Jonas Paulsson eaa78035c6 [SystemZ] Patchset for expanding memcpy/memset using at most two stores. ...

* Set MaxStoresPerMemcpy and MaxStoresPerMemset to 2.

* Optimize stores of replicated values in SystemZ::combineSTORE(). This
  handles the now expanded memory operations and as well some other
  pre-existing cases.

* Reject a big displacement in isLegalAddressingMode() for a vector type.

* Return true from shouldConsiderGEPOffsetSplit().

Reviewed By: Ulrich Weigand

Differential Revision: https://reviews.llvm.org/D122105

2022-05-13 15:31:09 +02:00

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