llvm/tools/llvm-reduce/deltas/ReduceGlobalObjects.cpp

   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
  14 static bool shouldReduceSection(GlobalObject &GO) { return GO.hasSection(); }
  15
  16 static bool shouldReduceAlign(GlobalObject &GO) {
  17   return GO.getAlign().has_value();
  18 }
  19
  20 static bool shouldReduceComdat(GlobalObject &GO) { return GO.hasComdat(); }
  21
  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
  33 void llvm::reduceGlobalObjectsDeltaPass(TestRunner &Test) {
  34   runDeltaPass(Test, reduceGOs, "Reducing GlobalObjects");
  35 }