[mlir][linalg] DONOTCOMMIT - Example matmul to vector.contract.

mlir/integration_test/Dialect/Linalg/CPU/benchmark_matmul.mlir

 // RUN: export M=24 && export K=64 && export N=192 && export ITERS=10 && \
 // RUN: cat %s | sed 's@${M}@'"$M"'@g'| sed 's@${K}@'"$K"'@g' | sed 's@${N}@'"$N"'@g'| sed 's@${ITERS}@'"$ITERS"'@g'| \
-// RUN: mlir-opt -test-linalg-codegen-strategy="anchor-op=linalg.matmul register-tile-sizes=12,32,16 vectorize" | \
+// RUN: mlir-opt -test-linalg-codegen-strategy="anchor-op=linalg.matmul register-tile-sizes=12,32,16 vectorize"
+
+// | \
 // RUN: mlir-opt -test-linalg-codegen-strategy="anchor-op=linalg.fill register-tile-sizes=4,32 vectorize" | \
 // RUN: mlir-opt -test-linalg-codegen-strategy="anchor-op=linalg.copy register-tile-sizes=4,32 vectorize" | \
 
 // RUN: mlir-opt -canonicalize -convert-vector-to-scf -lower-affine -convert-linalg-to-loops | \
 // RUN: mlir-opt -canonicalize -convert-scf-to-std -convert-vector-to-llvm | \
 // RUN: mlir-cpu-runner -O3 -e main -entry-point-result=void \
 // Activate to dump assembly
 // R_UN:   -dump-object-file -object-filename=/tmp/a.o \

mlir/lib/Dialect/Linalg/Transforms/CodegenStrategy.cpp

void mlir::linalg::CodegenStrategy::transform(FuncOp func) const {
   };
   linalg::applyStagedPatterns(func, stage1Patterns, std::move(stage2Patterns),
                               stage3Transforms);
 
   //===--------------------------------------------------------------------===//
   // Post staged patterns transforms
   //===--------------------------------------------------------------------===//
 
-  // Programmatic splitting of slow/fast path vector transfers.
-  OwningRewritePatternList patterns;
-  patterns.insert<vector::VectorTransferFullPartialRewriter>(
-      context, vectorTransformsOptions);
-  applyPatternsAndFoldGreedily(func, std::move(patterns));
-
-  // Programmatic controlled lowering of vector.contract only.
-  OwningRewritePatternList vectorContractLoweringPatterns;
-  vectorContractLoweringPatterns
-      .insert<ContractionOpToOuterProductOpLowering,
-              ContractionOpToMatmulOpLowering, ContractionOpLowering>(
-          vectorTransformsOptions, context);
-  applyPatternsAndFoldGreedily(func, std::move(vectorContractLoweringPatterns));
-
-  // Programmatic controlled lowering of vector.transfer only.
-  OwningRewritePatternList vectorToLoopsPatterns;
-  populateVectorToSCFConversionPatterns(vectorToLoopsPatterns, context,
-                                        vectorToSCFOptions);
-  applyPatternsAndFoldGreedily(func, std::move(vectorToLoopsPatterns));
+  //   // Programmatic splitting of slow/fast path vector transfers.
+  //   OwningRewritePatternList patterns;
+  //   patterns.insert<vector::VectorTransferFullPartialRewriter>(
+  //       context, vectorTransformsOptions);
+  //   applyPatternsAndFoldGreedily(func, std::move(patterns));
+
+  //   // Programmatic controlled lowering of vector.contract only.
+  //   OwningRewritePatternList vectorContractLoweringPatterns;
+  //   vectorContractLoweringPatterns
+  //       .insert<ContractionOpToOuterProductOpLowering,
+  //               ContractionOpToMatmulOpLowering, ContractionOpLowering>(
+  //           vectorTransformsOptions, context);
+  //   applyPatternsAndFoldGreedily(func,
+  //   std::move(vectorContractLoweringPatterns));
+
+  //   // Programmatic controlled lowering of vector.transfer only.
+  //   OwningRewritePatternList vectorToLoopsPatterns;
+  //   populateVectorToSCFConversionPatterns(vectorToLoopsPatterns, context,
+  //                                         vectorToSCFOptions);
+  //   applyPatternsAndFoldGreedily(func, std::move(vectorToLoopsPatterns));
 
   // Ensure we drop the marker in the end.
   func.walk([](LinalgOp op) {
     op.removeAttr(LinalgTransforms::kLinalgTransformMarker);
   });
 }