1 | //===-- Optimizer/Support/DataLayout.cpp ----------------------------------===// |
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 "flang/Optimizer/Support/DataLayout.h" |
10 | #include "flang/Optimizer/Dialect/Support/FIRContext.h" |
11 | #include "flang/Optimizer/Support/FatalError.h" |
12 | #include "mlir/Dialect/DLTI/DLTI.h" |
13 | #include "mlir/Dialect/LLVMIR/LLVMDialect.h" |
14 | #include "mlir/IR/BuiltinOps.h" |
15 | #include "mlir/Interfaces/DataLayoutInterfaces.h" |
16 | #include "mlir/Support/LLVM.h" |
17 | #include "mlir/Target/LLVMIR/Import.h" |
18 | #include "llvm/IR/DataLayout.h" |
19 | #include "llvm/MC/TargetRegistry.h" |
20 | #include "llvm/Support/TargetSelect.h" |
21 | #include "llvm/Target/TargetMachine.h" |
22 | |
23 | void fir::support::setMLIRDataLayout(mlir::ModuleOp mlirModule, |
24 | const llvm::DataLayout &dl) { |
25 | mlir::MLIRContext *context = mlirModule.getContext(); |
26 | mlirModule->setAttr( |
27 | mlir::LLVM::LLVMDialect::getDataLayoutAttrName(), |
28 | mlir::StringAttr::get(context, dl.getStringRepresentation())); |
29 | mlir::DataLayoutSpecInterface dlSpec = mlir::translateDataLayout(dl, context); |
30 | mlirModule->setAttr(mlir::DLTIDialect::kDataLayoutAttrName, dlSpec); |
31 | } |
32 | |
33 | void fir::support::setMLIRDataLayoutFromAttributes(mlir::ModuleOp mlirModule, |
34 | bool allowDefaultLayout) { |
35 | if (mlirModule.getDataLayoutSpec()) |
36 | return; // Already set. |
37 | if (auto dataLayoutString = mlirModule->getAttrOfType<mlir::StringAttr>( |
38 | mlir::LLVM::LLVMDialect::getDataLayoutAttrName())) { |
39 | llvm::DataLayout llvmDataLayout(dataLayoutString); |
40 | fir::support::setMLIRDataLayout(mlirModule, llvmDataLayout); |
41 | return; |
42 | } |
43 | if (!allowDefaultLayout) |
44 | return; |
45 | llvm::DataLayout llvmDataLayout("" ); |
46 | fir::support::setMLIRDataLayout(mlirModule, llvmDataLayout); |
47 | } |
48 | |
49 | std::optional<mlir::DataLayout> |
50 | fir::support::getOrSetDataLayout(mlir::ModuleOp mlirModule, |
51 | bool allowDefaultLayout) { |
52 | if (!mlirModule.getDataLayoutSpec()) { |
53 | fir::support::setMLIRDataLayoutFromAttributes(mlirModule, |
54 | allowDefaultLayout); |
55 | if (!mlirModule.getDataLayoutSpec()) { |
56 | return std::nullopt; |
57 | } |
58 | } |
59 | return mlir::DataLayout(mlirModule); |
60 | } |
61 | |