[llvm] [AArch64] Add an AArch64 pass for loop idiom transformations (PR #72273)

[David Sherwood via llvm-commits]

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@@ -419,6 +419,8 @@ class AArch64TTIImpl : public BasicTTIImplBase<AArch64TTIImpl> {
 
     return BaseT::getStoreMinimumVF(VF, ScalarMemTy, ScalarValTy);
   }
+
+  std::optional<unsigned> getMinPageSize() const { return 4096; }
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david-arm wrote:

Good suggestion! I added this in TargetTransformInfo.cpp in a similar way to the CacheLineSize option.

https://github.com/llvm/llvm-project/pull/72273