diff options
Diffstat (limited to 'compiler/simplCore/SimplUtils.lhs')
| -rw-r--r-- | compiler/simplCore/SimplUtils.lhs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/simplCore/SimplUtils.lhs b/compiler/simplCore/SimplUtils.lhs index 4e40e31d9a..ab4937e8f3 100644 --- a/compiler/simplCore/SimplUtils.lhs +++ b/compiler/simplCore/SimplUtils.lhs @@ -1510,7 +1510,7 @@ prepareAlts tries these things: Here "cannot match" includes knowledge from GADTs -It's a good idea do do this stuff before simplifying the alternatives, to +It's a good idea to do this stuff before simplifying the alternatives, to avoid simplifying alternatives we know can't happen, and to come up with the list of constructors that are handled, to put into the IdInfo of the case binder, for use when simplifying the alternatives. |