Craig Topper 0813b90ff5
[TypePromotion] Support positive addition amounts in isSafeWrap. (#81690)
We can support these by changing the sext promotion to -zext(-C) and
replacing a sgt check with ugt. Reframing the logic in terms of how the
unsigned range are affected. More comments in the patch.

The new cases check isLegalAddImmediate to avoid some
regressions in lit tests.
2024-03-01 09:17:14 -08:00
..
2024-02-25 11:37:43 +01:00
2023-08-08 21:59:53 +01:00

++ SVE CodeGen Warnings ++

When the WARN check lines fail in the SVE codegen tests it most likely means you
have introduced a warning due to:
1. Adding an invalid call to VectorType::getNumElements() or EVT::getVectorNumElements()
   when the type is a scalable vector.
2. Relying upon an implicit cast conversion from TypeSize to uint64_t.

For generic code, please modify your code to work with ElementCount and TypeSize directly.
For target-specific code that only deals with fixed-width vectors, use the fixed-size interfaces.
Please refer to the code where those functions live for more details.