[RS4GC] Use "deopt" operand bundles
[oota-llvm.git] / lib / Transforms / Scalar / ConstantProp.cpp
index d5a96eceb99330358d38b2efc0a2a05f4cbc9065..c974ebb9456f879c637accaab7322f7435535c3a 100644 (file)
 //
 //===----------------------------------------------------------------------===//
 
-#define DEBUG_TYPE "constprop"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/ConstantFolding.h"
 #include "llvm/IR/Constant.h"
-#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/InstIterator.h"
 #include "llvm/IR/Instruction.h"
 #include "llvm/Pass.h"
-#include "llvm/Support/InstIterator.h"
-#include "llvm/Target/TargetLibraryInfo.h"
+#include "llvm/Analysis/TargetLibraryInfo.h"
 #include <set>
 using namespace llvm;
 
+#define DEBUG_TYPE "constprop"
+
 STATISTIC(NumInstKilled, "Number of instructions killed");
 
 namespace {
@@ -40,11 +40,11 @@ namespace {
       initializeConstantPropagationPass(*PassRegistry::getPassRegistry());
     }
 
-    bool runOnFunction(Function &F);
+    bool runOnFunction(Function &F) override;
 
-    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    void getAnalysisUsage(AnalysisUsage &AU) const override {
       AU.setPreservesCFG();
-      AU.addRequired<TargetLibraryInfo>();
+      AU.addRequired<TargetLibraryInfoWrapperPass>();
     }
   };
 }
@@ -52,7 +52,7 @@ namespace {
 char ConstantPropagation::ID = 0;
 INITIALIZE_PASS_BEGIN(ConstantPropagation, "constprop",
                 "Simple constant propagation", false, false)
-INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfo)
+INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
 INITIALIZE_PASS_END(ConstantPropagation, "constprop",
                 "Simple constant propagation", false, false)
 
@@ -67,20 +67,20 @@ bool ConstantPropagation::runOnFunction(Function &F) {
       WorkList.insert(&*i);
   }
   bool Changed = false;
-  DataLayout *TD = getAnalysisIfAvailable<DataLayout>();
-  TargetLibraryInfo *TLI = &getAnalysis<TargetLibraryInfo>();
+  const DataLayout &DL = F.getParent()->getDataLayout();
+  TargetLibraryInfo *TLI =
+      &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
 
   while (!WorkList.empty()) {
     Instruction *I = *WorkList.begin();
     WorkList.erase(WorkList.begin());    // Get an element from the worklist...
 
     if (!I->use_empty())                 // Don't muck with dead instructions...
-      if (Constant *C = ConstantFoldInstruction(I, TD, TLI)) {
+      if (Constant *C = ConstantFoldInstruction(I, DL, TLI)) {
         // Add all of the users of this instruction to the worklist, they might
         // be constant propagatable now...
-        for (Value::use_iterator UI = I->use_begin(), UE = I->use_end();
-             UI != UE; ++UI)
-          WorkList.insert(cast<Instruction>(*UI));
+        for (User *U : I->users())
+          WorkList.insert(cast<Instruction>(U));
 
         // Replace all of the uses of a variable with uses of the constant.
         I->replaceAllUsesWith(C);