1 //===- StripDebugInfo.cpp - Pass to strip debug information ---------------===//
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 "PassDetail.h"
10 #include "mlir/IR/BuiltinOps.h"
11 #include "mlir/IR/Operation.h"
12 #include "mlir/Pass/Pass.h"
13 #include "mlir/Transforms/Passes.h"
14 
15 using namespace mlir;
16 
17 namespace {
18 struct StripDebugInfo : public StripDebugInfoBase<StripDebugInfo> {
19   void runOnOperation() override;
20 };
21 } // namespace
22 
23 void StripDebugInfo::runOnOperation() {
24   auto unknownLoc = UnknownLoc::get(&getContext());
25 
26   // Strip the debug info from all operations.
27   getOperation()->walk([&](Operation *op) {
28     op->setLoc(unknownLoc);
29     // Strip block arguments debug info.
30     for (Region &region : op->getRegions()) {
31       for (Block &block : region.getBlocks()) {
32         for (BlockArgument &arg : block.getArguments()) {
33           arg.setLoc(unknownLoc);
34         }
35       }
36     }
37   });
38 }
39 
40 /// Creates a pass to strip debug information from a function.
41 std::unique_ptr<Pass> mlir::createStripDebugInfoPass() {
42   return std::make_unique<StripDebugInfo>();
43 }
44