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4 Commits

Author SHA1 Message Date
Nikita Popov
864bb84a42 [IndVarSimplify] Convert tests to opaque pointers (NFC) 
This leaves lftr.ll alone, because there is a suspicious test diff.
 2022-12-13 14:50:13 +01:00
Bjorn Pettersson
a11faeed44 [test] Switch to use -passes syntax in various test cases 2022-12-01 21:25:59 +01:00
Max Kazantsev
c913dccfde [SCEV] Use lshr in implications 
This patch adds support for implication inference logic for the
following pattern:
```
  lhs < (y >> z) <= y, y <= rhs --> lhs < rhs
```
We should be able to use the fact that value shifted to right is
not greater than the original value (provided it is non-negative).

Differential Revision: https://reviews.llvm.org/D116150
Reviewed-By: apilipenko
 2022-01-25 13:25:19 +07:00
Max Kazantsev
958e7a284d [Test] Add test showing missing opportunity in IndVar's handling of lshr 2021-12-22 15:08:22 +07:00