[PATCH] PowerPC VLE changes

[Andrew Jenner]

I'm in the process of preparing patches to add PowerPC VLE support to 
GCC. This patch is a prerequisite for that, fixing some BFD issues and 
adding some instructions:
* Volatile Context Save/Restore APU instructions as documented in 
http://www.nxp.com/files/32bit/doc/ref_manual/e200z3RM.pdf .
* E200z4 decorated load and store instructions as documented in 
http://www.nxp.com/files/32bit/doc/ref_manual/MPC5748GRM.pdf .

Okay to commit?

Thanks,

Andrew

---
bfd/ChangeLog:

     * elf32-ppc.c (is_branch_reloc): Recognise VLE branch relocations.
     (ppc_elf_howto_raw): Fix dst_mask of R_PPC_VLE_REL15.
     (ppc_elf_vle_split16): Clear field before inserting.

opcodes/ChangeLog:

     * ppc-opc.c (vle_opcodes): Alias 'e_cmpwi' to 'e_cmpi' and
     'e_cmplwi' to 'e_cmpli' instead.
     (OPVUPRT, OPVUPRT_MASK): Define.
     (powerpc_opcodes, vle_opcodes): Add entries.
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