hi ghc group,
I'm developing a small compiler for an experimental
language for image generation, and i tried the profiling
option to analyse where all the memory is used, and
then the impossible occured:
here is the listing:
----------------------
si(4):~:39> cd tmp
si(4):~/tmp:40> tar xvzf bug.tgz
pl0/AbstractSyntax.hs
pl0/Assemble.hs
pl0/BuildinFunctions.hs
pl0/BuiltinFunctions.hs
pl0/CodeGeneration.hs
pl0/ControlUnit.hs
pl0/Error.hs
pl0/GlobalState.hs
pl0/Instructions.hs
pl0/Lexer.hs
pl0/Loader.hs
pl0/MachineArchitecture.hs
pl0/MachineStructure.hs
pl0/Main.hs
pl0/Matrix.hs
pl0/MicroCode.hs
pl0/NTree.hs
pl0/OPCode.hs
pl0/PPLInterpreter.hs
pl0/Parser.hs
pl0/Picture.hs
pl0/Ppm.hs
pl0/SemanticAnalysis.hs
pl0/ShowAbstractSyntaxTree.hs
pl0/ShowAttrTree.hs
pl0/ShowCode.hs
pl0/ShowJavaCode.hs
pl0/ShowMS.hs
pl0/StateTrans.hs
pl0/Symbol.hs
pl0/TestNTree.hs
pl0/t.hs
pl0/Makefile
si(4):~/tmp:41> cd pl0/
si(4):~/tmp/pl0:42> make ControlUnit.o
ghc -prof -auto-all -K20m -H100m -O -c Instructions.hs
ghc -prof -auto-all -K20m -H100m -O -c Matrix.hs
ghc -prof -auto-all -K20m -H100m -O -c Picture.hs
ghc -prof -auto-all -K20m -H100m -O -c MachineArchitecture.hs
ghc -prof -auto-all -K20m -H100m -O -c StateTrans.hs
ghc -prof -auto-all -K20m -H100m -O -c Error.hs
ghc -prof -auto-all -K20m -H100m -O -c ShowCode.hs
ghc -prof -auto-all -K20m -H100m -O -c ShowMS.hs
ghc -prof -auto-all -K20m -H100m -O -c MicroCode.hs
ghc -prof -auto-all -K20m -H100m -O -c Ppm.hs
ghc -prof -auto-all -K20m -H100m -O -c OPCode.hs
ghc -prof -auto-all -K20m -H100m -O -c ControlUnit.hs
panic! (the `impossible' happened):
CPR Analysis tried to take the lub of a function and a tuple
Please report it as a compiler bug to [EMAIL PROTECTED]
make: *** [ControlUnit.o] Error 1
si(4):~/tmp/pl0:43> ghc --version
The Glorious Glasgow Haskell Compilation System, version 4.08.2
si(4):~/tmp/pl0:44> cat /proc/version
Linux version 2.2.16 (root@sparbier) (gcc version 2.95.2 19991024
(release)) #4 Thu Oct 5 18:40:46 CEST 2000
si(4):~/tmp/pl0:45>
-------------------------------------------------------------------
the error does not occur without the profiling option,
but it also occurs without -O and with -O2 instead of -O
I hope, it's not too hard to find it
uwe schmidt
--
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bug.tgz
