Start pushing changes for Mips Fast-Isel



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206505 91177308-0d34-0410-b5e6-96231b3b80d8
remove some dead code

 lib/Analysis/IPA/InlineCost.cpp         |   18 ------------------
 lib/Analysis/RegionPass.cpp             |    1 -
 lib/Analysis/TypeBasedAliasAnalysis.cpp |    1 -
 lib/Transforms/Scalar/LoopUnswitch.cpp  |   21 ---------------------
 lib/Transforms/Utils/LCSSA.cpp          |    2 --
 lib/Transforms/Utils/LoopSimplify.cpp   |    6 ------
 utils/TableGen/AsmWriterEmitter.cpp     |   13 -------------
 utils/TableGen/DFAPacketizerEmitter.cpp |    7 -------
 utils/TableGen/IntrinsicEmitter.cpp     |    2 --
 9 files changed, 71 deletions(-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206506 91177308-0d34-0410-b5e6-96231b3b80d8
Fix bug 19437 - Only add discriminators for DWARF 4 and above.

Summary:
This prevents the discriminator generation pass from triggering if
the DWARF version being used in the module is prior to 4.

Reviewers: echristo, dblaikie

CC: llvm-commits

Differential Revision: http://reviews.llvm.org/D3413

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206507 91177308-0d34-0410-b5e6-96231b3b80d8