llvm::SwitchInst

[oota-llvm.git] / lib / Transforms / Utils / LowerSwitch.cpp

diff --git a/lib/Transforms/Utils/LowerSwitch.cpp b/lib/Transforms/Utils/LowerSwitch.cpp
index 5530b4700aac60ec65faa1b8f62eee0721b41e10..a16130d3d74a33bf4c136401dd57ac09a6eebd95 100644 (file)
--- a/lib/Transforms/Utils/LowerSwitch.cpp
+++ b/lib/Transforms/Utils/LowerSwitch.cpp
@@ -33,7 +33,9 @@ namespace {
   class LowerSwitch : public FunctionPass {
   public:
     static char ID; // Pass identification, replacement for typeid
-    LowerSwitch() : FunctionPass(ID) {} 
+    LowerSwitch() : FunctionPass(ID) {
+      initializeLowerSwitchPass(*PassRegistry::getPassRegistry());
+    } 
 
     virtual bool runOnFunction(Function &F);
     
@@ -80,9 +82,9 @@ namespace {
 
 char LowerSwitch::ID = 0;
 INITIALIZE_PASS(LowerSwitch, "lowerswitch",
-                "Lower SwitchInst's to branches", false, false);
+                "Lower SwitchInst's to branches", false, false)
 
-// Publically exposed interface to pass...
+// Publicly exposed interface to pass...
 char &llvm::LowerSwitchID = LowerSwitch::ID;
 // createLowerSwitchPass - Interface to this file...
 FunctionPass *llvm::createLowerSwitchPass() {
@@ -107,7 +109,8 @@ bool LowerSwitch::runOnFunction(Function &F) {
 // operator<< - Used for debugging purposes.
 //
 static raw_ostream& operator<<(raw_ostream &O,
-                               const LowerSwitch::CaseVector &C) ATTRIBUTE_USED;
+                               const LowerSwitch::CaseVector &C)
+    LLVM_ATTRIBUTE_USED;
 static raw_ostream& operator<<(raw_ostream &O,
                                const LowerSwitch::CaseVector &C) {
   O << "[";
@@ -234,10 +237,10 @@ unsigned LowerSwitch::Clusterify(CaseVector& Cases, SwitchInst *SI) {
   unsigned numCmps = 0;
 
   // Start with "simple" cases
-  for (unsigned i = 1; i < SI->getNumSuccessors(); ++i)
-    Cases.push_back(CaseRange(SI->getSuccessorValue(i),
-                              SI->getSuccessorValue(i),
-                              SI->getSuccessor(i)));
+  for (SwitchInst::CaseIt i = SI->case_begin(), e = SI->case_end(); i != e; ++i)
+    Cases.push_back(CaseRange(i.getCaseValue(), i.getCaseValue(),
+                              i.getCaseSuccessor()));
+  
   std::sort(Cases.begin(), Cases.end(), CaseCmp());
 
   // Merge case into clusters
@@ -274,11 +277,11 @@ void LowerSwitch::processSwitchInst(SwitchInst *SI) {
   BasicBlock *CurBlock = SI->getParent();
   BasicBlock *OrigBlock = CurBlock;
   Function *F = CurBlock->getParent();
-  Value *Val = SI->getOperand(0);  // The value we are switching on...
+  Value *Val = SI->getCondition();  // The value we are switching on...
   BasicBlock* Default = SI->getDefaultDest();
 
   // If there is only the default destination, don't bother with the code below.
-  if (SI->getNumOperands() == 2) {
+  if (!SI->getNumCases()) {
     BranchInst::Create(SI->getDefaultDest(), CurBlock);
     CurBlock->getInstList().erase(SI);
     return;