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* [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null
@ 2013-12-09 18:09 burnus at gcc dot gnu.org
2013-12-09 18:13 ` [Bug sanitizer/59437] " mpolacek at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: burnus at gcc dot gnu.org @ 2013-12-09 18:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
Bug ID: 59437
Summary: ICE in for g++ -S -fvtable-verify=std -fsanitize=null
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org,
mpolacek at gcc dot gnu.org
Created attachment 31404
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31404&action=edit
C++ test case "test48.ii", run with g++ -fvtable-verify=std -fsanitize=null
Follow up to PR59415; the fix is probably similar to that PR, cf.
gcc.gnu.org/ml/gcc-patches/2013-12/msg00839.html
The attached test case fails with "g++ -S -fvtable-verify=std -fsanitize=null"
as follows:
test48.ii: In function 'basic_ostream<_CharT, _Traits>&
endl(basic_ostream<_CharT, _Traits>&) [with _CharT = char; _Traits =
char_traits<char>]':
test48.ii:21:3: internal compiler error: Segmentation fault
endl(basic_ostream<_CharT, _Traits>& __os) {
^
0xbafb0f crash_signal
../../gcc/toplev.c:336
0xe188a7 var_is_used_for_virtual_call_p
../../gcc/vtable-verify.c:519
0xe187e0 var_is_used_for_virtual_call_p
../../gcc/vtable-verify.c:550
0xe199c0 verify_bb_vtables
../../gcc/vtable-verify.c:609
0xe199c0 vtable_verify_main()
../../gcc/vtable-verify.c:739
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug sanitizer/59437] ICE in for g++ -S -fvtable-verify=std -fsanitize=null
2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
@ 2013-12-09 18:13 ` mpolacek at gcc dot gnu.org
2013-12-09 18:14 ` mpolacek at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-09 18:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-12-09
Assignee|unassigned at gcc dot gnu.org |mpolacek at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I have a fix.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug sanitizer/59437] ICE in for g++ -S -fvtable-verify=std -fsanitize=null
2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
2013-12-09 18:13 ` [Bug sanitizer/59437] " mpolacek at gcc dot gnu.org
@ 2013-12-09 18:14 ` mpolacek at gcc dot gnu.org
2013-12-09 22:42 ` mpolacek at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-09 18:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.0
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug sanitizer/59437] ICE in for g++ -S -fvtable-verify=std -fsanitize=null
2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
2013-12-09 18:13 ` [Bug sanitizer/59437] " mpolacek at gcc dot gnu.org
2013-12-09 18:14 ` mpolacek at gcc dot gnu.org
@ 2013-12-09 22:42 ` mpolacek at gcc dot gnu.org
2013-12-10 10:49 ` mpolacek at gcc dot gnu.org
2013-12-10 10:50 ` mpolacek at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-09 22:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Slightly reduced:
template < typename T > struct A
{
T foo ();
};
template < typename T > struct C: virtual public A < T >
{
C & operator<< (C & (C &));
};
template < typename T >
C < T > &endl (C < int > &c)
{
c.foo ();
return c;
}
C < int > cout;
void
fn ()
{
cout << endl;
}
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug sanitizer/59437] ICE in for g++ -S -fvtable-verify=std -fsanitize=null
2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
` (2 preceding siblings ...)
2013-12-09 22:42 ` mpolacek at gcc dot gnu.org
@ 2013-12-10 10:49 ` mpolacek at gcc dot gnu.org
2013-12-10 10:50 ` mpolacek at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-10 10:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Tue Dec 10 10:49:39 2013
New Revision: 205854
URL: http://gcc.gnu.org/viewcvs?rev=205854&root=gcc&view=rev
Log:
PR sanitizer/59437
* vtable-verify.c (var_is_used_for_virtual_call_p): Check the
return value of gimple_call_fn. Use is_gimple_call/is_gimple_assign
instead of gimple_code.
testsuite/
* g++.dg/ubsan/pr59437.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/ubsan/pr59437.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/vtable-verify.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug sanitizer/59437] ICE in for g++ -S -fvtable-verify=std -fsanitize=null
2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
` (3 preceding siblings ...)
2013-12-10 10:49 ` mpolacek at gcc dot gnu.org
@ 2013-12-10 10:50 ` mpolacek at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-10 10:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59437
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread
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2013-12-09 18:09 [Bug sanitizer/59437] New: ICE in for g++ -S -fvtable-verify=std -fsanitize=null burnus at gcc dot gnu.org
2013-12-09 18:13 ` [Bug sanitizer/59437] " mpolacek at gcc dot gnu.org
2013-12-09 18:14 ` mpolacek at gcc dot gnu.org
2013-12-09 22:42 ` mpolacek at gcc dot gnu.org
2013-12-10 10:49 ` mpolacek at gcc dot gnu.org
2013-12-10 10:50 ` mpolacek at gcc dot gnu.org
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