aboutsummaryrefslogtreecommitdiff
path: root/lib/Transforms/Scalar/ADCE.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Transforms/Scalar/ADCE.cpp')
-rw-r--r--lib/Transforms/Scalar/ADCE.cpp14
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/Transforms/Scalar/ADCE.cpp b/lib/Transforms/Scalar/ADCE.cpp
index a3eb07a9f6d6..1a3a4aadce6a 100644
--- a/lib/Transforms/Scalar/ADCE.cpp
+++ b/lib/Transforms/Scalar/ADCE.cpp
@@ -14,20 +14,21 @@
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "adce"
#include "llvm/Transforms/Scalar.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"
-#include "llvm/Support/CFG.h"
-#include "llvm/Support/InstIterator.h"
using namespace llvm;
+#define DEBUG_TYPE "adce"
+
STATISTIC(NumRemoved, "Number of instructions removed");
namespace {
@@ -37,9 +38,9 @@ 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();
}
@@ -50,6 +51,9 @@ char ADCE::ID = 0;
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;