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From "Scott (Yu) Zhong (JIRA)" <j...@apache.org>
Subject [jira] Commented: (STDCXX-415) [gcc 3.3.3] __rw_utf8toucs4() too big to be inlined
Date Wed, 13 Feb 2008 18:43:08 GMT

    [ https://issues.apache.org/jira/browse/STDCXX-415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12568660#action_12568660
] 

Scott (Yu) Zhong commented on STDCXX-415:
-----------------------------------------

cannot reproduce the error on 4.2.x branch

uname -a && gcc -v && gcc -c -I/amd/devco/scottz/stdcxx/4.2.x/include/ansi
  -I/amd/devco/scottz/stdcxx/4.2.x/include -I/build/scottz/4.2.x/11s/include  -pedantic -nostdinc++
 -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align    /amd/devco/scottz/stdcxx/4.2.x/src/wctype.cpp
Linux darts 2.6.5-7.244-smp #1 SMP Mon Dec 12 18:32:25 UTC 2005 x86_64 x86_64 x86_64 GNU/Linux
Reading specs from /amd/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/bin/../lib/gcc-lib/x86_64-suse-linux/3.3.3/specs
Configured with: ../configure --enable-threads=posix --prefix=/nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41
--with-local-prefix=/usr/local --infodir=/nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/info
--mandir=/nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/man --enable-languages=c,c++,f77,objc,java
--disable-checking --libdir=/nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/lib --enable-libgcj
--with-gxx-include-dir=/nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/include/g++
--with-slibdir=//nfs/packages/mdx/suse/amd64/compilers/gcc/3.3.3-43.41/lib --with-system-zlib
--enable-shared --enable-__cxa_atexit x86_64-suse-linux
Thread model: posix
gcc version 3.3.3 (SuSE Linux)


> [gcc 3.3.3] __rw_utf8toucs4() too big to be inlined
> ---------------------------------------------------
>
>                 Key: STDCXX-415
>                 URL: https://issues.apache.org/jira/browse/STDCXX-415
>             Project: C++ Standard Library
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 4.1.3
>         Environment: gcc 3.3.3 (SuSE Linux)
>            Reporter: Martin Sebor
>            Priority: Minor
>             Fix For: 4.2.1
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> We're getting a few warnings for the __rw_utf8toucs4() inline function indicating that
the function is too big to be inlined. It might be a good idea to split it up into two, a
simple inline wrapper to handle the common case for single and perhaps two-byte characters
and a bigger out-of-line implementation to handle the more complicated multibyte characters.
> c++ -O2   -W -Wall -Wcast-qual -Winline -Wshadow -Wwrite-strings -Wno-long-long -Wcast-align
 -fPIC  /amd/devco/sebor/stdcxx/src/wctype.cpp
> gencat rwstderr.cat /amd/devco/sebor/stdcxx/src/rwstderr.msg
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp: In member function `virtual int 
>    std::codecvt_byname<wchar_t, char, __mbstate_t>::do_length(__mbstate_t&,

>    const char*, const char*, unsigned int) const':
> /amd/devco/sebor/stdcxx/include/loc/_localedef.h:735: warning: inlining failed 
>    in call to `const char* __rw::__rw_utf8toucs4(int*, const char*, const 
>    char*)'
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:964: warning: called from here
> In file included from /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:1065,
>                  from /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:1621:
> /amd/devco/sebor/stdcxx/include/loc/_localedef.h:735: warning: inlining failed 
>    in call to `const char* __rw::__rw_utf8toucs4(int*, const char*, const 
>    char*)'
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:964: warning: called from here
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp: In member function `virtual 
>    std::codecvt_base::result std::codecvt_byname<wchar_t, char, 
>    __mbstate_t>::do_in(__mbstate_t&, const char*, const char*, const char*&,

>    wchar_t*, wchar_t*, wchar_t*&) const':
> /amd/devco/sebor/stdcxx/include/loc/_localedef.h:735: warning: inlining failed 
>    in call to `const char* __rw::__rw_utf8toucs4(int*, const char*, const 
>    char*)'
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:736: warning: called from here
> In file included from /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:1396:
> /amd/devco/sebor/stdcxx/include/loc/_localedef.h:735: warning: inlining failed 
>    in call to `const char* __rw::__rw_utf8toucs4(int*, const char*, const 
>    char*)'
> /amd/devco/sebor/stdcxx/src/wcodecvt.cpp:736: warning: called from here

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