Assume defaults to produce smaller datalayout strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197249 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Simplify the Neon Scalar3Same patterns for floating-point reciprocal
step, floating-point reciprocal square root step, floating-point absolute
difference, and integer/floating-point compare instructions.  Also, move the
scalar general arithmetic operation patterns closer to similar code.  No
functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197250 91177308-0d34-0410-b5e6-96231b3b80d8
Convert liveness tracking to work on a sub-register level instead of just register units.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197253 91177308-0d34-0410-b5e6-96231b3b80d8
Liveness Analysis Pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197254 91177308-0d34-0410-b5e6-96231b3b80d8
Grow the stackmap/patchpoint format to hold 64-bit IDs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197255 91177308-0d34-0410-b5e6-96231b3b80d8