| 1 | //===- InferShapeTest.cpp - unit tests for shape inference ----------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "mlir/Dialect/MemRef/IR/MemRef.h" |
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| 10 | #include "mlir/IR/AffineMap.h" |
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| 11 | #include "mlir/IR/Builders.h" |
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| 12 | #include "mlir/IR/BuiltinTypes.h" |
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| 13 | #include "gtest/gtest.h" |
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| 14 | |
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| 15 | using namespace mlir; |
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| 16 | using namespace mlir::memref; |
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| 17 | |
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| 18 | // Source memref has identity layout. |
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| 19 | TEST(InferShapeTest, inferRankReducedShapeIdentity) { |
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| 20 | MLIRContext ctx; |
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| 21 | OpBuilder b(&ctx); |
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| 22 | auto sourceMemref = MemRefType::get({10, 5}, b.getIndexType()); |
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| 23 | auto reducedType = SubViewOp::inferRankReducedResultType( |
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| 24 | /*resultShape=*/{2}, sourceMemref, {2, 3}, {1, 2}, {1, 1}); |
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| 25 | auto expectedType = MemRefType::get( |
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| 26 | {2}, b.getIndexType(), |
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| 27 | StridedLayoutAttr::get(&ctx, /*offset=*/13, /*strides=*/{1})); |
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| 28 | EXPECT_EQ(reducedType, expectedType); |
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| 29 | } |
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| 30 | |
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| 31 | // Source memref has non-identity layout. |
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| 32 | TEST(InferShapeTest, inferRankReducedShapeNonIdentity) { |
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| 33 | MLIRContext ctx; |
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| 34 | OpBuilder b(&ctx); |
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| 35 | AffineExpr dim0, dim1; |
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| 36 | bindDims(ctx: &ctx, exprs&: dim0, exprs&: dim1); |
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| 37 | auto sourceMemref = MemRefType::get({10, 5}, b.getIndexType(), |
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| 38 | AffineMap::get(2, 0, 1000 * dim0 + dim1)); |
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| 39 | auto reducedType = SubViewOp::inferRankReducedResultType( |
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| 40 | /*resultShape=*/{2}, sourceMemref, {2, 3}, {1, 2}, {1, 1}); |
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| 41 | auto expectedType = MemRefType::get( |
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| 42 | {2}, b.getIndexType(), |
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| 43 | StridedLayoutAttr::get(&ctx, /*offset=*/2003, /*strides=*/{1})); |
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| 44 | EXPECT_EQ(reducedType, expectedType); |
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| 45 | } |
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| 46 | |
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| 47 | TEST(InferShapeTest, inferRankReducedShapeToScalar) { |
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| 48 | MLIRContext ctx; |
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| 49 | OpBuilder b(&ctx); |
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| 50 | AffineExpr dim0, dim1; |
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| 51 | bindDims(ctx: &ctx, exprs&: dim0, exprs&: dim1); |
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| 52 | auto sourceMemref = MemRefType::get({10, 5}, b.getIndexType(), |
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| 53 | AffineMap::get(2, 0, 1000 * dim0 + dim1)); |
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| 54 | auto reducedType = SubViewOp::inferRankReducedResultType( |
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| 55 | /*resultShape=*/{}, sourceMemref, {2, 3}, {1, 1}, {1, 1}); |
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| 56 | auto expectedType = MemRefType::get( |
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| 57 | {}, b.getIndexType(), |
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| 58 | StridedLayoutAttr::get(&ctx, /*offset=*/2003, /*strides=*/{})); |
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| 59 | EXPECT_EQ(reducedType, expectedType); |
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| 60 | } |
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| 61 | |
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