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* [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto
@ 2015-02-24 14:59 trippels at gcc dot gnu.org
2015-02-25 12:27 ` [Bug lto/65193] " rguenth at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: trippels at gcc dot gnu.org @ 2015-02-24 14:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
Bug ID: 65193
Summary: [4.9 Regression] ICE: Segmentation fault with -g -flto
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: trippels at gcc dot gnu.org
Boost doesn't build with gcc-4.9 and -flto -g:
markus@x4 testcase % cat nexttowardl.ii
void frexp (int, int *);
namespace std
{
int ldexp (int, int);
struct A
{
};
template <class T> T get_min_shift_value ();
template <class> struct min_shift_initializer
{
struct B
{
B () { get_min_shift_value<long double> (); }
} static const b;
static void
m_fn1 ()
{
b;
}
};
template <class T>
const typename min_shift_initializer<T>::B min_shift_initializer<T>::b;
template <class T>
inline T
get_min_shift_value ()
{
using std::ldexp;
static T c = ldexp (0, 0);
min_shift_initializer<T>::m_fn1;
}
template <class T, class Policy>
void
float_next_imp (T p1, Policy p2)
{
using std::ldexp;
int d;
float_next (0, p2);
frexp (p1, &d);
}
template <class T, class Policy>
int
float_next (const T &p1, Policy &p2)
{
float_next_imp (p1, p2);
}
template <class T, class Policy> void float_prior_imp (T, Policy)
{
get_min_shift_value<T> ();
}
template <class T, class Policy> int float_prior (T, Policy)
{
float_prior_imp (static_cast<T> (0), 0);
}
template <class T, class U, class Policy>
void
nextafter (T p1, U p2, Policy p3)
{
p2 ? float_next (0, p3) : float_prior (p1, 0);
}
long double e;
int f;
void
nextafter ()
{
nextafter (e, f, A ());
}
}
markus@x4 testcase % g++ -fPIC -flto -shared -O2 -g nexttowardl.ii
nexttowardl.ii: In function ‘float_next_imp’:
nexttowardl.ii:33:1: internal compiler error: Segmentation fault
float_next_imp (T p1, Policy p2)
^
0x814e6f crash_signal
../../gcc/gcc/toplev.c:337
0x91e78b mark_use_processed
../../gcc/gcc/tree-ssa-sccvn.c:2708
0x91e78b visit_use
../../gcc/gcc/tree-ssa-sccvn.c:3366
0x92164c process_scc
../../gcc/gcc/tree-ssa-sccvn.c:3718
0x92164c extract_and_process_scc_for_name
../../gcc/gcc/tree-ssa-sccvn.c:3802
0x92164c DFS
../../gcc/gcc/tree-ssa-sccvn.c:3854
0x92164c run_scc_vn(vn_lookup_kind)
../../gcc/gcc/tree-ssa-sccvn.c:4097
0x8fe71a execute_fre
../../gcc/gcc/tree-ssa-pre.c:4839
0x8fe71a execute
../../gcc/gcc/tree-ssa-pre.c:4890
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: /var/tmp/gcc_test_/usr/local/bin/g++ returned 1 exit status
/usr/bin/ld: fatal error: lto-wrapper failed
collect2: error: ld returned 1 exit status
>From gcc-bugs-return-478327-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Tue Feb 24 14:37:15 2015
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From: "trippels at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug lto/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
Date: Tue, 24 Feb 2015 15:00:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: lto
X-Bugzilla-Version: 4.9.2
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: trippels at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.9.3
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Message-ID: <bug-65193-4-MTDELi7iaR@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide193
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.8.4, 5.0
Target Milestone|--- |4.9.3
Known to fail| |4.9.2
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug lto/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
@ 2015-02-25 12:27 ` rguenth at gcc dot gnu.org
2015-02-26 15:18 ` [Bug tree-optimization/65193] " rguenth at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-25 12:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-02-25
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I will have a look (sounds like a know issue with a not backported patch).
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
2015-02-25 12:27 ` [Bug lto/65193] " rguenth at gcc dot gnu.org
@ 2015-02-26 15:18 ` rguenth at gcc dot gnu.org
2015-02-27 9:51 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-26 15:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I already get
> ./xg++ -B. -nostdlib -fPIC -flto -shared t.ii -O2 -g
t.ii: In function ‘float_next_imp’:
t.ii:33:7: error: address taken, but ADDRESSABLE bit not set
float_next_imp (T p1, Policy p2)
^
d
t.ii:38:4: note: in statement
frexp (p1, &d);
^
# .MEM_13 = VDEF <.MEM_11>
frexp (p1_5(D), &d);
t.ii:33:7: internal compiler error: verify_gimple failed
float_next_imp (T p1, Policy p2)
^
0xaf39de verify_gimple_in_cfg(function*)
Ok. It is the execute_update_addresses_taken () call in the TODO of the
IPA inline transform pass that re-sets TREE_ADDRESSABLE here. Somehow
we have merged 'd' from two different places it seems (the optimization
is in _GLOBAL__sub_I_t.ii).
The duplicate appears in _GLOBAL__sub_I_t.ii after inlining:
{ Scope block #21 t.ii:13 Originating from : static long doubleD.2801
get_min_shift_valueD.2829 (void);
{ Scope block #23 Originating from :#0
voidD.2802 <<< Unknown tree: imported_decl >>> = ldexpD.2839;
intD.2788 dD.2905; (nonlocalized)
...
_GLOBAL__sub_I_t.ii ()
{
...
}
...
float_next_imp (intD.2788 p1D.2902, struct AD.2830 p2D.2903)
{
struct AD.2830 D.2919;
intD.2788 D.2918;
const intD.2833 ISRA.9D.2915;
intD.2788 dD.2905;
const intD.2833 D.2904;
something is messed up. The decl is streamed via streaming struct function
local-decls from float_next_imp (as expected). No idea how it ends up in
the vars for _GLOBAL__sub_I_t.ii.
Ah. We inline
(gdb) p debug_gimple_stmt (stmt)
# .MEM = VDEF <.MEM>
get_min_shift_value ();
$91 = void
but somehow we end up with
(gdb) p debug_tree (old_var)
<var_decl 0x7ffff683c8e8 d
type <integer_type 0x7ffff66b2690 int asm_written public SI
size <integer_cst 0x7ffff66b53a0 constant 32>
unit size <integer_cst 0x7ffff66b53c0 constant 4>
align 32 symtab -159219552 alias set -1 canonical type 0x7ffff66b2690
precision 32 min <integer_cst 0x7ffff66b5340 -2147483648> max <integer_cst
0x7ffff66b5360 2147483647>
pointer_to_this <pointer_type 0x7ffff66bd738>>
addressable SI file t.ii line 36 col 8 size <integer_cst 0x7ffff66b53a0 32>
unit size <integer_cst 0x7ffff66b53c0 4>
align 32 context <function_decl 0x7ffff6821b00 float_next_imp>>
in its BLOCK tree. Which gets populated by
Old value = <tree 0x0>
New value = <block 0x7ffff6828fa0>
0x0000000000cd9194 in lto_input_ts_block_tree_pointers (ib=0x7fffffffd610,
data_in=0x1bee6a0, expr=<block 0x7ffff6828fa0>)
at /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-streamer-in.c:928
928 BLOCK_SUBBLOCKS (BLOCK_SUPERCONTEXT (expr)) = expr;
but finally the valid block tree
(gdb) p debug_tree (expr)
<block 0x7ffff6828fa0
vars <imported_decl 0x7ffff681e8a0 D.2856
type <void_type 0x7ffff66bd000 void asm_written VOID
align 8 symtab 0 alias set -1 canonical type 0x7ffff66bd000
pointer_to_this <pointer_type 0x7ffff66bd0a8>>
VOID file t.ii line 39 col 2
align 1 initial <function_decl 0x7ffff682a100 ldexp>
chain <var_decl 0x7ffff66abd10 c type <real_type 0x7ffff66bd498 long
double>
public static weak XF file t.ii line 28 col 13
size <integer_cst 0x7ffff66b50a0 constant 128>
unit size <integer_cst 0x7ffff66b50c0 constant 16>
align 128 context <function_decl 0x7ffff6821a00
get_min_shift_value>
gets invalid by
Hardware watchpoint 16: *$111
Old value = <var_decl 0x7ffff66abd10 c>
New value = <var_decl 0x7ffff683c8e8 d>
0x0000000000cd579b in streamer_read_chain (ib=0x7fffffffd990,
data_in=0x1bee740)
at /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-streamer-in.c:85
85 TREE_CHAIN (prev) = curr;
where 'prev' is that IMPORTED_DECL which is streamed globally it seems (ups).
And we miss r212992 on the branch.
>From gcc-bugs-return-478600-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Feb 26 14:39:20 2015
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From: "ktietz at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libgcc/65038] [regression 5] Unable to find ftw.h for libgcov-util.c
Date: Thu, 26 Feb 2015 15:32:00 -0000
X-Bugzilla-Reason: CC
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide038
Kai Tietz <ktietz at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-02-26
Target Milestone|--- |5.0
Ever confirmed|0 |1
--- Comment #1 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Confirmed. I have a patch for it
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
2015-02-25 12:27 ` [Bug lto/65193] " rguenth at gcc dot gnu.org
2015-02-26 15:18 ` [Bug tree-optimization/65193] " rguenth at gcc dot gnu.org
@ 2015-02-27 9:51 ` rguenth at gcc dot gnu.org
2015-02-27 9:57 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-27 9:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Known to work| |4.9.3
Resolution|--- |FIXED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
` (2 preceding siblings ...)
2015-02-27 9:51 ` rguenth at gcc dot gnu.org
@ 2015-02-27 9:57 ` rguenth at gcc dot gnu.org
2015-02-27 10:55 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-27 9:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 27 08:41:26 2015
New Revision: 221044
URL: https://gcc.gnu.org/viewcvs?rev=221044&root=gcc&view=rev
Log:
2015-02-27 Richard Biener <rguenther@suse.de>
PR lto/65193
Backport from mainline
2014-07-24 Jan Hubicka <hubicka@ucw.cz>
* lto-streamer-out.c (tree_is_indexable): Consider IMPORTED_DECL
as non-indexable.
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/lto-streamer-out.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
` (3 preceding siblings ...)
2015-02-27 9:57 ` rguenth at gcc dot gnu.org
@ 2015-02-27 10:55 ` rguenth at gcc dot gnu.org
2015-02-27 11:17 ` rguenth at gcc dot gnu.org
2015-02-27 12:25 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-27 10:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 27 10:20:50 2015
New Revision: 221050
URL: https://gcc.gnu.org/viewcvs?rev=221050&root=gcc&view=rev
Log:
2015-02-27 Richard Biener <rguenther@suse.de>
PR lto/65193
* g++.dg/lto/pr65193_0.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/lto/pr65193_0.C
Modified:
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
` (4 preceding siblings ...)
2015-02-27 10:55 ` rguenth at gcc dot gnu.org
@ 2015-02-27 11:17 ` rguenth at gcc dot gnu.org
2015-02-27 12:25 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-27 11:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 27 10:22:04 2015
New Revision: 221051
URL: https://gcc.gnu.org/viewcvs?rev=221051&root=gcc&view=rev
Log:
2015-02-27 Richard Biener <rguenther@suse.de>
PR lto/65193
* g++.dg/lto/pr65193_0.C: New testcase.
Added:
branches/gcc-4_9-branch/gcc/testsuite/g++.dg/lto/pr65193_0.C
Modified:
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/65193] [4.9 Regression] ICE: Segmentation fault with -g -flto
2015-02-24 14:59 [Bug lto/65193] New: [4.9 Regression] ICE: Segmentation fault with -g -flto trippels at gcc dot gnu.org
` (5 preceding siblings ...)
2015-02-27 11:17 ` rguenth at gcc dot gnu.org
@ 2015-02-27 12:25 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-27 12:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65193
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 27 11:34:14 2015
New Revision: 221054
URL: https://gcc.gnu.org/viewcvs?rev=221054&root=gcc&view=rev
Log:
2015-02-27 Richard Biener <rguenther@suse.de>
PR lto/65193
Backport from mainline
2014-07-24 Jan Hubicka <hubicka@ucw.cz>
* lto-streamer-out.c (tree_is_indexable): Consider IMPORTED_DECL
as non-indexable.
* g++.dg/lto/pr65193_0.C: New testcase.
Added:
branches/gcc-4_8-branch/gcc/testsuite/g++.dg/lto/pr65193_0.C
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/lto-streamer-out.c
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 8+ messages in thread
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