[PATCH] [AArch64] Implement Clang CLI interface proposal about "-march".

[Kevin Qin]

Hi,

This patch is to change variable name from "Splited" to "Split".

For the test about -march, I believe the test in patch is enough to show all modifiers that it can accept, as CPU name is not allowed to put through -march. -mcpu and -mtune are the options designed to pass CPU name. See https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html .
I quoted related words from that webpage here:

//-march=name//
//Specify the name of the target architecture, optionally suffixed by one or more feature modifiers. This option has the form -march=arch{+[no]feature}, where the only permissible value for arch is ‘armv8-a’."//


Thanks,
Kevin

http://reviews.llvm.org/D4346

Files:
  include/clang/Basic/DiagnosticDriverKinds.td
  lib/Basic/Targets.cpp
  lib/Driver/ToolChains.cpp
  lib/Driver/Tools.cpp
  test/CodeGen/arm_acle.c
  test/Driver/aarch64-cpus.c
  test/Driver/aarch64-mfpu.c
  test/Preprocessor/aarch64-target-features.c
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