Hokay, so I've installed LLVM 2.7, gotten ghc-HEAD-2009-10-23-ghc-corelibs.tar.bz2, run ./darcs-all pull -a, run ./boot, applied 
add-new-llvm-code-generator-to-ghc_.dpatch
ghc-llvmbackend-20100328.dpatch
and written  the following in mk/build.mk:

GhcWithLlvmCodeGen = YES
GhcEnableTablesNextToCode = NO
SRC_HC_OPTS        = -H64m -O0 -fasm
GhcStage1HcOpts    = -O -fasm
GhcStage2HcOpts    = -O0 -fasm
GhcLibHcOpts       = -O -fasm
SplitObjs          = NO
HADDOCK_DOCS       = NO

And when I run make,

make -r --no-print-directory -f ghc.mk all
"inplace/bin/ghc-stage2"   -H64m -O0 -fasm     -i -iutils/ghctags/. -iutils/ghctags/dist/build -iutils/ghctags/dist/build/autogen -Iutils/ghctags/dist/build -Iutils/ghctags/dist/build/autogen        -package ghc -no-user-package-conf -rtsopts     -odir utils/ghctags/dist/build -hidir utils/ghctags/dist/build -stubdir utils/ghctags/dist/build -hisuf hi -osuf  o -hcsuf hc -c utils/ghctags/./Main.hs -o utils/ghctags/dist/build/Main.o
"inplace/bin/ghc-stage2"   -H64m -O0 -fasm    -package-name dph-base-0.4.0 -hide-all-packages -i -ilibraries/dph/dph-base/. -ilibraries/dph/dph-base/dist-install/build -ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/dist-install/build -Ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/include    -optP-include -optPlibraries/dph/dph-base/dist-install/build/autogen/cabal_macros.h -package array-0.3.0.0 -package base-4.2.0.0 -package ghc-prim-0.2.0.0 -package random-1.0.0.2  -Odph -funbox-strict-fields -haddock -fcpr-off -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O -fasm -fno-warn-deprecated-flags -Wwarn     -odir libraries/dph/dph-base/dist-install/build -hidir libraries/dph/dph-base/dist-install/build -stubdir libraries/dph/dph-base/dist-install/build -hisuf hi -osuf  o -hcsuf hc -c libraries/dph/dph-base/./Data/Array/Parallel/Base/DTrace.hs -o libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/DTrace.o
"inplace/bin/ghc-stage2"   -H64m -O0 -fasm    -package-name dph-base-0.4.0 -hide-all-packages -i -ilibraries/dph/dph-base/. -ilibraries/dph/dph-base/dist-install/build -ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/dist-install/build -Ilibraries/dph/dph-base/dist-install/build/autogen -Ilibraries/dph/dph-base/include    -optP-include -optPlibraries/dph/dph-base/dist-install/build/autogen/cabal_macros.h -package array-0.3.0.0 -package base-4.2.0.0 -package ghc-prim-0.2.0.0 -package random-1.0.0.2  -Odph -funbox-strict-fields -haddock -fcpr-off -XTypeFamilies -XGADTs -XRankNTypes -XBangPatterns -XMagicHash -XUnboxedTuples -XTypeOperators -O -fasm -fno-warn-deprecated-flags -Wwarn     -odir libraries/dph/dph-base/dist-install/build -hidir libraries/dph/dph-base/dist-install/build -stubdir libraries/dph/dph-base/dist-install/build -hisuf hi -osuf  o -hcsuf hc -c libraries/dph/dph-base/./Data/Array/Parallel/Base/Hyperstrict.hs -o libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o
Segmentation fault
make[1]: *** [libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/Hyperstrict.o] Error 139
make[1]: *** Waiting for unfinished jobs....
Segmentation fault
make[1]: *** [utils/ghctags/dist/build/Main.o] Error 139
Segmentation fault
make[1]: *** [libraries/dph/dph-base/dist-install/build/Data/Array/Parallel/Base/DTrace.o] Error 139
make: *** [all] Error 2

I get segfaults.  Segfaults make me unhappy.  Halp plz?

Louis Wasserman
wasserman.louis@gmail.com
http://profiles.google.com/wasserman.louis