Lattice Mico32 port

[Jon Beniston]

> I am pleased to announce that the GCC Steering Committee has
> accepted the Lattice Mico32 port for inclusion in GCC.  The initial
> patch needs approval from a GCC GWP maintainer before it 
> may be committed.

Great - thanks.

Probably best to review an updated patch which is attached, which implements
all the 4.5 changes.

Cheers,
Jon

ChangeLog

gcc/
2009-09-21  Jon Beniston <jon@beniston.com>

        * config.gcc: Add lm32 elf and linux targets.
        * config/lm32: New directory.
        * config/lm32/arithmetic.c: New file.
        * config/lm32/crti.S: New file.
        * config/lm32/crtn.S: New file.
        * config/lm32/lib1funcs.S: New file.
        * config/lm32/lm32.c: New file.
        * config/lm32/lm32.h: New file.
        * config/lm32/lm32.md: New file.
        * config/lm32/lm32.opt: New file.
        * config/lm32/lm32-protos.h: New file.
        * config/lm32/predicates.md: New file.
        * config/lm32/t-elf: New file.
        * config/lm32/t-linux: New file.
        * config/lm32/t-lm32: New file.
        * config/lm32/uclinux-elf.h: New file.
        * config/lm32/xm-lm32.h: New file.


gcc/testsuite/
2009-09-21  Jon Beniston <jon@beniston.com>

        * lib/target-supports.exp (check_profiling_available): lm32 target 
          doesn't support profiling.
        * gcc.dg/builtins-config.h: lm32 doesn't have the entire C99
runtime.
        * gcc.dg/20020312-2.c: Add lm32 support.
        * g++.dg/other/packed1.C: Expect to fail on lm32.        
        * g++.old-deja/g++.jason/thunk3.C: Likewise.                 

libgcc/
2009-09-21  Jon Beniston <jon@beniston.com>

        * config.host: Add lm32 targets.

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