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| author | Ömer Sinan Ağacan <omeragacan@gmail.com> | 2018-07-12 17:09:52 +0300 |
|---|---|---|
| committer | Ömer Sinan Ağacan <omeragacan@gmail.com> | 2018-07-12 17:10:08 +0300 |
| commit | 3efd7cd9bacc362b97a5c8b23994addaa614adda (patch) | |
| tree | f851f514d16385389b45e2e8322f4d97de72ebbb /compiler/cmm | |
| parent | 1c3536239cb5e83ff1427ac410d8fa2549e7d9c0 (diff) | |
| download | haskell-3efd7cd9bacc362b97a5c8b23994addaa614adda.tar.gz | |
Minor refactoring in CmmUtils.mkLiveness
Test Plan: validate
Reviewers: bgamari, simonmar
Reviewed By: simonmar
Subscribers: rwbarton, thomie, carter
Differential Revision: https://phabricator.haskell.org/D4957
Diffstat (limited to 'compiler/cmm')
| -rw-r--r-- | compiler/cmm/CmmParse.y | 2 | ||||
| -rw-r--r-- | compiler/cmm/CmmUtils.hs | 19 |
2 files changed, 9 insertions, 12 deletions
diff --git a/compiler/cmm/CmmParse.y b/compiler/cmm/CmmParse.y index 4d7e288381..8cc988383e 100644 --- a/compiler/cmm/CmmParse.y +++ b/compiler/cmm/CmmParse.y @@ -542,7 +542,7 @@ info :: { CmmParse (CLabel, Maybe CmmInfoTable, [LocalReg]) } live <- sequence $7 let prof = NoProfilingInfo -- drop one for the info pointer - bitmap = mkLiveness dflags (map Just (drop 1 live)) + bitmap = mkLiveness dflags (drop 1 live) rep = mkRTSRep (fromIntegral $5) $ mkStackRep bitmap return (mkCmmRetLabel pkg $3, Just $ CmmInfoTable { cit_lbl = mkCmmRetInfoLabel pkg $3 diff --git a/compiler/cmm/CmmUtils.hs b/compiler/cmm/CmmUtils.hs index 1ae5526074..42d64842e2 100644 --- a/compiler/cmm/CmmUtils.hs +++ b/compiler/cmm/CmmUtils.hs @@ -456,20 +456,17 @@ regUsedIn dflags = regUsedIn_ where -- --------------------------------------------- -mkLiveness :: DynFlags -> [Maybe LocalReg] -> Liveness +mkLiveness :: DynFlags -> [LocalReg] -> Liveness mkLiveness _ [] = [] mkLiveness dflags (reg:regs) - = take sizeW bits ++ mkLiveness dflags regs + = bits ++ mkLiveness dflags regs where - sizeW = case reg of - Nothing -> 1 - Just r -> (widthInBytes (typeWidth (localRegType r)) + wORD_SIZE dflags - 1) - `quot` wORD_SIZE dflags - -- number of words, rounded up - bits = repeat $ is_non_ptr reg -- True <=> Non Ptr - - is_non_ptr Nothing = True - is_non_ptr (Just reg) = not $ isGcPtrType (localRegType reg) + sizeW = (widthInBytes (typeWidth (localRegType reg)) + wORD_SIZE dflags - 1) + `quot` wORD_SIZE dflags + -- number of words, rounded up + bits = replicate sizeW is_non_ptr -- True <=> Non Ptr + + is_non_ptr = not $ isGcPtrType (localRegType reg) -- ============================================== - |