haskell - LLVM-General segmentation fault -

i have 2 llvm.general.module modules, , b. goal link b , write assembly file. playing moment toy program see how use llvm-general interface. have used llvm-general-pure package create llvm.general.ast modules compiler backends.

i take these asts c++ world (llvm.general.module), link them, , write assembly. found error while linking c++ modules, have feeling error in way produce c++ objects. here did:

convasttomode ast = <- withcontext $ \context ->     x <- runerrort $ withmodulefromast context ast $ \mod -> return mod      return x return 

comment: couldn't find function of type module -> module (like moduleast make ast c++ object when using, withmodulefromllvmassembly) give withmodulefromast, module back, used unit. reading of can module ast, , want module, took it. guessing wrong, figured something.

when execute code on 1 of llvm.general.ast.module modules, code seems run fine. when try use it, breaks. example, if x llvm.general.ast.module, , do

mod <- convasttomode x case mod of     left _ -> error ""     right mod' ->         assemb <- modulellvmassembly mod         putstrln assemb 

i segmentation fault.

llvm-general-3.4.3.0 llvm-3.4

update: tried following:

writeasttollvmassembly ast filename =     withcontext $ \context ->         runerrort $ withmodulefromast context ast $ \mod ->             runerrort $ writellvmassemblytofile (file filename) mod     return () 

gives:

*** error in `./llvmimportandlinktest': munmap_chunk(): invalid pointer: 0x00000000012db000 *** aborted (core dumped) 

however,

showllvmassfromast ast =     str <- withcontext $ \context ->        str2 <- runerrort $ withmodulefromast context ast $ \mod ->             str3 <- modulellvmassembly mod              return str3        return str2     case str of           left _ -> error "ast not convertible string"          right st -> return st 

gives no problems.

llvm-general.3.4.3.0 llvm-3.4

for example, llvm.general.ast.module found http://lpaste.net/106407

that pretty printed version of ast obtained uploading http://lpaste.net/106408 llvm-general.

that llvm assembly generated clang compiling c file.

solution upgrade version of llvm-general changing llvm-general dependency llvm-general >= 3.4.3 fixes known bug in implementation.