Package: gcc-6
Version: 6.3.0-5
Severity: normal
Tags: upstream
Dear Maintainer,
* What led up to the situation?
I tried to compile Mozilla's thunderbird (from comm-central)
repository using gcc-6.
Then compiler (gcc-6) experienced an ICE.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Removing -gsplit-dwarf seems to avoid ICE, but this is a
non-solution for my needs.
* What was the outcome of this action?
gcc-6 experienced an ICE.
* What outcome did you expect instead?
gcc-6 ought to compile the file without ICE.
I reported the bug to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70578
since it seems to address the same issue although the line number
reported seems to be a little different (maybe GCC version
difference).
The following is the report I filed to the above upstream bugzilla:
--- begin quote
Created attachment 40633 [details]
preprocessed file that triggers the ICE.
I have also seen this bug with gcc version 6.3.0 20170124 (Debian 6.3.0-5)
I am attaching a preprocessed file uvectr64.ii
gcc version (distributed under Debian GNU/Linux)
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-5'
--with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared
--enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie
--with-system-zlib --disable-browser-plugin --enable-java-awt=gtk
--enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre
--enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--with-target-system-zlib --enable-objc-gc=auto --enable-multiarch
--with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32
--enable-multilib --with-tune=generic --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 6.3.0 20170124 (Debian 6.3.0-5)
ishikawa@debian-vbox-ci:/tmp$
I encountered a bug during a compilation of mozilla thunderbird. I used the
following command to compile the attached .ii file, and I got the following ICE.
COMMAND LINE:
/usr/bin/g++-6 -std=gnu++11 -o uvectr64.o -c -gsplit-dwarf \
-DNDEBUG=1 -DTRIMMED=1 -DU_COMMON_IMPLEMENTATION -DLOCALE_SNAME=92 \
-DUCONFIG_NO_BREAK_ITERATION -DUCONFIG_NO_TRANSLITERATION \
-DUCONFIG_NO_REGULAR_EXPRESSIONS -DUCONFIG_NO_LEGACY_CONVERSION \
-DU_USING_ICU_NAMESPACE=0 -DU_NO_DEFAULT_INCLUDE_UTF_HEADERS=1 \
-DU_CHARSET_IS_UTF8 -MD -MP -MF -Wall -Wc++11-compat \
-fno-builtin-strlen -Wl,--gdb-index -Dfdatasync=fdatasync \
-DDEBUG_4GB_CHECK -DUSEHELGRIND=1 -fno-exceptions \
-fno-strict-aliasing -fno-rtti -fno-exceptions -fno-math-errno \
-pthread -g3 -Og -freorder-blocks \
-fno-omit-frame-pointer -frtti -fdiagnostics-color \
./uvectr64.ii
ICE error:
new-hd1/extra/ishikawa/TB-3HG/NEW-COMMSRC/mozilla/intl/icu/source/common/uvectr64.cpp:213:3:
internal compiler error: in output_index_string, at dwarf2out.c:25635
U_NAMESPACE_END
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.
However, if I remove "-gsplit-dwarf" from my command line, it seems to compile.
TIA
--- end quote
*** End of the template - remove these template lines ***
-- System Information:
Debian Release: 9.0
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.7.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=ja_JP.UTF-8, LC_CTYPE=ja_JP.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gcc-6 depends on:
ii binutils 2.27.90.20170124-2
ii cpp-6 6.3.0-5
ii gcc-6-base 6.3.0-5
ii libc6 2.24-8
ii libcc1-0 6.3.0-5
ii libgcc-6-dev 6.3.0-5
ii libgcc1 1:6.3.0-5
ii libgmp10 2:6.1.2+dfsg-1
ii libisl15 0.18-1
ii libmpc3 1.0.3-1
ii libmpfr4 3.1.5-1
ii libstdc++6 6.3.0-5
ii zlib1g 1:1.2.8.dfsg-4
Versions of packages gcc-6 recommends:
ii libc6-dev 2.24-8
Versions of packages gcc-6 suggests:
pn gcc-6-doc <none>
pn gcc-6-locales <none>
ii gcc-6-multilib 6.3.0-5
pn libasan3-dbg <none>
pn libatomic1-dbg <none>
pn libcilkrts5-dbg <none>
pn libgcc1-dbg <none>
pn libgomp1-dbg <none>
pn libitm1-dbg <none>
pn liblsan0-dbg <none>
pn libmpx2-dbg <none>
pn libquadmath0-dbg <none>
pn libtsan0-dbg <none>
pn libubsan0-dbg <none>
-- no debconf information
