[PATCH] D68827: [DDG] Data Dependence Graph - Pi Block

Michael Kruse via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 1 13:04:46 PDT 2019


Meinersbur added inline comments.


================
Comment at: llvm/include/llvm/ADT/EnumeratedArray.h:21
+template <typename ValueType, typename Enumeration,
+          Enumeration LargestEnum = Enumeration::Count,
+          typename IndexType = int,
----------------
Thanks a lot!

Could we change `Enumeration::Count` to `Enumaration::Last`? The reason is that `::Count` introduces a new element that compilers warn about if unhanded in switch statements. That is, instead of
```
  enum class E {
    One,
    Two,
    Count
  };

  switch (e) {
  case E::One:
  case E::Two:
    break;
  }
```
`warning: enumerator 'E::Count' in switch of enum 'E' is not handled`

use 

```
  enum class E {
    One,
    Two,
    Last = Two
  };

  switch (e) {
  case E::One:
  case E::Two:
    break;
  }
```


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68827/new/

https://reviews.llvm.org/D68827





More information about the llvm-commits mailing list