1 //===- TestDataLayoutQuery.cpp - Test Data Layout Queries -----------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "TestDialect.h"
10 #include "mlir/Analysis/DataLayoutAnalysis.h"
11 #include "mlir/Dialect/DLTI/DLTI.h"
12 #include "mlir/IR/BuiltinAttributes.h"
13 #include "mlir/Pass/Pass.h"
14 
15 using namespace mlir;
16 
17 namespace {
18 
19 /// A pass that finds "test.data_layout_query" operations and attaches to them
20 /// attributes containing the results of data layout queries for operation
21 /// result types.
22 struct TestDataLayoutQuery
23     : public PassWrapper<TestDataLayoutQuery, OperationPass<func::FuncOp>> {
24   MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestDataLayoutQuery)
25 
26   StringRef getArgument() const final { return "test-data-layout-query"; }
27   StringRef getDescription() const final { return "Test data layout queries"; }
28   void runOnOperation() override {
29     func::FuncOp func = getOperation();
30     Builder builder(func.getContext());
31     const DataLayoutAnalysis &layouts = getAnalysis<DataLayoutAnalysis>();
32 
33     func.walk([&](test::DataLayoutQueryOp op) {
34       // Skip the ops with already processed in a deeper call.
35       if (op->getAttr("size"))
36         return;
37 
38       const DataLayout &layout = layouts.getAbove(op);
39       unsigned size = layout.getTypeSize(op.getType());
40       unsigned bitsize = layout.getTypeSizeInBits(op.getType());
41       unsigned alignment = layout.getTypeABIAlignment(op.getType());
42       unsigned preferred = layout.getTypePreferredAlignment(op.getType());
43       op->setAttrs(
44           {builder.getNamedAttr("size", builder.getIndexAttr(size)),
45            builder.getNamedAttr("bitsize", builder.getIndexAttr(bitsize)),
46            builder.getNamedAttr("alignment", builder.getIndexAttr(alignment)),
47            builder.getNamedAttr("preferred", builder.getIndexAttr(preferred))});
48     });
49   }
50 };
51 } // namespace
52 
53 namespace mlir {
54 namespace test {
55 void registerTestDataLayoutQuery() { PassRegistration<TestDataLayoutQuery>(); }
56 } // namespace test
57 } // namespace mlir
58