R600: Use the GPU type to determine the correct DataLayout v2

v2:
  - Add R600_DOUBLE_OPS for RV670
  - s/CPU/GPU/

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176440 91177308-0d34-0410-b5e6-96231b3b80d8
hasQualifer() matcher should return false if there's no qualifier

Instead of passing NULL on to sub-matcher, just return false. Updated tests and
regenerated docs.

Author: Tareq A Siraj <tareq.a.siraj@intel.com>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176441 91177308-0d34-0410-b5e6-96231b3b80d8