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 "TestOps.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
15using namespace mlir;
16
17namespace {
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.
22struct 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->getDiscardableAttr("size"))
36 return;
37
38 const DataLayout &layout = layouts.getAbove(operation: op);
39 llvm::TypeSize size = layout.getTypeSize(t: op.getType());
40 llvm::TypeSize bitsize = layout.getTypeSizeInBits(t: op.getType());
41 uint64_t alignment = layout.getTypeABIAlignment(t: op.getType());
42 uint64_t preferred = layout.getTypePreferredAlignment(t: op.getType());
43 uint64_t index = layout.getTypeIndexBitwidth(t: op.getType()).value_or(0);
44 Attribute endianness = layout.getEndianness();
45 Attribute defaultMemorySpace = layout.getDefaultMemorySpace();
46 Attribute allocaMemorySpace = layout.getAllocaMemorySpace();
47 Attribute manglingMode = layout.getManglingMode();
48 Attribute programMemorySpace = layout.getProgramMemorySpace();
49 Attribute globalMemorySpace = layout.getGlobalMemorySpace();
50 uint64_t stackAlignment = layout.getStackAlignment();
51 Attribute functionPointerAlignment = layout.getFunctionPointerAlignment();
52 Attribute legalIntWidths = layout.getLegalIntWidths();
53
54 auto convertTypeSizeToAttr = [&](llvm::TypeSize typeSize) -> Attribute {
55 if (!typeSize.isScalable())
56 return builder.getIndexAttr(typeSize);
57
58 return builder.getDictionaryAttr({
59 builder.getNamedAttr("scalable", builder.getUnitAttr()),
60 builder.getNamedAttr(
61 "minimal_size",
62 builder.getIndexAttr(typeSize.getKnownMinValue())),
63 });
64 };
65
66 op->setAttrs(
67 {builder.getNamedAttr("size", convertTypeSizeToAttr(size)),
68 builder.getNamedAttr("bitsize", convertTypeSizeToAttr(bitsize)),
69 builder.getNamedAttr("alignment", builder.getIndexAttr(alignment)),
70 builder.getNamedAttr("preferred", builder.getIndexAttr(preferred)),
71 builder.getNamedAttr("index", builder.getIndexAttr(index)),
72 builder.getNamedAttr("endianness", endianness == Attribute()
73 ? builder.getStringAttr("")
74 : endianness),
75 builder.getNamedAttr("default_memory_space",
76 defaultMemorySpace == Attribute()
77 ? builder.getUI32IntegerAttr(0)
78 : defaultMemorySpace),
79 builder.getNamedAttr("alloca_memory_space",
80 allocaMemorySpace == Attribute()
81 ? builder.getUI32IntegerAttr(0)
82 : allocaMemorySpace),
83 builder.getNamedAttr("mangling_mode", manglingMode == Attribute()
84 ? builder.getStringAttr("")
85 : manglingMode),
86 builder.getNamedAttr("program_memory_space",
87 programMemorySpace == Attribute()
88 ? builder.getUI32IntegerAttr(0)
89 : programMemorySpace),
90 builder.getNamedAttr("global_memory_space",
91 globalMemorySpace == Attribute()
92 ? builder.getUI32IntegerAttr(0)
93 : globalMemorySpace),
94 builder.getNamedAttr("stack_alignment",
95 builder.getIndexAttr(stackAlignment)),
96 builder.getNamedAttr("function_pointer_alignment",
97 functionPointerAlignment == Attribute()
98 ? FunctionPointerAlignmentAttr::get(
99 builder.getContext(), 0,
100 /*function_dependent=*/false)
101 : functionPointerAlignment),
102 builder.getNamedAttr("legal_int_widths",
103 legalIntWidths == Attribute()
104 ? builder.getDenseI32ArrayAttr({})
105 : legalIntWidths)
106
107 });
108
109 });
110 }
111};
112} // namespace
113
114namespace mlir {
115namespace test {
116void registerTestDataLayoutQuery() { PassRegistration<TestDataLayoutQuery>(); }
117} // namespace test
118} // namespace mlir
119

source code of mlir/test/lib/Dialect/DLTI/TestDataLayoutQuery.cpp