#5814: LLVM 3.0 doesn't support llvm.memory.barrier
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Reporter: bgamari | Owner: dterei
Type: bug | Status: merge
Priority: normal | Component: Compiler (LLVM)
Version: 7.5 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Changes (by dterei):
* status: new => merge
Comment:
OK pushed patch + some improvements. I changed the fence to use the
strongest sync of seq_cst (sequentially consistent). I'm not sure if this
is too much and perhaps your use of acq_rel (acquire+release) would be
enough. Please check what actual machine code is generated by GHC and
maybe talk to Simon M.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5814#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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