"inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf [...]  libraries/base/dist-install/build/GHC/Event.dyn_o
"inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf [...] aries/base/dist-install/build/System/Timeout.dyn_o
"inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf [...] /base/dist-install/build/Text/Show/Functions.dyn_o
"inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf [...] ries/base/dist-install/build/GHC/Event/EPoll.dyn_o
"inplace/bin/mkdirhier" libraries/base/dist-install/build/cbits//.
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] es/base/dist-install/build/cbits/DarwinUtils.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] es/base/dist-install/build/cbits/PrelIOUtils.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] braries/base/dist-install/build/cbits/SetEnv.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] raries/base/dist-install/build/cbits/WCsubst.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] ies/base/dist-install/build/cbits/Win32Utils.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] ries/base/dist-install/build/cbits/consUtils.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] ibraries/base/dist-install/build/cbits/iconv.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...] ies/base/dist-install/build/cbits/inputReady.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-s [...]  libraries/base/dist-install/build/cbits/md5.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-stack-protector -optc-Ilibraries/base/include -optc-I/usr/local/include -optc-DOPTIMISE_INTEGER_GCD_LCM -optc-I'/usr/local/include' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/libraries/integer-gmp/include' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/rts/dist/build' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/includes' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/includes/dist-derivedconstants/h [...] /base/dist-install/build/autogen -Ilibraries/base/dist-install/build -Ilibraries/base/dist-install/build/autogen -Ilibraries/base/include -I/usr/local/include  -optP-DOPTIMISE_INTEGER_GCD_LCM -optP-include -optPlibraries/base/dist-install/build/autogen/cabal_macros.h -package ghc-prim-0.3.1.0 -package integer-gmp-0.5.1.0 -package rts-1.0 -package-name base -XHaskell2010 -O2  -no-user-package-db -rtsopts      -c libraries/base/cbits/primFloat.c -o libraries/base/dist-install/build/cbits/primFloat.dyn_o
"inplace/bin/ghc-stage1" -optc-U__i686 -optc-fno-stack-protector -optc-Ilibraries/base/include -optc-I/usr/local/include -optc-DOPTIMISE_INTEGER_GCD_LCM -optc-I'/usr/local/include' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/libraries/integer-gmp/include' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/rts/dist/build' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/includes' -optc-I'/usr/home/ghc-builder/work/builder/tempbuild/build/includes/dist-derivedconstants/header' -fPIC -dynamic  -H32m -O    -package-name base-4.7.1.0 -hide-all-packages -i -ilibraries/base/. -ilibraries/base/dist-install/build -ilibraries/base/dist-install/build/autogen -Ilibraries/base/dist-install/build -Ilibraries/base/dist-install/build/autogen -Ilibraries/base/include -I/usr/local/include  -optP-DOPTIMISE_INTEGER_GCD_LCM -optP-include -optPlibraries/base/dist-install/build/autogen/cabal_macros.h -package ghc-prim-0.3.1.0 -package integer-gmp-0.5.1.0 -package rts-1.0 -package-name base -XHaskell2010 -O2  -no-user-package-db -rtsopts      -c libraries/base/cbits/sysconf.c -o libraries/base/dist-install/build/cbits/sysconf.dyn_o
"inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O    -package-name ghc-prim-0.3.1.0 -hide-all-packages -i -ilibraries/ghc-prim/. -ilibraries/ghc-prim/dist-install/build -ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/dist-install/build -Ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/.    -optP-include -optPlibraries/ghc-prim/dist-install/build/autogen/cabal_macros.h -package rts-1.0 -package-name ghc-prim -XHaskell2010 -O2  -no-user-package-db -rtsopts      -odir libraries/ghc-prim/dist-install/build -hidir libraries/ghc-prim/dist-install/build -stubdir libraries/ghc-prim/dist-install/build -split-objs -dynamic-too -c libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.hs -o libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o -dyno libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.dyn_o
ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 7.9.20140626 for i386-portbld-freebsd):
	RegAllocLinear.allocRegsAndSpill: no spill candidates

    allocating vreg:  VirtualRegI n1Q6
    assignment:       [(c1PV,InMem 2),(n1Q5,InBoth (RealRegSingle 3) 0),(n1Q6,InMem 1),(n1Q7,InMem 3),(n1Q9,InReg (RealRegSingle 2))]
    freeRegs:         FreeRegs 4282318848
    initFreeRegs:     FreeRegs 4282318861

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

gmake[1]: *** [libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o] Error 1
gmake: *** [all] Error 2