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| author | Geoffrey Mainland <mainland@apeiron.net> | 2012-11-15 10:16:29 +0000 |
|---|---|---|
| committer | Geoffrey Mainland <gmainlan@microsoft.com> | 2013-02-01 22:00:24 +0000 |
| commit | cc56f34e71201e27e4e15af01a5a6258648d6a32 (patch) | |
| tree | ed74568b892c8bf7466387424b4882e7379b68b0 /compiler/cmm | |
| parent | 089ac7171bee938bd52975d2f828cf0dd6b4b25b (diff) | |
| download | haskell-cc56f34e71201e27e4e15af01a5a6258648d6a32.tar.gz | |
Add prefetch primops.
Diffstat (limited to 'compiler/cmm')
| -rw-r--r-- | compiler/cmm/CmmMachOp.hs | 4 | ||||
| -rw-r--r-- | compiler/cmm/PprC.hs | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/compiler/cmm/CmmMachOp.hs b/compiler/cmm/CmmMachOp.hs index 0f18029d20..fae84e5d53 100644 --- a/compiler/cmm/CmmMachOp.hs +++ b/compiler/cmm/CmmMachOp.hs @@ -517,6 +517,10 @@ data CallishMachOp | MO_WriteBarrier | MO_Touch -- Keep variables live (when using interior pointers) + -- Prefetch + | MO_Prefetch_Data -- Prefetch hint. May change program performance but not + -- program behavior. + -- Note that these three MachOps all take 1 extra parameter than the -- standard C lib versions. The extra (last) parameter contains -- alignment of the pointers. Used for optimisation in backends. diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs index cda68ef39e..45c415f35a 100644 --- a/compiler/cmm/PprC.hs +++ b/compiler/cmm/PprC.hs @@ -759,6 +759,7 @@ pprCallishMachOp_for_C mop MO_Add2 {} -> unsupported MO_U_Mul2 {} -> unsupported MO_Touch -> unsupported + MO_Prefetch_Data -> unsupported where unsupported = panic ("pprCallishMachOp_for_C: " ++ show mop ++ " not supported!") |