[Bug bootstrap/66340] New: [6 Regression] profiledbootstrap failure on x86-64 with LTO

[Bug bootstrap/66340] New: [6 Regression] profiledbootstrap failure on x86-64 with LTO

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66340

            Bug ID: 66340
           Summary: [6 Regression] profiledbootstrap failure on x86-64
                    with LTO
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: rguenther at suse dot de
  Target Milestone: ---

On Linux/x86-64, r223861 caused:

./../src-trunk/gcc/cfgcleanup.c: In function âdelete_dead_jumptablesâ:
../../src-trunk/gcc/cfgcleanup.c:2991:1: internal compiler error: in
dfs_enumerate_from, at cfganal.c:1195
 delete_dead_jumptables (void)
 ^
0x6c9386 dfs_enumerate_from(basic_block_def*, int, bool (*)(basic_block_def
const*, void const*), basic_block_def**, int, void const*)
        ../../src-trunk/gcc/cfganal.c:1195
0x114dd7e determine_bb_domination_status
        ../../src-trunk/gcc/tree-ssa-threadupdate.c:1768
0x114dd7e thread_through_loop_header
        ../../src-trunk/gcc/tree-ssa-threadupdate.c:1953
0x1150c28 thread_through_all_blocks(bool)
        ../../src-trunk/gcc/tree-ssa-threadupdate.c:2667
0x1003d5b execute
        ../../src-trunk/gcc/tree-ssa-dom.c:1244
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.
make[7]: *** [/tmp/ccgXjrua.ltrans11.ltrans.o] Error 1
make[7]: *** Waiting for unfinished jobs....
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/local/bin/ld: error: lto-wrapper failed

when profiledbootstrap with LTO:

configure
--prefix=/export/gnu/import/git/gcc-regression-bootstrap/master/223861/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--enable-languages=c,c++ --enable-bootstrap --with-fpmath=sse
--with-build-config=bootstrap-lto --disable-werror --disable-multilib
--disable-libcc1 --disable-libcilkrts --disable-libsanitizer

make -j8 profiledbootstrap
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Subject: [Bug c++/66339] g++ 5.1.0 Generates memory leak
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf339

Andreas Schwab <schwab@linux-m68k.org> changed:

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

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
This is not a leak.  The memory is still reachable and there is no point in
freeing it if the program is exiting anyway.

[Bug bootstrap/66340] [6 Regression] profiledbootstrap failure on x86-64 with LTO

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66340

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-05-31
             Blocks|                            |66349
   Target Milestone|---                         |6.0
     Ever confirmed|0                           |1


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66349
[Bug 66349] ICE on valid code at -O1, -O2 and -O3 on x86_64-linux-gnu in
dfs_enumerate_from, at cfganal.c:1195

[Bug bootstrap/66340] [6 Regression] profiledbootstrap failure on x86-64 with LTO

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66340

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.

[Bug bootstrap/66340] [6 Regression] profiledbootstrap failure on x86-64 with LTO

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66340

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

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

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Patch reverted.