[Bug c++/44550] New: Wrong filename in error message when using c++0x + optimised + precompiled headers

[small_duck at revesdemondes dot com]

I'm noticing wrong filenames and line numbers on error messages when combining
optimised build with c++0x and precompiled headers. Here is a minimal test
case:

All.h:
#include <string>

test.h:
#include "All.h"

test.cpp:
#include "test.h"
Test::Test()
{
}

g++ -std=gnu++0x -O3 All.h
g++ -std=gnu++0x -O3 test.cpp
test.h:2: error: ‘Test’ has not been declared
test.h:2: error: ISO C++ forbids declaration of ‘Test’ with no type

If I:
- Don't use gnu++0x
- Or don't use -O3
- Or don't precompile All.h
- Or include All.h directly in test.cpp
then I get the expected error message

test.cpp:3: error: ‘Test’ has not been declared
test.cpp:3: error: ISO C++ forbids declaration of ‘Test’ with no type

System: Linux 2.6.32-5-amd64 #1 SMP Tue Jun 1 04:34:03 UTC 2010 x86_64
GNU/Linux

g++ -v -save-temps:
Using built-in specs.
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.4-1'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--enable-multiarch --enable-linker-build-id --with-system-zlib
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.4 --program-suffix=-4.4 --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
--with-arch-32=i486 --with-tune=generic --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.4.4 (Debian 4.4.4-1)


-- 
           Summary: Wrong filename in error message when using c++0x +
                    optimised + precompiled headers
           Product: gcc
           Version: 4.4.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: small_duck at revesdemondes dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44550