[Bug c++/38560] New: [4.2/4.3/4.4 Regression] -Wall option no longer warns about `class XXX' has virtual functions but non-virtual destructor
from Debian bug : http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=502283
$ cat test.c
class XXX {
virtual void foo() = 0;
};
int main ()
{
}
$ g++-4.1 -Wall test.c
test.c:1: warning: class XXX has virtual functions but non-virtual destructor
starting at g++-4.2, there is no warning anymore
--
Summary: [4.2/4.3/4.4 Regression] -Wall option no longer warns
about `class XXX' has virtual functions but non-virtual
destructor
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: arthur dot loiret at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38560
[Bug target/38706] New: [4.4 regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
Hi! configured with: --host=alpha-linux-gnu --build=alpha-linux-gnu --target=alpha-linux-gnu --enable-languages=c,c++ --with-system-zlib Build fails with this error: /bin/sh ../libtool --tag CXX --mode=compile /home/arthur/build/./gcc/xgcc -shared-libgcc -B/home/arthur/build/./gcc -nostdinc++ -L/home/arthur/build/alpha-linux-gnu/libstdc++-v3/src -L/home/arthur/build/alpha-linux-gnu/libstdc++-v3/src/.libs -B/usr/local/alpha-linux-gnu/bin/ -B/usr/local/alpha-linux-gnu/lib/ -isystem /usr/local/alpha-linux-gnu/include -isystem /usr/local/alpha-linux-gnu/sys-include -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include/alpha-linux-gnu -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include -I/home/arthur/src/libstdc++-v3/libsupc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -g -O2 -D_GNU_SOURCE -mieee -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include/backward -Wno-deprecated -c ../../../../src/libstdc++-v3/src/strstream.cc libtool: compile: /home/arthur/build/./gcc/xgcc -shared-libgcc -B/home/arthur/build/./gcc -nostdinc++ -L/home/arthur/build/alpha-linux-gnu/libstdc++-v3/src -L/home/arthur/build/alpha-linux-gnu/libstdc++-v3/src/.libs -B/usr/local/alpha-linux-gnu/bin/ -B/usr/local/alpha-linux-gnu/lib/ -isystem /usr/local/alpha-linux-gnu/include -isystem /usr/local/alpha-linux-gnu/sys-include -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include/alpha-linux-gnu -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include -I/home/arthur/src/libstdc++-v3/libsupc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -g -O2 -D_GNU_SOURCE -mieee -I/home/arthur/build/alpha-linux-gnu/libstdc++-v3/include/backward -Wno-deprecated -c ../../../../src/libstdc++-v3/src/strstream.cc -fPIC -DPIC -o .libs/strstream.o ../../../../src/libstdc++-v3/src/strstream.cc: In member function 'void std::ostrstream::_ZTv0_n24_NSt10ostrstreamD0Ev()': ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[4]: *** [strstream.lo] Error 1 Thanks. -- Summary: [4.4 regression] ../../../../src/libstdc++- v3/src/strstream.cc:419: internal compiler error: Segmentation fault Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: arthur dot loiret at gmail dot com GCC build triplet: alpha-linux-gnu GCC host triplet: alpha-linux-gnu GCC target triplet: alpha-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #3 from arthur dot loiret at gmail dot com 2009-01-03 19:24 --- I tried again with trunk 143029, still on a clean build directory, and I get the same failure, even with --disable-bootstrap. Hardware is an 21264C (ev68cb), I'll try to make a reduced testcase and to build on an other machine. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #4 from arthur dot loiret at gmail dot com 2009-01-04 03:49 --- Created an attachment (id=17027) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17027&action=view) reduced testcase Here is a first reduced testcase, with it I get: $ ./gcc/cc1plus -quiet /tmp/bug.cc /tmp/bug.cc: In member function 'void std::basic_istream >::_ZTv0_n24_NSiD1Ev()': /tmp/bug.cc:97: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. (gdb) run -quiet /tmp/bug.cc Starting program: /home/arthur/build/gcc/cc1plus -quiet /tmp/bug.cc Program received signal SIGSEGV, Segmentation fault. alpha_end_function (file=0x120b962c0, fnname=0x2c74e80 "_ZTv0_n24_NSiD1Ev", decl=) at ../../src/gcc/config/alpha/alpha.c:8270 8270 if (!INSN_P (insn)) (gdb) bt #0 alpha_end_function (file=0x120b962c0, fnname=0x2c74e80 "_ZTv0_n24_NSiD1Ev", decl=) at ../../src/gcc/config/alpha/alpha.c:8270 #1 0x0001207ba400 in assemble_end_function (decl=0x2c67a00, fnname=0x2c74e80 "_ZTv0_n24_NSiD1Ev") at ../../src/gcc/varasm.c:1775 #2 0x000120155584 in use_thunk (thunk_fndecl=0x2c67a00, emit_p=) at ../../src/gcc/cp/method.c:445 #3 0x000120162990 in emit_associated_thunks (fn=) at ../../src/gcc/cp/semantics.c:3144 #4 0x0001207e4fdc in cgraph_expand_function (node=0x2c8c800) at ../../src/gcc/cgraphunit.c:1046 #5 0x0001207e5338 in cgraph_output_in_order () at ../../src/gcc/cgraphunit.c:1195 #6 0x0001207e7d60 in cgraph_optimize () at ../../src/gcc/cgraphunit.c:1306 #7 0x0001200d57e4 in cp_write_global_declarations () at ../../src/gcc/cp/decl2.c:3630 #8 0x00012059d61c in toplev_main (argc=, argv=) at ../../src/gcc/toplev.c:981 #9 0x00012022b8e8 in main (argc=549020352, argv=0x2c74e80) at ../../src/gcc/main.c:35 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #5 from arthur dot loiret at gmail dot com 2009-01-04 04:16 --- Created an attachment (id=17028) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17028&action=view) more reduced testcase -- arthur dot loiret at gmail dot com changed: What|Removed |Added Attachment #17027|0 |1 is obsolete|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 Regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #6 from arthur dot loiret at gmail dot com 2009-01-07 06:55 --- Current trunk bootstraps fine on an other machine, but the testcase fails too on it. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 Regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #9 from arthur dot loiret at gmail dot com 2009-01-07 13:05 --- (In reply to comment #8) > Created an attachment (id=17045) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17045&action=view) [edit] > Patch to fix the failure > > We should not free cfun since it is needed in alpha_end_function. > > Arthur, can you perhaps bootstrap/regression test the patch? > Sure, build started. Thanks for the patch! -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38706] [4.4 Regression] ../../../../src/libstdc++-v3/src/strstream.cc:419: internal compiler error: Segmentation fault
--- Comment #10 from arthur dot loiret at gmail dot com 2009-01-07 21:04 --- Your patch fixes the build and brings no regression in testsuite. -- arthur dot loiret at gmail dot com changed: What|Removed |Added CC||debian-gcc at lists dot ||debian dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38706
[Bug target/38326] [4.3/4.4 regression] libjava build failure on ia64-linux-gnu
--- Comment #8 from arthur dot loiret at gmail dot com 2009-01-09 09:15 --- I can reproduce it on Debian unstable. The problem is in Debian's fastjar on ia64: (cd classes; \ /usr/bin/fastjar cf ../tools.zip `find . -name .svn -prune -o -type f -print`; \ cd ..) /bin/sh: line 2: 7749 Segmentation fault /usr/bin/fastjar cf ../tools.zip `find . -name .svn -prune -o -type f -print` (cd asm; \ /usr/bin/fastjar uf ../tools.zip `find . -name .svn -prune -o -type f -print`; \ cd ..) /usr/bin/fastjar: ../tools.zip: can't seek file This results an empty tools.zip and causes the ICE. fastjar is currently compiled with -O2, with it compiled with -O0 the build successes. Matthias, does a simple "fastjar cf a.zip" segfaults for you ? -- arthur dot loiret at gmail dot com changed: What|Removed |Added CC| |arthur dot loiret at gmail | |dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38326
[Bug middle-end/40157] New: [4.4 Regression] ICE with -floop-block
Hi,
With this simple testcase:
int buffer[256*256];
int main(void)
{
int *dest = buffer;
int x, y;
for(x = 0; x < 256; x++)
for(y = 0; y < 256; y++)
*dest++ = 0;
return 0;
}
We get an ICE:
% gcc-4.4 -O1 -floop-block foo.c -o foo
foo.c: In function main:
foo.c:2: internal compiler error: in expand_scalar_variables_expr, at
graphite.c:4295
Please submit a full bug report,
with preprocessed source if appropriate.
See for instructions.
Thanks.
--
Summary: [4.4 Regression] ICE with -floop-block
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: arthur dot loiret 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=40157
[Bug debug/39814] New: GCC does not emit debug info for a called function
The following program:
#include
#include
int main() {
printf("asin(1.0) = %f\n", asin(1.0));
return 0;
}
prints correctly 1.570796, but "p asin(1.0)" from within gdb prints 0. However,
this work fine:
(gdb) p ((double (*)(double))asin) (1.0)
$4 = 1.5707963267948966
Or, with libc debug symbols installed:
(gdb) p __asin (1.0)
$5 = 1.5707963267948966
The explanation from Daniel Jacobowitz is:
The C library does not contain debug info for a function named 'asin',
because the implementation is __asin, so GDB does not know it returns
a double. Also, GCC does not emit debug info for the called function
- I don't know why it doesn't, but probably to save space.
--
Summary: GCC does not emit debug info for a called function
Product: gcc
Version: 4.3.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: arthur dot loiret at gmail dot com
GCC build triplet: i486-linux-gnu
GCC host triplet: i486-linux-gnu
GCC target triplet: i486-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39814
[Bug driver/42485] New: [4.4 regression] -V switch broken
Starting at GCC 4.4.0, the -V switch doesn't work: $ gcc-4.1 -V4.3 -dumpversion 4.3.4 $ gcc-4.4 -V4.3 -dumpversion $ -- Summary: [4.4 regression] -V switch broken Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: driver AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: arthur dot loiret at gmail dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42485
