//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "adce"
#include "llvm/Transforms/Scalar.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/Instructions.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/Pass.h"
-#include "llvm/Support/CFG.h"
-#include "llvm/Support/InstIterator.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
+#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/CFG.h"
+#include "llvm/IR/InstIterator.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/Pass.h"
using namespace llvm;
+#define DEBUG_TYPE "adce"
+
STATISTIC(NumRemoved, "Number of instructions removed");
namespace {
initializeADCEPass(*PassRegistry::getPassRegistry());
}
- virtual bool runOnFunction(Function& F);
+ bool runOnFunction(Function& F) override;
- virtual void getAnalysisUsage(AnalysisUsage& AU) const {
+ void getAnalysisUsage(AnalysisUsage& AU) const override {
AU.setPreservesCFG();
}
INITIALIZE_PASS(ADCE, "adce", "Aggressive Dead Code Elimination", false, false)
bool ADCE::runOnFunction(Function& F) {
+ if (skipOptnoneFunction(F))
+ return false;
+
SmallPtrSet<Instruction*, 128> alive;
SmallVector<Instruction*, 128> worklist;
I->dropAllReferences();
}
- for (SmallVector<Instruction*, 1024>::iterator I = worklist.begin(),
+ for (SmallVectorImpl<Instruction *>::iterator I = worklist.begin(),
E = worklist.end(); I != E; ++I) {
++NumRemoved;
(*I)->eraseFromParent();