The invalid code below results in "internal compiler error: Segmentation fault"
with a checking version of GCC 4.0.1. Does not happen with GCC 3.3.4 or Apple
GCC 4.0.0.
Like the code for bug 22603, this is a greatly-reduced and anonymized excerpt,
found by Daniel
Wilkerson's Delta, from a real PalmSource file. (This reduction was found by
looking for a segfault; the
previous reduction looked for any compiler error.)
I don't think this is the same bug as my 22508, since that one also
happened with Apple GCC 4.0.0.
It doesn't sound to me like 21975 or 22441 either.
class NameOne;
class NameTwo : virtual public SAtom
{
virtual NameOne* NameThree();
};
class NameFour : virtual public NameFive
{
class NameOne : public NameTwo
{
virtual NameOne* NameThree();
======
Session:
125> /opt/gcc401chk/bin/g++ -v
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/
BBinder_segfault.ii
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --enable-checking --prefix=/opt/gcc401chk
--enable-languages=c,c+
+
Thread model: posix
gcc version 4.0.1
/opt/gcc401chk/libexec/gcc/i686-pc-linux-gnu/4.0.1/cc1plus -fpreprocessed
/Projects/
PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii -quiet
-dumpbase
BBinder_segfault.ii -mtune=pentiumpro -auxbase BBinder_segfault -version -o
/tmp/ccuEkHiJ.s
GNU C++ version 4.0.1 (i686-pc-linux-gnu)
compiled by GNU C version 3.3.4 (pre 3.3.5 20040809).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:3:
error: expected
class-name before { token
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:7:
error: expected
class-name before { token
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:10:
error:
expected `}' at end of input
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:10:
error: invalid
covariant return type for virtual NameFour::NameOne*
NameFour::NameOne::NameThree()
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:4:
error:
overriding virtual NameOne* NameTwo::NameThree()
/Projects/PlatformTools/compilerChain/tests/cpp/bugfiles/error/BBinder_segfault.ii:9:
internal
compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
Like bug 22603, this is tracked by PalmSouce bug 104911, though I suspect it's
different.
--
Summary: "internal compiler error: Segmentation fault" with
invalid nested classes
Product: gcc
Version: 4.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: flash at pobox dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22604
