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| author | Daniel Gröber <dxld@darkboxed.org> | 2020-02-10 14:19:21 +0100 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2020-07-22 20:18:11 -0400 |
| commit | 8336ba78e00ec42521ba8314bc65ec766e6bcc7d (patch) | |
| tree | 6afd917e80c2efface0e561a1f3673d9fda47f5d /compiler/GHC/Data/StringBuffer.hs | |
| parent | 1010c33bb8704fa55a82bc2601d5cae2e6ecc21f (diff) | |
| download | haskell-8336ba78e00ec42521ba8314bc65ec766e6bcc7d.tar.gz | |
Pass specialised utf8DecodeChar# to utf8DecodeLazy# for performance
Currently we're passing a indexWord8OffAddr# type function to
utf8DecodeLazy# which then passes it on to utf8DecodeChar#. By passing one
of utf8DecodeCharAddr# or utf8DecodeCharByteArray# instead we benefit from
the inlining and specialization already done for those.
Diffstat (limited to 'compiler/GHC/Data/StringBuffer.hs')
| -rw-r--r-- | compiler/GHC/Data/StringBuffer.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Data/StringBuffer.hs b/compiler/GHC/Data/StringBuffer.hs index daf599d5e7..11ddfe47bc 100644 --- a/compiler/GHC/Data/StringBuffer.hs +++ b/compiler/GHC/Data/StringBuffer.hs @@ -200,7 +200,7 @@ nextChar (StringBuffer buf len (I# cur#)) = -- Getting our fingers dirty a little here, but this is performance-critical inlinePerformIO $ do withForeignPtr buf $ \(Ptr a#) -> do - case utf8DecodeCharAddr# (a# `plusAddr#` cur#) of + case utf8DecodeCharAddr# (a# `plusAddr#` cur#) 0# of (# c#, nBytes# #) -> let cur' = I# (cur# +# nBytes#) in return (C# c#, StringBuffer buf len cur') |