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In Polly we used both the term 'scattering' and the term 'schedule' to describe the execution order of a statement without actually distinguishing between them. We now uniformly use the term 'schedule' for the execution order. This corresponds to the terminology of isl. History: CLooG introduced the term scattering as the generated code can be used as a sequential execution order (schedule) or as a parallel dimension enumerating different threads of execution (placement). In Polly and/or isl the term placement was never used, but we uniformly refer to an execution order as a schedule and only later introduce parallelism. When doing so we do not talk about about specific placement dimensions. llvm-svn: 235380