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| author | Matthew Pickering <matthewtpickering@gmail.com> | 2022-01-17 16:59:52 +0000 |
|---|---|---|
| committer | Matthew Pickering <matthewtpickering@gmail.com> | 2022-01-17 17:52:54 +0000 |
| commit | 12c7a860642225d206f7172e3f4e7cf0001cb8dd (patch) | |
| tree | 21d4ffee8c85175a96a76ff78688905aa8ad7b0a | |
| parent | a13aff98cfccddee285b6550dd08c6ec1a3c4e17 (diff) | |
| download | haskell-wip/heap-invariant.tar.gz | |
Add note about heap invariantwip/heap-invariant
Closed #20904
| -rw-r--r-- | compiler/GHC/Driver/Make.hs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/compiler/GHC/Driver/Make.hs b/compiler/GHC/Driver/Make.hs index afeec69c8e..fb823e842f 100644 --- a/compiler/GHC/Driver/Make.hs +++ b/compiler/GHC/Driver/Make.hs @@ -2663,4 +2663,10 @@ which can be checked easily using ghc-debug. as it should be as we retain a copy of the ModDetails for too long. Where? pruneCache in GHC.Driver.Make +4. No TcGblEnv or TcLclEnv are live after typechecking is completed. + Why? By the time we get to simplification all the data structures from typechecking + should be eliminated. + Where? No one place in the compiler. These leaks can be introduced by not suitable + forcing functions which take a TcLclEnv as an argument. + -} |