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authorBen Gamari <ben@smart-cactus.org>2022-02-22 21:28:45 -0500
committerMarge Bot <ben+marge-bot@smart-cactus.org>2022-02-25 21:12:09 -0500
commit948bf2d0ac28a367533523de59976c4b4b20db1c (patch)
treece0c0a18e6720d8d47f0f47cd5eec9049a0ea2e7
parentcddb040ac178ee0a996ac83baef48710bf88e5b2 (diff)
downloadhaskell-948bf2d0ac28a367533523de59976c4b4b20db1c.tar.gz
Fix comment reference to T4818
-rw-r--r--compiler/GHC/Core/Rules.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/GHC/Core/Rules.hs b/compiler/GHC/Core/Rules.hs
index 14bcd4564f..9a1db01c2a 100644
--- a/compiler/GHC/Core/Rules.hs
+++ b/compiler/GHC/Core/Rules.hs
@@ -1364,7 +1364,7 @@ There are a couple of tricky points.
f (let v = e1 in b1) (let v = e2 in b2)
--> NOT!
let v = e1 in let v = e2 in (f b2 b2)
- See testsuite test "RuleFloatLet".
+ See testsuite test "T4814".
Our cunning plan is this:
* Along with the growing substitution for template variables
@@ -1387,6 +1387,7 @@ Our cunning plan is this:
* We apply that freshening substitution, in a lexically-scoped
way to the term, although lazily; this is the rv_fltR field.
+See #4814, which is an issue resulting from getting this wrong.
Note [Matching cases]
~~~~~~~~~~~~~~~~~~~~~