Michael Maitland 030d334095 [TableGen] Rename ResourceCycles and StartAtCycle to clarify semantics
D150312 added a TODO:

TODO: consider renaming the field `StartAtCycle` and `Cycles` to
`AcquireAtCycle` and `ReleaseAtCycle` respectively, to stress the
fact that resource allocation is now represented as an interval,
relatively to the issue cycle of the instruction.

This patch implements that TODO. This naming clarifies how to use these
fields in the scheduler. In addition it was confusing that `StartAtCycle` was
singular but `Cycles` was plural. This renaming fixes this inconsistency.

Differential Revision: https://reviews.llvm.org/D158568
2023-08-24 11:20:37 -07:00
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