r240214 fixed some UB in IndVarSimplify, and it needed a temporary
`WeakVH` to do it. Add `simplify_type<const WeakVH>` so that this
temporary isn't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240599
91177308-0d34-0410-b5e6-
96231b3b80d8
// Specialize simplify_type to allow WeakVH to participate in
// dyn_cast, isa, etc.
-template<> struct simplify_type<WeakVH> {
- typedef Value* SimpleType;
- static SimpleType getSimplifiedValue(WeakVH &WVH) {
- return WVH;
- }
+template <> struct simplify_type<WeakVH> {
+ typedef Value *SimpleType;
+ static SimpleType getSimplifiedValue(WeakVH &WVH) { return WVH; }
+};
+template <> struct simplify_type<const WeakVH> {
+ typedef Value *SimpleType;
+ static SimpleType getSimplifiedValue(const WeakVH &WVH) { return WVH; }
};
/// \brief Value handle that asserts if the Value is deleted.
// Now that we're done iterating through lists, clean up any instructions
// which are now dead.
- while (!DeadInsts.empty()) {
- Value *V = static_cast<Value *>(DeadInsts.pop_back_val());
- if (Instruction *Inst = dyn_cast_or_null<Instruction>(V))
+ while (!DeadInsts.empty())
+ if (Instruction *Inst =
+ dyn_cast_or_null<Instruction>(DeadInsts.pop_back_val()))
RecursivelyDeleteTriviallyDeadInstructions(Inst, TLI);
- }
// The Rewriter may not be used from this point on.