//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "loop-instsimplify"
#include "llvm/Transforms/Scalar.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Transforms/Utils/Local.h"
using namespace llvm;
+#define DEBUG_TYPE "loop-instsimplify"
+
STATISTIC(NumSimplified, "Number of redundant instructions simplified");
namespace {
initializeLoopInstSimplifyPass(*PassRegistry::getPassRegistry());
}
- bool runOnLoop(Loop*, LPPassManager&);
+ bool runOnLoop(Loop*, LPPassManager&) override;
- virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<LoopInfo>();
AU.addRequiredID(LoopSimplifyID);
DominatorTreeWrapperPass *DTWP =
getAnalysisIfAvailable<DominatorTreeWrapperPass>();
- DominatorTree *DT = DTWP ? &DTWP->getDomTree() : 0;
+ DominatorTree *DT = DTWP ? &DTWP->getDomTree() : nullptr;
LoopInfo *LI = &getAnalysis<LoopInfo>();
- const DataLayout *TD = getAnalysisIfAvailable<DataLayout>();
+ DataLayoutPass *DLP = getAnalysisIfAvailable<DataLayoutPass>();
+ const DataLayout *DL = DLP ? &DLP->getDataLayout() : nullptr;
const TargetLibraryInfo *TLI = &getAnalysis<TargetLibraryInfo>();
SmallVector<BasicBlock*, 8> ExitBlocks;
// Don't bother simplifying unused instructions.
if (!I->use_empty()) {
- Value *V = SimplifyInstruction(I, TD, TLI, DT);
+ Value *V = SimplifyInstruction(I, DL, TLI, DT);
if (V && LI->replacementPreservesLCSSAForm(I, V)) {
// Mark all uses for resimplification next time round the loop.
- for (Value::use_iterator UI = I->use_begin(), UE = I->use_end();
- UI != UE; ++UI)
- Next->insert(cast<Instruction>(*UI));
+ for (User *U : I->users())
+ Next->insert(cast<Instruction>(U));
I->replaceAllUsesWith(V);
LocalChanged = true;