Options: explicit handling of --

Clients of the option parsing library should handle it explicitly
using a KIND_REMAINING_ARGS option.

Clang and lld have been updated in r188316 and r188318, respectively.

Also fix -Wsign-compare warning in the option parsing test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188323 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips][msa] Value types for MSA support.

Added v8f16 to ValueTypes.h, ValueTypes.cpp, ValueTypes.td, 
and CodeGenTarget.cpp

Patch by Daniel Sanders


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188326 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r187191, which broke opt -mem2reg on the testcases included in PR16867.
However, opt -O2 doesn't run mem2reg directly so nobody noticed until r188146
when SROA started sending more things directly down the PromoteMemToReg path.

In order to revert r187191, I also revert dependent revisions r187296, r187322
and r188146. Fixes PR16867. Does not add the testcases from that PR, but both
of them should get added for both mem2reg and sroa when this revert gets
unreverted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188327 91177308-0d34-0410-b5e6-96231b3b80d8
Remove duplicate copy of testcase in r188327.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188328 91177308-0d34-0410-b5e6-96231b3b80d8