R600/SI: Add a VALU pattern for i64 xor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211373 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: SI Control Flow Annotation bug fixed

Mixing of AddAvailableValue and GetValueAtEndOfBlock methods of SSAUpdater
leaded to the endless loop generation when the nested loops annotated.

This fixes a bug in the OCL_ML/KNN OpenCV test.  The test case is too
complex for FileCheck and would be very fragile.

Patch by: Elena Denisova

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211374 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Expand vector fexp2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211375 91177308-0d34-0410-b5e6-96231b3b80d8
R600: Expand vector flog2

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211376 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Add a pattern for f32 ftrunc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211377 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Add patterns for ctpop inside a branch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211378 91177308-0d34-0410-b5e6-96231b3b80d8