search for: _s_construct

...is area. Here's my guess: We're not properly suppressing the implicit instantiation of non-inline member functions defined out-of-line. Thus, we're instantiating that basic_string constructor when we shouldn't be. That instantiation then forces the implicit instantiation of _S_construct<const char*>. Since _S_construct is a member template, it's instantiation is *not* suppressed (despite being in basic_string<char>), so we emit it as a weak definition. I don't have a debug llvm-gcc available to see why this might be happening. The logic to suppress insta...

...my guess: We're not properly suppressing the implicit > instantiation of non-inline member functions defined out-of-line. > Thus, we're instantiating that basic_string constructor when we > shouldn't be. That instantiation then forces the implicit > instantiation of _S_construct<const char*>. Since _S_construct is a > member template, it's instantiation is *not* suppressed (despite being > in basic_string<char>), so we emit it as a weak definition. > > I don't have a debug llvm-gcc available to see why this might be > happening. Th...

...ymbols to appear in C++ code when it shouldn't. Take this code for example, #include <stdexcept> void dummysymbol() { throw(std::runtime_error("string")); } The c'tor for std::string is emitted as code from llvm-gcc. It is then inlined. And a weak external for the `_S_construct' variable is created. However, C++ rules stipulate that it shouldn't be, because of explicit & implicit template instantiation rules that Doug knows about but which makes my head spin. I'm going to need to revert at least some of these changes. Could you take a look at this...

...ng *source* package 'portfolio.construction' ... ** R ** preparing package for lazy loading Loading required package: fts Loading required package: quadprog Loading required package: Rexcelpoi terminate called after throwing an instance of 'std::logic_error' what(): basic_string::_S_construct NULL not valid /usr/local/lib64/R/bin/INSTALL: line 455: 25001 Done ( echo "options(warn=1); invisible(.libPaths(c(\"${lib}\", .libPaths()))); .getRequiredPackages(); tools:::makeLazyLoading(\"${R_PACKAGE_NAME}\", \"${lib}\")" ) 25002 Aborted...

...>> this code for example, >> #include <stdexcept> >> void dummysymbol() { >> throw(std::runtime_error("string")); >> } >> The c'tor for std::string is emitted as code from llvm-gcc. It is >> then inlined. And a weak external for the `_S_construct' variable >> is created. However, C++ rules stipulate that it shouldn't be, >> because of explicit & implicit template instantiation rules that >> Doug knows about but which makes my head spin. > > I can't reproduce this on x86-64 linux (but maybe I mis...

...dc++.so.6 0x00002b05a7f53a5e 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 10 libstdc++.so.6 0x00002b05a7f36e6d std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) + 93 11 libstdc++.so.6 0x00002b05a7f38905 char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) + 53 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, unsigned long, std::allocator...

...9;t. Take this > code for example, > > #include <stdexcept> > > void dummysymbol() { > throw(std::runtime_error("string")); > } > > The c'tor for std::string is emitted as code from llvm-gcc. It is then > inlined. And a weak external for the `_S_construct' variable is created. > However, C++ rules stipulate that it shouldn't be, because of explicit & > implicit template instantiation rules that Doug knows about but which > makes my head spin. I can't reproduce this on x86-64 linux (but maybe I misunderstood what the prob...

I have ran under valgrind memcheck the process using libLLVM-2.9.so (rev.126022) and got several errors: ==24227== Invalid read of size 1 ==24227== at 0x40274C9: memcpy (mc_replace_strmem.c:497) ==24227== by 0x40D5B84: char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) (in /usr/lib/libstdc++.so.6.0.14) ==24227== by 0x40D5C50: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, uns...

Hi Bill, > Here's what I get with TOT compiling with -Os. The orig.ll is what I get > before r72619. Notice that orig.ll has only one function in it. Both the > one you sent and duncan.ll have more than one function. It's not the > fact that more than one function is showing up, but these functions in > particular shouldn't be there because of the implicit/explicit

...; 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 > 10 libstdc++.so.6 0x00002b05a7f36e6d > std::string::_Rep::_S_create(unsigned long, unsigned long, > std::allocator<char> const&) + 93 > 11 libstdc++.so.6 0x00002b05a7f38905 char* > std::string::_S_construct<char const*>(char const*, char const*, > std::allocator<char> const&, std::forward_iterator_tag) + 53 > 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, > std::char_traits<char>, std::allocator<char> >::basic_string(char > const*, unsign...

...s: We're not properly suppressing the implicit >> instantiation of non-inline member functions defined out-of-line. >> Thus, we're instantiating that basic_string constructor when we >> shouldn't be. That instantiation then forces the implicit >> instantiation of _S_construct<const char*>. Since _S_construct is a >> member template, it's instantiation is *not* suppressed (despite >> being >> in basic_string<char>), so we emit it as a weak definition. >> >> I don't have a debug llvm-gcc available to see why this might b...

....6 0x00002b05a7f53e6d operator new(unsigned long) + 125 >> 10 libstdc++.so.6 0x00002b05a7f36e6d >> std::string::_Rep::_S_create(unsigned long, unsigned long, >> std::allocator<char> const&) + 93 >> 11 libstdc++.so.6 0x00002b05a7f38905 char* >> std::string::_S_construct<char const*>(char const*, char const*, >> std::allocator<char> const&, std::forward_iterator_tag) + 53 >> 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, >> std::char_traits<char>, std::allocator<char> >::basic_string(char const*, &g...

...dc++.so.6 0x00002b05a7f53a5e 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 10 libstdc++.so.6 0x00002b05a7f36e6d std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) + 93 11 libstdc++.so.6 0x00002b05a7f38905 char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) + 53 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, unsigned long, std::allocator...

...3a5e > 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 > 10 libstdc++.so.6 0x00002b05a7f36e6d > std::string::_Rep::_S_create(unsigned long, unsigned long, > std::allocator<char> const&) + 93 > 11 libstdc++.so.6 0x00002b05a7f38905 char* std::string::_S_construct<char > const*>(char const*, char const*, std::allocator<char> const&, > std::forward_iterator_tag) + 53 > 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, > std::char_traits<char>, std::allocator<char> >::basic_string(char const*, > unsi...

...dc++.so.6 0x00002b05a7f53a5e 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 10 libstdc++.so.6 0x00002b05a7f36e6d std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) + 93 11 libstdc++.so.6 0x00002b05a7f38905 char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) + 53 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, unsigned long, std::allocator...

...mentation fault. [Switching to Thread 0xb7531910 (LWP 22213)] 0xb7798cec in memcpy () from /lib/libc.so.6 (gdb) bt #0 0xb7798cec in memcpy () from /lib/libc.so.6 #1 0xb76d2942 in std::string::_S_copy_chars () from /usr/lib/gcc/i686-pc-linux-gnu/4.1.2/libstdc++.so.6 #2 0xb7302315 in std::string::_S_construct<char const*> (__beg=0x9fe020c "!I4\thC6\tH#6\nçÃ6\npÆF·+", __end=0x13344334 <Address 0x13344334 out of bounds>, __a=@0xbf856e3f) at /usr/lib/gcc/i686-pc-linux-gnu/4.1.2/include/g++-v4/bits/basic_string.tcc:152 #3 0xb7302361 in std::string::_S_construct_aux<char cons...

...3a5e > 9 libstdc++.so.6 0x00002b05a7f53e6d operator new(unsigned long) + 125 > 10 libstdc++.so.6 0x00002b05a7f36e6d > std::string::_Rep::_S_create(unsigned long, unsigned long, > std::allocator<char> const&) + 93 > 11 libstdc++.so.6 0x00002b05a7f38905 char* std::string::_S_construct<char > const*>(char const*, char const*, std::allocator<char> const&, > std::forward_iterator_tag) + 53 > 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, > std::char_traits<char>, std::allocator<char> >::basic_string(char const*, > unsi...

...6d operator new(unsigned long) + 125 >>> 10 libstdc++.so.6 0x00002b05a7f36e6d >>> std::string::_Rep::_S_create(unsigned long, unsigned long, >>> std::allocator<char> const&) + 93 >>> 11 libstdc++.so.6 0x00002b05a7f38905 char* >>> std::string::_S_construct<char const*>(char const*, char const*, >>> std::allocator<char> const&, std::forward_iterator_tag) + 53 >>> 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, >>> std::char_traits<char>, std::allocator<char> >::basic_string(cha...

...gned long) + 125 >>>> 10 libstdc++.so.6 0x00002b05a7f36e6d >>>> std::string::_Rep::_S_create(unsigned long, unsigned long, >>>> std::allocator<char> const&) + 93 >>>> 11 libstdc++.so.6 0x00002b05a7f38905 char* >>>> std::string::_S_construct<char const*>(char const*, char const*, >>>> std::allocator<char> const&, std::forward_iterator_tag) + 53 >>>> 12 libstdc++.so.6 0x00002b05a7f389ca std::basic_string<char, >>>> std::char_traits<char>, std::allocator<char> >::basi...

...tor new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==5926== by 0x5A71708: std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==5926== by 0x5A730E4: char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.17) ==5926== by 0x5A731FC: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char con...