ghci crashed when ``-with-rtsopts=-A64m'' is specified
$ cat /tmp/t1.hs
{-# OPTIONS -O2 -with-rtsopts=-A64m #-}
main = putStrLn "hello, world!"
wangbj@nuc ~/hs $ runghc /tmp/t1.hs
ghc: panic! (the 'impossible' happened)
(GHC version 7.10.2 for x86_64-unknown-linux):
floatExpr tick break<0>()
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug