Add missing break in 256-bit palignr comment printing. No test case yet because the comment itself is still wrong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173669 91177308-0d34-0410-b5e6-96231b3b80d8
A bugfix for tblgen, in the function ‘emitSourceFileHeader’.
When the first parameter (‘Desc’) is more than 80 characters long, it will result the header line that contains the description to be more
Than (4GB!) long. Not only it takes forever to produce, the output file cannot be open, since its ginormous.

Patch by Elior Malul.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173672 91177308-0d34-0410-b5e6-96231b3b80d8
Fix 256-bit PALIGNR comment decoding to understand that it works on independent 256-bit lanes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173674 91177308-0d34-0410-b5e6-96231b3b80d8