[Hexagon] Report if changes were made in HvxIdioms pass
authorKrzysztof Parzyszek <kparzysz@quicinc.com>
Fri, 14 Oct 2022 22:44:24 +0000 (15:44 -0700)
committerKrzysztof Parzyszek <kparzysz@quicinc.com>
Fri, 14 Oct 2022 22:46:33 +0000 (15:46 -0700)
commit6cb2a02a384aece45e35d6e92bdfd3d52785492f
tree6681b2d5622aa5308895e1225b1bfb0d9c2f4f57
parentbc99fd95e090a406a16fe431047d8b7d59af7dc0
[Hexagon] Report if changes were made in HvxIdioms pass

This should fix
```
Pass modifies its input and doesn't report it: Hexagon Vector Combine
Pass modifies its input and doesn't report it UNREACHABLE executed at
[...hecks-debian/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1436!
```
llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp