[Bug bootstrap/50279] New: go bootstrap fails with lto

[Bug bootstrap/50279] New: go bootstrap fails with lto

[jpfoley2 at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

             Bug #: 50279
           Summary: go bootstrap fails with lto
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: jpfoley2@verizon.net


A git checkout of gcc trunk at 982ffd8d9a1d9df5d91298d89d38293f4f3c86b4
configured with --with-build-config=bootstrap-lto
--enable-languages=all,obj-c++,go
on a gentoo linux x86_64 system with a gcc 4.5.3 bootstrap compiler
gives this error:

/root/gcc/lto/./prev-gcc/g++ -B/root/gcc/lto/./prev-gcc/
-B/usr/local/x86_64-unknown-linux-gnu/bin/ -nostdinc++
-B/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-I/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include
-I/root/gcc/libstdc++-v3/libsupc++
-L/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs   -g
-O2 -flto=jobserver -frandom-seed=1 -DIN_GCC   -W -Wall -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common 
-DHAVE_CONFIG_H -static-libstdc++ -static-libgcc  -o go1 \
      go/ast-dump.o go/dataflow.o go/export.o go/expressions.o go/go-backend.o
go/go-dump.o go/go-gcc.o go/go-lang.o go/go-optimize.o go/go.o go/gogo-tree.o
go/gogo.o go/import.o go/import-archive.o go/lex.o go/parse.o go/runtime.o
go/statements.o go/types.o go/unsafe.o attribs.o main.o tree-browser.o
libbackend.a libcommon-target.a libcommon.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a  
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a   -lppl_c -lppl 
-lgmpxx -lmpc -lmpfr -lgmp -rdynamic -ldl  -L../zlib -lz
In file included from ../../gcc/tree-ssa-address.c:1020:0,
                 from ../../gcc/coretypes.h:63,
                 from :4410:
../../gcc/go/gofrontend/gogo-tree.cc: In function 'sort':
../../gcc/go/gofrontend/gogo-tree.cc:205:32: internal compiler error: in
splice_child_die, at dwarf2out.c:5007
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [/tmp/ccgXj2ab.ltrans1.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld:
lto-wrapper failed
collect2: error: ld returned 1 exit status
make[2]: *** [go1] Error 1

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-invalid-code         |ice-on-valid-code
   Target Milestone|---                         |4.7.0

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[steffen_moeller at gmx dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

Steffen Möller <steffen_moeller at gmx dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |steffen_moeller at gmx dot
                   |                            |de

--- Comment #1 from Steffen Möller <steffen_moeller at gmx dot de> 2011-09-04 13:08:36 UTC ---
The same error occurs while compiling the Debian package autodocksuite from sid
with LTO enabled:

/usr/lib/gcc-snapshot/bin/g++  -Wall -g -flto -O2  -Winline -finline-functions 
-Wl,--as-needed -flto -o autogrid4 autogrid4-main.o autogrid4-check_size.o
autogrid4-setflags.o autogrid4-timesys.o autogrid4-timesyshms.o
autogrid4-printhms.o autogrid4-prHMSfixed.o autogrid4-printdate.o
autogrid4-strindex.o autogrid4-banner.o autogrid4-gpfparser.o
autogrid4-parsetypes.o autogrid4-atom_parameter_manager.o
autogrid4-read_parameter_library.o autogrid4-parse_param_line.o
autogrid4-distdepdiel.o  -lm 
In file included from setflags.cpp:142:0,
                 from :118:
main.cpp: In function 'main':
main.cpp:2542:1: internal compiler error: in splice_child_die, at
dwarf2out.c:5007
Please submit a full bug report,
with preprocessed source if appropriate.

$ /usr/lib/gcc-snapshot/bin/g++ --version
g++ (Debian 20110816-1) 4.7.0 20110816 (experimental) [trunk revision 177785]

Sorry for not isolating the problem more. The problem could not be observed in
g++ 4.6.1 from Debian unstable (4.6.1-8). It fails later, hence the
installation of the snapshot :) Without the LTO, everything is fine.

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

Jack Howarth <howarth at nitro dot med.uc.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |howarth at nitro dot
                   |                            |med.uc.edu

--- Comment #2 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-09-15 20:15:02 UTC ---
The same error occurs while building xplor-nih on x86_64-apple-darwin11...

[MacPro:~/xplor-nih-2.27/nmrPot/bin.Darwin_11_x86_64] howarth% g++-fsf-4.7
-dynamiclib -fdefault-integer-8 -O3 -ffast-math -funroll-loops -g -flto
-flat_namespace -undefined suppress -single_module noePot.o atomProb.o
rdcPot1.o csaPot.o jCoupPot.o shapePot.o atomDensity.o probDistPot.o
cosRatioPot.o ncsPot.o prePot.o rdcWavePot.o varTensor.o surfaceArea.o
psolPot.o orderPot.o posRMSDPot.o utils.o posSymmPot.o sphereFun.o volume.o
planeDistPot.o selNBPot.o gyrPot.o cstMagPot.o diffPot.o relaxRatioPot.o
distSymmPot.o sardcPot.o surfTessellation.o torsionDBPot.o nbTargetPot.o
solnScatPot.o -o libnmrPot.dylib -lcrypto
-L/Users/howarth/xplor-nih-2.27/bin.Darwin_11_x86_64/ -lspecfun -lsurfD
-llapack -lblas 
In file included from /Users/howarth/xplor-nih-2.27/CDSlib/cdsList.hh:380:0,
                 from /Users/howarth/xplor-nih-2.27/CDSlib/cdsSStream.cc:325,
                 from :1622:
/Users/howarth/xplor-nih-2.27/nmrPot/relaxRatioPot.hh: In member function
‘numRestraints’:
/Users/howarth/xplor-nih-2.27/nmrPot/relaxRatioPot.hh:163:37: internal compiler
error: in splice_child_die, at dwarf2out.c:5007

Using -v, shows the failure occurs in...

 /sw/lib/gcc4.7/libexec/gcc/x86_64-apple-darwin11.2.0/4.7.0/lto1 -fPIC
-feliminate-unused-debug-symbols -quiet -dumpdir ./ -dumpbase
libnmrPot.dylib.ltrans1 -mmacosx-version-min=10.7.2 -mtune=core2 -auxbase-strip
/var/folders/1l/n78sywl52lz6kkys6nv7mnph0000gp/T//ccaxwWx8.ltrans1.ltrans.o -g
-O3 -version -fdefault-integer-8 -ffast-math -funroll-loops -fltrans
@/var/folders/1l/n78sywl52lz6kkys6nv7mnph0000gp/T//cc4I8zif -o
/var/folders/1l/n78sywl52lz6kkys6nv7mnph0000gp/T//ccA4Iv2n.s

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #3 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-09-27 22:52:58 UTC ---
(In reply to comment #2)
> The same error occurs while building xplor-nih on x86_64-apple-darwin11...
> 

The failures building xplor-nih with -flto using gcc trunk are gone at r179288.

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #4 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-09-29 13:47:12 UTC ---
(In reply to comment #0)

Peter, can you retest the failing lto-bootstrap building the go compiler under
current gcc trunk? I believe honza's recent ipa-related fixes may have fixed
this.

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[jpfoley2 at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #5 from Peter Foley <jpfoley2 at verizon dot net> 2011-10-01 14:59:16 UTC ---
I still get this with fc393cf

/root/gcc/lto/./prev-gcc/g++ -B/root/gcc/lto/./prev-gcc/
-B/usr/local/x86_64-unknown-linux-gnu/bin/ -nostdinc++
-B/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-I/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include
-I/root/gcc/libstdc++-v3/libsupc++
-L/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/root/gcc/lto/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs   -g
-O2 -flto=jobserver -frandom-seed=1 -DIN_GCC   -W -Wall -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common 
-DHAVE_CONFIG_H -static-libstdc++ -static-libgcc  -o go1 \
      go/ast-dump.o go/dataflow.o go/export.o go/expressions.o go/go-backend.o
go/go-dump.o go/go-gcc.o go/go-lang.o go/go-optimize.o go/go.o go/gogo-tree.o
go/gogo.o go/import.o go/import-archive.o go/lex.o go/parse.o go/runtime.o
go/statements.o go/types.o go/unsafe.o attribs.o main.o tree-browser.o
libbackend.a libcommon-target.a libcommon.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a libcommon.a ../libcpp/libcpp.a  
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a   -lppl_c -lppl 
-lgmpxx -lmpc -lmpfr -lgmp -rdynamic -ldl  -L../zlib -lz
In member function '_M_insert_aux':
lto1: internal compiler error: in splice_child_die, at dwarf2out.c:5007
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[4]: *** [/tmp/ccOGb3DK.ltrans2.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld:
lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [go1] Error 1

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[jpfoley2 at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #6 from Peter Foley <jpfoley2 at verizon dot net> 2011-10-06 00:09:03 UTC ---
Created attachment 25426
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25426
reduced testcase

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[jpfoley2 at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #7 from Peter Foley <jpfoley2 at verizon dot net> 2011-10-06 00:11:08 UTC ---
I've attached a reduced testcase that reproduces the ICE with the commandline
g++ -nostdlib -flto -g test.i

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #8 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-10-10 18:03:47 UTC ---
(In reply to comment #7)
> I've attached a reduced testcase that reproduces the ICE with the commandline
> g++ -nostdlib -flto -g test.i

This test case doesn't trigger the ICE on x86_64-apple-darwin11...

howarth% g++-fsf-4.7 -nostdlib -flto -g -c test.ii
howarth% 

Note on darwin '-c' is required, else the test case fails with...

howarth% g++-fsf-4.7 -nostdlib -flto -g test.ii
ld: warning: symbol dyld_stub_binder not found, normally in libSystem.dylib
ld: entry point (start) undefined.  Usually in crt1.o for architecture x86_64
collect2: error: ld returned 1 exit status

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[jpfoley2 at verizon dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

--- Comment #9 from Peter Foley <jpfoley2 at verizon dot net> 2011-10-10 20:34:01 UTC ---
(In reply to comment #8)
> (In reply to comment #7)
> > I've attached a reduced testcase that reproduces the ICE with the commandline
> > g++ -nostdlib -flto -g test.i
> 
> This test case doesn't trigger the ICE on x86_64-apple-darwin11...
> 
> howarth% g++-fsf-4.7 -nostdlib -flto -g -c test.ii
> howarth% 
> 
> Note on darwin '-c' is required, else the test case fails with...
> 
> howarth% g++-fsf-4.7 -nostdlib -flto -g test.ii
> ld: warning: symbol dyld_stub_binder not found, normally in libSystem.dylib
> ld: entry point (start) undefined.  Usually in crt1.o for architecture x86_64
> collect2: error: ld returned 1 exit status

-c prevents the test case from triggering the ICE on x86_64-pc-linux-gnu for me
as well. Try removing -nostdlib from the commandline.

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-11-30
     Ever Confirmed|0                           |1

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-11-30 23:45:55 UTC ---
Confirmed:
apinski@apinskidesktop:~/src/gcc-fsf/local/gcc/objdir/gcc$ ~/local-gcc/bin/g++
t.cc -flto -g -r  -nostdlib
lto1: internal compiler error: in splice_child_die, at dwarf2out.c:5009
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: /home/apinski/local-gcc/bin/g++ returned 1 exit status
collect2: error: lto-wrapper returned 1 exit status

[Bug debug/50279] [4.7 Regression] ICE while building the go front-end with LTO enabled

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50279

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

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

--- Comment #11 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-09 12:31:36 UTC ---
dup

*** This bug has been marked as a duplicate of bug 48354 ***