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authorÖmer Sinan Ağacan <omeragacan@gmail.com>2016-02-08 16:18:23 -0500
committerÖmer Sinan Ağacan <omeragacan@gmail.com>2016-02-08 16:19:28 -0500
commit023fc92f6f98a8bd003ce20083d3682aec865cb5 (patch)
treeb08895d5e7575cfc29fa0a13e37df4445b93f6bc /compiler/codeGen/StgCmmExpr.hs
parent489a9a3beeeae3d150761ef863b4757eba0b02d9 (diff)
downloadhaskell-023fc92f6f98a8bd003ce20083d3682aec865cb5.tar.gz
Remove unused LiveVars and SRT fields of StgCase
We also need to update `stgBindHasCafRefs` assertion with this change, as we no longer have the pre-computed SRT, LiveVars etc. We rename it to `topStgBindHasCafRefs` and implement it like this: A non-updatable top-level binding may refer to a CAF by referring to a top-level definition with CAFs. A top-level definition may have CAFs if it's updatable. At this point (because this is done after TidyPgm) top-level Ids (whether imported or defined in this module) are GlobalIds, so the top-levelness test is easy. (see also comments in the code) Reviewers: bgamari, simonpj, austin Reviewed By: simonpj Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1889 GHC Trac Issues: #11550
Diffstat (limited to 'compiler/codeGen/StgCmmExpr.hs')
-rw-r--r--compiler/codeGen/StgCmmExpr.hs6
1 files changed, 3 insertions, 3 deletions
diff --git a/compiler/codeGen/StgCmmExpr.hs b/compiler/codeGen/StgCmmExpr.hs
index 923450e6f3..0f3898bf81 100644
--- a/compiler/codeGen/StgCmmExpr.hs
+++ b/compiler/codeGen/StgCmmExpr.hs
@@ -71,7 +71,7 @@ cgExpr (StgLit lit) = do cmm_lit <- cgLit lit
emitReturn [CmmLit cmm_lit]
cgExpr (StgLet binds expr) = do { cgBind binds; cgExpr expr }
-cgExpr (StgLetNoEscape _ _ binds expr) =
+cgExpr (StgLetNoEscape binds expr) =
do { u <- newUnique
; let join_id = mkBlockId u
; cgLneBinds join_id binds
@@ -79,7 +79,7 @@ cgExpr (StgLetNoEscape _ _ binds expr) =
; emitLabel join_id
; return r }
-cgExpr (StgCase expr _live_vars _save_vars bndr _srt alt_type alts) =
+cgExpr (StgCase expr bndr alt_type alts) =
cgCase expr bndr alt_type alts
cgExpr (StgLam {}) = panic "cgExpr: StgLam"
@@ -140,7 +140,7 @@ cgLetNoEscapeRhsBody
-> Id
-> StgRhs
-> FCode (CgIdInfo, FCode ())
-cgLetNoEscapeRhsBody local_cc bndr (StgRhsClosure cc _bi _ _upd _ args body)
+cgLetNoEscapeRhsBody local_cc bndr (StgRhsClosure cc _bi _ _upd args body)
= cgLetNoEscapeClosure bndr local_cc cc (nonVoidIds args) body
cgLetNoEscapeRhsBody local_cc bndr (StgRhsCon cc con args)
= cgLetNoEscapeClosure bndr local_cc cc [] (StgConApp con args)