[TI removal] Switch some newly added code over to use `Instruction`

directly.

llvm-svn: 344768

llvm/include/llvm/Analysis/DivergenceAnalysis.h

@@ -80,7 +80,7 @@ public:
   void print(raw_ostream &OS, const Module *) const;
 
 private:
-  bool updateTerminator(const TerminatorInst &Term) const;
+  bool updateTerminator(const Instruction &Term) const;
   bool updatePHINode(const PHINode &Phi) const;
 
   /// \brief Computes whether \p Inst is divergent based on the
@@ -135,7 +135,7 @@ private:
 
   /// \brief Propagate induced value divergence due to control divergence in \p
   /// Term.
-  void propagateBranchDivergence(const TerminatorInst &Term);
+  void propagateBranchDivergence(const Instruction &Term);
 
   /// \brief Propagate divergent caused by a divergent loop exit.
   ///

llvm/include/llvm/Analysis/SyncDependenceAnalysis.h

@@ -29,8 +29,6 @@ class BasicBlock;
 class DominatorTree;
 class Loop;
 class PostDominatorTree;
-class TerminatorInst;
-class TerminatorInst;
 
 using ConstBlockSet = SmallPtrSet<const BasicBlock *, 4>;
 
@@ -59,7 +57,7 @@ public:
   /// header. Those exit blocks are added to the returned set.
   /// If L is the parent loop of \p Term and an exit of L is in the returned
   /// set then L is a divergent loop.
-  const ConstBlockSet &join_blocks(const TerminatorInst &Term);
+  const ConstBlockSet &join_blocks(const Instruction &Term);
 
   /// \brief Computes divergent join points and loop exits (in the surrounding
   /// loop) caused by the divergent loop exits of\p Loop.
@@ -79,7 +77,7 @@ private:
   const LoopInfo &LI;
 
   std::map<const Loop *, std::unique_ptr<ConstBlockSet>> CachedLoopExitJoins;
-  std::map<const TerminatorInst *, std::unique_ptr<ConstBlockSet>>
+  std::map<const Instruction *, std::unique_ptr<ConstBlockSet>>
       CachedBranchJoins;
 };
 

llvm/lib/Analysis/DivergenceAnalysis.cpp

@@ -108,7 +108,7 @@ void DivergenceAnalysis::addUniformOverride(const Value &UniVal) {
   UniformOverrides.insert(&UniVal);
 }
 
-bool DivergenceAnalysis::updateTerminator(const TerminatorInst &Term) const {
+bool DivergenceAnalysis::updateTerminator(const Instruction &Term) const {
   if (Term.getNumSuccessors() <= 1)
     return false;
   if (auto *BranchTerm = dyn_cast<BranchInst>(&Term)) {
@@ -297,7 +297,7 @@ bool DivergenceAnalysis::propagateJoinDivergence(const BasicBlock &JoinBlock,
   return false;
 }
 
-void DivergenceAnalysis::propagateBranchDivergence(const TerminatorInst &Term) {
+void DivergenceAnalysis::propagateBranchDivergence(const Instruction &Term) {
   LLVM_DEBUG(dbgs() << "propBranchDiv " << Term.getParent()->getName() << "\n");
 
   markDivergent(Term);
@@ -380,11 +380,10 @@ void DivergenceAnalysis::compute() {
       continue;
 
     // propagate divergence caused by terminator
-    if (isa<TerminatorInst>(I)) {
-      auto &Term = cast<TerminatorInst>(I);
-      if (updateTerminator(Term)) {
+    if (I.isTerminator()) {
+      if (updateTerminator(I)) {
         // propagate control divergence to affected instructions
-        propagateBranchDivergence(Term);
+        propagateBranchDivergence(I);
         continue;
       }
     }

llvm/lib/Analysis/SyncDependenceAnalysis.cpp

@@ -208,7 +208,7 @@ struct DivergencePropagator {
   }
 
   // find all blocks reachable by two disjoint paths from @rootTerm.
-  // This method works for both divergent TerminatorInsts and loops with
+  // This method works for both divergent terminators and loops with
   // divergent exits.
   // @rootBlock is either the block containing the branch or the header of the
   // divergent loop.
@@ -355,7 +355,7 @@ const ConstBlockSet &SyncDependenceAnalysis::join_blocks(const Loop &Loop) {
 }
 
 const ConstBlockSet &
-SyncDependenceAnalysis::join_blocks(const TerminatorInst &Term) {
+SyncDependenceAnalysis::join_blocks(const Instruction &Term) {
   // trivial case
   if (Term.getNumSuccessors() < 1) {
     return EmptyBlockSet;