Sam Kolton 6e4c55e686 [AMDGPU] Assembler: Support DPP instructions.
Supprot DPP syntax as used in SP3 (except several operands syntax).
Added dpp-specific operands in td-files.
Added DPP flag to TSFlags to determine if instruction is dpp in InstPrinter.
Support for VOP2 DPP instructions in td-files.
Some tests for DPP instructions.

ToDo:
  - VOP2bInst:
    - vcc is considered as operand
    - AsmMatcher doesn't apply mnemonic aliases when parsing operands
  - v_mac_f32
  - v_nop
  - disable instructions with 64-bit operands
  - change dpp_ctrl assembler representation to conform sp3

Review: http://reviews.llvm.org/D17804

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263008 91177308-0d34-0410-b5e6-96231b3b80d8
2016-03-09 12:29:31 +00:00
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