Untabify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181247 91177308-0d34-0410-b5e6-96231b3b80d8
Hoist boundary condition out of loop header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181248 91177308-0d34-0410-b5e6-96231b3b80d8
InstCombine: (X ^ signbit) + C -> X + (signbit ^ C)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181249 91177308-0d34-0410-b5e6-96231b3b80d8
Cleanup of the HexagonTargetMachine setup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181250 91177308-0d34-0410-b5e6-96231b3b80d8
Support command line option categories.

Patch by Dan Liew!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181253 91177308-0d34-0410-b5e6-96231b3b80d8
Implemented public interface for modifying registered (not positional or sink options) command line options at runtime.

Patch by Dan Liew!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181254 91177308-0d34-0410-b5e6-96231b3b80d8
Print IR from Hexagon MI passes with -print-before/after-all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181255 91177308-0d34-0410-b5e6-96231b3b80d8