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* [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE
@ 2015-02-10 14:29 jakub at gcc dot gnu.org
2015-02-10 14:35 ` [Bug middle-end/65003] " jakub at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-10 14:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Bug ID: 65003
Summary: [5 Regression] -fsection-anchors ICE
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
Target: armv7hl-linux-gnuaebi
struct A
{
void operator= (A &);
A ();
};
struct B
{
A b;
};
struct C
{
virtual bool foo (int &, bool) const;
};
struct D : virtual C
{
bool foo (int &, bool) const;
B e;
};
struct F : D
{
F (int &, const int &, const A &);
bool foo (int &, bool) const;
};
bool D::foo (int &, bool) const {}
F::F (int &, const int &, const A &) {}
bool F::foo (int &, bool) const {}
ICEs on armv7hl-linux-gnuaebi, with -O2 -fpic. I believe the bug has been
introduced with r211045, but haven't verified it.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
@ 2015-02-10 14:35 ` jakub at gcc dot gnu.org
2015-02-10 14:36 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-10 14:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-02-10
Ever confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
snode = symtab_node::get (decl);
if (snode->alias)
{
rtx target = DECL_RTL (snode->ultimate_alias_target ()->decl);
place_block_symbol (target);
SYMBOL_REF_BLOCK_OFFSET (symbol) = SYMBOL_REF_BLOCK_OFFSET (target);
return;
}
is of course bogus, DECL_RTL is very unlikely a SYMBOL_REF, it should be a MEM
with SYMBOL_REF as operand. The question is if we can assert that. If that
wouldn't be the case, I guess the optimizers would need to prevent creation of
the alias.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
2015-02-10 14:35 ` [Bug middle-end/65003] " jakub at gcc dot gnu.org
@ 2015-02-10 14:36 ` rguenth at gcc dot gnu.org
2015-02-10 15:09 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-02-10 14:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
2015-02-10 14:35 ` [Bug middle-end/65003] " jakub at gcc dot gnu.org
2015-02-10 14:36 ` rguenth at gcc dot gnu.org
@ 2015-02-10 15:09 ` jakub at gcc dot gnu.org
2015-02-11 15:10 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-10 15:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34713
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34713&action=edit
gcc5-pr65003.patch
Untested fix. If the assert ever triggers, I guess we'll need to do something
smarter in the cgraph area.
Note that symbols that are aliases from the beginning aren't a problem here,
the only problem is if a symbol has RTL created too early (in this case because
of notice_global_symbol) and then IPA or whatever turns it into an alias to
some other symbol.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (2 preceding siblings ...)
2015-02-10 15:09 ` jakub at gcc dot gnu.org
@ 2015-02-11 15:10 ` jakub at gcc dot gnu.org
2015-02-11 15:13 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-11 15:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Feb 11 15:09:48 2015
New Revision: 220625
URL: https://gcc.gnu.org/viewcvs?rev=220625&root=gcc&view=rev
Log:
PR middle-end/65003
* varasm.c (place_block_symbol): Assert that DECL_RTL of the
ultimate alias is MEM with SYMBOL_REF satisfying
SYMBOL_REF_HAS_BLOCK_INFO_P as its operand. Don't pass the MEM
to place_block_symbol, but instead pass the SYMBOL_REF operand of it.
* g++.dg/opt/pr65003.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr65003.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/varasm.c
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (3 preceding siblings ...)
2015-02-11 15:10 ` jakub at gcc dot gnu.org
@ 2015-02-11 15:13 ` jakub at gcc dot gnu.org
2015-02-12 13:33 ` ramana at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-02-11 15:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (4 preceding siblings ...)
2015-02-11 15:13 ` jakub at gcc dot gnu.org
@ 2015-02-12 13:33 ` ramana at gcc dot gnu.org
2015-02-12 13:33 ` ramana at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: ramana at gcc dot gnu.org @ 2015-02-12 13:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |doko at gcc dot gnu.org
--- Comment #5 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
*** Bug 65036 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (5 preceding siblings ...)
2015-02-12 13:33 ` ramana at gcc dot gnu.org
@ 2015-02-12 13:33 ` ramana at gcc dot gnu.org
2015-02-12 13:34 ` ramana at gcc dot gnu.org
2015-02-12 13:34 ` ramana at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: ramana at gcc dot gnu.org @ 2015-02-12 13:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
--- Comment #6 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
*** Bug 65035 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (6 preceding siblings ...)
2015-02-12 13:33 ` ramana at gcc dot gnu.org
@ 2015-02-12 13:34 ` ramana at gcc dot gnu.org
2015-02-12 13:34 ` ramana at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: ramana at gcc dot gnu.org @ 2015-02-12 13:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
--- Comment #8 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
*** Bug 65031 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/65003] [5 Regression] -fsection-anchors ICE
2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
` (7 preceding siblings ...)
2015-02-12 13:34 ` ramana at gcc dot gnu.org
@ 2015-02-12 13:34 ` ramana at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: ramana at gcc dot gnu.org @ 2015-02-12 13:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65003
--- Comment #7 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
*** Bug 65030 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
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2015-02-10 14:29 [Bug middle-end/65003] New: [5 Regression] -fsection-anchors ICE jakub at gcc dot gnu.org
2015-02-10 14:35 ` [Bug middle-end/65003] " jakub at gcc dot gnu.org
2015-02-10 14:36 ` rguenth at gcc dot gnu.org
2015-02-10 15:09 ` jakub at gcc dot gnu.org
2015-02-11 15:10 ` jakub at gcc dot gnu.org
2015-02-11 15:13 ` jakub at gcc dot gnu.org
2015-02-12 13:33 ` ramana at gcc dot gnu.org
2015-02-12 13:33 ` ramana at gcc dot gnu.org
2015-02-12 13:34 ` ramana at gcc dot gnu.org
2015-02-12 13:34 ` ramana at gcc dot gnu.org
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