[mips] Add support for command-line options -mno-check-zero-division and
-mcheck-zero-division.



git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186710 91177308-0d34-0410-b5e6-96231b3b80d8
Update users manual to indicate:
  1) clang++ must be used when linking C++ programs using -fsanitize=undefined, and
  2) MSan can't be combined with TSan or ASan.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186711 91177308-0d34-0410-b5e6-96231b3b80d8
Fix for template substitution with packs.

When we see a pack, and replace it with a template argument which is
also a pack, we want to use the pack pattern, not the expanded pack.
The caller should take care of expanding the pack afterwards.

Fixes PR16646.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186713 91177308-0d34-0410-b5e6-96231b3b80d8
Create calling convention AttributedType sugar nodes

Canonical types are unchanged.  The type printer had to be changed to
avoid printing any non-default implicit calling convention as well as
the calling convention attribute.

Reviewers: rjmccall

Differential Revision: http://llvm-reviews.chandlerc.com/D1132

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@186714 91177308-0d34-0410-b5e6-96231b3b80d8