[Bug bootstrap/66994] New: [6 Regression] ICE: Segmentation fault during PGO bootstrap

[Bug bootstrap/66994] New: [6 Regression] ICE: Segmentation fault during PGO bootstrap

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

            Bug ID: 66994
           Summary: [6 Regression] ICE: Segmentation fault during PGO
                    bootstrap
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
  Target Milestone: ---

Seen on ppc64le during stageprofile build of libstdc++-v3:

libtool: compile:  /home/trippels/gcc_build_dir__/./gcc/xgcc -shared-libgcc
-B/home/trippels/gcc_build_dir__/./gcc -nostdinc++
-L/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/src
-L/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-B/usr/local/powerpc64le-unknown-linux-gnu/bin/
-B/usr/local/powerpc64le-unknown-linux-gnu/lib/ -isystem
/usr/local/powerpc64le-unknown-linux-gnu/include -isystem
/usr/local/powerpc64le-unknown-linux-gnu/sys-include
-I/home/trippels/gcc/libstdc++-v3/../libgcc
-I/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/powerpc64le-unknown-linux-gnu
-I/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/include
-I/home/trippels/gcc/libstdc++-v3/libsupc++ -D_GLIBCXX_SHARED
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections
-frandom-seed=eh_call.lo -g -O2 -D_GNU_SOURCE -c
../../../../gcc/libstdc++-v3/libsupc++/eh_call.cc  -fPIC -DPIC
-D_GLIBCXX_SHARED -o eh_call.o
In file included from /usr/include/stdlib.h:42:0,
                 from
/home/trippels/gcc_build_dir__/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/cstdlib:72,
                 from ../../../../gcc/libstdc++-v3/libsupc++/eh_call.cc:26:
/usr/include/bits/waitstatus.h:73:28: internal compiler error: Segmentation
fault
  unsigned int __w_coredump:1; /* Set if dumped core.  */
                            ^
0x1106c737 crash_signal
        ../../gcc/gcc/toplev.c:352
0x103483d4 make_id_declarator
        ../../gcc/gcc/cp/parser.c:1420
0x1036bfd7 cp_parser_member_declaration
        ../../gcc/gcc/cp/parser.c:21003
0x1036d09b cp_parser_member_specification_opt
        ../../gcc/gcc/cp/parser.c:20707
0x1036d09b cp_parser_class_specifier_1
        ../../gcc/gcc/cp/parser.c:19899
0x1036d09b cp_parser_class_specifier
        ../../gcc/gcc/cp/parser.c:20135
0x1037208b cp_parser_type_specifier
        ../../gcc/gcc/cp/parser.c:14733
0x1037273b cp_parser_decl_specifier_seq
        ../../gcc/gcc/cp/parser.c:11969
0x1036b907 cp_parser_member_declaration
        ../../gcc/gcc/cp/parser.c:20852
0x1036d09b cp_parser_member_specification_opt
        ../../gcc/gcc/cp/parser.c:20707
0x1036d09b cp_parser_class_specifier_1
        ../../gcc/gcc/cp/parser.c:19899
0x1036d09b cp_parser_class_specifier
        ../../gcc/gcc/cp/parser.c:20135
0x1037208b cp_parser_type_specifier
        ../../gcc/gcc/cp/parser.c:14733
0x1037273b cp_parser_decl_specifier_seq
        ../../gcc/gcc/cp/parser.c:11969
0x10394223 cp_parser_simple_declaration
        ../../gcc/gcc/cp/parser.c:11545
0x103a040b cp_parser_block_declaration
        ../../gcc/gcc/cp/parser.c:11492
0x10351c8b cp_parser_declaration
        ../../gcc/gcc/cp/parser.c:11389
0x103acbef cp_parser_declaration_seq_opt
        ../../gcc/gcc/cp/parser.c:11275
0x103ad633 cp_parser_linkage_specification
        ../../gcc/gcc/cp/parser.c:12162
0x10351dc7 cp_parser_declaration
        ../../gcc/gcc/cp/parser.c:11333
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.

[Bug bootstrap/66994] [6 Regression] ICE: Segmentation fault during bootstrap-O3

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[6 Regression] ICE:         |[6 Regression] ICE:
                   |Segmentation fault during   |Segmentation fault during
                   |PGO bootstrap               |bootstrap-O3

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
--with-build-config="bootstrap-O3" is enough to trigger the ICE.

[Bug bootstrap/66994] [6 Regression] ICE: Segmentation fault during bootstrap-O3

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Is this caused by r226113?

[Bug bootstrap/66994] [6 Regression] ICE: Segmentation fault during bootstrap-O3

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #2)
> Is this caused by r226113?

Maybe.

With r226113 I get: internal compiler error: Segmentation fault
With r226112 I get: internal compiler error: output_operand: invalid %p value

[Bug bootstrap/66994] [6 Regression] ICE: Segmentation fault during bootstrap-O3

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |6.0

[Bug bootstrap/66994] [6 Regression] ICE: Segmentation fault during bootstrap-O3

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66994

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

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

--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Cannot reproduce the issue anymore. Closing.