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| author | Simon Peyton Jones <simonpj@microsoft.com> | 2015-03-03 21:52:28 +0000 |
|---|---|---|
| committer | Simon Peyton Jones <simonpj@microsoft.com> | 2015-03-04 12:00:19 +0000 |
| commit | ee56dc56a4a0f556894c4d2bd04c3d4ca73e95a1 (patch) | |
| tree | 09c3e2e0a792437c5261220dacbca6bd05beb07c /compiler/coreSyn | |
| parent | e673b8408d84f9149f88964c3318059984eb7788 (diff) | |
| download | haskell-ee56dc56a4a0f556894c4d2bd04c3d4ca73e95a1.tar.gz | |
Tidy up and improve comments about one-shot info
(Triggered by investigating Trac #10102 etc.)
Diffstat (limited to 'compiler/coreSyn')
| -rw-r--r-- | compiler/coreSyn/CoreTidy.hs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/coreSyn/CoreTidy.hs b/compiler/coreSyn/CoreTidy.hs index 325950cf16..4ee867ad0a 100644 --- a/compiler/coreSyn/CoreTidy.hs +++ b/compiler/coreSyn/CoreTidy.hs @@ -258,12 +258,11 @@ but that seems more indirect and surprising.) Note [Preserve OneShotInfo] ~~~~~~~~~~~~~~~~~~~~~~~~~~~ - We keep the OneShotInfo because we want it to propagate into the interface. Not all OneShotInfo is determined by a compiler analysis; some is added by a call of GHC.Exts.oneShot, which is then discarded before the end of the optimisation pipeline, leaving only the OneShotInfo on the lambda. Hence we -must preserve this info in inlinings. +must preserve this info in inlinings. See Note [The oneShot function] in MkId. This applies to lambda binders only, hence it is stored in IfaceLamBndr. -} |