[llvm-commits] [RFC] Patch 1/3 for the native code compiler of Erlang

[Yiannis Tsiouris]

The following patch (rebased on svn r155997) implements the High
Performance Erlang (HiPE) calling convention and is the first of a total
of three patches that allow the use of LLVM as a backend for the native
code compiler of Erlang, a concurrent functional language.

0001:
| Implemented a new calling convention (cc 11) for HiPE similar to GHC's
| cc 10. In detail:
| * Inserted new symbol "cc 11" (CallingConv::HiPE).
| * Created cc and retcc for both 32 and 64 bit.
| * HiPE cc defines no calleE-save registers.
| * HiPE cc supports tail call optimization.

0002:
| Hack fix for GR32_TC registers.
| Add EBX, EDI to GR32_TC register class to handle a "ran out of
| registers during register allocation" in case of tailcall existence
| because in EAX, ECX, EDX are all argument registers in HiPE CC.


Best regards,
Yiannis Tsiouris (as part of the ErLLVM team)
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