Created attachment 29028 [details]
source code which fails to compile

Hi,

I've found a possible bug in gcc. I've attached a source code which fails to compile with:

'g++ -c -O2 inline_problem.cpp'

Gcc prints:
inline_problem.cpp: In function ‘void bar(Foo&)’:
inline_problem.cpp:24:60: error: inlining failed in call to always_inline ‘Delegate<void(PAR)> delegate(OBJECT&, void (OBJECT::*)(PAR)) [with OBJECT = Foo; PAR = int]’: mismatched arguments
inline_problem.cpp:35:27: error: called from here

The code compiles, if you do any of the following:
* remove '-O2'
* replace 'sint' with 'int' at line 32
* remove one of the 'delegate' calls from the function 'bar'

It fails to compile with 4.4.6, 4.6.3, 4.7.2.
However, it compiles with 4.5.3.

g++-4.7 -v prints:
Using built-in specs.
COLLECT_GCC=g++-4.7
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 4.7.2-4' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.7 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --with-arch-32=i586 --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 4.7.2 (Debian 4.7.2-4)