[Bug bootstrap/49740] New: [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[Bug bootstrap/49740] New: [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

           Summary: [4.7 Regression] powerpc native bootstrap with -O3
                    produces "Bootstrap comparison failure!"
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dougmencken@gmail.com


"Bootstrap comparison failure!"

After http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49474 (well-hidden wrong
comparison in rtl (cprop.c)) has been fixed, I succeeded to stage3, and got:

Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/fold-const.o differs
gcc/tree-into-ssa.o differs
gcc/cfgrtl.o differs
gcc/gimplify.o differs
gcc/build/genattrtab.o differs
...

Full bootstrap log is available at:
http://ftp.osuosl.org/pub/manulix/logs+errors/gcc-v4.7-20110709-bootstrap.log

[Bug bootstrap/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

Douglas Mencken <dougmencken at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|minor                       |normal

[Bug bootstrap/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |powerpc-*-*
   Target Milestone|---                         |4.7.0

[Bug bootstrap/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2011.08.02 14:29:41
     Ever Confirmed|0                           |1

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-02 14:29:41 UTC ---
Did it recover?

[Bug bootstrap/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

--- Comment #2 from Douglas Mencken <dougmencken at gmail dot com> 2011-08-03 14:56:23 UTC ---
(In reply to comment #1)
> Did it recover?

What shall I try? gcc-4.7-20110730? svn checkout? Some patch? (Nothing has been
attached or reported.)

[Bug bootstrap/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

--- Comment #3 from Douglas Mencken <dougmencken at gmail dot com> 2011-08-11 15:21:40 UTC ---
As for snapshot gcc-v4.7-20110806, I got
"../../gcc-v4.7-20110806.sourcedir/gcc/haifa-sched.c:5971:1: internal compiler
error: in check_cfg, at haifa-sched.c:6074" on stage2, so I can't test stage3
-to-stage2 comparison with it.

/root/build-farm/_gcc_bootstrap/./prev-gcc/g++
-B/root/build-farm/_gcc_bootstrap/./prev-gcc/
-B/usr/powerpc-gnu-linux-uclibc/bin/ -nostdinc++
-B/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/src/.libs
-B/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/libsupc++/.libs
-I/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/include/powerpc-gnu-linux-uclibc
-I/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/include
-I/root/build-farm/gcc-v4.7-20110806.sourcedir/libstdc++-v3/libsupc++
-L/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/src/.libs
-L/root/build-farm/_gcc_bootstrap/prev-powerpc-gnu-linux-uclibc/libstdc++-v3/libsupc++/.libs
-c  -O3 -gtoggle -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual
-Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings   -DHAVE_CONFIG_H -I. -I.
-I../../gcc-v4.7-20110806.sourcedir/gcc
-I../../gcc-v4.7-20110806.sourcedir/gcc/.
-I../../gcc-v4.7-20110806.sourcedir/gcc/../include
-I../../gcc-v4.7-20110806.sourcedir/gcc/../libcpp/include 
-I../../gcc-v4.7-20110806.sourcedir/gcc/../libdecnumber
-I../../gcc-v4.7-20110806.sourcedir/gcc/../libdecnumber/dpd -I../libdecnumber  
 ../../gcc-v4.7-20110806.sourcedir/gcc/haifa-sched.c -o haifa-sched.o
../../gcc-v4.7-20110806.sourcedir/gcc/haifa-sched.c: In function 'rtx_def*
bb_note(basic_block)':
../../gcc-v4.7-20110806.sourcedir/gcc/haifa-sched.c:5971:1: internal compiler
error: in check_cfg, at haifa-sched.c:6074
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [haifa-sched.o] Error 1
make[3]: Leaving directory `/root/build-farm/_gcc_bootstrap/gcc'
make[2]: *** [all-stage2-gcc] Error 2
make[2]: Leaving directory `/root/build-farm/_gcc_bootstrap'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/root/build-farm/_gcc_bootstrap'
make: *** [all] Error 2

[Bug target/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |build
             Target|powerpc-*-*                 |powerpc-*-uclibc
          Component|bootstrap                   |target

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-10 11:56:09 UTC ---
Still broken?  Please post your exact configure line and what host system
you are on.

[Bug target/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

--- Comment #5 from Douglas Mencken <dougmencken at gmail dot com> 2011-10-12 20:03:14 UTC ---
(In reply to comment #4)

Yep, it's still broken (gcc-4.7-20111008).

Configure line:

./gcc-v4.7-20111008.sourcedir/configure --prefix=/usr --sysconfdir=/etc
--mandir=/usr/share/man --build=powerpc-gnu-linux-uclibc
--host=powerpc-gnu-linux-uclibc --target=powerpc-gnu-linux-uclibc
--enable-languages=c,c++,fortran,java --enable-stage1-languages=c,fortran
--with-cpu=default32 --enable-threads=posix --with-system-zlib
--with-system-libffi --with-libiconv-prefix=/usr --disable-nls --disable-werror
--disable-multilib --disable-libssp --disable-__cxa_atexit --disable-checking
--enable-shared --without-gjdoc --enable-libgcj --enable-libgcj-multifile
--enable-interpreter --disable-libjava-multilib --disable-browser-plugin

I'm on GNU/uClibc/Linux@PowerPC.

$ tail -100 _gcc_bootstrap_log 
mv -f .deps/affinity.Tpo .deps/affinity.Plo
/bin/bash ./libtool --tag CC   --mode=link
/root/build-farm/_gcc_bootstrap/./gcc/xgcc
-B/root/build-farm/_gcc_bootstrap/./gcc/ -B/usr/powerpc-gnu-linux-uclibc/bin/
-B/usr/powerpc-gnu-linux-uclibc/lib/ -isystem
/usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include    -Wall -Werror
-ftls-model=initial-exec -Wc,-pthread -g -O3   -Wl,-O1   -o libgomp.la
-version-info 1:0:0
-Wl,--version-script,../../../gcc-v4.7-20111008.sourcedir/libgomp/libgomp.map 
-rpath /usr/lib alloc.lo barrier.lo critical.lo env.lo error.lo iter.lo
iter_ull.lo loop.lo loop_ull.lo ordered.lo parallel.lo sections.lo single.lo
task.lo team.lo work.lo lock.lo mutex.lo proc.lo sem.lo bar.lo ptrlock.lo
time.lo fortran.lo affinity.lo  
libtool: link: /root/build-farm/_gcc_bootstrap/./gcc/xgcc
-B/root/build-farm/_gcc_bootstrap/./gcc/ -B/usr/powerpc-gnu-linux-uclibc/bin/
-B/usr/powerpc-gnu-linux-uclibc/lib/ -isystem
/usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include    -shared  .libs/alloc.o
.libs/barrier.o .libs/critical.o .libs/env.o .libs/error.o .libs/iter.o
.libs/iter_ull.o .libs/loop.o .libs/loop_ull.o .libs/ordered.o .libs/parallel.o
.libs/sections.o .libs/single.o .libs/task.o .libs/team.o .libs/work.o
.libs/lock.o .libs/mutex.o .libs/proc.o .libs/sem.o .libs/bar.o .libs/ptrlock.o
.libs/time.o .libs/fortran.o .libs/affinity.o    -pthread -Wl,-O1
-Wl,--version-script
-Wl,../../../gcc-v4.7-20111008.sourcedir/libgomp/libgomp.map   -Wl,-soname
-Wl,libgomp.so.1 -o .libs/libgomp.so.1.0.0
libtool: link: (cd ".libs" && rm -f "libgomp.so.1" && ln -s "libgomp.so.1.0.0"
"libgomp.so.1")
libtool: link: (cd ".libs" && rm -f "libgomp.so" && ln -s "libgomp.so.1.0.0"
"libgomp.so")
libtool: link: /usr/powerpc-gnu-linux-uclibc/bin/ar rc .libs/libgomp.a  alloc.o
barrier.o critical.o env.o error.o iter.o iter_ull.o loop.o loop_ull.o
ordered.o parallel.o sections.o single.o task.o team.o work.o lock.o mutex.o
proc.o sem.o bar.o ptrlock.o time.o fortran.o affinity.o
libtool: link: /usr/powerpc-gnu-linux-uclibc/bin/ranlib .libs/libgomp.a
libtool: link: ( cd ".libs" && rm -f "libgomp.la" && ln -s "../libgomp.la"
"libgomp.la" )
true  DO=all multi-do # make
/root/build-farm/_gcc_bootstrap/./gcc/gfortran
-B/root/build-farm/_gcc_bootstrap/./gcc/ -B/usr/powerpc-gnu-linux-uclibc/bin/
-B/usr/powerpc-gnu-linux-uclibc/lib/ -isystem
/usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include    -L. -Wall -L../libgfortran
-fsyntax-only omp_lib.f90
:
make[5]: Leaving directory
`/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libgomp'
make[4]: Leaving directory
`/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libgomp'
make[3]: Leaving directory
`/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libgomp'
make[2]: Leaving directory `/root/build-farm/_gcc_bootstrap'
make "DESTDIR=" "RPATH_ENVVAR=LD_LIBRARY_PATH"
"TARGET_SUBDIR=powerpc-gnu-linux-uclibc" "bindir=/usr/bin" "datadir=/usr/share"
"exec_prefix=/usr" "includedir=/usr/include" "datarootdir=/usr/share"
"docdir=/usr/share/doc/" "infodir=/usr/share/info" "pdfdir=/usr/share/doc/"
"htmldir=/usr/share/doc/" "libdir=/usr/lib" "libexecdir=/usr/libexec"
"lispdir=" "localstatedir=/usr/var" "mandir=/usr/share/man"
"oldincludedir=/usr/include" "prefix=/usr" "sbindir=/usr/sbin"
"sharedstatedir=/usr/com" "sysconfdir=/etc"
"tooldir=/usr/powerpc-gnu-linux-uclibc"
"build_tooldir=/usr/powerpc-gnu-linux-uclibc"
"target_alias=powerpc-gnu-linux-uclibc" "AWK=awk" "BISON=bison"
"CC_FOR_BUILD=powerpc-gnu-linux-uclibc-gcc" "CFLAGS_FOR_BUILD=-O3"
"CXX_FOR_BUILD=powerpc-gnu-linux-uclibc-g++" "EXPECT=expect" "FLEX=flex"
"INSTALL=/usr/bin/install -c" "INSTALL_DATA=/usr/bin/install -c -m 644"
"INSTALL_PROGRAM=/usr/bin/install -c" "INSTALL_SCRIPT=/usr/bin/install -c"
"LDFLAGS_FOR_BUILD=" "LEX=flex" "M4=m4" "MAKE=make" "RUNTEST=runtest"
"RUNTESTFLAGS=" "SED=/bin/sed" "SHELL=/bin/bash" "YACC=bison -y" "`echo
'ADAFLAGS=' | sed -e s'/[^=][^=]*=$/XFOO=/'`" "ADA_CFLAGS=" "AR_FLAGS=rc"
"`echo 'BOOT_ADAFLAGS=-gnatpg -gnata' | sed -e s'/[^=][^=]*=$/XFOO=/'`"
"BOOT_CFLAGS=-O3" "BOOT_LDFLAGS=" "CFLAGS=-O3" "CXXFLAGS=-O3" "LDFLAGS="
"LIBCFLAGS=-O3" "LIBCXXFLAGS=-O3 -fno-implicit-templates"
"STAGE1_CHECKING=--enable-checking=yes,types"
"STAGE1_LANGUAGES=c,c++,fortran,lto" "GNATBIND=no" "GNATMAKE=no"
"AR_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/ar"
"AS_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/as"
"CC_FOR_TARGET=/root/build-farm/_gcc_bootstrap/./gcc/xgcc
-B/root/build-farm/_gcc_bootstrap/./gcc/" "CFLAGS_FOR_TARGET=-g -O3"
"CPPFLAGS_FOR_TARGET=" "CXXFLAGS_FOR_TARGET=-O3 -D_GNU_SOURCE"
"DLLTOOL_FOR_TARGET=dlltool"
"FLAGS_FOR_TARGET=-B/usr/powerpc-gnu-linux-uclibc/bin/
-B/usr/powerpc-gnu-linux-uclibc/lib/ -isystem
/usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include"
"GCJ_FOR_TARGET=/root/build-farm/_gcc_bootstrap/./gcc/gcj
-B/root/build-farm/_gcc_bootstrap/./gcc/"
"GFORTRAN_FOR_TARGET=/root/build-farm/_gcc_bootstrap/./gcc/gfortran
-B/root/build-farm/_gcc_bootstrap/./gcc/" "GOC_FOR_TARGET="
"GOCFLAGS_FOR_TARGET=-O3" "LD_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/ld"
"LIPO_FOR_TARGET=lipo" "LDFLAGS_FOR_TARGET=" "LIBCFLAGS_FOR_TARGET=-g -O3"
"LIBCXXFLAGS_FOR_TARGET=-O3 -D_GNU_SOURCE -fno-implicit-templates"
"NM_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/nm"
"OBJDUMP_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/objdump"
"RANLIB_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/ranlib"
"STRIP_FOR_TARGET=/usr/powerpc-gnu-linux-uclibc/bin/strip"
"WINDRES_FOR_TARGET=windres" "WINDMC_FOR_TARGET=windmc"
"BUILD_CONFIG=bootstrap-debug" "`echo 'LANGUAGES=' | sed -e
s'/[^=][^=]*=$/XFOO=/'`" "LEAN=false" "STAGE1_CFLAGS=-g
-fkeep-inline-functions" "STAGE1_CXXFLAGS=-g -fkeep-inline-functions"
"STAGE1_TFLAGS=" "STAGE2_CFLAGS=-O3 -gtoggle" "STAGE2_CXXFLAGS=-O3 -gtoggle"
"STAGE2_TFLAGS=" "STAGE3_CFLAGS=-O3" "STAGE3_CXXFLAGS=-O3" "STAGE3_TFLAGS="
"STAGE4_CFLAGS=-O3" "STAGE4_CXXFLAGS=-O3" "STAGE4_TFLAGS="
"STAGEprofile_CFLAGS=-O3 -gtoggle -fprofile-generate"
"STAGEprofile_CXXFLAGS=-O3 -gtoggle -fprofile-generate" "STAGEprofile_TFLAGS="
"STAGEfeedback_CFLAGS=-O3 -fprofile-use" "STAGEfeedback_CXXFLAGS=-O3
-fprofile-use" "STAGEfeedback_TFLAGS=" "CXX_FOR_TARGET= $r/./gcc/g++
-B$r/./gcc/ -nostdinc++ `if test -f
$r/powerpc-gnu-linux-uclibc/libstdc++-v3/scripts/testsuite_flags; then
/bin/bash $r/powerpc-gnu-linux-uclibc/libstdc++-v3/scripts/testsuite_flags
--build-includes; else echo -funconfigured-libstdc++-v3 ; fi`
-L$r/powerpc-gnu-linux-uclibc/libstdc++-v3/src
-L$r/powerpc-gnu-linux-uclibc/libstdc++-v3/src/.libs" "TFLAGS="
"CONFIG_SHELL=/bin/bash" "MAKEINFO=makeinfo --split-size=5000000
--split-size=5000000"  compare
make[2]: Entering directory `/root/build-farm/_gcc_bootstrap'
make[3]: Entering directory `/root/build-farm/_gcc_bootstrap'
rm -f stage_current
make[3]: Leaving directory `/root/build-farm/_gcc_bootstrap'
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/fold-const.o differs
gcc/emit-rtl.o differs
gcc/gimple-fold.o differs
gcc/tree-into-ssa.o differs
gcc/tree-predcom.o differs
gcc/cfgrtl.o differs
gcc/tree-sra.o differs
gcc/gimplify.o differs
gcc/build/gengtype-parse.o differs
gcc/build/genattrtab.o differs
gcc/build/genautomata.o differs
gcc/build/gengtype-state.o differs
gcc/tree-ssa-loop-ivopts.o differs
gcc/gtype-desc.o differs
gcc/tree-vect-stmts.o differs
gcc/expr.o differs
gcc/cp/decl.o differs
gcc/cp/tree.o differs
gcc/cp/pt.o differs
gcc/cp/class.o differs
gcc/cp/name-lookup.o differs
gcc/cp/semantics.o differs
gcc/cp/typeck.o differs
gcc/cp/parser.o differs
gcc/var-tracking.o differs
gcc/haifa-sched.o differs
gcc/tree.o differs
gcc/dbxout.o differs
gcc/sched-rgn.o differs
gcc/sel-sched-ir.o differs
gcc/sel-sched.o differs
gcc/tree-vect-patterns.o differs
gcc/tree-data-ref.o differs
gcc/tree-ssa-pre.o differs
gcc/optabs.o differs
gcc/builtins.o differs
gcc/sched-deps.o differs
gcc/tree-ssa-ter.o differs
gcc/tree-ssa-structalias.o differs
gcc/gimple-pretty-print.o differs
gcc/tree-ssa-sccvn.o differs
gcc/dwarf2out.o differs
gcc/ipa-prop.o differs
gcc/gengtype-state.o differs
gcc/gcc.o differs
gcc/ira-lives.o differs
gcc/gimple.o differs
gcc/c-parser.o differs
gcc/tree-vrp.o differs
gcc/tree-parloops.o differs
gcc/rs6000.o differs
gcc/c-family/c-common.o differs
gcc/fortran/check.o differs
gcc/fortran/arith.o differs
gcc/fortran/symbol.o differs
gcc/fortran/resolve.o differs
gcc/fortran/simplify.o differs
gcc/fortran/array.o differs
gcc/fortran/module.o differs
gcc/fortran/trans-array.o differs
gcc/fortran/io.o differs
gcc/dse.o differs
gcc/cfgexpand.o differs
gcc/java/jcf-parse.o differs
gcc/java/expr.o differs
gcc/java/verify-impl.o differs
libcpp/directives.o differs
libiberty/cp-demangle.o differs
libiberty/cplus-dem.o differs
libiberty/pic/cplus-dem.o differs
lto-plugin/.libs/lto-plugin.o differs
make[2]: *** [compare] Error 1
make[2]: Leaving directory `/root/build-farm/_gcc_bootstrap'
make[1]: *** [stage3-bubble] Error 2
make[1]: Leaving directory `/root/build-farm/_gcc_bootstrap'
make: *** [all] Error 2

[Bug target/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

Douglas Mencken <dougmencken at gmail dot com> changed:

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

--- Comment #6 from Douglas Mencken <dougmencken at gmail dot com> 2011-10-14 16:29:55 UTC ---
Bootstrapping without --disble-checking gave me on stage3 (libjava):

libtool: compile:  /root/build-farm/_gcc_bootstrap/./gcc/xgcc -shared-libgcc
-B/root/build-farm/_gcc_bootstrap/./gcc -nostdinc++
-L/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libstdc++-v3/src
-L/root/build-farm/_gcc_bootstrap/powerpc-gnu-linux-uclibc/libstdc++-v3/src/.libs
-B/usr/powerpc-gnu-linux-uclibc/bin/ -B/usr/powerpc-gnu-linux-uclibc/lib/
-isystem /usr/powerpc-gnu-linux-uclibc/include -isystem
/usr/powerpc-gnu-linux-uclibc/sys-include -DHAVE_CONFIG_H -I.
-I../../../gcc-v4.7-20111008.sourcedir/libjava -I./include -I./gcj
-I../../../gcc-v4.7-20111008.sourcedir/libjava -Iinclude
-I../../../gcc-v4.7-20111008.sourcedir/libjava/include
-I../../../gcc-v4.7-20111008.sourcedir/libjava/classpath/include
-Iclasspath/include
-I../../../gcc-v4.7-20111008.sourcedir/libjava/classpath/native/fdlibm
-I../../../gcc-v4.7-20111008.sourcedir/libjava/../boehm-gc/include
-I../boehm-gc/include -I../../../gcc-v4.7-20111008.sourcedir/libjava/libltdl
-I../../../gcc-v4.7-20111008.sourcedir/libjava/libltdl
-I../../../gcc-v4.7-20111008.sourcedir/libjava/.././libjava/../libgcc
-I../../../gcc-v4.7-20111008.sourcedir/libjava/../libffi/include
-I../libffi/include -fno-rtti -fnon-call-exceptions -fdollars-in-identifiers
-Wswitch-enum -D_FILE_OFFSET_BITS=64 -Wextra -Wall -D_GNU_SOURCE
-DPREFIX=\"/usr\" -DTOOLEXECLIBDIR=\"/usr/lib\" -DJAVA_HOME=\"/usr\"
-DBOOT_CLASS_PATH=\"/usr/share/java/libgcj-4.7.0.jar\"
-DJAVA_EXT_DIRS=\"/usr/share/java/ext\"
-DGCJ_ENDORSED_DIRS=\"/usr/share/java/gcj-endorsed\"
-DGCJ_VERSIONED_LIBDIR=\"/usr/lib/gcj-4.7.0-13\" -DPATH_SEPARATOR=\":\"
-DECJ_JAR_FILE=\"/usr/share/java/ecj.jar\"
-DLIBGCJ_DEFAULT_DATABASE=\"/usr/lib/gcj-4.7.0-13/classmap.db\"
-DLIBGCJ_DEFAULT_DATABASE_PATH_TAIL=\"gcj-4.7.0-13/classmap.db\"
-fno-omit-frame-pointer -O3 -D_GNU_SOURCE -MT prims.lo -MD -MP -MF
.deps/prims.Tpo -c ../../../gcc-v4.7-20111008.sourcedir/libjava/prims.cc  -fPIC
-DPIC -o .libs/prims.o
In file included from
../../../gcc-v4.7-20111008.sourcedir/libjava/prims.cc:28:0:
../../../gcc-v4.7-20111008.sourcedir/libjava/include/java-interp.h:40:17: fatal
error: ffi.h: No such file or directory
compilation terminated.
make[3]: *** [prims.lo] Error 1

Of course, I do have ffi.h inside /usr/lib/libffi-3.0.10rc9/include/.

Now I believe it's not an 4.7 regression, nor it is bound with -O3, so I'm
closing this bug as RESOLVED INVALID. I hope that I can develop it further and
produce a valid bug report on that issue.

[Bug target/49740] [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740

Douglas Mencken <dougmencken at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED
         Resolution|INVALID                     |WORKSFORME

--- Comment #7 from Douglas Mencken <dougmencken at gmail dot com> 2012-03-23 18:46:48 UTC ---
Currently, it works well. Bug can be closed as WORKSFORME or such.