1//===- ReduceGlobalObjects.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 "ReduceGlobalObjects.h"
10#include "llvm/IR/GlobalObject.h"
11
12using namespace llvm;
13
14static bool shouldReduceSection(GlobalObject &GO) { return GO.hasSection(); }
15
16static bool shouldReduceAlign(GlobalVariable *GV) {
17 return GV->getAlign().has_value();
18}
19
20static bool shouldReduceAlign(Function *F) { return F->getAlign().has_value(); }
21
22static bool shouldReduceComdat(GlobalObject &GO) { return GO.hasComdat(); }
23
24void llvm::reduceGlobalObjectsDeltaPass(Oracle &O, ReducerWorkItem &Program) {
25 for (auto &GO : Program.getModule().global_objects()) {
26 if (shouldReduceSection(GO) && !O.shouldKeep())
27 GO.setSection("");
28 if (auto *GV = dyn_cast<GlobalVariable>(Val: &GO)) {
29 if (shouldReduceAlign(GV) && !O.shouldKeep())
30 GV->setAlignment(MaybeAlign());
31 }
32 if (auto *F = dyn_cast<Function>(Val: &GO)) {
33 if (shouldReduceAlign(F) && !O.shouldKeep())
34 F->setAlignment(MaybeAlign());
35 }
36 if (shouldReduceComdat(GO) && !O.shouldKeep())
37 GO.setComdat(nullptr);
38 }
39}
40