[LLVMdev] hello.bc & binary code
yue
qiangyue at ict.ac.cn
Mon Dec 22 01:16:01 PST 2003
hi,
I try to build hello.cpp using both llvmg++ and GNU g++,
the generate llvm bytecode's size is about 960K,
and the size of binary code generated by g++ is only 13K.
Could anyone explain the difference between the two result?
BWT:
I rebuild the cfrontend in RH linux9.0, but when I build the hello.cpp
the llvmG++ reports warnings too, it shows:
-----------------------------
[yue at RH9 Shootout-C++]$ llvmg++ -v hello.cpp -o hello
Reading specs from
/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/specs
Configured with: '../src/configure'
'--prefix=/home/yue/cfrontend/install '--disable-threads '--disable-nls
'--disable-shared '--enable-languages=c,c++ : (reconfigured)
'../src/configure' '--prefix=/home/yue/cfrontend/install
'--disable-threads '--disable-nls '--disable-shared
'--enable-languages=c,c++
Thread model: single
gcc version 3.4-llvm 20030827 (experimental)
/home/yue/cfrontend/install/libexec/gcc/i686-pc-linux-gnu/3.4-llvm/cc1plus
-quiet -v -D_GNU_SOURCE hello.cpp -quiet -dumpbase hello.cpp
-mtune=pentiumpro -auxbase hello -version -o /tmp/ccb5CDSP.s
ignoring nonexistent directory
"/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/../../../../include/c++/3.4-llvm
/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/../../../../include/c++/3.4-llvm/i686-pc-linux-gnu
/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/../../../../include/c++/3.4-llvm/backward
/usr/local/include
/home/yue/cfrontend/install/include
/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/include
/usr/include
End of search list.
GNU C++ version 3.4-llvm 20030827 (experimental) (i686-pc-linux-gnu)
compiled by GNU C version 3.2.2 20030222 (Red Hat Linux 3.2.2-5).
GGC heuristics: --param ggc-min-expand=55 --param ggc-min-heapsize=48067
gccas -o /tmp/ccppFGsT.o /tmp/ccb5CDSP.s
gccld -o hello
-L/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm
-L/home/yue/cfrontend/install/lib/gcc/i686-pc-linux-gnu/3.4-llvm/../../..
/tmp/ccppFGsT.o -lstdc++ -lm -lc -lcrtend
WARNING: Found global types that are not compatible:
[16 x sbyte]* %_ZN9__gnu_cxx10messages_cE
"struct.std::messages<char>"* %_ZN9__gnu_cxx10messages_cE
WARNING: Found global types that are not compatible:
[16 x sbyte]* %_ZN9__gnu_cxx10messages_wE
"struct.std::messages<char>"* %_ZN9__gnu_cxx10messages_wE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx10numpunct_cE
"struct.std::numpunct<char>"* %_ZN9__gnu_cxx10numpunct_cE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx10numpunct_wE
"struct.std::numpunct<wchar_t>"* %_ZN9__gnu_cxx10numpunct_wE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx10time_get_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx10time_get_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx10time_get_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx10time_get_wE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx10time_put_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx10time_put_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx10time_put_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx10time_put_wE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx11money_get_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx11money_get_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx11money_get_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx11money_get_wE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx11money_put_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx11money_put_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx11money_put_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx11money_put_wE
WARNING: Found global types that are not compatible:
[20 x sbyte]* %_ZN9__gnu_cxx11timepunct_cE
"struct.std::__timepunct<char>"* %_ZN9__gnu_cxx11timepunct_cE
WARNING: Found global types that are not compatible:
[20 x sbyte]* %_ZN9__gnu_cxx11timepunct_wE
"struct.std::__timepunct<wchar_t>"* %_ZN9__gnu_cxx11timepunct_wE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx12buf_cin_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<char,std::char_traits<char> >"*
%_ZN9__gnu_cxx12buf_cin_syncE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx13buf_cerr_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<char,std::char_traits<char> >"*
%_ZN9__gnu_cxx13buf_cerr_syncE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx13buf_cout_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<char,std::char_traits<char> >"*
%_ZN9__gnu_cxx13buf_cout_syncE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx13buf_wcin_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<wchar_t,std::char_traits<wchar_t>
>"* %_ZN9__gnu_cxx13buf_wcin_syncE
WARNING: Found global types that are not compatible:
[20 x sbyte]* %_ZN9__gnu_cxx13c_locale_implE
"struct.std::locale::_Impl"* %_ZN9__gnu_cxx13c_locale_implE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx13moneypunct_cfE
"struct.std::moneypunct<char, false>"*
%_ZN9__gnu_cxx13moneypunct_cfE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx13moneypunct_ctE
"struct.std::moneypunct<char, false>"*
%_ZN9__gnu_cxx13moneypunct_ctE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx13moneypunct_wfE
"struct.std::moneypunct<wchar_t, false>"*
%_ZN9__gnu_cxx13moneypunct_wfE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx13moneypunct_wtE
"struct.std::moneypunct<wchar_t, false>"*
%_ZN9__gnu_cxx13moneypunct_wtE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx14buf_wcerr_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<wchar_t,std::char_traits<wchar_t>
>"* %_ZN9__gnu_cxx14buf_wcerr_syncE
WARNING: Found global types that are not compatible:
[36 x sbyte]* %_ZN9__gnu_cxx14buf_wcout_syncE
"struct.__gnu_cxx::stdio_sync_filebuf<wchar_t,std::char_traits<wchar_t>
>"* %_ZN9__gnu_cxx14buf_wcout_syncE
WARNING: Found global types that are not compatible:
[92 x sbyte]* %_ZN9__gnu_cxx16numpunct_cache_cE
"struct.std::__numpunct_cache<char>"*
%_ZN9__gnu_cxx16numpunct_cache_cE
WARNING: Found global types that are not compatible:
[292 x sbyte]* %_ZN9__gnu_cxx16numpunct_cache_wE
"struct.std::__numpunct_cache<wchar_t>"*
%_ZN9__gnu_cxx16numpunct_cache_wE
WARNING: Found global types that are not compatible:
[200 x sbyte]* %_ZN9__gnu_cxx17timepunct_cache_cE
"struct.std::__timepunct_cache<char>"*
%_ZN9__gnu_cxx17timepunct_cache_cE
WARNING: Found global types that are not compatible:
[200 x sbyte]* %_ZN9__gnu_cxx17timepunct_cache_wE
"struct.std::__timepunct_cache<wchar_t>"*
%_ZN9__gnu_cxx17timepunct_cache_wE
WARNING: Found global types that are not compatible:
[44 x sbyte]* %_ZN9__gnu_cxx19moneypunct_cache_cfE
"struct.std::__moneypunct_cache<char>"*
%_ZN9__gnu_cxx19moneypunct_cache_cfE
WARNING: Found global types that are not compatible:
[44 x sbyte]* %_ZN9__gnu_cxx19moneypunct_cache_ctE
"struct.std::__moneypunct_cache<char>"*
%_ZN9__gnu_cxx19moneypunct_cache_ctE
WARNING: Found global types that are not compatible:
[52 x sbyte]* %_ZN9__gnu_cxx19moneypunct_cache_wfE
"struct.std::__moneypunct_cache<wchar_t>"*
%_ZN9__gnu_cxx19moneypunct_cache_wfE
WARNING: Found global types that are not compatible:
[52 x sbyte]* %_ZN9__gnu_cxx19moneypunct_cache_wtE
"struct.std::__moneypunct_cache<wchar_t>"*
%_ZN9__gnu_cxx19moneypunct_cache_wtE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx7buf_cinE
"struct.__gnu_cxx::stdio_filebuf<char,std::char_traits<char>
>"* %_ZN9__gnu_cxx7buf_cinE
WARNING: Found global types that are not compatible:
[28 x sbyte]* %_ZN9__gnu_cxx7ctype_cE
"struct.std::ctype<char>"* %_ZN9__gnu_cxx7ctype_cE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx7ctype_wE
"struct.std::codecvt<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx7ctype_wE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx8buf_cerrE
"struct.__gnu_cxx::stdio_filebuf<char,std::char_traits<char>
>"* %_ZN9__gnu_cxx8buf_cerrE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx8buf_coutE
"struct.__gnu_cxx::stdio_filebuf<char,std::char_traits<char>
>"* %_ZN9__gnu_cxx8buf_coutE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx8buf_wcinE
"struct.__gnu_cxx::stdio_filebuf<wchar_t,std::char_traits<wchar_t> >"*
%_ZN9__gnu_cxx8buf_wcinE
WARNING: Found global types that are not compatible:
[4 x sbyte]* %_ZN9__gnu_cxx8c_localeE
"struct.std::locale"* %_ZN9__gnu_cxx8c_localeE
WARNING: Found global types that are not compatible:
[12 x [4 x sbyte]]* %_ZN9__gnu_cxx8name_vecE
[12 x sbyte*]* %_ZN9__gnu_cxx8name_vecE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx9buf_wcerrE
"struct.__gnu_cxx::stdio_filebuf<wchar_t,std::char_traits<wchar_t> >"*
%_ZN9__gnu_cxx9buf_wcerrE
WARNING: Found global types that are not compatible:
[96 x sbyte]* %_ZN9__gnu_cxx9buf_wcoutE
"struct.__gnu_cxx::stdio_filebuf<wchar_t,std::char_traits<wchar_t> >"*
%_ZN9__gnu_cxx9buf_wcoutE
WARNING: Found global types that are not compatible:
[28 x [4 x sbyte]]* %_ZN9__gnu_cxx9cache_vecE
[28 x "struct.std::locale::facet"*]* %_ZN9__gnu_cxx9cache_vecE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx9codecvt_cE
"struct.std::codecvt<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9codecvt_cE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx9codecvt_wE
"struct.std::codecvt<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9codecvt_wE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx9collate_cE
"struct.std::collate<char>"* %_ZN9__gnu_cxx9collate_cE
WARNING: Found global types that are not compatible:
[12 x sbyte]* %_ZN9__gnu_cxx9collate_wE
"struct.std::collate<char>"* %_ZN9__gnu_cxx9collate_wE
WARNING: Found global types that are not compatible:
[28 x [4 x sbyte]]* %_ZN9__gnu_cxx9facet_vecE
[28 x "struct.std::locale::facet"*]* %_ZN9__gnu_cxx9facet_vecE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx9num_get_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9num_get_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx9num_get_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9num_get_wE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx9num_put_cE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9num_put_cE
WARNING: Found global types that are not compatible:
[8 x sbyte]* %_ZN9__gnu_cxx9num_put_wE
"struct.std::__codecvt_abstract_base<char,char,__mbstate_t>"*
%_ZN9__gnu_cxx9num_put_wE
WARNING: Found global types that are not compatible:
[144 x sbyte]* %_ZSt3cin
"struct.std::basic_istream<char,std::char_traits<char> >"*
%_ZSt3cin
WARNING: Found global types that are not compatible:
[140 x sbyte]* %_ZSt4cerr
"struct.std::basic_ostream<char,std::char_traits<char> >"*
%_ZSt4cerr
WARNING: Found global types that are not compatible:
[140 x sbyte]* %_ZSt4clog
"struct.std::basic_ostream<char,std::char_traits<char> >"*
%_ZSt4clog
WARNING: Found global types that are not compatible:
"struct.std::basic_ostream<char,std::char_traits<char> >"*
%_ZSt4cout
[140 x sbyte]* %_ZSt4cout
WARNING: Found global types that are not compatible:
[148 x sbyte]* %_ZSt4wcin
"struct.std::basic_istream<wchar_t,std::char_traits<wchar_t>
>"* %_ZSt4wcin
WARNING: Found global types that are not compatible:
[144 x sbyte]* %_ZSt5wcerr
"struct.std::basic_ostream<wchar_t,std::char_traits<wchar_t>
>"* %_ZSt5wcerr
WARNING: Found global types that are not compatible:
[144 x sbyte]* %_ZSt5wclog
"struct.std::basic_ostream<wchar_t,std::char_traits<wchar_t>
>"* %_ZSt5wclog
WARNING: Found global types that are not compatible:
[144 x sbyte]* %_ZSt5wcout
"struct.std::basic_ostream<wchar_t,std::char_traits<wchar_t>
>"* %_ZSt5wcout
[yue at RH9 Shootout-C++]$
-------------------------------------------
yueqiang
2003/12/22
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