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| author | nineonine <mail4chemik@gmail.com> | 2022-03-13 11:23:42 -0700 |
|---|---|---|
| committer | Andreas Klebinger <klebinger.andreas@gmx.at> | 2022-03-15 13:12:04 +0000 |
| commit | 68af4769e2c67d0585e5afeb7daeec023c416d88 (patch) | |
| tree | bcc5990b9e39176e6d828b7181547f7449a7afca | |
| parent | 8ff32124c8cd37050f3dc7cbb32b8d41711ebcaf (diff) | |
| download | haskell-wip/T21084.tar.gz | |
codeGen: not sink global assignments (#21084)wip/T21084
| -rw-r--r-- | compiler/GHC/Cmm/Sink.hs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/GHC/Cmm/Sink.hs b/compiler/GHC/Cmm/Sink.hs index 84f9317f21..b572aeaa0a 100644 --- a/compiler/GHC/Cmm/Sink.hs +++ b/compiler/GHC/Cmm/Sink.hs @@ -384,8 +384,12 @@ cmm_sink_sp. -- liveness analysis doesn't track those (yet) so we can't. -- shouldSink :: Platform -> CmmNode e x -> Maybe Assignment -shouldSink platform (CmmAssign (CmmLocal r) e) | no_local_regs = Just (r, e, exprMem platform e) +shouldSink platform (CmmAssign var e) | is_renamed_global var = Nothing + | (CmmLocal r) <- var + , no_local_regs = Just (r, e, exprMem platform e) where no_local_regs = True -- foldRegsUsed (\_ _ -> False) True e + is_renamed_global (CmmGlobal {}) = True + is_renamed_global _ = False shouldSink _ _other = Nothing -- |