1 //===- StripDebugInfo.cpp - Pass to strip debug information ---------------===//
2 //
3 // Copyright 2019 The MLIR Authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 //   http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 // =============================================================================
17 
18 #include "mlir/IR/Function.h"
19 #include "mlir/IR/Instruction.h"
20 #include "mlir/Pass/Pass.h"
21 #include "mlir/Transforms/Passes.h"
22 
23 using namespace mlir;
24 
25 namespace {
26 struct StripDebugInfo : public FunctionPass {
27   StripDebugInfo() : FunctionPass(&StripDebugInfo::passID) {}
28 
29   PassResult runOnFunction(Function *f) override;
30 
31   constexpr static PassID passID = {};
32 };
33 } // end anonymous namespace
34 
35 PassResult StripDebugInfo::runOnFunction(Function *f) {
36   UnknownLoc unknownLoc = UnknownLoc::get(f->getContext());
37 
38   // Strip the debug info from the function and its instructions.
39   f->setLoc(unknownLoc);
40   f->walk([&](Instruction *inst) { inst->setLoc(unknownLoc); });
41   return success();
42 }
43 
44 /// Creates a pass to strip debug information from a function.
45 FunctionPass *mlir::createStripDebugInfoPass() { return new StripDebugInfo(); }
46 
47 static PassRegistration<StripDebugInfo>
48     pass("strip-debuginfo", "Strip debug info from functions and instructions");
49