wide_int<wide_int_ref_storage<true, false> >::sign_mask()
const
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/wide-int.h:1898
0x6488cd bool wi::neg_p<generic_wide_int<wide_int_ref_storage<true, false> >
>(generic_wide_int<wide_int_ref_storage<true, false> > const&, signop)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/wide-int.h:1836
0x6488cd bool wi::lts_p<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >
>(generic_wide_int<wi::extended_tree<192> > const&,
generic_wide_int<wi::extended_tree<192> > const&)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/wide-int.h:1914
0xdda1ad wi::binary_traits<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >,
wi::int_traits<generic_wide_int<wi::extended_tree<192> > >::precision_type,
wi::int_traits<generic_wide_int<wi::extended_tree<192> >
>::precision_type>::signed_predicate_result operator<
<generic_wide_int<wi::extended_tree<192> >,
generic_wide_int<wi::extended_tree<192> >
>(generic_wide_int<wi::extended_tree<192> > const&,
generic_wide_int<wi::extended_tree<192> > const&)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/wide-int.h:3248
0xdda1ad tree_int_cst_lt(tree_node const*, tree_node const*)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree.h:6105
0xdda1ad get_range_strlen_dynamic
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:1067
0xdda591 get_range_strlen_dynamic(tree_node*, c_strlen_data*, vr_values const*)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:1211
0x1447d13 get_string_length
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/gimple-ssa-sprintf.c:2029
0x1447d13 format_string
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/gimple-ssa-sprintf.c:2466
0x1449a98 format_directive
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/gimple-ssa-sprintf.c:3059
0x1449a98 compute_format_length
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/gimple-ssa-sprintf.c:4002
0x1449a98 handle_printf_call(gimple_stmt_iterator*, vr_values const*)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/gimple-ssa-sprintf.c:4683
0xde0fab strlen_check_and_optimize_call
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:5463
0xde0fab check_and_optimize_stmt
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:5631
0xde0fab strlen_dom_walker::before_dom_children(basic_block_def*)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:5864
0x140c237 dom_walker::walk(basic_block_def*)
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/domwalk.c:309
0xdd7e2e printf_strlen_execute
/mathworks/devel/sandbox/pnarsing/3p-internal-AH3/3p/sources/gcc-10.3/gcc/tree-ssa-strlen.c:5930
Please submit a full bug report,
with preprocessed source if appropriate.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
@ 2021-10-27 15:50 ` msebor at gcc dot gnu.org
2021-10-27 21:21 ` pinskia at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-10-27 15:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Known to fail| |10.3.0, 11.2.0, 12.0
Summary|ICE: in sign_mask, at |[10/11/12 Regression] ICE:
|wide-int.h:855 in GCC |in sign_mask, at
|10.3.0 |wide-int.h:855 in GCC
| |10.3.0
Last reconfirmed| |2021-10-27
Status|UNCONFIRMED |NEW
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with 10 and above. The code below expects minlen to be constant but
it's actually a COND_EXPR.
/* Adjust the minimum and maximum length determined
so far and the upper bound on the array size. */
if (!pdata->minlen
|| tree_int_cst_lt (argdata.minlen, pdata->minlen))
pdata->minlen = argdata.minlen;
The length is computed from the variable below:
<ssa_name 0x7fffea150f30
type <pointer_type 0x7fffea8215e8
type <integer_type 0x7fffea821540 char readonly public type_6 QI
size <integer_cst 0x7fffea817048 constant 8>
unit-size <integer_cst 0x7fffea817060 constant 1>
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffea821540 precision:8 min <integer_cst 0x7fffea817090 -128> max
<integer_cst 0x7fffea8170c0 127>
pointer_to_this <pointer_type 0x7fffea8215e8> reference_to_this
<reference_type 0x7fffe9d8b1f8>>
sizes-gimplified public unsigned type_6 DI
size <integer_cst 0x7fffea7f5f48 constant 64>
unit-size <integer_cst 0x7fffea7f5f60 constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set 3 canonical-type
0x7fffea8215e8
pointer_to_this <pointer_type 0x7fffea9d5540>>
visited var <var_decl 0x7fffe912f900 sNaN>
def_stmt sNaN_8 = &", NaN"[commaAdjust_2];
version:8>
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
2021-10-27 15:50 ` [Bug tree-optimization/102960] [10/11/12 Regression] " msebor at gcc dot gnu.org
@ 2021-10-27 21:21 ` pinskia at gcc dot gnu.org
2021-10-28 10:08 ` acoplan at gcc dot gnu.org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-10-27 21:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Target Milestone|--- |10.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
2021-10-27 15:50 ` [Bug tree-optimization/102960] [10/11/12 Regression] " msebor at gcc dot gnu.org
2021-10-27 21:21 ` pinskia at gcc dot gnu.org
@ 2021-10-28 10:08 ` acoplan at gcc dot gnu.org
2021-10-28 11:39 ` acoplan at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: acoplan at gcc dot gnu.org @ 2021-10-28 10:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Alex Coplan <acoplan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |acoplan at gcc dot gnu.org
Keywords|needs-reduction |
--- Comment #2 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Reduced testcase:
long l;
int f();
void g(void) {
const char *s;
if (f())
s = &", NaN"[l];
__builtin_printf("%s", s);
}
also confirmed on aarch64-linux-gnu.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (2 preceding siblings ...)
2021-10-28 10:08 ` acoplan at gcc dot gnu.org
@ 2021-10-28 11:39 ` acoplan at gcc dot gnu.org
2021-10-28 15:37 ` msebor at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: acoplan at gcc dot gnu.org @ 2021-10-28 11:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Alex Coplan <acoplan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-bisection |
--- Comment #3 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Looks like it started with r10-2814-g22fca489eaf98f2691772b51773a1e4eb7bb4ef2
FWIW:
commit 22fca489eaf98f2691772b51773a1e4eb7bb4ef2
Author: Martin Sebor <msebor@redhat.com>
Date: Mon Aug 26 19:29:45 2019
PR tree-optimization/83431 - -Wformat-truncation may incorrectly report
truncation
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (3 preceding siblings ...)
2021-10-28 11:39 ` acoplan at gcc dot gnu.org
@ 2021-10-28 15:37 ` msebor at gcc dot gnu.org
2021-11-05 13:43 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-10-28 15:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (4 preceding siblings ...)
2021-10-28 15:37 ` msebor at gcc dot gnu.org
@ 2021-11-05 13:43 ` rguenth at gcc dot gnu.org
2021-11-16 16:23 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-05 13:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11/12 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (5 preceding siblings ...)
2021-11-05 13:43 ` rguenth at gcc dot gnu.org
@ 2021-11-16 16:23 ` cvs-commit at gcc dot gnu.org
2021-11-16 16:24 ` [Bug tree-optimization/102960] [10/11 " msebor at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-16 16:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:
https://gcc.gnu.org/g:ba6e17e78db543b336c196b55fa6430e513f1941
commit r12-5310-gba6e17e78db543b336c196b55fa6430e513f1941
Author: Martin Sebor <msebor@redhat.com>
Date: Tue Nov 16 09:18:25 2021 -0700
Avoid assuming maximum string length is constant [PR102960].
Resolves:
PR tree-optimization/102960 - ICE: in sign_mask, at wide-int.h:855 in GCC
10.3.0
gcc/ChangeLog:
PR tree-optimization/102960
* gimple-fold.c (get_range_strlen): Take bitmap as an argument
rather
than a pointer to it.
(get_range_strlen_tree): Same. Remove bitmap allocation. Use
an auto_bitmap.
(get_maxval_strlen): Use an auto_bitmap.
* tree-ssa-strlen.c (get_range_strlen_dynamic): Factor out PHI
handling...
(get_range_strlen_phi): ...into this function.
Avoid assuming maximum string length is constant
(printf_strlen_execute): Dump pointer query cache contents when
details are requisted.
gcc/testsuite/ChangeLog:
PR tree-optimization/102960
* gcc.dg/Wstringop-overflow-84.c: New test.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (6 preceding siblings ...)
2021-11-16 16:23 ` cvs-commit at gcc dot gnu.org
@ 2021-11-16 16:24 ` msebor at gcc dot gnu.org
2022-06-28 10:46 ` jakub at gcc dot gnu.org
2023-07-07 10:41 ` [Bug tree-optimization/102960] [11 " rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-11-16 16:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail|12.0 |
Known to work| |12.0
Summary|[10/11/12 Regression] ICE: |[10/11 Regression] ICE: in
|in sign_mask, at |sign_mask, at
|wide-int.h:855 in GCC |wide-int.h:855 in GCC
|10.3.0 |10.3.0
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed in GCC 12.0. Will backport.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [10/11 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (7 preceding siblings ...)
2021-11-16 16:24 ` [Bug tree-optimization/102960] [10/11 " msebor at gcc dot gnu.org
@ 2022-06-28 10:46 ` jakub at gcc dot gnu.org
2023-07-07 10:41 ` [Bug tree-optimization/102960] [11 " rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-06-28 10:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|10.4 |10.5
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/102960] [11 Regression] ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0
2021-10-27 12:47 [Bug c++/102960] New: ICE: in sign_mask, at wide-int.h:855 in GCC 10.3.0 pnarsing at mathworks dot com
` (8 preceding siblings ...)
2022-06-28 10:46 ` jakub at gcc dot gnu.org
@ 2023-07-07 10:41 ` rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-07-07 10:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102960
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|10.5 |11.5
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 10 branch is being closed.
^ permalink raw reply [flat|nested] 11+ messages in thread
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