#2753: GHC 6.10.1 cannot compile Crypto-4.1.0
------------------------------+---------------------------------------------
Reporter: thoughtpolice | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.10.2
Component: Compiler | Version: 6.10.1
Severity: critical | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: Unknown/Multiple
Os: Unknown/Multiple |
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Changes (by simonmar):
* difficulty: => Unknown
* os: MacOS X => Unknown/Multiple
* milestone: => 6.10.2
Comment:
I don't think it was ever fixed, it may have just stopped happening for a
while for unrelated reasons.
The problem is that the spill code in the linear register allocator is
pretty stupid and doesn't try to re-use spill slots. Also, we only have a
fixed number of spill slots, because we have a fixed-size frame on the C
stack in which to spill into, which is currently 2048 words. We could
certainly bump the size of this without any serious adverse effects
(`includes/Constants.h`, `RESERVED_C_STACK_BYTES`). I suggest that as a
workaround for 6.10.2.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2753#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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