[Bug regression/34134] New: [4.1, 4.2, 4.3] regression: ICE when using __builtin_stack_restore

["edwintorok at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Using gcc 4.1, 4.2, or 4.3 I get an ICE when compiling testcase-min.i

$ gcc-4.2 testcase-min.i -O1 -c
testcase-min.i: In function ?main?:
testcase-min.i:4: warning: return type of ?main? is not ?int?
testcase-min.i:21: internal compiler error: in lhd_set_decl_assembler_name, at
langhooks.c:165
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.

$ gcc-4.2 -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2
--enable-clocale=gnu --enable-libstdcxx-debug --enable-mpfr
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.2.3 20071014 (prerelease) (Debian 4.2.2-3)

$ gcc-4.1 testcase-min.i -O1 -c
testcase-min.i: In function ?main?:
testcase-min.i:4: warning: return type of ?main? is not ?int?
testcase-min.i:21: internal compiler error: in lhd_set_decl_assembler_name, at
langhooks.c:165
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>.
Preprocessed source stored into /tmp/ccWsoTnK.out file, please attach this to
your bugreport

$ gcc-4.1 -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.1.3 --program-suffix=-4.1
--enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug
--enable-mpfr --enable-checking=release x86_64-linux-gnu
Thread model: posix
gcc version 4.1.3 20070831 (prerelease) (Debian 4.1.2-16)

$ /usr/lib/gcc-snapshot/bin/gcc testcase-min.i -O1 -c
testcase-min.i: In function 'main':
testcase-min.i:4: warning: return type of 'main' is not 'int'
testcase-min.i:21: internal compiler error: tree check: expected tree that
contains 'decl with RTL' structure, have 'nop_expr' in expand_stack_restore, at
stmt.c:1998
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-snapshot/README.Bugs> for instructions.

$ /usr/lib/gcc-snapshot/bin/gcc -v
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 20071116-1'
--with-bugurl=file:///usr/share/doc/gcc-snapshot/README.Bugs
--enable-languages=c,c++,java,fortran,objc,obj-c++,ada,treelang
--prefix=/usr/lib/gcc-snapshot --enable-shared --with-system-zlib --disable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk
--enable-gtk-cairo --disable-plugin --with-java-home=/usr/lib/gcc-snapshot/jre
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-mpfr --disable-werror
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.3.0 20071116 (experimental) [trunk revision 127646] (Debian
20071116-1)

$ uname -a
Linux lightspeed2 2.6.23-rc8-hrt1-cfs-v22-g1bef7dc0-dirty #17 Sun Sep 30
18:49:34 EEST 2007 x86_64 GNU/Linux


-- 
           Summary: [4.1, 4.2, 4.3] regression:  ICE when using
                    __builtin_stack_restore
           Product: gcc
           Version: 4.2.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: regression
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: edwintorok at gmail dot com
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34134