xref: /llvm-project/llvm/tools/llvm-reduce/deltas/ReduceGlobalObjects.cpp (revision 23cc36e4765912a1bcdbbc3fb8b0976a06dea043) 
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 
12 using namespace llvm;
13 
shouldReduceSection(GlobalObject & GO)14 static bool shouldReduceSection(GlobalObject &GO) { return GO.hasSection(); }
15 
shouldReduceAlign(GlobalObject & GO)16 static bool shouldReduceAlign(GlobalObject &GO) {
17   return GO.getAlign().has_value();
18 }
19 
shouldReduceComdat(GlobalObject & GO)20 static bool shouldReduceComdat(GlobalObject &GO) { return GO.hasComdat(); }
21 
reduceGOs(Oracle & O,ReducerWorkItem & Program)22 static void reduceGOs(Oracle &O, ReducerWorkItem &Program) {
23   for (auto &GO : Program.getModule().global_objects()) {
24     if (shouldReduceSection(GO) && !O.shouldKeep())
25       GO.setSection("");
26     if (shouldReduceAlign(GO) && !O.shouldKeep())
27       GO.setAlignment(MaybeAlign());
28     if (shouldReduceComdat(GO) && !O.shouldKeep())
29       GO.setComdat(nullptr);
30   }
31 }
32 
reduceGlobalObjectsDeltaPass(TestRunner & Test)33 void llvm::reduceGlobalObjectsDeltaPass(TestRunner &Test) {
34   runDeltaPass(Test, reduceGOs, "Reducing GlobalObjects");
35 }
36