80 col. comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198653 91177308-0d34-0410-b5e6-96231b3b80d8
indvars: sink truncates outside the loop.

This is a follow up of the r198338 commit that added truncates for
lcssa phi nodes. Sinking the truncates below the phis cleans up the
loop and simplifies subsequent analysis within the indvars pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198654 91177308-0d34-0410-b5e6-96231b3b80d8
[Sparc] Add support for parsing memory operands in sparc AsmParser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198658 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "indvars: sink truncates outside the loop."

This reverts commit r198654.

One of the bots reported a SciMark failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198659 91177308-0d34-0410-b5e6-96231b3b80d8
Fix comment of findGCD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198660 91177308-0d34-0410-b5e6-96231b3b80d8