http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54363
Bug #: 54363
Summary: ICE when compiling malformed struct initializers
Classification: Unclassified
Product: gcc
Version: 4.7.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: kamar...@gmail.com
Created attachment 28076
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28076
preprocessed source code with gcc 4.7.1
This bug is originally reported by Bernhard as
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684635
The following invalid code triggers an ICE with gcc-4.7
$cat t.c
struct bla{char **a;};void test(void){struct bla b = {.a =(char**){"a","b"}};}
$gcc -c t.c
t.c: In function ‘test’:
t.c:1:46: warning: initialization from incompatible pointer type [enabled by
default]
t.c:1:46: warning: (near initialization for ‘(anonymous)’) [enabled by default]
t.c:1:46: warning: excess elements in scalar initializer [enabled by default]
t.c:1:46: warning: (near initialization for ‘(anonymous)’) [enabled by default]
t.c:1:50: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.7/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccS0X8p2.out file, please attach this to
your bugreport.
Attaching the preprocessed source code as ccS0X8p2.out . I am using
$gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i486-linux-gnu/4.7/lto-wrapper
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.7.1-2'
--with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object
--enable-plugin --enable-objc-gc --enable-targets=all --with-arch-32=i586
--with-tune=generic --enable-checking=release --build=i486-linux-gnu
--host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.7.1 (Debian 4.7.1-2)
The same ICE also occurs with gcc version 4.6.2 (Debian 4.6.2-12). But gcc
version 4.4.7 (Debian 4.4.7-1) compiles with a warning.
$gcc-4.4 -c t.c
t.c: In function ‘test’:
t.c:1: warning: initialization from incompatible pointer type
t.c:1: warning: excess elements in scalar initializer
t.c:1: warning: (near initialization for ‘(anonymous)’)
$gcc-4.4 -v
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.7-1'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.4 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-objc-gc --enable-targets=all --with-arch-32=i586 --with-tune=generic
--enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu
--target=i486-linux-gnu
Thread model: posix
gcc version 4.4.7 (Debian 4.4.7-1)
