[mlir] Add [[lifetimebound]] to Range classes. (#123091)

This prevents creating range class instances from temporaries.

Author: chsigg

mlir/include/mlir/IR/BlockSupport.h

@@ -110,9 +110,9 @@ class BlockRange final
   BlockRange(SuccessorRange successors);
   template <typename Arg, typename = std::enable_if_t<std::is_constructible<
                               ArrayRef<Block *>, Arg>::value>>
-  BlockRange(Arg &&arg)
+  BlockRange(Arg &&arg LLVM_LIFETIME_BOUND)
       : BlockRange(ArrayRef<Block *>(std::forward<Arg>(arg))) {}
-  BlockRange(std::initializer_list<Block *> blocks)
+  BlockRange(std::initializer_list<Block *> blocks LLVM_LIFETIME_BOUND)
       : BlockRange(ArrayRef<Block *>(blocks)) {}
 
 private:

mlir/include/mlir/IR/Region.h

@@ -357,12 +357,12 @@ class RegionRange
 
   template <typename Arg, typename = std::enable_if_t<std::is_constructible<
                               ArrayRef<std::unique_ptr<Region>>, Arg>::value>>
-  RegionRange(Arg &&arg)
+  RegionRange(Arg &&arg LLVM_LIFETIME_BOUND)
       : RegionRange(ArrayRef<std::unique_ptr<Region>>(std::forward<Arg>(arg))) {
   }
   template <typename Arg>
   RegionRange(
-      Arg &&arg,
+      Arg &&arg LLVM_LIFETIME_BOUND,
       std::enable_if_t<std::is_constructible<ArrayRef<Region *>, Arg>::value>
           * = nullptr)
       : RegionRange(ArrayRef<Region *>(std::forward<Arg>(arg))) {}

mlir/include/mlir/IR/TypeRange.h

@@ -46,8 +46,9 @@ class TypeRange : public llvm::detail::indexed_accessor_range_base<
                                          values.end().getCurrent()))) {}
   template <typename Arg, typename = std::enable_if_t<std::is_constructible<
                               ArrayRef<Type>, Arg>::value>>
-  TypeRange(Arg &&arg) : TypeRange(ArrayRef<Type>(std::forward<Arg>(arg))) {}
-  TypeRange(std::initializer_list<Type> types)
+  TypeRange(Arg &&arg LLVM_LIFETIME_BOUND)
+      : TypeRange(ArrayRef<Type>(std::forward<Arg>(arg))) {}
+  TypeRange(std::initializer_list<Type> types LLVM_LIFETIME_BOUND)
       : TypeRange(ArrayRef<Type>(types)) {}
 
 private:

mlir/include/mlir/IR/ValueRange.h

@@ -391,9 +391,11 @@ class ValueRange final
             typename = std::enable_if_t<
                 std::is_constructible<ArrayRef<Value>, Arg>::value &&
                 !std::is_convertible<Arg, Value>::value>>
-  ValueRange(Arg &&arg) : ValueRange(ArrayRef<Value>(std::forward<Arg>(arg))) {}
-  ValueRange(const Value &value) : ValueRange(&value, /*count=*/1) {}
-  ValueRange(const std::initializer_list<Value> &values)
+  ValueRange(Arg &&arg LLVM_LIFETIME_BOUND)
+      : ValueRange(ArrayRef<Value>(std::forward<Arg>(arg))) {}
+  ValueRange(const Value &value LLVM_LIFETIME_BOUND)
+      : ValueRange(&value, /*count=*/1) {}
+  ValueRange(const std::initializer_list<Value> &values LLVM_LIFETIME_BOUND)
       : ValueRange(ArrayRef<Value>(values)) {}
   ValueRange(iterator_range<OperandRange::iterator> values)
       : ValueRange(OperandRange(values)) {}