[Bug c++/100052] New: [11 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[Bug c++/100052] New: [11 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

            Bug ID: 100052
           Summary: [11 regression] ICE in compiling
                    g++.dg/modules/xtreme-header-3_b.C after r11-8118
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:82198676c80764ca7cf05f891afaee83b9179dd1, r11-8118

I only see this on power 9 and power 10.

FAIL: g++.dg/modules/xtreme-header-3_b.C -std=c++2a (internal compiler error)
FAIL: g++.dg/modules/xtreme-header-3_b.C -std=c++2a (test for excess errors)

hash table checking failed: equal operator returns true for a pair of values
with a different hash value^M
/home/seurer/gcc/git/gcc-test/gcc/testsuite/g++.dg/modules/xtreme-header-3_b.C:4:30:
internal compiler error: in hashtab_chk_error, at hash-table.c:137^M
0x10291ddf hashtab_chk_error()^M
        /home/seurer/gcc/git/gcc-test/gcc/hash-table.c:137^M
0x10633807 hash_table<spec_hasher, false, xcallocator>::verify(spec_entry*
const&, unsigned int)^M
        /home/seurer/gcc/git/gcc-test/gcc/hash-table.h:1033^M
0x10633fcf hash_table<spec_hasher, false,
xcallocator>::find_slot_with_hash(spec_entry* const&, unsigned int,
insert_option)^M
        /home/seurer/gcc/git/gcc-test/gcc/hash-table.h:968^M
0x105b6567 match_mergeable_specialization(bool, spec_entry*)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/pt.c:29974^M
0x104cf987 trees_in::key_mergeable(int, merge_kind, tree_node*, tree_node*,
tree_node*, tree_node*, bool)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:10670^M
0x104c6843 trees_in::decl_value()^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:7903^M
0x104c9587 trees_in::tree_node(bool)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:9153^M
0x104d5e4b module_state::read_cluster(unsigned int)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:14811^M
0x104d6333 module_state::load_section(unsigned int, binding_slot*)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:18082^M
0x104d79ef module_state::read_language(bool)^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:18011^M
0x104d7e6b direct_import^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/module.cc:18877^M
0x1055e917 cp_parser_import_declaration^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/parser.c:13881^M
0x1058491b cp_parser_translation_unit^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/parser.c:4907^M
0x1058491b c_parse_file()^M
        /home/seurer/gcc/git/gcc-test/gcc/cp/parser.c:45267^M
0x10783e1b c_common_parse_file()^M
        /home/seurer/gcc/git/gcc-test/gcc/c-family/c-opts.c:1218^M


commit 82198676c80764ca7cf05f891afaee83b9179dd1 (HEAD)
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Apr 10 10:55:58 2021 -0400

    c++: ICE with invalid use of 'this' with static memfn [PR98800]

[Bug c++/100052] [11 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
This may be related to PR 100002

[Bug c++/100052] [11 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |11.0
                 CC|                            |nathan at gcc dot gnu.org

[Bug c++/100052] [11 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hp at gcc dot gnu.org

--- Comment #2 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
Looks like another manifestation of the same bug as PR 99910; agree with H.J.,
in the comment above.

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.0                        |11.2

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 11.1 has been released, retargeting bugs to GCC 11.2.

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.2                        |11.3

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11.2 is being released, retargeting bugs to GCC 11.3

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |GC, ice-on-valid-code

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am reducing a similar bug via PR 100129, I think this is all GC related which
is why header changes and other non-looking changes in the front-end make it
come and go.

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 99479.

*** This bug has been marked as a duplicate of bug 99479 ***

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |NEW
   Last reconfirmed|                            |2021-12-30
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=103769
     Ever confirmed|0                           |1
         Resolution|DUPLICATE                   |---

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reopening this one for a little bit.

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
*** Bug 100002 has been marked as a duplicate of this bug. ***

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
           Keywords|                            |testsuite-fail

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[guojiufu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Jiu Fu Guo <guojiufu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |guojiufu at gcc dot gnu.org

--- Comment #9 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
On the latest trunk, these failures seems to disappear again.

./gcc/testsuite/g++/g++.sum:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++17
(test for excess errors)
./gcc/testsuite/g++/g++.sum:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++2a
(test for excess errors)
./gcc/testsuite/g++/g++.sum:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++2b
(test for excess errors)
./gcc/testsuite/g++/g++.log:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++17
(test for excess errors)
./gcc/testsuite/g++/g++.log:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++2a
(test for excess errors)
./gcc/testsuite/g++/g++.log:PASS: g++.dg/modules/xtreme-header-3_b.C -std=c++2b
(test for excess errors)

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[guojiufu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #10 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
While would we keep this open for a while to see if this issue occurs again.

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #11 from seurer at gcc dot gnu.org ---
These failures are still occurring.  The revision change doesn't appear to have
anything to do with it given it was the "daily bump".


Regressions on 11 (power8) on update from
5fb29a72faff6960f6b0c94119ae53af9a013d24, r11-9884-g5fb29a72faff69 to
97eda33b5fa29c2d0b602a44bdc375b034f4f9f3, r11-9885-g97eda33b5fa29c

FAIL: g++.dg/modules/xtreme-header-3_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header-3_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header-3_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header-3_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header-3_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header-3_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++17 (internal compiler error)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++2a (internal compiler error)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++2b (internal compiler error)
FAIL: g++.dg/modules/xtreme-header-3_a.H -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_b.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_b.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_b.C -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_c.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_c.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header-3_c.C -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header_a.H module-cmi
(gcm.cache/\$srcdir/g++.dg/modules/xtreme-header_a.H.gcm)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++17 (internal compiler error)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2a (internal compiler error)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2b (internal compiler error)
FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2b (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_b.C -std=c++17 (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_b.C -std=c++2a (test for excess errors)
FAIL: g++.dg/modules/xtreme-header_b.C -std=c++2b (test for excess errors)

[Bug c++/100052] [11/12 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.3                        |11.4

--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 11.3 is being released, retargeting bugs to GCC 11.4.

[Bug c++/100052] [11/12/13/14 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[guojiufu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #13 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
Pass on trunk, gcc-12, gcc-11 for xtreme-header-* cases:

make check-gcc-c++ RUNTESTFLAGS="--target_board=unix'{-m64}'
modules.exp=xtreme-header-*" 
                === g++ Summary ===

# of expected passes            72

[Bug c++/100052] [11/12/13/14 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #14 from seurer at gcc dot gnu.org ---
The failures occur erratically so one clean run doesn't mean much.  Scanning
the test results mailing list I see failures for this just today in trunk.

[Bug c++/100052] [11/12/13/14 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[guojiufu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

--- Comment #15 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
(In reply to seurer from comment #14)
> The failures occur erratically so one clean run doesn't mean much.  Scanning
> the test results mailing list I see failures for this just today in trunk.

Yeap, thanks for in time comment!  so it seems still erratic.

[Bug c++/100052] [11/12/13/14 regression] ICE in compiling g++.dg/modules/xtreme-header-3_b.C after r11-8118

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100052

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|11.4                        |11.5

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 11.4 is being released, retargeting bugs to GCC 11.5.