[STDCXX-741] [gcc 3.4.6] __rw_itoutf8() too big to be inlined

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: 27. Input/Output

Environment

gcc version 3.4.5 20060404 (Red Hat 3.4.6-3)

• Severity: Compiler Warning
• Assignee: Martin Sebor
• Reporter: Travis Vitek
• Created: 26/Feb/08 23:11
• Updated: 14/May/08 18:36
• Resolved: 14/May/08 18:36

Description

I get the following warning when building 12[d,D] on trunk.

/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h: In member function `virtual std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > std::collate_byname<wchar_t>::do_transform(const wchar_t*, const wchar_t*) const':
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:325: warning: called from here
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:369: warning: called from here
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:1174: warning: called from here
In file included from /amd/devco/vitek/stdcxx/trunk/src/collate.cpp:1152:
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:325: warning: called from here
In file included from /amd/devco/vitek/stdcxx/trunk/src/collate.cpp:1155:
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:369: warning: called from here
/amd/devco/vitek/stdcxx/trunk/include/loc/_localedef.h:685: warning: inlining failed in call to 'long unsigned int __rw::__rw_itoutf8(unsigned int, char*)': --param inline-unit-growth limit reached
/amd/devco/vitek/stdcxx/trunk/src/collate.cpp:1174: warning: called from here

This issue is very similar to STDCXX-415. The __rw_itoutf8() function and __rw_utf8toucs4() functions are nearly the same and both are found in the same area of include/loc/_localedef.h. It appears that something has changed that has moved the warning. Perhaps we should consider fixing both functions or just silencing the warning.