[cfe-dev] [PATCH] clang/MIPS additional command-line options

[Oleksandr Tymoshenko]

I was trying to test clang on FReeBSD/mips and came to conclusion that some additional
keys required to set proper target for compilation. This patch adds several knobs to clang/MIPS:
    - floating point ABI (-msoft-float/-mhard-float)
    - target CPU (-march=)
    - target ABI (-mabi=)

Also byte order is set explicitly for toolchain assembler in based on target architecture 
(mips/mipsel) so we don't rely on assembler default.