Olle Fredriksson 9d555b4a83 [DFAJumpThreading] make update order deterministic ...

We tracked down some non-determinism in compilation output to the
DFAJumpThreading pass. These changes fixed our issue:

* Make the DefMap type a MapVector to make its iteration order depend on
  insertion order.
* Sort the values to be inserted into NewDefs by instruction order to
  make the insertion order deterministic. Since these values come from
  iterating over a ValueMap, which doesn't have deterministic iteration
  order, I couldn't fix this at its source.

Reviewed By: alexey.zhikhar

Differential Revision: https://reviews.llvm.org/D118590

2022-02-01 11:02:58 -05:00

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