https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #25 from David Edelsohn ---
Author: dje
Date: Sat Nov 5 13:06:08 2016
New Revision: 241871
URL: https://gcc.gnu.org/viewcvs?rev=241871&root=gcc&view=rev
Log:
2016-11-05 Richard Biener
PR bootstrap/78188
* g++.dg/
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #24 from David Edelsohn ---
Author: dje
Date: Fri Nov 4 23:20:50 2016
New Revision: 241863
URL: https://gcc.gnu.org/viewcvs?rev=241863&root=gcc&view=rev
Log:
PR bootstrap/78188
PR c++/71848
* ipa-comdats.c (pass_ipa_comdats::gate):
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #23 from rguenther at suse dot de ---
On November 4, 2016 8:09:15 PM GMT+01:00, "dje at gcc dot gnu.org"
wrote:
>https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
>
>--- Comment #22 from David Edelsohn ---
>There are two levels of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #22 from David Edelsohn ---
There are two levels of set_comdat_group(). I am going to move the assert to
cgraph.h and try to find what else is setting comdat groups.
Do you want me to gate IPA comdat in the interim?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #21 from rguenther at suse dot de ---
On November 4, 2016 3:30:55 PM GMT+01:00, "dje at gcc dot gnu.org"
wrote:
>https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
>
>--- Comment #18 from David Edelsohn ---
>Changing pass_ipa_comdat
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #20 from David Edelsohn ---
Using set_comdat_group(NULL) in varasm.c did not correct the testsuite
failures. The only option that has worked so far is to disable ipa-comdat at
gate function.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #19 from David Edelsohn ---
I will try
if (HAVE_COMDAT_GROUP)
symbol->set_comdat_group (comdat_group);
else
symbol->set_comdat_group (NULL);
in varasm.c:make_decl_one_only().
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #18 from David Edelsohn ---
Changing pass_ipa_comdats::gate to
return HAVE_COMDAT_GROUP && optimize;
does not experience the tree-vrp.c bootstrap failure and does not generate the
numerous additional testsuite failures.
There is on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #17 from David Edelsohn ---
ld: 0711-317 ERROR: Undefined symbol: .std::allocator::allocator()
ld: 0711-317 ERROR: Undefined symbol: .std::__cxx11::basic_string, std::allocator >::basic_string(char const*,
std::allocator const&)
ld: 0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #16 from Richard Biener ---
(In reply to David Edelsohn from comment #15)
> Another option is to force the COMDAT group to NULL in set_comdat_group() if
> !HAVE_COMDAT_GROUP. That would allow the rest of the COMDAT functionality to
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #15 from David Edelsohn ---
Another option is to force the COMDAT group to NULL in set_comdat_group() if
!HAVE_COMDAT_GROUP. That would allow the rest of the COMDAT functionality to
continue to work. Does that make any sense to try?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #14 from David Edelsohn ---
Honza suggested
Index: varasm.c
===
--- varasm.c(revision 241793)
+++ varasm.c(working copy)
@@ -6036,7 +6036,8 @@
#ifdef MAKE_DECL_
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #13 from Richard Biener ---
Testcase is alongside
int a;
static void __attribute__((noinline)) foo () { a = 1; }
static void __attribute__((noinline)) foo2 () { a = 2; }
struct X
{
virtual void bar (int i) { if (!i) { foo (); __bu
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #12 from Richard Biener ---
Breakpoint 8, symtab_node::set_comdat_group (this=0x2f05ea10,
group=)
at /space/rguenther/src/gcc-git/gcc/cgraph.h:218
218|| DECL_P (group));
(gdb) p this->decl
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
Richard Biener changed:
What|Removed |Added
CC||hubicka at gcc dot gnu.org
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #10 from David Edelsohn ---
The get_create() change does change the section_type_conflict on AIX.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #9 from David Edelsohn ---
Any difference if you force more GC? AIX has a different process address space
layout and has much more aggressive memory reclamation in malloc/free.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #8 from David Edelsohn ---
Reading specs from /edelsohn/RICHI/./prev-gcc/specs
COLLECT_GCC=/edelsohn/RICHI/./prev-gcc/xg++
Target: powerpc-ibm-aix7.2.0.0
Configured with: /nasfarm/edelsohn/src/sandbox/configure --disable-werror
--enab
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #7 from Richard Biener ---
Same w/o -g.
#2 0x014f17a3 in rs6000_xcoff_declare_object_name (file=0x25634c0,
name=0x2cd771b0 "*LDFCM..0", decl=)
at /space/rguenther/src/gcc-git/gcc/config/rs6000/rs6000.c:35418
354
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #6 from Richard Biener ---
Can you also share -v output of the failing command? With just -O2 -g and a
cross from x86_64-linux to powerpc-ibm-aix7.1 I get
obj-ppc-aix/gcc> ./cc1plus -quiet t.ii -O2 -g
/nasfarm/edelsohn/src/sandbox/
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #5 from David Edelsohn ---
Created attachment 39953
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39953&action=edit
Pre-processed tree-ssa-sccvn.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #4 from Richard Biener ---
So the error message at hand is
/* Sanity check user variables for flag changes. */
if (sect->named.decl != NULL
&& DECL_P (sect->named.decl)
&& decl != sect
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
Richard Biener changed:
What|Removed |Added
Target Milestone|--- |7.0
--- Comment #3 from Richard Biener
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
--- Comment #2 from David Edelsohn ---
I built the GCC stage1 with and without the tree-vrp.c patch. Same sources,
same revision, same directory. cc1plus.good and cc1plus.bad.
Then I used both versions of cc1plus to compile tree-ssa-sccvn.c wit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78188
David Edelsohn changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
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