[Reassociate] Rename local variable to not use same name as a member
variable. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222248 91177308-0d34-0410-b5e6-96231b3b80d8
[Hexagon] Converting from ADD_rr to A2_add which has encoding bits.
Adding test to show correct instruction selection and encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222249 91177308-0d34-0410-b5e6-96231b3b80d8
[Reassociate] Use test cases that can actually be optimized to verify optional
flags are cleared.  The reassociation pass was just reordering the leaf nodes
in the previous test cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222250 91177308-0d34-0410-b5e6-96231b3b80d8
R600/SI: Make sure resource descriptors are always stored in SGPRs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222253 91177308-0d34-0410-b5e6-96231b3b80d8
Fix an incorrect chain operand when expanding INSERT_VECTOR operations through the stack.

Patch by Daniil Troshkov!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222254 91177308-0d34-0410-b5e6-96231b3b80d8