tree 35e3dd4ff5c1c2eae85f40234112ab7f1098ec87
parent e2a2f3f7fcf2175b16a96c47e5d8cb566258d1ae
author Krzysztof Parzyszek <kparzysz@quicinc.com> 1582732572 -0600
committer Krzysztof Parzyszek <kparzysz@quicinc.com> 1582900378 -0600

Reland 7691790dfd1011d08f5468f63952d7690755aad4 with a MSAN fix

In some cases when HexagonTargetLowering::allowsMemoryAccess returned
true, it did not set the "Fast" argument, leaving it uninitialized.

[Hexagon] Improve casting of boolean HVX vectors to scalars

- Mark memory access for bool vectors as disallowed in target lowering.
  This will prevent combining bitcasts of bool vectors with stores.
- Replace the actual bitcasting code with a faster version.
- Handle casting of v16i1 to i16.