[Bug c/20961] New: ICE on pragma weak/__attribute__((weak))
The following program fails on x86_64-unknown-linux-gnu
but succeedes on x86-unknown-linux-gnu with the prerelease.
> /dept/rnd/vendor/gcc-4.0.0pre1-amd64/bin/gcc -c bug.C
gcc: Internal error: Segmentation fault (program cc1plus)
Please submit a full bug report.
See http://gcc.gnu.org/bugs.html> for instructions.
bug.C
int foo();
#pragma weak foo
__attribute__((weak)) int foo() { return 0; }
> /dept/rnd/vendor/gcc-4.0.0pre1-amd64/bin/gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.0.0-20050410/configure --enable-languages=c,c++
--prefix=/dept/rnd/vendor/gcc-4.0.0-20050410-amd64 --enable-threads
Thread model: posix
gcc version 4.0.0 20050410 (prerelease)
--
Summary: ICE on pragma weak/__attribute__((weak))
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nick at ilm dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20961
[Bug c/20961] ICE on pragma weak/__attribute__((weak))
--- Additional Comments From nick at ilm dot com 2005-04-12 02:37 --- I meant to say that it succedes with i686-pc-linux-gnu not x86-unknown-linux-gnu > /dept/rnd/vendor/gcc-4.0.0-20050410/bin/gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../gcc-4.0.0-20050410/configure --enable-languages=c,c++ --prefix=/dept/rnd/vendor/gcc-4.0.0-20050410 --enable-threads Thread model: posix gcc version 4.0.0 20050410 (prerelease) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20961
[Bug c++/20961] ICE on pragma weak/__attribute__((weak))
--- Additional Comments From nick at ilm dot com 2005-04-12 02:42 --- mislabeled as c - should be c++ compiling as c on x86_64-unknown-linux-gnu succedes compiling as c++ on x86_64-unknown-linux-gnu fails compiling as c on i686-pc-linux-gnu succedes compiling as c++ on i686-pc-linux-gnu succedes -- What|Removed |Added Component|c |c++ http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20961
[Bug c++/21012] New: [4.0 regression] incorrect name lookup from nested struct
> /dept/rnd/vendor/gcc-4.0.0pre1-amd64/bin/g++ -c bug.C -o /dev/null
bug.C: In member function 'int B::Foo::foo()':
bug.C:9: error: 'int B::Foo::Bar::v' is protected
bug.C:12: error: within this context
> /dept/rnd/vendor/gcc-4.0.0pre1-amd64/bin/g++ -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.0.0-20050410/configure --enable-languages=c,c++
--prefix=/dept/rnd/vendor/gcc-4.0.0-20050410-amd64 --enable-threads
Thread model: posix
gcc version 4.0.0 20050410 (prerelease)
> cat bug.C
namespace A { struct Foo {}; }
namespace B {
struct Foo : public A::Foo
{
public:
struct Bar {
friend struct Foo;
protected:
int v;
};
Bar bar;
int foo () { return bar.v; }
};
}
I believe that friend struct Foo should refer to B::Foo
but it seems to instead refer to A::Foo. This code compiles
correctly on gcc-3.4.1.
--
Summary: [4.0 regression] incorrect name lookup from nested
struct
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nick at ilm dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21012
[Bug c++/21012] [4.0 regression] incorrect name lookup from nested struct
-- What|Removed |Added Keywords||rejects-valid http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21012
[Bug rtl-optimization/14868] ICE with -msse2 -mfpmath=sse -fnon-call-exceptions
--- Additional Comments From nick at ilm dot com 2005-04-14 02:15 --- testcase compiles successfuly with gcc-4.0.0-20050410 on x68 and amd64, removed 4.0.0 from known to fail line. -- What|Removed |Added Known to fail|3.2.3 3.2.2 3.3.3 4.0.0 |3.2.3 3.2.2 3.3.3 3.3.1 |3.3.1 3.4.0 |3.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14868
[Bug rtl-optimization/21169] New: [4.0 regression] ICE in reload_cse_simplify_operands with -fnon-call-exceptions -fPIC -O2
The following code compiles successfully under gcc-3.4.3 on amd64:
> cat bug.C
float foo();
int _numTransitions;
int _offset;
void
bar(int &base)
{
float tmp = foo();
tmp -= (float)_offset;
if (tmp < 0.0) tmp = 0.0;
if (tmp > (float)(_numTransitions-1))
tmp = (float)(_numTransitions-1);
base = (int) tmp;
}
> /dept/rnd/vendor/gcc-4.0.0-amd64/bin/g++ -fnon-call-exceptions -fPIC -O2 -c
bug.C -o /dev/null
bug.C: In function 'void bar(int&)':
bug.C:15: error: insn does not satisfy its constraints:
(insn 67 35 36 0 (set (reg:SF 24 xmm3)
(lt:SF (reg/v:SF 22 xmm1 [orig:60 tmp ] [60])
(reg:SF 23 xmm2 [65]))) 487 {*sse_setccsf} (nil)
(nil))
bug.C:15: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:391
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html> for instructions.
> /dept/rnd/vendor/gcc-4.0.0-amd64/bin/g++ -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.0.0/configure
--prefix=/dept/rnd/vendor/gcc-4.0.0-amd64 --enable-threads
--enable-languages=c,c++
Thread model: posix
gcc version 4.0.0
--
Summary: [4.0 regression] ICE in reload_cse_simplify_operands
with -fnon-call-exceptions -fPIC -O2
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nick at ilm dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21169
[Bug c++/19731] New: arguments incorrectly named in static member specialization
It looks like in the specialization of a static template member of a template
class, the argument names are used from the original declaration, rather than
from the specialization declaration.
template
struct W {
template static S getAsS(const T &v_orig);
};
template <>
template
inline S W::getAsS(const float &v_spec)
{
return S(v_spec);
}
the above code compiles on 3.3, but does not compile under 3.4.2 and 3.4.3:
foo.C: In static member function `static S W::getAsS(const T&) [with S = S, T
= float]':
foo.C:10: error: `v_spec' undeclared (first use this function)
foo.C:10: error: (Each undeclared identifier is reported only once for each
function it appears in.)
if you change the second to last line to:
return S(v_orig);
(using the variable name from the original declaration) the code erroneously
compiles under 3.4.1, 3.4.2, even if the function gets instantiated.
-nick
--
Summary: arguments incorrectly named in static member
specialization
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nick at ilm 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=19731
[Bug c++/19731] arguments incorrectly named in static member specialization
-- What|Removed |Added Keywords||accepts-invalid, rejects- ||valid http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19731
[Bug c++/19744] New: ICE in if_convert with -fnon-call-exceptions -O2 on amd64
I'm running into an ICE on amd64
> /dept/rnd/vendor/gcc-3.4.3-amd64/bin/g++ -fnon-call-exceptions -O2 -g -c
> test.C
test.C: In member function `void M::foo() const':
test.C:19: 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.
it's also reproducable on x86 with -msse
> /dept/rnd/vendor/gcc-3.4.3/bin/g++ -msse -fnon-call-exceptions -O2 -g -c
> test.C
test.C: In member function `void M::foo() const':
test.C:19: 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.
on the flollowing the following code:
struct E {};
class M
{
public:
float x[4][4];
voidfoo () const throw (E);
};
void
M::foo () const throw (E)
{
for (int i = 0; i < 3 ; i++) {
float p = x[i][i];
if (p < 0) p = -p;
}
return;
}
--
here's the stacktrace. with -fno-if-conversion
(gdb) where
#0 find_if_header (test_bb=0xa49488, pass=1) at
../../gcc-3.4.3/gcc/ifcvt.c:1641
#1 0x00708661 in if_convert (x_life_data_ok=Variable "x_life_data_ok"
is not available.
) at ../../gcc-3.4.3/gcc/ifcvt.c:3251
#2 0x00697968 in rest_of_compilation (decl=0x2a959cb1a0) at
../../gcc-3.4.3/gcc/toplev.c:2443
#3 0x006d1f4c in tree_rest_of_compilation (fndecl=0x2a959cb1a0,
nested_p=false) at ../../gcc-3.4.3/gcc/tree-optimize.c:168
#4 0x0046e881 in expand_body (fn=0x2a959cb1a0) at
../../gcc-3.4.3/gcc/cp/semantics.c:2920
#5 0x006d39cf in cgraph_expand_function (node=0x2a959d1700) at
../../gcc-3.4.3/gcc/cgraphunit.c:538
#6 0x006d4131 in cgraph_optimize () at
../../gcc-3.4.3/gcc/cgraphunit.c:1542
#7 0x00441885 in finish_file () at ../../gcc-3.4.3/gcc/cp/decl2.c:2856
#8 0x00694e43 in toplev_main (argc=Variable "argc" is not available.
) at ../../gcc-3.4.3/gcc/toplev.c:1822
#9 0x002a95688e5d in __libc_start_main () from /lib64/tls/libc.so.6
#10 0x004025aa in _start () at ../sysdeps/x86_64/elf/start.S:96
--
Summary: ICE in if_convert with -fnon-call-exceptions -O2 on
amd64
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nick at ilm dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19744
[Bug c++/19744] ICE in if_convert with -fnon-call-exceptions -O2 on amd64
-- What|Removed |Added Keywords||ice-on-valid-code http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19744
