Unregisterised build fails in GHC.PrimopWrappers

This appears to be a problem with the new 2-result primops:

/tmp/ghc13519_0/ghc13519_0.hc: In function ‘ghczmprim_GHCziPrimopWrappers_timesWord2zh_entry’:

/tmp/ghc13519_0/ghc13519_0.hc:6443:0:
     error: ‘_c1aU’ undeclared (first use in this function)

/tmp/ghc13519_0/ghc13519_0.hc:6443:0:
     error: (Each undeclared identifier is reported only once

/tmp/ghc13519_0/ghc13519_0.hc:6443:0:
     error: for each function it appears in.)

/tmp/ghc13519_0/ghc13519_0.hc:6444:0:
     error: ‘_c1aW’ undeclared (first use in this function)

/tmp/ghc13519_0/ghc13519_0.hc:6445:0:
     error: ‘_c1aY’ undeclared (first use in this function)

/tmp/ghc13519_0/ghc13519_0.hc:6446:0:
     error: ‘_c1b0’ undeclared (first use in this function)
/tmp/ghc13519_0/ghc13519_0.hc: In function ‘ghczmprim_GHCziPrimopWrappers_plusWord2zh_entry’:

/tmp/ghc13519_0/ghc13519_0.hc:6509:0:
     error: ‘_c1bm’ undeclared (first use in this function)

/tmp/ghc13519_0/ghc13519_0.hc:6510:0:
     error: ‘_c1bo’ undeclared (first use in this function)
make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o] Error 1

Trac metadata

Trac field	Value
Version	7.4.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	highest
Resolution	Unresolved
Component	Compiler
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