[Mlir-commits] [mlir] [MLIR] VectorEmulateNarrowType to support loading of unaligned vectors (PR #113411)

[Han-Chung Wang]

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@@ -474,26 +600,43 @@ struct ConvertVectorTransferRead final
         rewriter.create<memref::ExtractStridedMetadataOp>(loc, op.getSource());
 
     OpFoldResult linearizedIndices;
-    std::tie(std::ignore, linearizedIndices) =
+    memref::LinearizedMemRefInfo linearizedInfo;
+    std::tie(linearizedInfo, linearizedIndices) =
         memref::getLinearizedMemRefOffsetAndSize(
             rewriter, loc, srcBits, dstBits,
             stridedMetadata.getConstifiedMixedOffset(),
             stridedMetadata.getConstifiedMixedSizes(),
             stridedMetadata.getConstifiedMixedStrides(),
             getAsOpFoldResult(adaptor.getIndices()));
 
-    auto numElements = (origElements + scale - 1) / scale;
-    auto newReadType = VectorType::get(numElements, newElementType);
+    auto foldedIntraVectorOffset =
+        isUnalignedEmulation
+            ? getIntraVectorOffset(rewriter, loc, linearizedInfo)
+            : 0;
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hanhanW wrote:

nit: spells out the type

https://github.com/llvm/llvm-project/pull/113411