Hello,
I have a problem with clang release build (Darwin x86_64).
1) Fetch llvm and clang trunk.
2) ../configure --prefix=/opt/llvm-selfhost --disable-assertions --enable-optimized --enable-targets=arm,cpp,x86,x86_64
3) make && make install
4) ../configure --prefix=/opt/llvm-selfhost --disable-assertions --enable-optimized --enable-targets=arm,cpp,x86,x86_64 CC=/opt/llvm-selfhost/bin/clang CXX=/opt/llvm-selfhost/bin/clang++
5) make clean && make