Use a reference into the BlockLiveness DenseMap to avoid repeated hash lookups in collectMarkers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175484 91177308-0d34-0410-b5e6-96231b3b80d8
Make the dump() function const and reduce the number of hash lookups it performs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175485 91177308-0d34-0410-b5e6-96231b3b80d8
Expand pseudos/macros BteqzT8SltiX16, BteqzT8SltiuX16,
BtnezT8SltiX16, BtnezT8SltiuX16 .



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175486 91177308-0d34-0410-b5e6-96231b3b80d8