[all-commits] [llvm/llvm-project] 99a8cc: [compiler-rt][builtins][RISCV] Port __clear_cache ...

[Luís Marques via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 99a8cc2b7d89ff73a20aa3e0317fee8b5cb5cecb
      https://github.com/llvm/llvm-project/commit/99a8cc2b7d89ff73a20aa3e0317fee8b5cb5cecb
  Author: Luís Marques <luismarques at lowrisc.org>
  Date:   2020-03-05 (Thu, 05 Mar 2020)

  Changed paths:
    M compiler-rt/lib/builtins/clear_cache.c

  Log Message:
  -----------
  [compiler-rt][builtins][RISCV] Port __clear_cache to RISC-V Linux

Implements `__clear_cache` for RISC-V Linux. We can't just use `fence.i` on
Linux, because the Linux thread might be scheduled on another hart, and the
`fence.i` instruction only flushes the icache of the current hart.