[GHC] #5218: Add unpackCStringLen# to create Strings from string literals
GHC
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Fri Apr 7 06:24:07 UTC 2017
#5218: Add unpackCStringLen# to create Strings from string literals
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Reporter: tibbe | Owner: thoughtpolice
Type: feature request | Status: patch
Priority: normal | Milestone:
Component: Compiler | Version: 7.0.3
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
Type of failure: Runtime | Unknown/Multiple
performance bug | Test Case:
Blocked By: | Blocking:
Related Tickets: #5877 #10064 | Differential Rev(s): Phab:D2443
Wiki Page: |
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Comment (by winter):
> This would essentially amount to making `ByteArray#` a sum internally.
You would simply add a closure type which would carry a pointer to the
payload instead of the VLA carried by `StgArrBytes` currently.
I'm not an expert on this, so maybe this sounds ridiculous: If we add a
new closure type for `ByteArray#`, could it be used in runtime also?
--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5218#comment:65>
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