[X86] Add a test case showing failure to use the RMW form of ADC when the load is in operand 1 going into isel.
[X86] Add a test case showing failure to use the RMW form of ADC when the load is in operand 1 going into isel.

The ADC instruction is commutable, but we only have RMW isel patterns with a load on the left hand side. Nothing will canonicalize loads to the LHS on these ops. So we need two patterns.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@341605 91177308-0d34-0410-b5e6-96231b3b80d8

GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,apple/swift-llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm,llvm-mirror/llvm,apple/swift-llvm,apple/swift-llvm,llvm-mirror/llvm