[mlir][vector] Tidy-up testing for to/from_elements unrolling (#158309)

1. Remove `TestUnrollVectorToElements` and
   `TestUnrollVectorFromElements` test passes - these are not required.
2. Make "vector-from-elements-lowering.mlir" use TD Op for testing (for
   consistency "vector-to-elements-lowering.mlir" and to make sure that
   the TD Op, `transform.apply_patterns.vector.unroll_from_elements`, is
   tested).
3. Unify `CHECK` prefixes (`CHECK-UNROLL` -> `CHECK`).
4. Rename `@to_elements_1d` as `@negative_unroll_to_elements_1d`, for
   consistency with it's counterpart for `vector.from_elements` and to
   align with our testing guide (*).

(*)
https://mlir.llvm.org/getting_started/TestingGuide/#after-step-3-add-the-newly-identified-missing-case

1 files changed, 0 insertions, 48 deletions

diff --git a/mlir/test/lib/Dialect/Vector/TestVectorTransforms.cpp b/mlir/test/lib/Dialect/Vector/TestVectorTransforms.cpp
index c2d184626818..3360f3b70a81 100644
--- a/mlir/test/lib/Dialect/Vector/TestVectorTransforms.cpp
+++ b/mlir/test/lib/Dialect/Vector/TestVectorTransforms.cpp
@@ -756,50 +756,6 @@ struct TestVectorGatherLowering
   }
 };
 
-struct TestUnrollVectorFromElements
-    : public PassWrapper<TestUnrollVectorFromElements,
-                         OperationPass<func::FuncOp>> {
-  MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestUnrollVectorFromElements)
-
-  StringRef getArgument() const final {
-    return "test-unroll-vector-from-elements";
-  }
-  StringRef getDescription() const final {
-    return "Test unrolling patterns for from_elements ops";
-  }
-  void getDependentDialects(DialectRegistry &registry) const override {
-    registry.insert<func::FuncDialect, vector::VectorDialect, ub::UBDialect>();
-  }
-
-  void runOnOperation() override {
-    RewritePatternSet patterns(&getContext());
-    populateVectorFromElementsLoweringPatterns(patterns);
-    (void)applyPatternsGreedily(getOperation(), std::move(patterns));
-  }
-};
-
-struct TestUnrollVectorToElements
-    : public PassWrapper<TestUnrollVectorToElements,
-                         OperationPass<func::FuncOp>> {
-  MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestUnrollVectorToElements)
-
-  StringRef getArgument() const final {
-    return "test-unroll-vector-to-elements";
-  }
-  StringRef getDescription() const final {
-    return "Test unrolling patterns for to_elements ops";
-  }
-  void getDependentDialects(DialectRegistry &registry) const override {
-    registry.insert<func::FuncDialect, vector::VectorDialect>();
-  }
-
-  void runOnOperation() override {
-    RewritePatternSet patterns(&getContext());
-    populateVectorToElementsLoweringPatterns(patterns);
-    (void)applyPatternsGreedily(getOperation(), std::move(patterns));
-  }
-};
-
 struct TestFoldArithExtensionIntoVectorContractPatterns
     : public PassWrapper<TestFoldArithExtensionIntoVectorContractPatterns,
                          OperationPass<func::FuncOp>> {
@@ -1071,10 +1027,6 @@ void registerTestVectorLowerings() {
 
   PassRegistration<TestVectorGatherLowering>();
 
-  PassRegistration<TestUnrollVectorFromElements>();
-
-  PassRegistration<TestUnrollVectorToElements>();
-
   PassRegistration<TestFoldArithExtensionIntoVectorContractPatterns>();
 
   PassRegistration<TestVectorEmulateMaskedLoadStore>();