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[RISCV] Implement MC layer support for the fence.tso instruction

Description

[RISCV] Implement MC layer support for the fence.tso instruction

The instruction makes use of a previously ignored field in the fence
instruction. It is introduced in the version 2.3 draft of the RISC-V
specification after much work by the Memory Model Task Group.

As clarified here https://github.com/riscv/riscv-isa-manual/issues/186,
the fence.tso assembler mnemonic does not have operands.

Details

Committed
asbJun 8 2018, 3:39 AM
Parents
rL334277: DebugNamesDWARFIndex: Implement regex version of the GetFunctions method
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