igloo@userpc15:~/debug$ ghc -O -split-objs -c Foo.hs -v -keep-tmp-files
Glasgow Haskell Compiler, Version 6.4.2, for Haskell 98, compiled by GHC version 6.4.2
Using package config file: /usr/lib/ghc-6.4.2/package.conf
Hsc static flags: -static -fglobalise-toplev-names
*** Checking old interface for Foo:
*** Parser:
*** Renamer/typechecker:
*** Desugar:
    Result size = 50
*** Simplify:
    Result size = 30
    Result size = 30
*** Specialise:
    Result size = 30
*** Float out (not lambdas, not constants):
    Result size = 30
*** Float inwards:
    Result size = 30
*** Simplify:
    Result size = 30
*** Simplify:
    Result size = 30
*** Simplify:
    Result size = 30
*** Demand analysis:
    Result size = 30
*** Worker Wrapper binds:
    Result size = 30
*** GlomBinds:
*** Simplify:
    Result size = 30
*** Float out (not lambdas, constants):
    Result size = 30
*** Common sub-expression:
    Result size = 21
*** Float inwards:
    Result size = 21
*** Simplify:
    Result size = 21
*** Tidy Core:
    Result size = 21
*** CorePrep:
    Result size = 21
*** Stg2Stg:
*** CodeGen:
*** CodeOutput:
*** C Compiler
gcc -x c /tmp/ghc26801.hc -o /tmp/ghc26801.raw_s -DDONT_WANT_WIN32_DLL_SUPPORT -fno-defer-pop -fomit-frame-pointer -fno-builtin -DSTOLEN_X86_REGS=4 -ffloat-store -fno-strict-aliasing -v -S -Wimplicit -O -D__GLASGOW_HASKELL__=604 -DUSE_SPLIT_MARKERS -I . -I /usr/lib/ghc-6.4.2/include
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --enable-languages=c,c++,java,fortran,objc,obj-c++,ada,treelang --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-4.1-1.4.2.0/jre --enable-mpfr --with-tune=i686 --enable-checking=release i486-linux-gnu
Thread model: posix
gcc version 4.1.2 20060613 (prerelease) (Debian 4.1.1-5)
 /usr/lib/gcc/i486-linux-gnu/4.1.2/cc1 -quiet -v -I . -I /usr/lib/ghc-6.4.2/include -DDONT_WANT_WIN32_DLL_SUPPORT -DSTOLEN_X86_REGS=4 -D__GLASGOW_HASKELL__=604 -DUSE_SPLIT_MARKERS /tmp/ghc26801.hc -quiet -dumpbase ghc26801.hc -mtune=i686 -auxbase-strip /tmp/ghc26801.raw_s -O -Wimplicit -version -fno-defer-pop -fomit-frame-pointer -fno-builtin -ffloat-store -fno-strict-aliasing -o /tmp/ghc26801.raw_s
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 .
 /usr/lib/ghc-6.4.2/include
 /usr/local/include
 /usr/lib/gcc/i486-linux-gnu/4.1.2/include
 /usr/include
End of search list.
GNU C version 4.1.2 20060613 (prerelease) (Debian 4.1.1-5) (i486-linux-gnu)
        compiled by GNU C version 4.1.2 20060613 (prerelease) (Debian 4.1.1-5).
GGC heuristics: --param ggc-min-expand=99 --param ggc-min-heapsize=129565
Compiler executable checksum: 3efbb0b5b3119ec825babd3e1cecb910
*** Mangler
/usr/lib/ghc-6.4.2/ghc-asm /tmp/ghc26801.raw_s /tmp/ghc26801.split_s 4
*** Splitter
/usr/lib/ghc-6.4.2/ghc-split /tmp/ghc26801.split_s /tmp/ghc26801.split /tmp/ghc26801.split
*** Assembler
gcc -c -o Foo_split/Foo__1.o /tmp/ghc26801.split__1.s